| Ag |
|
|
| Ag |
pH |
| Ag |
solute-volatilization interference in flame spectroscopy |
| Ag+ |
interfering substance in electroanalytical chemistry |
| AgBr |
|
|
|
AgBr
|
molecular rearrangement |
| AgCl |
|
|
| AgCl |
pH |
| AgCl |
gravimetric method |
| AgI |
|
|
| β-AgI |
polymorphic transition |
| AgI |
crystalline electrodes |
| α-AgI |
polymorphic transition |
| AgNO3 |
|
|
| AgNO3 |
gravimetric method |
| Ag2S |
|
|
| Ag2S |
crystalline electrodes |
| Al |
|
|
| Al |
solute-volatilization interference in flame spectroscopy
|
| AlCl3 |
|
|
| AlCl3 |
ionization |
| AlNb3 |
|
|
| Nb3Al |
superconducting transition |
| Al2 |
|
|
| 2Al3+ |
mean activity of an electrolyte in
solution |
| Al2MgO4 |
|
|
| MgAl2O4 |
solute-volatilization interference in flame spectroscopy |
| Ar |
|
|
| Ar+ |
diamond by CVD |
| Ar |
gas-filled phototube |
| Ar |
excimer lamp |
| Ar+ |
diamond-like carbon films |
| Ar |
cryogenic sampling |
| Ar |
Penning gas mixture |
| ArHOSe |
|
|
| ArSeOH |
selenenic acids |
| Ar2 |
|
|
| Ar2 |
excimer lamp |
| As |
|
|
| As |
photoconductive detector |
| As |
poison in
catalysis |
| AsF5 |
|
|
| AsF5 |
dopant |
| AsH2 |
|
|
| H2As+ |
arsanylium ions |
| AsH2O |
|
|
| H2As(=O)+ |
arsanylium ions |
| AsH2O2 |
|
|
| HAs(OH)2 |
arsonous acids |
| AsH3 |
|
|
| AsH3 |
arsines |
| AsH3 |
arsanes |
| AsH3O |
|
|
| H2AsOH |
arsinous acids |
| H3As=O |
arsine oxides |
| AsH3O2 |
|
|
| AsH3O2 |
arsinic acids |
| AsH3O3 |
|
|
| AsH3O3 |
arsonic acids |
| AsH4 |
|
|
| (H4As+) |
onium compounds |
| AsH5 |
|
|
| AsH5 |
arsoranes |
| As3H5 |
|
|
| H2AsAsHAsH2 |
arsanes |
| As3H11 |
|
|
| H4AsAsH3AsH4 |
arsanes |
| Au |
|
|
| Au |
disproportionation |
| 197Au |
nuclear quadrupole moment
(spectroscopic) |
| AuFe |
|
|
| Au–Fe |
spin-glass transition |
| B |
|
|
| B |
organically modified silica |
| BH |
|
|
| HB+ |
heteroconjugation |
| HB: |
carbene analogues |
| BH6N |
|
|
H3N BH3 |
dative bond |
| BN |
|
|
| NB |
dative bond |
| B2BaO4 |
|
|
| BaB2O4 |
optical parametric oscillator |
| B2H |
|
|
| B–H–B |
electron-deficient bond |
| B2H6 |
|
|
| B2H6 |
electron-deficient bond |
| B5H9 |
|
|
| B5H9 |
boranes |
| Ba |
|
|
| Ba2+ |
mean activity of an electrolyte in
solution |
| BaO3Ti |
|
|
| BaTiO3 |
ferroelectric (antiferroelectric)
transition |
| BiH3 |
|
|
| BiH3 |
bismuthines |
| BiH3 |
bismuthanes |
| BiH4 |
|
|
| (H4Bi+) |
onium compounds |
| Br |
|
|
| Br |
excimer lamp |
| Br |
sulfonium compounds |
| Br |
addition reaction |
| Br |
telomerization |
| Br |
fragmentation |
| Br |
molecular rearrangement |
| Br |
allylic substitution reaction |
| Br− |
leaving group |
| Br+ |
halonium ions |
| BrH |
|
|
| BrH |
leaving group |
| BrH2 |
|
|
| (H2Br+) |
onium compounds |
| BrKr |
|
|
| KrBr |
excimer lamp |
| BrXe |
|
|
| XeBr |
excimer lamp |
| C |
|
|
| C |
multiply labelled |
| C |
transferases |
| C |
strain energy |
| –C= |
heteroarenes |
| C |
organically modified silica |
| 13C |
chemical shift,  in NMR |
| C |
potential-energy (reaction) surface |
| C |
tautomerism |
| C |
dipolar compounds |
| C |
methylotrophic microorganisms |
| C |
hydrogen bond in theoretical
organic chemistry |
| C |
repulsive potential-energy surface |
| 12C |
relative micellar mass |
| 12C |
molecular ion in mass
spectrometry |
| C |
spin polarization |
| CB |
|
|
| B–C |
potential-energy (reaction) surface |
| BC |
repulsive potential-energy surface |
| CBrCl3 |
|
|
| CBrCl3 |
telomerization |
| CBr4 |
|
|
| CBr4 |
rotator phase transition |
| CCaO3 |
|
|
| CaCO3 |
monotropic transition |
| CCl |
|
|
| C–Cl |
coordination |
| CClF3 |
|
|
| CF3Cl |
background concentration (level) in atmospheric chemistry |
| CCl2 |
|
|
| :CCl2 |
carbenes |
| CCl2 |
α-addition (alpha-addition) |
| CCl2F2 |
|
|
| CF2Cl2 |
background concentration (level) in atmospheric chemistry |
| CCl3 |
|
|
| Cl3C− |
carbanion |
| CCl3 |
telomerization |
| Cl3C. |
telomerization |
| Cl3C. |
chain transfer |
| CF |
|
|
| C–F |
negative hyper-conjugation |
| CH |
|
|
| CH |
strain energy |
| CH |
agostic |
| C–H |
symbiosis |
| C–H |
steric isotope effect |
| HC… |
carbynes |
| CH |
bicycle-pedal (BP)
mechanism |
| C–H |
hypercoordination |
| C–H |
persistent |
| –CH= |
dipyrrins |
| CH |
carbaboranes |
| –CH= |
quinones |
| C–H |
σ, π (sigma, pi) |
| CHN |
|
|
| HC≡N |
isocyanides |
| HN+≡C− |
isocyanides |
| C=NH |
imines |
| HC≡N |
nitriles |
| HC≡N |
cyanides |
| CHNO |
|
|
| HOC≡N |
isocyanates |
| HN=C=O |
isocyanates |
| HON=C: |
fulminates |
| HC≡N+–O− |
fulminates |
| HOC≡N |
cyanates |
| CHNS |
|
|
| HSC≡N |
thiocyanates |
| CHNSe |
|
|
| HSeCN |
selenocyanates |
| CHO |
|
|
| –CHO |
characteristic group in
organic nomenclature |
| CHO2 |
|
|
| –COOH |
characteristic group in
organic nomenclature |
| –COOH |
polyacid |
| CH2 |
|
|
| CH2 |
strain energy |
| H2C |
silylene |
| CH2 |
insertion |
| :CH2 |
carbenes |
| H2C: |
carbenes |
| CH2 |
homoconjugation |
| –CH2– |
meso structures in
polymers |
| H2C.+ |
carbynium ions |
| H2C.+ |
carbene radical cations |
| CH2 |
tropyl radicals |
| CH2 |
hypercoordination |
| –CH2– |
pyrromethenes |
| CH2 |
tropylium ions |
| H2C: |
alkylidenes |
| –CH2– |
hydrocarbylene groups |
| CH2Cl |
|
|
| ClCH2– |
organyl groups |
| CH2N2 |
|
|
| CH2=N2 |
diazo compounds |
| HN=C=NH |
carbodiimides |
| CH2=N=N |
isoelectronic |
| CH2Na2O4 |
|
|
| Na2CO3·10H2O |
efflorescence |
| CH2O |
|
|
| CHOH |
oxo compounds |
| CHOH |
prochirality |
| CH2O |
fragmentation |
| CH2O |
smog chamber in atmospheric
chemistry |
| CH3 |
|
|
| CH3 |
allylic intermediates |
| CH3 |
dimerization |
| CH3 |
colligation |
| CH3 |
bond-dissociation energy,  |
| CH3+ |
even-electron ion |
| CH3 |
strain energy |
| CH3 |
fragmentation |
| CH3 |
chain reaction |
| .CH3 |
radical (free radical) |
| CH3 |
benzylic intermediates |
| CH3(2A'2) |
isogyric reaction |
| CH3 |
abstraction |
| CH3 |
σ, π (sigma, pi) |
| CH3Cl |
|
|
| CH3Cl |
molecular rearrangement |
| CH3Cl |
substitution reaction |
| CH3ClO2S |
|
|
| CH3ClO2S |
acyl halides |
| CH3F |
|
|
| CH3F |
molecular laser |
| CH3I |
|
|
| CH3I |
identity reaction |
| CH3IMg |
|
|
| MeMgI |
organometallic compounds |
| CH3N |
|
|
| CH3N: |
carbene analogues |
| CH3N: |
nitrenes |
| CH3NO2 |
|
|
| CH3NO2 |
azinic acids |
| CH3NO2 |
carbamates |
| CH3NO2S |
|
|
| CH3N=S(=O)2 |
sulfonylamines |
| CH3NaS |
|
|
| CH3S−Na+ |
thiolates |
| CH3O |
|
|
| –CH2OH |
uronic acids |
| CH3O+ |
oxylium ions |
| OCH3 |
π-electron acceptor/donor group |
| CH3S |
|
|
| CH3–S– |
sulfenyl groups |
| CH3S+ |
sulfenylium ions |
| MeS– |
organyl groups |
| CH3S. |
sulfenyl radicals |
| CH4 |
|
|
| CH4 |
multiply labelled |
| CH4 |
reduced species |
| CH4 |
molecular entity |
| CH4 |
stoichiometry |
| CH4 |
bond energy (mean bond energy) |
| CH4 |
composition of pure air in
atmospheric chemistry |
| CH4(1A1) |
isogyric reaction |
| CH4 |
isotopologue |
| 13CH4+ |
isotope pattern in mass
spectrometry |
| CH4 |
isotope pattern in mass
spectrometry |
| 12CH4+ |
isotope pattern in mass
spectrometry |
| CH4 |
spectator mechanism |
| CH4 |
symbiosis |
| CH4 |
bond-dissociation energy, |
| CH4 |
abstraction |
| CH4FN |
|
|
| CH4FN |
negative hyper-conjugation |
| CH4N2O |
|
|
| CH4N2O |
isoureas |
| CH4N4 |
|
|
| H2NN=CHN=NH |
formazans |
| CH4O |
|
|
| CH3OH |
Brønsted acid |
| (CH3OH2+) |
lyonium ion |
| CH4O |
substitution reaction |
| CH4O |
line formula |
| CH4O |
oxidative coupling |
| CH4O |
α-addition (alpha-addition) |
| CH3OH |
amphiprotic (solvent) |
| CH4O4 |
|
|
| C(OH)4 |
ortho acids |
| CH4Si |
|
|
| H2Si=CH2 |
heteroalkenes |
| CH5 |
|
|
| CH5+ |
coordination number |
| +CH5 |
alkanium ions |
| CH5B |
|
|
| CH5B |
spectator mechanism |
| CH5N3O |
|
|
| NH2NHC(=O)NH2 |
semicarbazones |
| CH5P |
|
|
| CH3PH2 |
phosphines |
| CIN |
|
|
| ICN |
pseudohalogens |
| CKN |
|
|
| KCN |
order-disorder transition |
| CKNO |
|
|
| KOCN |
cyanates |
| CN |
|
|
| CN |
apicophilicity |
| CN− |
interfering substance in
electroanalytical chemistry |
| –C≡N |
characteristic group in
organic nomenclature |
| C–N |
lyases |
| CN− |
prochirality |
| CN− |
order-disorder transition |
| CN− |
pseudohalogens |
| –CN |
carbonitriles |
| C–N |
hydrolases |
| C–N |
ligases (synthetases) |
| CNNa |
|
|
| NaCN |
cyanides |
| CNNaO |
|
|
| Na+[–C≡N+O−] |
fulminates |
| CNO |
|
|
| –NCO |
characteristic group in
organic nomenclature |
| CNS |
|
|
| N≡C–S− |
organoheteryl groups |
| SCN− |
pseudohalogens |
| CNS2 |
|
|
| (SCN)2 |
pseudohalogens |
| CO |
|
|
| C=O |
carbonyl compounds |
| C=O |
oxo compounds |
| CO |
photodecarbonylation |
| CO |
isoelectronic |
| CO |
oxocarbons |
| CO |
air pollutant |
| C–O |
lyases |
| C–O |
hydrolases |
| C–O |
ligases (synthetases) |
| –C(=O)– |
quinones |
| CO2 |
|
|
| CO2 |
sublimation |
| CO2 |
laser |
| CO2 |
reduced species |
| CO2 |
photodecarboxylation |
| CO2 |
photophosphorylation |
| CO2 |
molecular laser |
| CO2 |
composition of pure air in
atmospheric chemistry |
| O=C=O |
heterocumulenes |
| CO2 |
acid rain in atmospheric
chemistry |
| O=C=O |
oxocarbons |
| CO2 |
cryogenic sampling |
| CO2 |
sanitary land fill |
| CO2 |
photosynthesis |
| CO2 |
greenhouse effect in
atmospheric chemistry |
| CO2 |
carbon dioxide laser (CO2
laser) |
| CS |
|
|
| C–S |
ligases (synthetases) |
| CY |
|
|
| C–Y |
bisecting conformation (eclipsing
conformation) |
| C2 |
|
|
| C–C |
lyases |
| C–C |
eclipsing strain |
| C–C |
orbital symmetry |
| C–C |
hydrolases |
| C–C |
ligases (synthetases) |
| C–C |
photohydration |
| C–C |
symbiosis |
| C2H |
|
|
| HC≡C− |
carbanion |
| C2HNa |
|
|
| NaC≡CH |
acetylides |
| C2H2 |
|
|
| H2C=C: |
carbenes |
| H2C=C: |
vinylidenes |
| –CH=CH– |
heteroarenes |
| C2H2 |
flow rate in flame emission
and absorption spectrometry |
| C2H2 |
local fraction atomized,  ,  in flame emission and
absorption spectrometry |
| C2H2O |
|
|
| CH2=C=O |
heterocumulenes |
| CH2=C=O |
isoelectronic |
| C2H3 |
|
|
| CH2=CH– |
vinylic groups |
| C2H3AgO2 |
|
|
| C2H3AgO2 |
molecular rearrangement |
| C2H3Cl |
|
|
| C2H3Cl |
isodesmic reaction |
| :Cl–CH=CH2 |
conjugated system (conjugation) |
| C2H3ClO |
|
|
| C2H3ClO |
acyl halides |
| C2H3Cl3 |
|
|
| C2H3Cl3 |
isodesmic reaction |
| C2H3N |
|
|
| CH3C≡N |
cyanides |
| C2H3NS |
|
|
| CH3SC≡N |
thiocyanates |
| C2H3O |
|
|
| CH3C(=O)– |
organyl groups |
| C2H3O2 |
|
|
| –CH2CO2H |
prochirality |
| C2H3O2 |
ionization |
| C2H3O2 |
proton transfer reaction |
| CH3CO2− |
Brønsted base |
| C2H3O2 |
nucleophilic catalysis |
| C2H4 |
|
|
| C2H4 |
disproportionation |
| C2H4 |
de Mayo reaction |
| C2H4 |
isodesmic reaction |
| C2H4 |
attachment |
| –CH2–CH2– |
meso structures in
polymers |
| C2H4 |
ene reaction |
| C2H4 |
sorptive insertion in surface
catalysis |
| +CH2–+CH2 |
dicarbenium ions |
| C2H4 |
hydration |
| C2H4 |
reactive adsorption |
| C2H4 |
negative hyper-conjugation |
| C2H4 |
hyperconjugation |
| C2H4 |
sudden polarization |
| C2H4Cl2 |
|
|
| C2H4Cl2 |
isodesmic reaction |
| C2H4Cl2NO |
|
|
| C2H4Cl2NO |
aminoxyl radicals |
| (ClCH2)2N–O. |
nitroxides |
| C2H4Cl2O |
|
|
| C2H4Cl2O |
α-addition (alpha-addition) |
| C2H4Cl3Pt |
|
|
| [PtCl3(CH2=CH2)]− |
chelation |
| C2H4F |
|
|
| C2H4F |
negative hyper-conjugation |
| C2H4F |
hyperconjugation |
| C2H4N |
|
|
| CH3–CH=N. |
iminyl radicals |
| C2H4O |
|
|
| C2H4O |
stoichiometry |
| C2H4O2 |
|
|
| C2H4O2 |
ionization |
| CH3CO2H |
Brønsted acid |
| C2H4O2 |
nucleophilic catalysis |
| CH3CO2H |
prochirality |
| C2H4O2 |
proton transfer reaction |
| C2H4O2 |
leaving group |
| C2H4O2 |
catalytic hydrogenolysis |
| C2H4O3 |
|
|
| CH3C(=O)OOH |
per acids |
| CH3C(=O)OOH |
peroxy acids |
| C2H5 |
|
|
| CH3CH2+ |
carbenium ion |
| C2H5 |
disproportionation |
| CH3CH2– |
organyl groups |
| C2H5Br |
|
|
| 13CCH5Br+. |
isotopic molecular ion |
| 13C2H581Br+. |
isotopic molecular ion |
| C2H581Br+. |
isotopic molecular ion |
| C2H579Br |
molecular ion in mass
spectrometry |
| C2H5BrO |
|
|
| BrCH2CH2OH |
halohydrins |
| C2H5Cl |
|
|
| C2H5Cl |
nucleophile (nucleophilic) |
| C2H5N |
|
|
| MeN=CH2 |
heteroalkenes |
| C2H5NO2 |
|
|
| H3N+CH2C(=O)O− |
zwitterionic compounds/zwitterions |
| C2H5N3O2 |
|
|
| H2NNHC(=O)C(=O)NH2 |
semioxamazones |
| C2H6 |
|
|
| C2H6 |
disproportionation |
| C2H6 |
catalytic hydrogenolysis |
| C2H6 |
dimerization |
| C2H6 |
pseudorotation |
| CH313CH3 |
principal ion in mass
spectrometry |
| C2H6CuLi |
|
|
| Li+[CuMe2]− |
organometallic compounds |
| C2H6NO |
|
|
| C2H6NO |
aminoxides |
| C2H6N2 |
|
|
| C2H6N2 |
carboxamidines |
| C2H6N2 |
isoelectronic |
| C2H6N4S2 |
|
|
| H2NC(=NH)SSC(=NH)NH2 |
formamidine disulfides |
| C2H6O |
|
|
| CH3–CH[2H]–OH |
singly labelled |
| CH3CH2OH |
constitutional isomerism |
| CH3OCH3 |
constitutional isomerism |
| CH3CH2OH |
prochirality |
| CH3–CH2–[18O][2H] |
mixed labelled |
| C2H6O |
hydration |
| C2H6O2 |
|
|
| HOCH2CH2OH |
glycols |
| C2H6S |
|
|
| MeCH2SH |
thiols |
| C2H7 |
|
|
| [C2H7]+ |
alkanium ions |
| C2H7As |
|
|
| CH3CH2AsH2 |
arsines |
| C2H7AsO2 |
|
|
| C2H7AsO2 |
arsinic acids |
| C2H7NS |
|
|
| CH3CH2SNH2 |
amides |
| C2H5SNH2 |
sulfenamides |
| C2H7S |
|
|
| (CH3)2S+H |
onium compounds |
| C2H10O3Si3 |
|
|
| C2H10O3Si3 |
cyclosiloxanes |
| C2N |
|
|
| (CN)2 |
pseudohalogens |
| C3 |
|
|
| C=C=C |
chirality axis |
| C3H2 |
|
|
| c-(CH2)3 |
homodesmotic reaction |
| C3H3AsO |
|
|
| (CH3)3As=O |
arsine oxides |
| C3H3Bi |
|
|
| (CH3)3Bi |
bismuthines |
| C3H3N |
|
|
| CH2=CH–C≡N |
conjugated system (conjugation) |
| C3H4 |
|
|
| H2C=CHCH: |
carbenes |
| H2C=CHC:H |
vinyl carbenes |
| C3H4O2 |
|
|
| C3H4O2 |
de Mayo reaction |
| C3H5 |
|
|
| H2C=CHCH2+ |
allylic intermediates |
| C3H5 |
delocalization |
| CH3CH2C… |
alkylidynes |
| CH2=CHCH2 |
allylic groups |
| C3H5NO |
|
|
| C3H5NO |
lactams |
| HOCH2CH2C≡N |
cyanohydrins |
| C3H5NO3 |
|
|
| C3H5NO3 |
amic acids |
| C3H5NO3S |
|
|
| C3H5NO3S |
imides |
| C3H5NSe |
|
|
| CH3CH2SeCN |
selenocyanates |
| C3H5O |
|
|
| C3H5O |
contributing structure |
| C3H5O |
abstraction |
| C3H6 |
|
|
| +CH2CH2–+CH2 |
dicarbenium ions |
| C3H6.+ |
radical ion |
| C3H6 |
corrinoids (cobalamines, corphyrins, corrins,
vitamin B12 compounds) |
| H2C.–CH2–C.H2 |
diradicals |
| CH3CH2CH: |
alkylidenes |
| –CH2CH2CH2– |
hydrocarbylene groups |
| C3H6 |
ene reaction |
| C3H6O |
|
|
| C3H6O |
abstraction |
| C3H6O |
epoxy compounds |
| C3H6O |
proton transfer reaction |
| C3H6O |
Paterno–Büchi reaction |
| C3H6O |
isoelectronic |
| C3H6O |
fragmentation |
| C3H6O |
dimerization |
| C3H6S |
|
|
| CH3CH2C(=S)H |
thioaldehydes |
| C3H7 |
|
|
| CH3CH2CH2+ |
carbenium ion |
| CH3CH2C.H2 |
alkyl radicals |
| C3H7Br |
|
|
| C3H7Br |
molecular rearrangement |
| C3H7ClO |
|
|
| ClCH2CH2CH2OH |
halohydrins |
| C3H7N |
|
|
| EtCH=NH |
aldimines |
| C3H7O |
|
|
| C3H7O |
fragmentation |
| C3H7O |
proton transfer reaction |
| C3H8 |
|
|
| C3H8 |
catalytic hydrogenolysis |
| C3H8O2S |
|
|
| (CH3)2CHS(=O)OH |
sulfinic acids |
| C2H5S(=O)2CH3 |
sulfones |
| C3H9ClP |
|
|
| Cl(CH3)3P+ |
onium compounds |
| C3H9ClS |
|
|
| [(CH3)3S]+Cl− |
sulfonium compounds |
| C3H9N |
|
|
| C3H9N |
ammoniumyl radical ions |
| NMe3 |
leaving group |
| C3H9N |
leaving group |
| C3H9NO |
|
|
| (CH3)3N+–O− |
zwitterionic compounds/zwitterions |
| C3H9NO2S |
|
|
| C3H9NO2S |
amides |
| C3O2 |
|
|
| O=C=C=C=O |
heterocumulenes |
| O=C=C=C=O |
oxocarbons |
| C4H4 |
|
|
| 3 CH2=CH2 |
homodesmotic reaction |
| C4H4N2 |
|
|
| C4H4N2 |
pyrimidine bases |
| C4H4N2 |
heteroarenes |
| C4H4O2 |
|
|
| HO[CH2]4OH |
glycols |
| C4H4O2 |
isolated double bonds |
| C4H4S |
|
|
| C4H4S |
heteroarenes |
| C4H5N |
|
|
| C4H5N |
indicated hydrogen |
| C4H5NO2 |
|
|
| C4H5NO2 |
imides |
| C4H6 |
|
|
| C4H6 |
attachment |
| C4H6 |
non-Kekulé molecules |
| C4H6 |
addition reaction |
| CH2=C(C.H2)2 |
trimethylenemethanes |
| CH3–CH=C=CH2 |
dienes |
| CH2=CH–CH=CH2 |
dienes |
| CH2=CH–CH=CH2 |
conjugated system (conjugation) |
| 3 CH3–CH3 |
homodesmotic reaction |
| C4H6 |
cheletropic reaction |
| C4H6 |
s-cis, s-trans |
| C4H6Br2 |
|
|
| C4H6Br2 |
addition reaction |
| C4H6O |
|
|
| C4H6O |
oxa-di-π-methane rearrangement |
| C4H6O2S |
|
|
| C4H6O2S |
cheletropic reaction |
| C4H6O3 |
|
|
| C4H6O3 |
acid anhydrides |
| C4H6O3 |
nucleophilic catalysis |
| C4H6O4 |
|
|
| C4H6O4 |
oxidative coupling |
| C4H6O6 |
|
|
| C4H6O6 |
meso-compound |
| C4H7Br |
|
|
| C4H7Br |
allylic substitution reaction |
| C4H7ClO2Zn |
|
|
| ClZnCH2C(=O)OEt |
organometallic compounds |
| C4H7NO |
|
|
| (CH3)2C(OH)C≡N |
cyanohydrins |
| C4H7Y |
|
|
| C4H7Y |
chain polymerization |
| C4H8 |
|
|
| C4H8 |
addition reaction |
| C4H8 |
cycloalkanes |
| C4H8 |
anti |
| C4H8 |
hyperconjugation |
| C4H8Br2 |
|
|
| C4H8Br2 |
anti |
| C4H8O |
|
|
| C4H8O |
multiply labelled |
| CH3CH2COCH3 |
prochirality |
| C4H8O |
allylic substitution reaction |
| C4H8S |
|
|
| CH3C(=S)CH2CH3 |
thioketones |
| C4H9 |
|
|
| C4H9 |
hyperconjugation |
| C4H9Br |
|
|
| C4H9Br |
addition reaction |
| C4H9FO |
|
|
| C4H9FO |
diastereotopic |
| C4H9N |
|
|
| C4H9N |
pre-equilibrium (prior equilibrium) |
| C4H9O |
|
|
| C4H9O |
fragmentation |
| C4H10 |
|
|
| C4H10 |
catalytic hydrogenolysis |
| C4H10Mg |
|
|
| Et2Mg |
organometallic compounds |
| C4H10N |
|
|
| C4H10N |
pre-equilibrium (prior equilibrium) |
| C4H10O |
|
|
| C4H10O |
fragmentation |
| CH3CH2OCH2CH3 |
ethers |
| CH3CH2CHOHCH3 |
prochirality |
| C4H10O |
diastereotopic |
| CH3CHOHCH2CH3 |
prochirality |
| C4H10O3 |
|
|
| HC(OCH3)3 |
ortho esters |
| C4H11N |
|
|
| (CH3)3N+–C−H2 |
ylides |
| C4H11NO |
|
|
| C4H11NO |
pre-equilibrium (prior equilibrium) |
| C4H11O3PS |
|
|
| C4H11O3PS |
betaines |
| C4H12N2 |
|
|
| C4H12N2 |
amine imides |
| C4H13NO |
|
|
| [(CH3)4N]+OH− |
quaternary ammonium compounds |
| C4O4 |
|
|
| C4O4 |
oxocarbons |
| C5 |
|
|
| C5 |
terpenes |
| C5H3BrN4 |
|
|
| C5H3BrN4 |
tele-substitution |
| C5H4 |
|
|
| C5H4 |
nonclassical structure |
| C5H4 |
electrocyclic reaction |
| C5H4N2O |
|
|
| C5H4N2O |
topomerization |
| C5H4N4 |
|
|
| C5H4N4 |
purine bases |
| C5H5N |
|
|
| C5H5N+ |
organoheteryl groups |
| C5H5N |
nucleophilic catalysis |
| C5H5NO |
|
|
| C5H5NO |
tautomerism |
| C5H5NOS |
|
|
| C5H5NOS |
penems |
| C5H5N5 |
|
|
| C5H5N5 |
tele-substitution |
| C5H5OP |
|
|
| C5H5OP |
indicated hydrogen |
| C5H5P |
|
|
| C5H5P |
indicated hydrogen |
| C5H7NOS |
|
|
| C5H7NOS |
penams |
| C5H7O2 |
|
|
| C5H7O2 |
carbanion |
| C5H8 |
|
|
| C5H8 |
di-π-methane rearrangement |
| 3 CH3CH2CH3 |
homodesmotic reaction |
| C5H8 |
sigmatropic rearrangement |
| [CH2=C(CH3)CH=CH2] |
terpenes |
| C5H8OS2 |
|
|
| CH3C(=O)SC(=S)CH2CH3 |
thioanhydrides |
| C5H8O2 |
|
|
| C5H8O2 |
de Mayo reaction |
| C5H8O3 |
|
|
| HC(=O)CH2CH2CH2C(=O)OH |
oxo carboxylic acids |
| C5H8O5 |
|
|
| HO2CCH2CHOHCH2CO2H |
prochirality |
| C5H8O7 |
|
|
| C5H8O7 |
pseudo-asymmetric carbon atom |
| C5H9Br |
|
|
| C5H9Br |
molecular rearrangement |
| C5H9N |
|
|
| C5H9N |
aza-di-π-methane rearrangement |
| C5H9NO2 |
|
|
| C5H9NO2 |
imino acids |
| C5H9O |
|
|
| C5H9O |
ambident |
| C5H10 |
|
|
| C5H10 |
envelope conformation |
| C5H10 |
ene reaction |
| C5H10O |
|
|
| C5H10O |
prochirality |
| C5H10O |
molecular rearrangement |
| C5H10O2 |
|
|
| C5H10O2 |
molecular rearrangement |
| C5H10O4 |
|
|
| C5H10O4 |
monosaccharides |
| C5H11NO2 |
|
|
| C5H11NO2 |
betaines |
| C5H12 |
|
|
| Me4C |
symbiosis |
| C5H12O4 |
|
|
| C(OCH3)4 |
ortho esters |
| C5H12O5 |
|
|
| C5H12O5 |
meso-compound |
| C5H14NO4P |
|
|
| Me3N+–CH2CH2–OP(=O)(OH)O− |
phospho |
| C5H15Ta |
|
|
| TaMe5 |
homoleptic |
| C6H4 |
|
|
| C6H4 |
aryne |
| C6H4NS2 |
|
|
| C6H4NS2 |
Herz compounds |
| C6H4O2 |
|
|
| C6H4O2 |
quinones |
| C6H4O2 |
quinhydrones |
| C6H5 |
|
|
| C6H5 |
aryl cations |
| C6H5AsCa |
|
|
| CaAsPh |
arsenides |
| C6H5I |
|
|
| C6H5I |
isotopic scrambling |
| C6H5KN2O |
|
|
| PhN=NO−K+ |
diazoates |
| C6H5NO2 |
|
|
| C6H5NO2 |
electrophile (electrophilic) |
| C6H5N2 |
|
|
| C6H5N2 |
isotopic scrambling |
| PhN+≡N |
diazonium salts |
| C6H5N3 |
|
|
| PhN3 |
azides |
| C6H5Y |
|
|
| C6H5Y |
Hammett equation (Hammett relation) |
| C6H6 |
|
|
| C6H62+ |
nonclassical structure |
| C6H6 |
Kekulé structure (for aromatic
compounds) |
| C6H6 |
electrophile (electrophilic) |
| C6H6 |
catalytic hydrogenolysis |
| C6H6 |
homodesmotic reaction |
| 3 CH2=CH–CH=CH2 |
homodesmotic reaction |
| C6H6 |
fulvenes |
| C6H6.− |
radical ion |
| C6H6.+ |
radical ion |
| C6H6NNa |
|
|
| C6H6NNa |
anilides |
| C6H6N2 |
|
|
| C6H6N2 |
quinonimines (quinone imines) |
| C6H6N2O |
|
|
| PhN=NOH |
diazoates |
| C6H6O |
|
|
| C6H6O |
valence tautomerization |
| C6H6O |
arene epoxides |
| C6H6OS |
|
|
| PhSOH |
sulfenic acids |
| C6H6O2 |
|
|
| C6H6O2 |
quinhydrones |
| C6H6O4 |
|
|
| C6H6O4 |
cycloaddition |
| C6H6O4S |
|
|
| PhS(=O)2OOH |
peroxy acids |
| C6H7 |
|
|
| C6H7+ |
arenium ions |
| C6H7N |
|
|
| C6H5NH2 |
transformation |
| C6H7N |
isotopic scrambling |
| C6H7N |
ammoniumyl radical ions |
| C6H8 |
|
|
| C6H8 |
electrocyclic reaction |
| C6H8NO2P |
|
|
| C6H8NO2P |
amides |
| C6H8N2S |
|
|
| PhS(=NH)NH2 |
sulfinamidines |
| C6H9Br |
|
|
| C6H9Br |
anti |
| C6H9NOS |
|
|
| C6H9NOS |
cephams |
| C6H9N3O2 |
|
|
| C6H9N3O2 |
pros in histidine
nomenclature |
| C6H9Sb |
|
|
| (CH2=CH)3Sb |
stibines |
| C6H10 |
|
|
| C6H10 |
degenerate rearrangement |
| C6H10 |
half-chair |
| C6H10 |
attachment |
| C6H10 |
carbenes |
| C6H10BrF |
|
|
| C6H10BrF |
anti |
| C6H10Br2NiP2 |
|
|
| Ni[(CH3)2PCH2CH2P(CH3)2]Br2 |
κ (kappa) in inorganic
nomenclature |
| C6H10O3 |
|
|
| C6H10O3 |
tautomerism |
| C6H10O4 |
|
|
| C6H10O4 |
enoses |
| C6H10O7 |
|
|
| C6H10O7 |
uronic acids |
| C6H10O7 |
ketoaldonic acids |
| C6H11BrO5 |
|
|
| C6H11BrO5 |
anomeric effect |
| C6H11NO |
|
|
| C6H11NO |
prochirality |
| C6H11NO |
lactams |
| C6H11S |
|
|
| C6H11S |
sulfonium compounds |
| C6H12 |
|
|
| C6H12 |
oxidative addition |
| C6H12 |
chair, boat, twist |
| C6H12 |
Paterno–Büchi reaction |
| C6H12 |
cyclo- |
| C6H12O2 |
|
|
| C6H12O2 |
dimerization |
| C6H12O3 |
|
|
| C6H12O3 |
acetonides |
| C6H12O5 |
|
|
| C6H12O5 |
α (alpha), β (beta) |
| C6H12O6 |
|
|
| C6H12O6 |
aldoses |
| C6H12O6 |
Haworth representation |
| C6H12O6 |
ketoses |
| C6H12O6 |
α (alpha), β (beta) |
| C6H12O7 |
|
|
| C6H12O7 |
aldonic acids |
| C6H12Si |
|
|
| C6H12Si |
di-π-silane rearrangement |
| C6H13NO5 |
|
|
| C6H13NO5 |
amino sugars |
| C6H14 |
|
|
| C6H14 |
cyclo- |
| C6H14LiN |
|
|
| C6H14LiN |
amides |
| C6H14N |
|
|
| C6H14N |
abstraction |
| C6H14O6 |
|
|
| C6H14O6 |
Haworth representation |
| C6H15B |
|
|
| Et3B |
organometallic compounds |
| C6H15N |
|
|
| C6H15N |
abstraction |
| C6N4 |
|
|
| C6N4 |
π-adduct |
| C7H4ClO2 |
|
|
| C7H4ClO2 |
isodesmic reaction |
| C7H4O3S2 |
|
|
| C7H4O3S2 |
cyclic acid anhydrides (cyclic
anhydrides) |
| C7H5ClO2 |
|
|
| C7H5ClO2 |
isodesmic reaction |
| C7H5NO |
|
|
| PhOCN |
cyanates |
| C7H5O2 |
|
|
| C7H5O2 |
isodesmic reaction |
| C7H6 |
|
|
| C7H6 |
annulenylidenes |
| C7H6FeO2S |
|
|
| [Fe(CO)3(C4H6SO)] |
η (eta or hapto) in inorganic
nomenclature |
| C7H6N |
|
|
| C7H6N |
nitrilium ions |
| C7H6O |
|
|
| C7H6O |
quinomethanes |
| C7H6O |
tropones |
| C7H6OS |
|
|
| PhC(=S=O)H |
sulfines |
| C7H6O2 |
|
|
| C7H6O2 |
isodesmic reaction |
| C7H6O2 |
tropolones |
| C7H7 |
|
|
| C7H7 |
common-ion effect (on rates) |
| C7H7 |
benzylic intermediates |
| (C7H72+) |
mass-to-charge ratio,  in mass
spectrometry |
| C7H7+ |
tropylium ions |
| C7H7 |
hyperconjugation |
| C7H7Br |
|
|
| C7H7Br |
leaving group |
| C7H7BrO |
|
|
| C7H7BrO |
cine-substitution |
| C7H7Cl |
|
|
| C7H7Cl |
common-ion effect (on rates) |
| C7H7NO |
|
|
| C7H7NO |
amides |
| C7H7NS |
|
|
| PhC(=S)NH2 |
thio |
| C7H8 |
|
|
| C7H8 |
cycloaddition |
| C7H8 |
catalytic hydrogenolysis |
| C7H8 |
hyperconjugation |
| C7H8 |
tropilidenes |
| C7H8 |
catalytic dehydrocyclization |
| C7H8NO |
|
|
| C7H8NO |
nucleophilic catalysis |
| C7H8O |
|
|
| C7H8O |
common-ion effect (on rates) |
| C7H9N |
|
|
| C7H9N |
catalytic hydrogenolysis |
| C7H9NO |
|
|
| C7H9NO |
cine-substitution |
| C7H9NOS |
|
|
| PhS(=O)NHCH3 |
sulfinamides |
| C7H9NO2S |
|
|
| PhS(=O)2NHCH3 |
sulfonamides |
| C7H10BrF |
|
|
| C7H10BrF |
endo, exo, syn,
anti |
| C7H12 |
|
|
| C7H12 |
anti |
| C7H12ClN |
|
|
| C7H12ClN |
acyl halides |
| C7H14N2 |
|
|
| C7H14N2 |
carboxamidines |
| C7H14O |
|
|
| C7H14O |
Norrish Type II photoreaction |
| C7H14O6 |
|
|
| C7H14O6 |
anomeric effect |
| C7H16 |
|
|
| C7H16 |
catalytic dehydrocyclization |
| C8H4O |
|
|
| C8H4O |
heteroarynes |
| C8H5NO |
|
|
| C8H5NO |
cyanides |
| C8H6CrO |
|
|
| [Cr(CO)4(C4H6)] |
η (eta or hapto) in inorganic
nomenclature |
| C8H6S2 |
|
|
| C8H6S2 |
isolated double bonds |
| C8H8 |
|
|
| C8H8 |
chain reaction |
| C8H8 |
non-Kekulé molecules |
| C8H8 |
chain transfer |
| C8H8 |
quinomethanes |
| C8H8 |
alternant |
| C8H8 |
polyhedranes |
| C8H8ClNO |
|
|
| C8H8ClNO |
molecular rearrangement |
| C8H8O4 |
|
|
| C8H8O4 |
polyketides |
| C8H8O4S |
|
|
| C8H8O4S |
acid anhydrides |
| C8H9 |
|
|
| (C8H9+) |
homoaromatic |
| C8H9ClO |
|
|
| PhCH(OH)CH2Cl |
halohydrins |
| C8H9N |
|
|
| PhCH=NMe |
aldimines |
| C8H9NO |
|
|
| C6H5NHCOCH3 |
transformation |
| C8H9NO |
molecular rearrangement |
| C8H9NO |
anilides |
| C8H10S |
|
|
| C8H10S |
leaving group |
| C8H11ClO |
|
|
| C8H11ClO |
α (alpha), β (beta) |
| C8H11NOS |
|
|
| (CH3)2S(=O)=NPh |
sulfoximides |
| C8H12 |
|
|
| C8H12 |
electrocyclic reaction |
| C8H12 |
propellanes |
| C8H12N |
|
|
| C8H12N |
aminium ions |
| C8H12O5 |
|
|
| C8H12O5 |
tautomerism |
| C8H14 |
|
|
| C8H14 |
planar chirality |
| C8H14O4 |
|
|
| C8H14O4 |
monosaccharides |
| C8H16 |
|
|
| C8H16 |
tub conformation |
| C8H16 |
crown conformation |
| C8H16 |
extrusion transformation |
| C8H16N2 |
|
|
| C8H16N2 |
extrusion transformation |
| C8H18 |
|
|
| C8H18 |
catalytic hydrogenolysis |
| C8H18O |
|
|
| C8H18O |
zig-zag projection |
| C8H20N |
|
|
| (CH3CH2)4N+ |
onium compounds |
| C8K |
|
|
| C8K |
intercalation reaction |
| C9H5N |
|
|
| C9H5N |
heteroarynes |
| C9H6O2 |
|
|
| C9H6O2 |
isocoumarins |
| C9H6O2 |
coumarins |
| C9H8Cl3 |
|
|
| C9H8Cl3 |
chain transfer |
| C9H8N2 |
|
|
| C9H8N2 |
dipyrrins |
| C9H10O |
|
|
| C9H10O |
molecular rearrangement |
| C9H10O2 |
|
|
| C9H10O2 |
leaving group |
| C9H10O2 |
catalytic hydrogenolysis |
| C9H12 |
|
|
| C9H12 |
π-adduct |
| C9H12S |
|
|
| (CH3)2S=CHPh |
ylides |
| (CH3)2S+–C−HPh |
ylides |
| C9H14 |
|
|
| C9H14 |
Bredt's rule |
| C9H14O4 |
|
|
| C9H14O4 |
tautomerism |
| C9H16 |
|
|
| C9H16 |
spiro compounds |
| C9H16O2 |
|
|
| C9H16O2 |
tritactic polymer |
| C9H18O |
|
|
| C9H18O |
Paterno–Büchi reaction |
| C9H19NO4 |
|
|
| C9H19NO4 |
glycosylamines |
| C10 |
|
|
| C10 |
monoterpenoids |
| C10 |
terpenes |
| C10H6 |
|
|
| C10H6 |
dehydroarenes |
| C10H8 |
|
|
| C10H8 |
fulvalenes |
| C10H8 |
alternant |
| C10H8O |
|
|
| C10H8O |
phenols |
| C10H10 |
|
|
| C10H10 |
non-Kekulé molecules |
| C10H10 |
polyquinanes (polyquinenes) |
| C10H14NO |
|
|
| C10H14NO |
amidium ions |
| C10H15NS |
|
|
| (C2H5)2S=NPh |
sulfimides |
| C10H16 |
|
|
| C10H16 |
electrocyclic reaction |
| C10H16 |
ring assembly |
| C10H18 |
|
|
| C10H18 |
cis-trans isomers |
| C10H20 |
|
|
| C10H20 |
iridoids |
| C11H6O3 |
|
|
| C11H6O3 |
furocoumarins |
| C11H12O4 |
|
|
| C11H12O4 |
acylals |
| C11H14 |
|
|
| C11H14 |
hula-twist (HT)
mechanism |
| C11H14 |
bicycle-pedal (BP)
mechanism |
| C12H8 |
|
|
| C12H8 |
ring assembly |
| C12H8Cl2 |
|
|
| C12H8Cl2 |
meso-compound |
| C12H10 |
|
|
| C12H10 |
ring assembly |
| C12H10N2 |
|
|
| PhN=NPh |
azo compounds |
| C12H10N2O |
|
|
| C12H10N2O |
azoxy compounds |
| C12H10OS |
|
|
| Ph2S=O |
sulfoxides |
| C12H10O5S2 |
|
|
| PhS(=O)2OS(=O)2Ph |
sulfonic anhydrides |
| C12H12N2S |
|
|
| Ph2S(=NH)2 |
sulfonediimines |
| C12H14 |
|
|
| C12H14 |
anti |
| C12H24O6 |
|
|
| C12H24O6 |
crown |
| C12O9 |
|
|
| C12O9 |
oxocarbons |
| C13H10O |
|
|
| Ph2C–O.− |
radical ion |
| C13H12O2 |
|
|
| C13H12O2 |
bisphenols |
| C13H13N3 |
|
|
| PhN=N–NPhMe |
diazoamino compounds |
| C13H13OP |
|
|
| (Ph)2POCH3 |
esters |
| C13H14 |
|
|
| C13H14 |
spiro compounds |
| C13H14O4 |
|
|
| C13H14O4 |
cycloaddition |
| C13H16O7 |
|
|
| C13H16O7 |
glycosides |
| C14H10 |
|
|
| C14H10 |
quinarenes |
| C14H10 |
acenes |
| C14H10O |
|
|
| C14H10O |
epoxy compounds |
| C14H10OS2 |
|
|
| C14H10OS2 |
acid anhydrides |
| C14H10O9 |
|
|
| C14H10O9 |
depsides |
| C14H12 |
|
|
| C14H12 |
cycloaddition |
| C14H12N6O3 |
|
|
| C14H12N6O3 |
folates |
| C14H24 |
|
|
| C14H24 |
propellanes |
| C15 |
|
|
| C15 |
sesquiterpenoids |
| C15 |
terpenes |
| C15H10O2 |
|
|
| C15H10O2 |
flavonoids (isoflavonoids and
neoflavonoids) |
| C15H11O |
|
|
| C15H11O |
anthocyanidins |
| C15H16N |
|
|
| (p-Me2NC6H4)2CHPh |
leuco bases |
| C16H10 |
|
|
| C16H10 |
ortho- and peri-fused (polycyclic
compounds) |
| C16H14O |
|
|
| PhC(=O)CH=C(CH3)Ph |
dypnones |
| C16H16 |
|
|
| C16H16 |
cyclophanes |
| C17H16Cl3 |
|
|
| C17H16Cl3 |
chain transfer |
| C17H21NO4 |
|
|
| C17H21NO4 |
pseudo-asymmetric carbon atom |
| C17H21N2 |
|
|
| C17H21N2 |
cyanine dyes |
| C17H28 |
|
|
| C17H28 |
steroids |
| C18H12 |
|
|
| C18H12 |
ortho-fused (polycyclic
compounds) |
| C18H14 |
|
|
| C18H14 |
quinarenes |
| C18H34O9 |
|
|
| C18H34O9 |
in-out isomerism |
| C18H36N2O6 |
|
|
| C18H36N2O6 |
cryptand |
| C19H12 |
|
|
| C19H12 |
ortho- and peri-fused (polycyclic
compounds) |
| C19H14N4 |
|
|
| C19H14N4 |
tetrapyrroles |
| C19H14O5S |
|
|
| C19H14O5S |
sulfonphthaleins |
| C19H15 |
|
|
| C19H15 |
fragmentation |
| C19H16 |
|
|
| C19H16 |
bicycle rearrangement |
| C19H17P |
|
|
| Ph3P+–C−H2 |
ylides |
| Ph3P+=CH2 |
ylides |
| C19H22N4 |
|
|
| C19H22N4 |
corrinoids (cobalamines, corphyrins, corrins,
vitamin B12 compounds) |
| C19H30 |
|
|
| C19H30 |
cyclo- |
| C19H32 |
|
|
| C19H32 |
cyclo- |
| C19H32 |
abeo- |
| C19H32 |
seco- |
| C19H32O |
|
|
| C19H32O |
α (alpha), β (beta) |
| C19H34 |
|
|
| C19H34 |
seco- |
| C20 |
|
|
| C20 |
prostaglandins |
| C20 |
leukotrienes |
| C20 |
terpenes |
| C20 |
diterpenoids |
| C20 |
icosanoids |
| C20H12O5 |
|
|
| C20H12O5 |
xanthene dyes |
| C20H14N4 |
|
|
| C20H14N4 |
porphyrins |
| C20H14O4 |
|
|
| C20H14O4 |
phthaleins |
| C20H16O2 |
|
|
| C20H16O2 |
fragmentation |
| C20H19OP |
|
|
| C20H19OP |
betaines |
| C20H20O5 |
|
|
| C20H20O5 |
lignans |
| C20H38O2 |
|
|
| C20H38O2 |
prostaglandins |
| C22H23ClN2O8 |
|
|
| C22H23ClN2O8 |
tetracyclines |
| C22H26O6 |
|
|
| C22H26O6 |
lignans |
| C23H22O6 |
|
|
| C23H22O6 |
rotenoids |
| C25 |
|
|
| C25 |
terpenes |
| C25 |
sesterterpenoids |
| C26H16 |
|
|
| C26H16 |
helicenes |
| C26H16 |
helicity |
| C27H54N2 |
|
|
| C27H54N2 |
in-out isomerism |
| C30 |
|
|
| C30 |
terpenes |
| C30 |
triterpenoids |
| C30H42O |
|
|
| C30H42O |
carotenoids |
| C38H24Cl4 |
|
|
| C38H24Cl4 |
biradical |
| C40 |
|
|
| C40 |
terpenes |
| C40 |
carotenoids |
| C40 |
tetraterpenoids |
| C40H56 |
|
|
| C40H56 |
retro |
| C40H56 |
carotenoids |
| C40H56O2 |
|
|
| C40H56O2 |
carotenoids |
| C41H29NO |
|
|
| C41H29NO |
Dimroth–Reichardt  parameter |
| Ca |
|
|
| Ca2+ |
interfering substance in
electroanalytical chemistry |
| Ca2+ |
selectivity coefficient,  in ion exchange
chromatography |
| Ca2+ |
ionic conductivity |
| CaFeO3 |
|
|
| CaFeO3 |
disproportionation |
| Cd |
|
|
| Cd |
resonance lamp |
| CdHe |
|
|
| HeCd |
ion laser |
| CdHgTe |
|
|
| HgCdTe |
photoconductive detector |
| CdS |
|
|
| CdS |
pressure-induced transition |
| CdS |
photoconductive detector |
| Cl |
|
|
| Cl |
abstraction |
| Cl− |
pH |
| Cl |
apicophilicity |
| –Cl |
characteristic group in
organic nomenclature |
| Cl− |
gas sensing electrode |
| Cl− |
nucleofuge |
| Cl |
Herz compounds |
| Cl |
chain reaction |
| Cl− |
Brønsted base |
| Cl |
substitution reaction |
| Cl. |
chain reaction |
| Cl |
excimer lamp |
| Cl− |
selectivity coefficient, in ion exchange
chromatography |
| Cl |
nucleophile (nucleophilic) |
| Cl. |
radical (free radical) |
| Cl |
common-ion effect (on rates) |
| Cl+ |
halonium ions |
| Cl |
ionization |
| Cl− |
gravimetric method |
| Cl |
photolysis |
| Cl− |
conjugate acid–base pair |
| ClCs |
|
|
| CsCl |
thermally-induced transition |
| CsCl |
structural transition |
| CsCl |
first-order phase transition |
| CsCl |
dilational (dilatational) transition |
| ClH |
|
|
| HCl |
oxoacids |
| ClH |
reaction path degeneracy |
| HCl |
Brønsted acid |
| ClH |
isotope exchange |
| ClH |
molecular rearrangement |
| HCl |
levelling effect |
| ClH |
abstraction |
| HCl |
internal filling solution of
a glass electrode |
| HCl |
conjugate acid–base pair |
| ClHO |
|
|
| HOCl |
oxoacids |
| ClHO4 |
|
|
| HClO4 |
levelling effect |
| ClH2 |
|
|
| (H2Cl+) |
onium compounds |
| ClH4N |
|
|
| NH4Cl |
structural transition |
| ClK |
|
|
| KCl |
membrane emf |
| KCl |
Donnan emf (Donnan potential) |
| ClKr |
|
|
| KrCl |
excimer lamp |
| ClLiO4 |
|
|
| LiClO4 |
special salt effect |
| ClNa |
|
|
| NaCl |
pressure-induced transition |
| NaCl |
thermally-induced transition |
| NaCl |
structural transition |
| NaCl |
first-order phase transition |
| ClXe |
|
|
| XeCl |
excimer lamp |
| XeCl |
excimer laser |
| Cl2 |
|
|
| Cl2 |
gas sensing electrode |
| Cl2 |
polarizability |
| 2Cl− |
mean activity of an electrolyte in
solution |
| Cl2 |
excimer lamp |
| Cl2F |
|
|
| (Cl2F+) |
onium compounds |
| Cl2Zn |
|
|
| ZnCl2 |
activated carbon |
| Cl4Rb2Zn |
|
|
| Rb2ZnCl4 |
commensurate–incommensurate transition |
| Co |
|
|
| Co3+ |
spin-state transition |
| CoLaO3 |
|
|
| LaCoO3 |
spin-state transition |
| Cr |
|
|
| Cr3+ |
solid state lasers |
| Cr3+ |
ruby laser |
| Cu |
|
|
| Cu |
Penning gas mixture |
| CuI |
|
|
| CuI |
chelation |
| CuMn |
|
|
| Cu–Mn |
spin-glass transition |
| CuZn |
|
|
| CuZn |
second-order transition |
| F |
|
|
| F |
apicophilicity |
| F |
negative hyper-conjugation |
| F |
hydrogen bond |
| F |
excimer lamp |
| F |
branching ratio |
| F+ |
halonium ions |
| F |
hyperconjugation |
| FH |
|
|
| HF |
molecular laser |
| HF |
superacid |
| HF |
chemical laser |
| HF |
branching ratio |
| FHO3S |
|
|
| HSO3F |
superacid |
| FH2 |
|
|
| (H2F+) |
onium compounds |
| FKr |
|
|
| KrF |
excimer laser |
| KrF |
liquid ion laser |
| F2P |
|
|
| Fap–P–Fap |
hypervalency |
| F5P |
|
|
| PF5 |
hypervalency |
| PF5 |
polytopal rearrangement |
| F5Sb |
|
|
| SbF5 |
superacid |
| F6S |
|
|
| SF6 |
air mass in atmospheric
chemistry |
| F6U |
|
|
| UF6 |
gaseous diffusion separator
in atmospheric chemistry |
| Fe |
|
|
| Fe3+ |
Verwey transition |
| Fe2+ |
Verwey transition |
| Fe |
exchange-inversion transition |
| Fe3+ |
order-disorder transition |
| Fe2+ |
Fenton reaction |
| Fe3+ |
Fenton reaction |
| 57Fe |
quadrupole splitting in
Mössbauer spectroscopy |
| Fe3+ |
equivalent entity |
| Fe2+ |
oxidized species |
| Fe3+ |
oxidized species |
| Fe |
oxidized species |
| 57Fe |
nuclear quadrupole moment
(spectroscopic) |
| Fe |
spin crossover |
| FeII |
spin crossover |
| FeIII |
salt form of an ion exchanger |
| FeII |
salt form of an ion exchanger |
| FeLiO2 |
|
|
| LiFeO2 |
order-disorder transition |
| FeMo |
|
|
| Mo–Fe |
spin-glass transition |
| FeRh |
|
|
| FeRh |
exchange-inversion transition |
| Fe2O3 |
|
|
| α-Fe2O3 |
Morin transition |
| Fe3O4 |
|
|
| Fe3+[Fe3+Fe2+]O4 |
Verwey transition |
| H |
|
|
| H |
hyperconjugation |
| H+ |
leaving group |
| H+ |
general acid–base catalysis |
| H |
carbene analogues |
| H |
selenides |
| H |
bismuthines |
| H+ |
pH |
| H |
selenoxides |
| H |
oxime O-ethers |
| H+ |
extraction (equilibrium) constant |
| H |
nucleophilic catalysis |
| H− |
hydron |
| H+ |
hydron |
| H |
hydron |
| H |
multiply labelled |
| H+ |
gas sensing electrode |
| 2H |
deuterium |
| 2H− |
deuterium |
| 2H+ |
deuterium |
| H |
tautomerism |
| H |
hydrogen |
| H |
selones |
| H+ |
electrofuge |
| H |
urethanes (urethans) |
| H |
extended Hammett equation |
| H |
ketones |
| H |
ketoximes |
| H |
Schiff bases (Schiff's bases) |
| H |
hemiketals |
| H |
sulfenyl radicals |
| H+ |
isoionic |
| H+ |
ligands |
| H+ |
catalytic coefficient |
| H |
hemiaminals |
| H |
stibines |
| H |
tellurides |
| H |
ethers |
| 1H |
chemical shift, in NMR |
| 2H |
deuteron |
| H+ |
tautomerism |
| H |
thioethers |
| H |
dual substituent-parameter equation |
| H |
azomethines |
| H |
thioketone S-oxides |
| H |
pseudo acids |
| H |
branching chain reaction |
| H |
imines |
| 1H |
aromatic |
| 3H |
electron capture detector in
gas chromatography |
| H |
alkyl groups |
| H |
esters |
| H |
sulfenylium ions |
| H |
trioxides |
| H |
electrophile (electrophilic) |
| H+ |
protonation constant |
| H |
polysulfanes |
| H |
nitrones |
| H |
selenols |
| H+ |
Rutherford backscattering (RBS) |
| H |
sulfenic acids |
| H+ |
specific acid–base catalysis |
| H |
thioketones |
| H |
diazoamino compounds |
| H |
bond energy (mean bond energy) |
| H |
sulfenamides |
| H |
bond-dissociation energy, |
| H+ |
equivalent entity |
| H |
silicones |
| H |
gas-phase acidity |
| H |
sulfenyl groups |
| H |
Hammett equation (Hammett relation) |
| H |
sulfoxides |
| H |
gas-phase basicity |
| H |
polysulfides |
| H |
hydrazides |
| H |
enols |
| H |
alkoxyamines |
| H |
ortho esters |
| H |
phosphines |
| 3H+ |
tritium |
| 3H |
tritium |
| 3H− |
tritium |
| 1H |
protium |
| 1H+ |
protium |
| H+ |
protium |
| H |
acetals |
| H |
selenenic acids |
| H+ |
Haber–Weiss reaction |
| H |
arsines |
| H |
reaction path degeneracy |
| H |
thiohemiacetals |
| H |
ketals |
| H |
fragmentation |
| H |
thioacetals |
| H |
sulfones |
| H(2S) |
isogyric reaction |
| H |
thiols |
| H |
addition reaction |
| H |
spin polarization |
| H |
hemiacetals |
| H |
Brønsted relation |
| H |
ketimines |
| H+ |
standard hydrogen electrode |
| H |
sulfides |
| H |
common-ion effect (on rates) |
| HI |
|
|
| HI |
levelling effect |
| HLi |
|
|
| HLi |
topochemical reaction |
| LiH |
oxidation state |
| HN |
|
|
| –NH |
anion exchanger |
| HN: |
carbene analogues |
| HN: |
nitrenes |
| NH |
silasesquiazanes |
| –NH– |
silazanes |
| HN |
Lewis acid |
| HN= |
imino acids |
| HNO |
|
|
| =NOH |
hydroximic acids |
| HNO2 |
|
|
| HON=O |
oxoacids |
| HONO |
smog chamber in atmospheric
chemistry |
| HNO3 |
|
|
| HNO3 |
smog chamber in atmospheric
chemistry |
| HN3 |
|
|
| –N=N–NH– |
azimines |
| HN3 |
azides |
| HO |
|
|
| OH– |
anion exchanger |
| OH− |
general acid–base catalysis |
| –OH |
vinylic groups |
| –OH |
hydrazidines |
| HO |
allylic substitution reaction |
| –OH |
characteristic group in
organic nomenclature |
| OH |
erythro structures in
a polymer |
| OH− |
isoionic |
| HO |
substitution reaction |
| OH− |
catalytic coefficient |
| –OH |
benzylic groups |
| OH |
phosphoglycerides |
| OH− |
Fenton reaction |
| OH |
phosphoramides |
| HO |
anhydro bases |
| OH |
oxo compounds |
| –OH |
cresols |
| OH− |
kinetic equivalence |
| OH− |
specific acid–base catalysis |
| HO |
pre-equilibrium (prior equilibrium) |
| –OH |
allylic groups |
| HO+ |
oxylium ions |
| OH |
anilides |
| OH− |
Brønsted base |
| –OH |
sulfenamides |
| HO |
decay rate in atmospheric
chemistry |
| –OH |
hydrazides |
| HO. |
alcohols |
| –OH |
alcohols |
| –OH |
hydroxamic acids |
| HO |
molecular rearrangement |
| HO− |
acyl species |
| HO. |
acyl species |
| HO+ |
acyl species |
| OH. |
Fenton reaction |
| OH. |
Haber–Weiss reaction |
| OH− |
Haber–Weiss reaction |
| HO |
colligation |
| OH |
branching chain reaction |
| HO |
smog chamber in atmospheric
chemistry |
| –OH |
peroxy acids |
| HO2 |
|
|
| –OOH |
peroxy acids |
| HO3S |
|
|
| –SO3H |
characteristic group in
organic nomenclature |
| –SO3H |
polyacid |
| HO4S |
|
|
| HSO4− |
Brønsted acid |
| HSO4− |
Brønsted base |
| HSi |
|
|
| Si–H |
agostic |
| SiH |
silasesquiazanes |
| H2 |
|
|
| H2 |
pH |
| H2 |
gas sensing electrode |
| H2 |
catalytic hydrogenolysis |
| H2(1Σ+g) |
isogyric reaction |
| H2 |
standard hydrogen electrode |
| H2I |
|
|
| (H2I+) |
onium compounds |
| H2KN |
|
|
| H2KN |
isotopic scrambling |
| H2N |
|
|
| NH2 |
amides |
| –NH2 |
characteristic group in
organic nomenclature |
| NH2 |
phosphoglycerides |
| H2N. |
aminyl radicals |
| (H2N:+) |
nitrenium ions |
| H2NO |
|
|
| H2N–O− |
aminoxides |
| H2N–O. |
nitroxides |
| –NHOH |
hydroxamic acids |
| H2NP |
|
|
| HP=NH |
phosphazenes |
| H2N2 |
|
|
| =NNH2 |
hydrazidines |
| H2NN: |
carbene analogues |
| –NHNH– |
hydrazo compounds |
| =NNH2 |
hydrazones |
| HN=NH |
azo compounds |
| H2N2O |
|
|
| H2NNO |
nitrosamides |
| H2N2O2 |
|
|
| O2NNH2 |
nitramines |
| H2N2S |
|
|
| HN=S=NH |
sulfur diimides |
| H2O |
|
|
| H2O |
oxenium ions |
| H2O |
common-ion effect (on rates) |
| H2O |
ionization |
| H2O |
composition of pure air in
atmospheric chemistry |
| H2O |
temperature lapse rate in
atmospheric chemistry |
| H2O |
Brønsted acid |
| H2O |
supersaturation |
| H2O |
Brønsted base |
| H2O |
oxidative coupling |
| H2O |
nucleophilic catalysis |
| H2O |
anhydro bases |
| H2O |
hydration |
| H2O |
branching chain reaction |
| H2O |
pre-equilibrium (prior equilibrium) |
| H2O |
gaseous diffusion separator
in atmospheric chemistry |
| H2O |
Haber–Weiss reaction |
| H2O |
sanitary land fill |
| H2O |
photosynthesis |
| H2O |
amphiprotic (solvent) |
| H2O2 |
|
|
| HOOH |
hydroperoxides |
| H2O2 |
Fenton reaction |
| H2O2 |
oxidation state |
| H2O2 |
Haber–Weiss reaction |
| H2O2 |
smog chamber in atmospheric
chemistry |
| H2O2S |
|
|
| HOSOH |
oxoacids |
| HS(=O)OH |
sulfinic acids |
| H2O3 |
|
|
| HOOOH |
trioxides |
| H2O3P |
|
|
| –PO3H2 |
characteristic group in
organic nomenclature |
| –P(=O)(OH)2 |
phospho |
| –P(=O)(OH)2 |
phosphono |
| –PO3H2 |
polyacid |
| H2O3S |
|
|
| HS(=O)2OH |
sulfonic acids |
| H2O4S |
|
|
| (HO)2SO2 |
oxoacids |
| H2SO4 |
reduced species |
| H2SO4 |
Brønsted acid |
| H2SO4 |
equivalent entity |
| H2SO4 |
oxidation state |
| H2SO4 |
haze in atmospheric
chemistry |
| H2SO4 |
amphoteric |
| H2S |
|
|
| H2S |
hydrocracking unit |
| H2S |
reduced species |
| SH2 |
bonding number |
| H2S |
sulfenylium ions |
| H2S |
acid-labile sulfur |
| H2S |
oxidized species |
| H2S |
sulfenyl groups |
| H2S |
sulfenyl radicals |
| H2S |
oxidation state |
| H2S |
sulfanes |
| H2S |
air pollutant |
| H2S2 |
|
|
| HS2H |
polysulfanes |
| H2Se |
|
|
| H2Se |
selenides |
| H2Si |
|
|
| H2Si: |
silylene |
| H2Si |
silylene |
| H2Te |
|
|
| H2Te |
tellurides |
| H3N |
|
|
| H3N.+ |
ammoniumyl radical ions |
| H3N |
aminiumyl radical ions |
| NH3 |
Brønsted acid |
| NH3 |
Rydberg state |
| H3N |
tele-substitution |
| H3NO |
|
|
| H2N–OH |
hydroxylamines |
| H3NO2 |
|
|
| H3NO2 |
azinic acids |
| H3NO3 |
|
|
| H3NO3 |
azonic acids |
| H3NO3S |
|
|
| H2NS(=O)2OH |
sulfamic acids |
| H3NS |
|
|
| H2S=NH |
sulfimides |
| H3N2 |
|
|
| –NHNH2 |
hydrazidines |
| H2NN.H |
verdazyl radicals |
| H3N3 |
|
|
| NH2N=NH |
triazenes |
| H3O |
|
|
| H3O+ |
oxonium ions |
| H3O |
ionization |
| H3O+ |
Brønsted acid |
| (H3O+) |
onium compounds |
| H3OP |
|
|
| H2POH |
phosphinous acids |
| H3O2P |
|
|
| HP(OH)2 |
phosphonous acids |
| H2P(=O)OH |
phosphinic acids |
| H3O3P |
|
|
| P(OH)3 |
oxoacids |
| HP(=O)(OH)2 |
phosphonic acids |
| H3O4P |
|
|
| H3PO4 |
electrolytic hygrometer |
| H3P |
|
|
| PH3 |
phosphines |
| PH3 |
phosphanes |
| H3S |
|
|
| (H3S+) |
onium compounds |
| H3Sb |
|
|
| SbH3 |
stibanes |
| SbH3 |
stibines |
| H3Se |
|
|
| (H3Se+) |
onium compounds |
| H3Si |
|
|
| H3Si– |
silyl groups |
| H3Si. |
silyl radicals |
| H3Sn |
|
|
| .SnH3 |
radical (free radical) |
| H3Te |
|
|
| (H3Te+) |
onium compounds |
| H4N |
|
|
| (H4N+) |
onium compounds |
| H4NP |
|
|
| H3P=NH |
phosphazenes |
| H4NY |
|
|
| (NH4+)Y− |
quaternary ammonium compounds |
| H4N2 |
|
|
| H2NNH2 |
hydrazines |
| H4OSi |
|
|
| H3SiOH |
silanols |
| H4P |
|
|
| (H4P+) |
onium compounds |
| H4Sb |
|
|
| (H4Sb+) |
onium compounds |
| H5NO4S |
|
|
| NH4HSO4 |
haze in atmospheric
chemistry |
| H5N3 |
|
|
| NH2NHNH2 |
triazanes |
| H5P |
|
|
| PH5 |
phosphoranes |
| H6S |
|
|
| SH6 |
bonding number |
| H10N2Si3 |
|
|
| H3SiNHSiH2NHSiH3 |
silazanes |
| He |
|
|
| 3He |
helion |
| He |
atomic laser |
| He+ |
Rutherford backscattering (RBS) |
| 4He |
α-particle (alpha-particle) |
| Hg |
|
|
| Hg |
resonance lamp |
| I |
|
|
| I− |
identity reaction |
| 129I |
nuclear quadrupole moment
(spectroscopic) |
| 131I |
radioiodination |
| 125I |
radioiodination |
| 123I |
radioiodination |
| I |
excimer lamp |
| I+ |
halonium ions |
| IK |
|
|
| IK |
isotopic scrambling |
| IO2 |
|
|
| IO2 |
characteristic group in
organic nomenclature |
| IXe |
|
|
| XeI |
excimer lamp |
| I2 |
|
|
| I2 |
dopant |
| I2 |
excimer lamp |
| K |
|
|
| K |
syntectic reaction |
| KMnO4 |
|
|
| KMnO4 |
equivalent entity |
| KZn |
|
|
| K-Zn |
syntectic reaction |
| KZn13 |
|
|
| KZn13 |
syntectic reaction |
| Kr |
|
|
| Kr |
excimer lamp |
| Kr |
resonance lamp |
| Kr |
liquid ion laser |
| Kr2 |
|
|
| Kr2 |
excimer lamp |
| La |
|
|
| La3+ |
ionic conductivity |
| Li |
|
|
| Li+ |
order-disorder transition |
| LiMn2O4 |
|
|
| Li[Mn2]O4 |
topochemical reaction |
| Mg |
|
|
| Mg |
solute-volatilization interference in flame spectroscopy |
| Mg2+ |
selectivity coefficient, in ion exchange
chromatography |
| Mg2O4Si |
|
|
| Mg2SiO4 |
reconstructive transition |
| MnO2 |
|
|
| MnO2 |
magnetic transition |
| Mn3O4 |
|
|
| Mn3O4 |
Jahn–Teller transition |
| N |
|
|
| N |
imides |
| N |
hydrogen bond in theoretical
organic chemistry |
| N |
dipolar compounds |
| N |
hydrogen bond |
| N |
umpolung |
| ≡N |
nitriles |
| N |
amidium ions |
| N |
alkoxyamines |
| N |
spin crossover |
| NO |
|
|
| NO |
reference procedure in
analysis of trace air constituents |
| –NO |
nitroso compounds |
| NO |
emission in atmospheric
chemistry |
| NO |
composition of pure air in
atmospheric chemistry |
| –N=O |
isonitroso compounds |
| NO+ |
isoelectronic |
| NO |
primary pollutant in
atmospheric chemistry |
| NO2 |
|
|
| NO2 |
reference procedure in
analysis of trace air constituents |
| NO2+ |
electrofuge |
| –NO2 |
nitro compounds |
| NO2 |
π-electron acceptor/donor group |
| NO2 |
composition of pure air in
atmospheric chemistry |
| NO2 |
permeation tube |
| NO2 |
air pollutant |
| NO2 |
electrophile (electrophilic) |
| NO3 |
|
|
| NO3− |
mean activity of an electrolyte in
solution |
| NO3 |
oxidant in atmospheric
chemistry |
| NO3Rb |
|
|
| RbNO3 |
thermally-induced transition |
| N2 |
|
|
| N2 |
reference procedure in
analysis of trace air constituents |
| N2 |
cage |
| =N+=N− |
diazo compounds |
| N2 |
molecular laser |
| N2 |
photochemical nitrogen extrusion |
| N2 |
isoelectronic |
| N2 |
cryogenic sampling |
| N2 |
geminate recombination |
| N2O |
|
|
| N2O |
local fraction atomized, , in flame emission and
absorption spectrometry |
| N3 |
|
|
| N3 |
azides |
| –N=N+=N− |
azides |
| N3− |
pseudohalogens |
| –N3 |
quinone diazides |
| N3Na |
|
|
| NaN3 |
azides |
| Na |
|
|
| Na+ |
mean activity of an electrolyte in
solution |
| Na+ |
interfering substance in
electroanalytical chemistry |
| Na |
resonance lamp |
| Na+ |
ionic conductivity |
| Nb3Sn |
|
|
| Nb3Sn |
superconducting transition |
| Ne |
|
|
| Ne |
helium–neon laser |
| Ne |
atomic laser |
| Ne |
excimer lamp |
| Ni |
|
|
| 63Ni |
electron capture detector in
gas chromatography |
| NiS |
|
|
| NiS |
dilational (dilatational) transition |
| O |
|
|
| O |
imides |
| =O |
hydrazidines |
| –O– |
silathianes |
| =O |
characteristic group in
organic nomenclature |
| =O |
imidines |
| –O– |
imidines |
| O2− |
ligands |
| =O |
hydroximic acids |
| O |
dipolar compounds |
| O |
hydrogen bond |
| O |
tautomerism |
| –O– |
diamidides |
| =O |
diamidides |
| O |
hydrogen bond in theoretical
organic chemistry |
| –O– |
silazanes |
| =O |
oxo compounds |
| O |
umpolung |
| O |
ylides |
| O |
amidium ions |
| =O |
hydrazones |
| =O |
imidic acids |
| O |
branching chain reaction |
| OP |
|
|
| P–O |
ligases (synthetases) |
| O2 |
|
|
| O2 |
biochemical (biological) oxygen demand ( ) |
| (=O)2 |
sulfonediimines |
| O2 |
singlet molecular oxygen (singlet molecular
dioxygen) |
| O2 |
spin-statistical factor (in
diffusion-controlled reactions) |
| O2 |
flow rate in flame emission
and absorption spectrometry |
| O2 |
mean free path,  |
| O22− |
peroxides |
| O2 |
catalase |
| O2 |
chemical oxygen demand ( ) |
| O2 |
chemical bond |
| O2 |
Schenck-sensitization mechanism |
| O2− |
Haber–Weiss reaction |
| O2 |
Haber–Weiss reaction |
| O2 |
photosynthesis |
| O2 |
configuration (electronic) |
| O2S |
|
|
| SO2 |
oxidized species |
| SO2 |
extraction (equilibrium) constant |
| SO2 |
emission in atmospheric
chemistry |
| O2S |
cheletropic reaction |
| SO2 |
primary pollutant in
atmospheric chemistry |
| SO2 |
oxidation state |
| SO2 |
permeation tube |
| SO2 |
composition of pure air in
atmospheric chemistry |
| SO2 |
sink in atmospheric
chemistry |
| SO2 |
air pollutant |
| O2Si |
|
|
| SiO2 |
polymorphic transition |
| SiO2 |
displacive transition |
| O2Ti |
|
|
| TiO2 |
irreversible transition |
| O2V |
|
|
| VO2 |
metal–insulator transition |
| O2Zr |
|
|
| ZrO2 |
martensitic transition |
| O3 |
|
|
| O3 |
reference procedure in
analysis of trace air constituents |
| O3 |
secondary pollution (emissions) |
| O3 |
decay rate in atmospheric
chemistry |
| O3 |
greenhouse effect in
atmospheric chemistry |
| O3S |
|
|
| SO3 |
oxidized species |
| SO3 |
oxidation state |
| –(SO3−) |
membrane sites in an
ion-selective electrode |
| O3Ti2 |
|
|
| Ti2O3 |
semiconductor-metal transition |
| O4 |
|
|
| O4 |
chemical bond |
| O4S |
|
|
| SO42− |
Brønsted base |
| SO42− |
selectivity coefficient, in ion exchange
chromatography |
| O4S3 |
|
|
| 3SO42− |
mean activity of an electrolyte in
solution |
| O4Si |
|
|
| SiO4 |
displacive transition |
| O5P2 |
|
|
| P2O5 |
electrolytic hygrometer |
| O5V2 |
|
|
| V2O5 |
gel |
| P |
|
|
| P |
imides |
| P |
umpolung |
| PbS |
|
|
| PbS |
photoconductive detector |
| Pt |
|
|
| Pt |
pH |
| Pt |
gas sensing electrode |
| S |
|
|
| S |
polytypic transition |
| S |
imides |
| S |
tautomerism |
| S |
mustards |
| –S– |
silathianes |
| S |
hydrogen bond in theoretical
organic chemistry |
| S |
umpolung |
| S |
ylides |
| S |
poison in
catalysis |
| S |
triple point |
| SZn |
|
|
| ZnS |
polytypic transition |
| S2 |
|
|
| S2 |
polysulfanes |
| S2Ti |
|
|
| TiS2 |
intercalation reaction |
| S8 |
|
|
| S8 |
oxidation state |
| Se |
|
|
| Se |
imides |
| Se |
umpolung |
| Se |
ylides |
| Si |
|
|
| Si |
di-π-silane rearrangement |
| Si |
silanols |
| Si |
photoconductive detector |
| SiV3 |
|
|
| V3Si |
superconducting transition |
| Sn |
|
|
| 119Sn |
nuclear quadrupole moment
(spectroscopic) |
| 119Sn |
quadrupole splitting in
Mössbauer spectroscopy |
| Te |
|
|
| Te |
imides |
| Te |
ylides |
| Ti |
|
|
| Ti3+ |
solid state lasers |
| U |
|
|
| 239U |
resonance neutrons |
| Xe |
|
|
| Xe |
excimer lamp |
| Xe |
resonance lamp |
| Xe2 |
|
|
| Xe2 |
excimer lamp |
| Zn |
|
|
| Zn |
polytypic transition |
| Zn |
syntectic reaction |
| Zn |
resonance lamp |
