IUPAC Gold Book - Alphabetical index

A B C DEF G H I J K L M N O P Q R S T U V W X Y Z all (6414 items)

η (eta or hapto) in inorganic nomenclature
E, Z
E/Z photoisomerization
$E 2$ mass spectrum
early-downhill surface
EB curing
eclipsed (eclipsing)
eclipsing conformation
eclipsing strain
ectohormone
eddy
eddy dispersion (diffusion)
educt
effective cadmium cut-off energy in nuclear analytical chemistry
effective charge
effective chimney height (stack height)
effective half life
effective molarity (effective concentration)
effective theoretical plate number of a chromatographic column
effective thermal cross-section
effective thickness of diffusion layer
effectively infinite thickness in flame spectroscopy
effectiveness
effector
efficiency of a counter
efficiency, $η$ of a step^quantity
efficiency of atomization in analytical flame spectroscopy
efficiency of nebulization, $ɛ n$ in flame spectrometry^quantity
efficiency spectrum
efflorescence
effluent
effluent in chromatography
eicosanoids
eighteen-electron rule
einstein^unit
Einstein equation
El-Sayed rules
elastic collision
elastic scattering in reaction dynamics
elastic scattering in spectrochemistry
elastically active network chain
elastomer
electric capacitance
electric charge, $Q$ ^quantity
electric coherence length, $ξ E$ in thin films^quantity
electric conductance, $G$ ^quantity
electric conductivity
electric current, $I$ ^quantity
electric current density, $j$ ^quantity
electric dipole moment, $p$ ^quantity
electric displacement, $D$ ^quantity
electric field (strength), $E$ ^quantity
electric mobility, $u$ , $μ$ ^quantity
electric polarizability, $α$ ^quantity
electric potential, $V$ ^quantity
electric potential difference, $Δ V$ of a galvanic cell
electric resistance, $R$ ^quantity
electric resistivity
electric sector in mass spectrometry
electrical arc
electrical double-layer
electrical hygrometer
electrically conducting polymer
electrified interphase
electro-dialysis
electro-endosmosis
electro-osmosis
electro-osmotic hold-up time, $t eo$ in capillary electromigration^quantity
electro-osmotic mobility, $u$ or $μ eo$ in capillary electromigration^quantity
electro-osmotic pressure
electro-osmotic velocity
electro-osmotic volume flow
electroactive substance
electrocapillarity
electrocapillary equation
electrochemical detector in gas chromatography
electrochemical method of detection in analysis
electrochemical potential
electrochemiluminescence
electrochromic effect
electrocyclic reaction
electrode current density, $j$ ^quantity
electrode memory
electrode potential, $E$ ^quantity
electrode process
electrode reaction
electrode reaction rate constants
electrodecantation (or electrophoresis convection)
electrodeposition
electrofuge
electrogenerated chemiluminescence (ECL)
electrographite
electrokinetic potential, $ζ$ ^quantity
electroluminescence
electroluminescent polymer
electrolytic hygrometer
electromeric effect
electromigration
electromotive force, $E$ ^quantity
electron
electron acceptor
electron affinity, $E ea$
electron attachment
electron back-transfer
electron beam curing
electron capture
electron capture detector in gas chromatography
electron charge
electron configuration
electron correlation
electron density
electron density function
electron detachment
electron donor
electron energy in mass spectrometry
electron exchange excitation transfer
electron impact ionization in mass spectrometry
electron ionization in mass spectrometry
electron jump
electron kinetic energy
electron microscopy
electron paramagnetic resonance (EPR)
electron probe microanalysis (EPMA)
electron probe X-ray microanalysis (EPXMA)
electron rest mass^constant
electron spectroscopy for chemical analysis (ESCA)
electron stopping power in X-ray emission spectroscopy
electron transfer
electron transfer photosensitization
electron work function, $Φ$
electron-counting rules
electron-deficient bond
electron-deficient compounds
electron-donor-acceptor complex
electron-exchange polymer
electron-pair acceptor
electron-pair donor
electron-transfer catalysis
electronation
electronegativity
electroneutrality principle
electronic chemical potential
electronic configuration
electronic effect of substituents: symbols and signs
electronic energy migration (or hopping)
electronic stability
electronic state
electronic transition moment
electronically excited state
electronvolt^unit
electrophile (electrophilic)
electrophilicity
electrophoresis
electrophoresis convection
electrophoretic mobility, $μ$ ^quantity
electrophoretic velocity, $ν ep$
electrophotography
electrosmosis
electrostatic filter
electrostatic precipitator
electrostriction
electrothermal atomizer in spectrochemical analysis
electroviscous effects
element
element effect
element of chirality
elementary charge^constant
elementary entity
elementary particle in nuclear chemistry
elementary reaction
elimination
eluate
eluent
elute
elution
elution band in chromatography
elution chromatography
elution curve
elutriation
emanation thermal analysis
embryo
emission
emission anisotropy^quantity
emission control equipment in atmospheric chemistry
emission flux in atmospheric chemistry
emission in atmospheric chemistry
emission spectrum
emittance, $ɛ$ ^quantity
empirical formula
emulsifier
emulsion
enamines
enantioconvergence
enantioenriched
enantiomer
enantiomer excess (enantiomeric excess)
enantiomeric groups
enantiomeric purity
enantiomeric ratio
enantiomeric units in a polymer
enantiomerically enriched (enantioenriched)
enantiomerically pure (enantiopure)
enantiomerism
enantiomerization
enantiomorph
enantiomorphous structures in polymers
enantiopure
enantioselectivity
enantiotopic
enantiotropic mesophase
enantiotropic transition
encapsulation in catalysis
encounter
encounter complex
encounter control
encounter pair
encounter-controlled rate
end-group
end-point
end-to-end distance in polymers
end-to-end vector in polymers
endergonic (or endoergic) reaction
endo, exo, syn, anti
endocytosis
endoenzymes
endothermic reaction
ene reaction
energized species
energy, $E$ ^quantity
energy dispersion in emission spectrometry
energy dispersive detector
energy dispersive X-ray fluorescence analysis
energy flux density
energy gradient
energy hypersurface (synonymous with potential energy surface, PES)
energy migration
energy of a radiation
energy of activation
energy of activation of an electrode reaction
energy pooling
energy profile
energy resolution in radiochemistry
energy storage efficiency, $η$ ^quantity
energy threshold in radiochemistry
energy transfer in photochemistry
energy transfer plot in photochemistry
energy yield of luminescence
enforced concerted mechanism
enhanced phosphorescence analysis in luminescence spectroscopy
enhancement reaction in analytical chemistry
enhancer
enolates
enols
enophile
enoses
enrichment, isotopic
enrichment factor, $S$ in liquid-liquid distribution^quantity
ent
entanglement network
entatic state
entering group
enthalpimetric analysis
enthalpimetric flow injection analysis
enthalpimetric titration
enthalpimetry
enthalpogram
enthalpy, $H$ ^quantity
enthalpy of activation, $Δ ‡ H °$ ^quantity
enthalpy of immersion
enthalpy of wetting
entitic
entitic quantity
entrainment in atmospheric chemistry
entrainment in photochemistry
entrance channel
entropy, $S$ ^quantity
entropy of activation, $Δ ‡ S °$ ^quantity
entropy unit^unit
envelope conformation
environmental (or ambient) monitoring
environmental stress cracking
enzyme activator
enzyme activity
enzyme induction in general chemistry
enzyme induction in medicinal chemistry
enzyme inhibitor
enzyme repression
enzyme substrate electrode
enzyme thermistor
enzymes
enzymic decomposition
epi-phase
epicadmium neutrons
epigenetic
epihalohydrins
epimerization
epimers
episulfonium ions
epithermal neutrons
epitope
epoxides
epoxy compounds
equalization of electronegativity, principle of
equatorial
equilibration
equilibrium constant
equilibrium control
equilibrium dialysate
equilibrium distance in a molecule
equilibrium film
equilibrium geometry
equilibrium isotope effect
equilibrium reaction
equilibrium sedimentation
equilibrium solution
equivalence point
equivalence postulate in polymer chemistry
equivalent chain in polymers
equivalent diameter
equivalent entity
erg^unit
error of measurement
erythro, threo
erythro structures in a polymer
ESCA
escape depth (for surface analysis techniques)
Esin and Markov coefficient
esters
$E T$ -value
ethers
euatmotic reaction
eupeptide bond
eutectic reaction
evaluation function
evaporation
even-electron ion
evolved gas analysis (EGA)
evolved gas detection (EGD)
Ewens–Bassett number
exa^{SI unit prefix}
excess acidity
excess mass (at a solid/liquid interface)
excess Rayleigh ratio
excess volume (at a solid/liquid interface)
exchange current of an electrode reaction
exchange extraction
exchange integral
exchange labelling
exchange repulsion
exchange-inversion transition
excimer
excimer lamp
excimer laser
excimer-luminescence in luminescence quenching
excipient in toxicology
exciplex
exciplex-luminescence in luminescence quenching
excitation
excitation energy
excitation energy in in situ microanalysis
excitation level in X-ray spectroscopy
excitation spectrum
excitation transfer
excitation-emission spectrum
excited state
exciton
excluded volume of a macromolecule in polymers
excluded volume of a segment in polymers
exclusion chromatography
exergonic (exoergic) reaction
exfoliated graphite
exfoliation
exit channel
exitance
exo
exoenzymes
exon
exothermic reaction
expansion factor in polymers
expectation value
expected value
experimental perturbational calculation
explosivity limits (explosion limits)
exponential decay
exposure in medicinal chemistry
exposure in nuclear chemistry
exposure in photochemistry
expression in biotechnology
extended Hammett equation
extended Hückel MO method (EHMO)
extended X-ray absorption fine structure (EXAFS)
extended-chain crystal in polymers
extender
extensive quantity
extent of an interface (surface)
extent of reaction, $ξ$ ^quantity
external compensation
external heavy atom effect
external ion return
external ion-pair return
external photoelectric effect
external return
external standard in chromatography
external surface
exterplex
extinction
extinction coefficient
extra-column volume in chromatography
extract (noun)
extract (verb)
extractability in solvent extraction
extractant
extracting agent
extraction
extraction coefficient
extraction (equilibrium) constant
extraction factor, $D m$ ^quantity
extraction fractionation of polymers
extraction in process liquid-liquid distribution
extraction isotherm
extraction process in catalysis
extrapolated range in radiochemistry
extremophiles
extrusion transformation