Molecules that are fully conjugated, but each of whose Kekulé structures contains
at least two atoms that are not π-bonded. Examples of non-Kekule
hydrocarbons are trimethylenemethane (2-methylidenepropane-1,3-diyl)
1,
m-benzodiquinomethane (benzene-1,2-diyldimethyl)
2, and 1,2,4,5 - tetramethylenebenzene (benzene-1,2,4,5-tetrayltetramethyl)
3.
Source:
InChI=1/C4H6/c1-4(2)3/h1-3H2
InChI=1/C8H8/c1-7-4-3-5-8(2)6-7/h3-6H,1-2H2
InChI=1/C10H10/c1-7-5-9(3)10(4)6-8(7)2/h5-6H,1-4H2
MOWBWPSGCTXGKR-UHFFFAOYAS
NJLQFTPGVAALOB-UHFFFAOYAM
AJEIVINAKJUVBX-UHFFFAOYAW
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
