Preferred Label : non-Kekulé molecules;
IUPAC definition : 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) b 1 /b , i m /i -benzodiquinomethane
(benzene-1,2-diyldimethyl) b 2 /b , and 1,2,4,5 - tetramethylenebenzene (benzene-1,2,4,5-tetrayltetramethyl)
b 3 /b .;
Origin ID : NT07085;
See also
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) b 1 /b , i m /i -benzodiquinomethane
(benzene-1,2-diyldimethyl) b 2 /b , and 1,2,4,5 - tetramethylenebenzene (benzene-1,2,4,5-tetrayltetramethyl)
b 3 /b .
