Determining the number of resonance structures in concealed non-Kekuléan benzenoid hydrocarbons.
The number of resonance structures (SC) for previously published concealed non-Kekuléan benzenoid hydrocarbons is determined. Using a simple computer program, analytical expressions for determining SC for various classes of non-Kekuléan (free-radical) benzenoid hydrocarbons are derived, and some properties of concealed non-Kekuléan benzenoid hydrocarbons are studied.
Dias
J R
JR
Department of Chemistry, University of Missouri, Kansas City 64110-2499, USA. diasj@umkc.edu
Cash
G C
GC