ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 24, Number 2
JKCSEZ 24(2)
April 20, 1980 

Composite π-structure analysis has been proposed for predicting relative isomer stabilities based on nonbonded effects: all the possible crowded π-structures are identified for each isomer, and the systems are represented by abbreviated notation of (nπ/m) : then using simple rules and additivity of the nonbonded effects, the order of stability can be determined. A number of examples are given in support of this analytical procedure.