Z. Slanina et al., AM1 COMPUTED THERMAL EFFECTS WITHIN THE 9 ISOLATED-PENTAGON-RULE ISOMERS OF C-82, Journal of molecular structure. Theochem, 339, 1995, pp. 89-93
The complete set of nine isolated-pentagon-rule isomers of C-82 is des
cribed by the AM1 quantum-chemical method and treated for effects of t
emperature. In an agreement with NMR observations, a sub-set of C-2 C-
82 isomers always constitutes more than 50% of the equilibrium isomeri
c mixture.