V. B. Kobychev, N. M. Vitkovskaya, I. Zaytseva
Jun 20, 2002
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0
Influential Citations
8
Citations
Journal
International Journal of Quantum Chemistry
Abstract
Quantum chemical analysis (MP2/6-31+G*) of the pyrrole anions addition to carbon disulfide and the substitution effects therein shows that pyrrole-2 (5)-carbodithioates are thermodynamically the most stable compounds, while 1-isomer obtained from the unsubstituted pyrrole is likely a kinetic product. Steric hindrances destabilize N-adducts when a methyl substituent appears in a 2(5) position and the 2,5-dimethyl-1-pyrrolecarbodithioate anion turns out to be even less stable than the 2,5-dimethyl-3-pyrrolecarbodithioate anion. By contrast, pyrrole-1-carboxylates are calculated to be the most stable adducts of CO2 with pyrrole anions. © 2002 Wiley Periodicals, Inc. Int J Quantum Chem, 2002