R 30 Reactions of azinium cations. 7. 13C NMR spectra and electron structure of neutral σ-adducts of 1,4-diazinium cations and methylate anion [Electronic resource] / O. N. Chupakhin, V. N. Charushin, I. V. Kazantseva, M. G. Ponizovskii, E. O. Sidorov, P. A. Torgashev, A. V. Belik // Chemistry of Heterocyclic Compounds. - 1987. - Vol. 23, № 10. - С. 1112-1117. - Bibliogr. : p. 1116-1117 (23 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): NMR SPECTRA -- σ-ADDUCTS -- PYRAZINIUM Аннотация: The 13C NMR spectra have been recorded of a number of σ-adducts formed by pyrazinium, quinoxalinium, and pteridinium cations with methylate anion. The experimental data were compared with CNDO/2 calculations of adduct electron structure. \\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1987, v.23, N 10, p. 1112.pdf |