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Note | Regular issue | Vol 45, No. 12, 1997, pp.2443-2448
Published online, 1st January, 1970
DOI: 10.3987/COM-97-7950
Correlation of 13C- and 15N-NMR Chemical Shifts of Ylidic Carbon and Nitrogen with Calculated Partial Charges in Pyridinium Dicyanomethylides

Kiyoshi Matsumoto,* Hideki Katsura, Takane Uchida, Kinuyo Aoyama, and Takahisa Machiguchi

*Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan


Good correlations were found between the 13C- and 15N-NMR chemical shifts of ylidic carbon and nitrogen and their partial charges, obtained by different semiempirical molecular orbital (MO) methods, of some-4-substituted pyridinium dicyanomethylides.