- 作者: Tahsin J. Chowa,c, Kuo-Pin Chub, Shou-Shun Liuc and Ching-Yang Liub
- 中文摘要: Electronic interactions in two nonconjugated tri-p systems are analyzed in terms of 13C NMR chemical shifts. Comparisons of chemical shift values (Dd) among di-methylenes, di-ketones and methylene-ketones support the presence of electron delocalization among the three p moieties.
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