作者:Manfred Schlosser、Ruth Lehmann、Titus Jenny
DOI:10.1016/0022-328x(90)85407-p
日期:1990.6
A new attempt has been made to identify the factors responsible for the abnormally small one-bond C, H coupling constants observed for allyl, pentadienyl and heptatrienylmetal compounds. In-plane deformations (widening of the central CCC angle) should have only a small, if not negligable effect. The out-of-plane bending of hydrogen atoms appears to contribute significantly, as probably also does accumulation
已经进行了新的尝试来鉴定引起对于烯丙基,戊二烯基和庚三烯基金属化合物异常小的单键C,H偶合常数的因素。面内变形(扩大CCC中心角)的影响应该很小,即使可以忽略不计。氢原子的平面外弯曲似乎起了重要作用,共轭结构中电子密度的积累或极化也可能如此。