Organometallic compounds 2. Mechanisms of electrophilic substitution of metal alkyls
作者:M.H. Abraham、J.A. Hill
DOI:10.1016/s0022-328x(00)90821-0
日期:1967.1
The relative rates of electrophilicsubstitution of a number of series of metal alkysl of type RMXn(where X may = R), in which the alkyl group R varies along the series, have been interpreted in terms of the following mechanisms of substitution: (a) mechanism SE2, which results in a steric sequence of relative rate constants (R = Me > Et > Pr >iso-Pr >tert-Bu), (b) a newly-defined mechanisms SEC, which
已经根据以下取代机理解释了RMX n类型(其中X可能= R)的多个系列金属烷基的亲电取代的相对速率,其中烷基R沿系列变化a)机制S E 2,这会产生相对速率常数的空间序列(R = Me> Et> Pr> iso-Pr> tert-Bu),(b)一种新定义的机制S E C,其结果是相对速率常数的极性序列(R = Me
Studies on organotin compounds using the del re method
作者:R. Gupta、B. Majee
DOI:10.1016/s0022-328x(00)86992-2
日期:1972.7
Del re calculations have been extended to correlate and interpret the NMR data in the organotincompounds. The methyl proton chemical shifts have been correlated with the partial charge on the methyl hydrogen atom. Variations in 13CH and tin-proton coupling constants have been correlated with the calculated Coulomb integral values, and the relationship has been interpreted in terms of the change in
Del re计算已扩展到可以关联和解释有机锡化合物中的NMR数据。甲基质子化学位移已与甲基氢原子上的部分电荷相关。在变型13 CH和锡-质子偶合常数已被相关与计算出的库仑积分值,和所述关系已经在变化的形式进行了解释小号的个字符数相应的原子等价使用杂交参数连同轨道计算的理论量。