Multinuclear magnetic resonance study (11B, 13C, 14N, 15N, 29Si, 31P, 119Sn, 207Pb NMR) of some N-pyrrolyl derivatives
作者:Bernd Wrackmeyer
DOI:10.1016/0022-328x(85)80427-7
日期:1985.12
A multinuclear magnetic resonance study (11B, 13C, 14N, 15N, 29Si, 31P, 119Sn, 207Pb NMR) of some N-pyrrolyl derivatives, E(NC4H4)n (E = (CH3)2B, (C2H5)2B, C2H5B, (CH2S)2B, C2H5B(NC5H5), n = 1, 2, 3; E = (CH3)3Si; (CH3)3Sn, (CH3)2Sn, n = 1, 2; E = (CH3)3Pb) has been carried out. Changes in the chemical shifts and coupling constants are discussed in terms of the influence of the various substituents
阿多核磁共振研究(11 B,13 C,14 N,15 N,29的Si,31 P,119的Sn,207铅NMR)的一些Ñ吡咯基衍生物,E(NC 4 H ^ 4)Ñ(E =( CH 3)2 B,(C 2 H 5)2 B,C 2 H 5 B,(CH 2 S)2 B,C 2 H 5 B(NC 5 H 5),n = 1、2、3;E =(CH 3)3 Si; (CH 3)3 Sn,(CH 3)2 Sn,n= 1、2;进行了E =(CH 3)3 Pb)。根据各种取代基对吡咯体系电子结构的影响,讨论了化学位移和偶合常数的变化。结果表明,δ(13 C)和δ(15 N)数据尤其充当介观和/或感应取代基效应的指标。通过与类似苯衍生物的δ(13 C)数据进行比较,可以证明这一点。