NMR spectra of silatranes and M ← N (M = C, Si, Ge, Sn, Pb) bond lengths in atranes:: Substituent effects

被引：25
|
作者：
Egorochkin, Alexey N. [1 ]
Voronkov, Mikhail G. [2 ]
Kuznetsova, Olga V. [1 ]
Novikova, Olga V. [1 ]
机构：
[1] Russian Acad Sci, GA Razuvaev Inst Organomet Chem, Nizhnii Novgorod 603950, Russia
[2] Russian Acad Sci, AE Favorsky Inst Chem, Siberian Branch, Irkutsk 664033, Russia
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2008年 / 693卷 / 02期
关键词：
silatranes; NMR spectra; substituent effects; atranes; polarizability effect; M <- N bond lengths;
D O I：
10.1016/j.jorganchem.2007.09.020
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The literature data on X substituent influence on the H-1, Si-29 and N-15 NMR chemical shifts (delta) and coupling constants (J) of Si-substituted silatranes XSi(OCH2CH2)(3)N as well as M-N bond lengths (d) in atranes XM(OCH2CH2)(3)N (M = C, Si, Ge, Sn, Pb) have been analyzed. It was established for the first time that the delta, J and d values depend not only on the inductive and resonance effects but also on the polarizability of X substituents. The polarizability contribution ranges from 8% to 25%. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：181 / 188
页数：8
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