Interactions between C-H and N-H bonds and d(8) square planar metal complexes: Hydrogen bonded or agostic?

被引：247
作者：
Yao, WB
Eisenstein, O
Crabtree, RH
机构：
[1] Department of Chemistry, Yale University, New Haven
来源：
INORGANICA CHIMICA ACTA | 1997年 / 254卷 / 01期
关键词：
hydrogen bonds; agostic complexes; square planar complexes;
D O I：
10.1016/S0020-1693(97)84386-1
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The structural characteristics of C-H...M and N-H...M groups in square planar d(8)-ML(4) metal complexes are examined and compared with those for C-H...M groups in unambiguously agostic d(6)-ML(5) systems. The N-H...M(d(8)) systems have the linear geometry typical of hydrogen bonds, not the bent geometry typical of agostic species. As proposed by Brammer, the N-H...M(d(8)) systems are best regarded as hydrogen bonds, but the C-H...M(d(8)) systems are intermediate in geometry between the hydrogen bonded N-H...M systems and the true agostic C-H...M of the d(6) cases and are neither typical of hydrogen bonds nor typical agostic species.
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页码：105 / 111
页数：7
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