Structural Relationships in Silatrane Molecules

被引：43

作者：

Greenberg, Arthur ^{[1
]}

Wu, Guanli ^{[1
]}

机构：

[1] New Jersey Inst Technol, Div Chem, Newark, NJ 07102 USA

来源：

STRUCTURAL CHEMISTRY | 1990年 / 1卷 / 01期

关键词：

D O I：

10.1007/BF00675787

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An updated compendium of silatrane structural data is presented. The relationships between nonplanarity at silicon (Delta Si) and d(N-Si), the length of the dative bond, and nonplanarity at nitrogen Delta N and d(N-Si) are examined. Excluding a platinum-substituted derivative: the Delta Si relationship is strong and predicts the limiting length of a strong N -> Si bond, while the Delta N relationship is weak. A good relationship between Sigma sigma(1) for the four (non-N) exo- and endocyclic substituents attached to Si holds for silatranes, methyl, keto, and diketo derivatives as well as for 2-carbasilatranes. The relationship fails for strong pi-donor exocyclic substituents, implicating resonance, and for benzo-and tribenzosilatranes, where steric effects dominate.

引用

页码：79 / 85

页数：7

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