Structural relationships in silatrane molecules

Document Type

Article

Publication Date

1-1-1990

Abstract

An updated compendium of silatrane structural data is presented. The relationships between nonplanarity at silicon (δSi) and d(N-Si), the length of the dative bond, and nonplanarity at nitrogen ΔN and d(N-Si) are examined. Excluding a platinum-substituted derivative: the ΔSi relationship is strong and predicts the limiting length of a strong N → Si bond, while the ΔN relationship is weak. A good relationship between ΣσI 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 π-donor exocyclic substituents, implicating resonance, and for benzo- and tribenzosilatranes, where steric effects dominate. © 1989 VCH Publishers, Inc.

Identifier

34249957932 (Scopus)

Publication Title

Structural Chemistry

External Full Text Location

https://doi.org/10.1007/BF00675787

e-ISSN

15729001

ISSN

10400400

First Page

79

Last Page

85

Issue

1

Volume

1

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