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The structures of hexaorgano-substituted triatomics R13M1XM2R23and related species

Authors
Journal
Journal of Organometallic Chemistry
0022-328X
Publisher
Elsevier
Publication Date
Volume
356
Issue
2
Identifiers
DOI: 10.1016/0022-328x(88)83084-5

Abstract

Abstract Experimental molecular structure data, supported by calculations at the MNDO and EHMO levels of theory, are used to test and refine a structural model for compounds having hexaorgano-substituted molecules of general type (R 1 3M 1XM 2R 2 3) x± . When X represents one of the first row elements carbon nitrogen, or oxygen, linearity of the triatomic skeleton MXM′ occurs when R 1 3M 1 and/or R 2 3M 2 are electron donors: the electron donor capacity of a range of substituents R is assessed. A simple extension of this model to the oxo-bridged antimony(V) compounds of type YSbR 3OSbR 3Y predicts that a linear SbOSb skeleton will be favoured in compounds where the terminal ligand Y is tightly bound, with a short SbY distance.

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