A decagallane(6) cluster Ga10[Si(CMe3)3]6 with an unprecedented structure

Gerald Linti; Annekathrin Seifert

doi:10.1039/B802959H

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A decagallane(6) cluster Ga₁₀[Si(CMe₃)₃]₆ with an unprecedented structure†

Gerald Linti*^a and Annekathrin Seifert^b

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* Corresponding authors

^a University of Heidelberg, Institute of Inorganic Chemistry, Im Neuenheimer Feld 270, Heidelberg, Germany
E-mail: Gerald.linti@aci.uni-heidelberg.de
Fax: +49-6221-546617
Tel: +49-6221-548468

^b Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, Heidelberg, Germany

Abstract

The decagallane(6) Ga₁₀R′₆ [R′ = Si(CMe₃)₃] adopts a quite unusual structure, which might be described as being derived from a pentagonal bipyramidal core, which is threefold capped. An alternative description is that of a conjuncto-cluster. The structure of the anionic cluster [Ga₁₀R′₆]⁻ as well as that of Ga₁₀R″₆ [R″ = Si(SiMe₃)₃] are described as being built of fused octahedra. Thus, this family of decagallanes is unique in showing structural isomers in the cluster core, giving hints to the pathways of formation of these clusters, too. The novel cluster compound is characterized by X-ray crystallography. Isomeric decagallanes(6) and structural changes on reduction are studied by DFT methods.

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Article information

DOI: https://doi.org/10.1039/B802959H
Article type: Paper
Submitted: 20 Feb 2008
Accepted: 18 Apr 2008
First published: 02 Jun 2008

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Dalton Trans., 2008, 3688-3693

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A decagallane(6) cluster Ga₁₀[Si(CMe₃)₃]₆ with an unprecedented structure

G. Linti and A. Seifert, Dalton Trans., 2008, 3688 DOI: 10.1039/B802959H

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Dalton Transactions