Die Kristallstruktur von Ga3Cl7/ Crystal Structure of Ga3Cl7

Author:

Frank Walter1,Hönle Wolfgang1,Simon Arndt1

Affiliation:

1. Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-7000 Stuttgart 80

Abstract

Abstract Trigallium heptachloride, G a3Cl7, has been prepared from GaCl3 and Ga in sealed glass ampoules. Ga3Cl7 crystallizes in the space group Pna21 (No. 33) with a = 1181.8(1) pm; b = 889.7(1) pm; c = 1057.5(1) pm; Z = 4. The compound is isotypic with KGa2Cl7 -. The Ga2Cl7 - anion has nearly C2 symmetry (gauche conformation) with d̄ (Ga -Clbridg) = 230.3 pm, d̄ (Ga -Clterm) = 214.3 pm and and ∢ Ga -Cl -Ga = 109.0°. The Ga+ ion is coordinated by ten Cl atoms (4 + 6) with d = 346.2 pm. The coordination of Ga+ and the conformation of Ga2Cl7 - are discussed in detail together with related compounds.

Publisher

Walter de Gruyter GmbH

Subject

General Chemistry

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