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First example of an isolated square-bipyramidal hexabromocuprate(ii) anion in the crystal structure of the aminoguanidinium salt (CH8N4)2[CuBr6]

Authors
Journal
Polyhedron
0277-5387
Publisher
Elsevier
Publication Date
Volume
15
Issue
20
Identifiers
DOI: 10.1016/0277-5387(96)00076-9

Abstract

Abstract An isolated hexabromocuprate(II) anion has been characterized as an elongated square bipyramid by X-ray structure determination of the aminoguanidinium salt (CH 8N 4) 2 [CuBr 6]. We have carried out X-ray structure analysis. The magnetic susceptibility has been measured and the stability conditions for the compound studied. The structure consists of virtually planar aminoguanidinium(2 + ) cations and bipyramidal [CuBr 6] 4- anions forming a framework through N-HBr hydrogen bonds of 3.143-3.582 .

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