Za. Saveleva et al., FIRST EXAMPLE OF AN ISOLATED SQUARE-BIPYRAMIDAL HEXABROMOCUPRATE(II) ANION IN THE CRYSTAL-STRUCTURE OF THE AMINOGUANIDINIUM SALT (CH8N4)(2)[CUBR6], Polyhedron, 15(20), 1996, pp. 3581-3584
An isolated hexabromocuprate(II) anion has been characterized as an el
ongated square bipyramid by X-ray structure determination of the amino
guanidinium salt (CH8N4)(2) [CuBr6]. We have carried out X-ray structu
re analysis. The magnetic susceptibility has been measured and the sta
bility conditions for the compound studied. The structure consists of
virtually planar aminoguanidinium(2+) cations and bipyramidal [CuBr6](
4-) anions forming a framework through N-H...Br hydrogen bonds of 3.14
3-1.582 Angstrom. Copyright (C) 1996 Elsevier Science Ltd