ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Preparation and properties of chlorobromocopper(II) complexes of composition (CH₃NH₃)₂CuCl_xBr_4-x

Z. Biela, T. Obert, M. Melník, and J. Gažo

Department of Inorganic Chemistry, Slovak Technical University, 880 37 Bratislava

Abstract: Compounds (CH₃NH₃)₂CuCl_xBr_4-x  (x = 0 — 4) were obtained by crystal­ lization from ethanol solutions, by bromine oxidation of a chlorocopper(I) complex and by solid state interaction. Newly prepared substances were characterized by X-ray powder patterns, electronic crystal, nujol, and e.p.r. spectra. Chlorobromocopper(II) complexes were found to be isostructural with homogeneous halo complexes. Square-planar structure of the complex anion is preserved also in the heterogeneous coordination sphere. Regardless of the mode of preparation, no evidence has been obtained for the formation of isomers or modifications of (CH₃NH₃)₂CuCl_xBr_4-x.

Full paper in Portable Document Format: 291a56.pdf

Chemical Papers 29 (1) 56–60 (1975)