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

Preparation and properties of bis(di-isopropylammonium) and bis(di-isobutylammonium) tetrahalocuprates(II)

Z. Biela and V. Siroklin

Department of Inorganic Chemistry, Slovak Technical University, CS-81237 Bratislava

Abstract: Tetrahalocuprates(II) [(iso-C₃H₇)₂NH₂]₂CuCl₄ and [(iso-C₄H₉)₂NH₂]₂•CuCl_xBr_4-x (x = 0—4) were prepared and characterized by electronic spectra in nujol suspension, DTA and diffraction powder patterns. Three forms of  [(iso-C₄H₉)₂NH₂]₂CuCl₄ were prepared — yellow, red, and orange. Based on the data of the d—d spectra, a distorted tetrahedral structure is proposed for all complex anions. Distortion of the tetrahedron is significant­ly lower for x = 0 and 1 than for other prepared compounds. The orange form of  [(iso-C₄H₉)₂NH₂]₂CuCl₄  differs from the red and yellow form both in the crystal and molecular structure.

Full paper in Portable Document Format: 421a29.pdf

Chemical Papers 42 (1) 29–38 (1988)