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

Reactions of copper(II) chloride with triphenylphosphine. Isolation and identification of some oxidation-reduction products

D. Makáňová, G. Ondrejovič, and J. Gažo

Lehrstuhl für anorganische Chemie der Slowakischen Technischen Hochschule, 880 37 Bratislava

Abstract:  By the reaction of copper(II) chloride with triphenylphosphine present in molar ratios 1 1 a n d 1 : 4 in acetone t h e complexes CuCl(TPP), CuCl(TPP)₂ , CuCl(TPP)₃ as well as the complexes CuCl₂(TPPO)₂, CuCl₂(TPPO)₄ • 2H₂0, and Cu₄OCl₆ (TPPO)₄ are formed. These complexes were isolated from reaction mixtures. The complex CuCl₂(TPPO)₄ • 2 H₂0 decomposes during thermal dehydration at 100°C into CuCl₂(TPPO)₂ and TPPO. Adsorption chromatography on aluminium oxide was used for the separation of the complexes with TPPO which were formed in solution containing copper(II) chloride and triphenylphosphine in molar ratio 1 : 1 . I n this paper the causes of the reduction of copper(II) compounds by triphenylphosphine are elucidated and the possible mechanisms of oxidation-reduction processes are discussed with respect to the character of isolated products and t h e present knowledge on oxidation-reduction processes involving copper(II) complexes.

Full paper in Portable Document Format: 271a4.pdf (in German)

Chemical Papers 27 (1) 4–13 (1973)