Acta Cryst. (2006). E62, m2992-m2994  [ doi:10.1107/S1600536806040232 ]

(1-Cyclopentano-4-ethyl-3-thiosemicarbazone)iodobis(triphenylphosphino)copper(I) acetonitrile disolvate

R. Venkatraman, L. Sitole, M. R. Wilson and F. R. Fronczek

Abstract: Reaction of cyclopentanone N⁴-ethylthiosemicarbazone with copper (I) iodide in the presence of triphenyl phosphine as a coligand resulted in the formation of the title compound, which crystallized as the acetonitrile solvate, C₄₄H₄₅CuIN₃P₂S·2CH₃CN or [CuI(C₈H₁₅N₃S)(C₁₈H₁₅P)₂]·2C₂H₃N. The monomeric form of the complex has a slightly distorted tetrahedral Cu coordinated by the S atom of the thiosemicarbazone ligand, with a Cu-S distance 2.3516 (7) Å. The Cu-P distances are 2.2876 (7) and 2.2959 (7) Å, and the Cu-I distance is 2.6547 (4) Å. One of the NH groups of the thiosemicarbazone forms an intramolecular hydrogen bond with the I atom, while the other NH group forms a hydrogen bond to a solvent molecule.

Online 25 October 2006

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