Synthesis and Crystal Structure of the Copper(I) Chloride Complex with 4,5(4-Pyridylethylene)dithio-1,3-dithiol-2-thione and Triphenylphosphine

The synthesis of a heteroligand complex of CuCl with triphenylphosphine and 5-pyridine-4-yl-5,6-dihydro-1,3]dithiolo4,5-b]1,4]dithiine-2-thione (L) of composition { CuCl(PPh₃)(L)](CH₃ CN)}₂ (I) is described. The crystals of complex I are triclinic: space group , a = 8.928(2) Å, b = 13.872(3) Å, c = 14.470(3) Å, α = 72.89(3)°, β = 88.41(3)°, γ = 77.02(3)°, and Z = 2. The Cu(1) atom has a quasi-tetrahedral environment including the phosphorus atom of the triphenylphosphine molecule, nitrogen atom of the pyridyl radical of molecule L, and two bridging chloride ions. The fact that noncoordinated sulfur atoms are present can be used for the further interaction of complex I with soft Lewis acids.__________Translated from Koordinatsionnaya Khimiya, Vol. 31, No. 6, 2005, pp. 462–465.Original Russian Text Copyright © 2005 by Koshevaya, Starodub.