Heteroligand binuclear complexes of CuCl with triphenylphosphine and 5-pyridine-2-yl-5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiine-2-thione (L1) of the compositions [CuCl(PPh3)(L1)]2 (I) and [CuCiL1]2 (II) are synthesized and studied by X-ray diffraction method. Crystals I are monoclinic; space group P21/n, a=8.9520(18) Å, b=18.926(4) Å, c=16.841(3) Å, β=94.96(3)°, Z=2. The Cu(I) atom has a quasi-tetrahedral surrounding involving the tetraphenylphosphine P atom, the pyridyl N atom of the molecule L1, and two bridging Cl atoms. Crystals II are monoclinic; space group P21/c, a=9.3520(19) Å, b=8.1490(16) Å, c=18.660(4) A, β = 104.43(3)°, Z = 2. Both L1 ligands in complex II act as bridges. The Cu(I) atom also has a quasi-tetrahedral surrounding formed by the Cl atoms, the pyridyl N atoms and thiol S atom of one L1 ligand, and the thione S atom of the second L1 ligand. Similar binuclear complexes with the bridging function of the L1 ligand were also detected in a solution of II by the ESI method.
Russian Journal of Coordination Chemistry – Springer Journals
Published: Mar 4, 2006
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