SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF A LINEAR COPPER(I) TETRATHIOMOLYBDATE COMPLEX CONTAINING THE ME(2)DTC(-) LIGAND, (ET4N)(2)[MOS4(CUME(2)DTC)(2)]

A trinuclear linear MoS4Cu2 complex has been obtained from a reaction system including (NH4)(2)MoS4, CuCl and ligands. The complex (Et4N)(2) [MoS4(CuMe(2)dtc)(2)]. 2CH(3)CN crystallizes in the triclinic, space g roup P-1 with crystal data: a = 8.834(3), b = 10.621(3), c = 25.119(8) Angstrom, alpha = 89.91 (3), beta = 100.28(3), gamma = 114.55(3)degre es, V = 2102(1) Angstrom(3), Z = 2, R = 0.036 and R-w = 0.052 for 6091 reflections with 1>3 sigma(I). The anion [MoS4(CuMe(2)dtc)(2)](2-) in volves an essentially tetrahedral MoS, moiety and two Cu(I) atoms havi ng distorted tetrahedral geometry. Proton and Mo-95 NMR, IR and electr onic spectroscopic data have been used to interpret the structural fea tures. A cyclic voltammogram of the complex has also been studied and compared with that of an MoS4Cu3 complex (Et4N)(2)[MoS4(CuEt(2)dtc)(3) ].