SYNTHESES AND STRUCTURE OF A MOLYBDENUM CYSTEINATO COMPLEX WITH SULFUR BRIDGES, MO2O2S2(CYS)(2)]CENTER-DOT-4H(2)O-CENTER-DOT-CH3OH

A new method for preparing a molybdenum cysteinato complex with sulphu r bridges is described. The complex was obtained from the system MoS42 -/(HSCH2CH(NH2)COOH . HCl)/KOH with MeOH and water as solvents under d initrogen atmosphere at ambient temperature. The complex crystallizes in the monoclinic system, space group P2(1) with unit cell parameters a = 7.0040(14) Angstrom, b = 15.955(3) Angstrom, c = 10.072(2) Angstro m, beta = 91.38 degrees; V = 1125.2(4) Angstrom(3); Z = 2; Dc = 1.941 g cm(-3); u =(.) 18.9 cm(-1). The final R = 0.0365 for 2219 observed r eflections with I > 2 sigma (I) and 277 parameters. The coordination p olyhedron of molybdenum is distorted octahedral, and a terdentate cyst eine ligand coordinates via N, S and O to the molybdenum atom.