Tridentate coordination modes of functionalized titanocene thiolates. Crystal structure of [(eta(5)-C5H4SiMe3)Ti(mu-eta(5):kappa-P-C5H4PPh2)(mu-SPh)(2)W(CO)(3)]

Mixed monosubstituted cyclopentadienyl Ti(IV) derivatives [(eta(5)-C5H4R)(e ta(5)-C5H4SiMe3)Ti(SPh)(2)] (R = PPh2, Ph2P=O, Ph2P=S) react with carbonylm etal fragments of group 6 to generate heterodinuclear compounds [(eta(5)-C5 H4SiMe3)Ti(mu-eta(5):kappa-P-C5H4Ph2)(mu-SPh)(2) M(CO)(3)],[(eta(5)-C5H4SiM e3)(SPh)Ti(mu-eta(5):kappa-P-C5H4Ph2)(mu-SPh)M-(CO)(4)], [eta(5)-C5H4P(E)Ph -2) (eta(5)-C5H4SiMe3)Ti(mu-SPh)(2)M(CO)(4)] (M = Mo, W; E = O, S) and [(et a(5)-C5H4SiMe3)Ti(mu-eta(5):kappa-E-C5H4P(E)Ph-2)(mu-SPh)(2)M(CO)(3)] (M = Mo, W; E = S or M = Mo, E = O). All complexes have been characterized by sp ectroscopic data. The crystal structure of [(eta(5)-C5H4SiMe3)Ti(mu-eta(5): kappa-P-C5H4Ph2)(mu-SPh)2W-(CO)(3)(-)] has been determined by X-ray diffrac tion techniques, and it was confirmed that the titanium precursor acts as a tridentate metalloligand. The complex crystallizes in the orthorhombic sys tem in space group Pna2(1); a = 23.081(2) Angstrom, b = 14.3046(9) Angstrom , c = 11.6892(8) Angstrom; Z= 4.