DIALKYLAMIDO DERIVATIVES OF [(ETA-5-C5ME5)TICL3], [((ETA-5-C5ME5)TICL2)2(MU-O)] AND [((ETA-5-C5ME5)TICL)3(MU-O)3] - X-RAY CRYSTAL-STRUCTURE OF [(ETA-5-C5ME5)TI(NME2)3]

Reactions of [(eta5-C5Me5)TiCl3] with dialkyl and diarylamido-lithium complexes in 1:1, 1:2 or 1:3 molar ratios afford the mono(pentamethylcyclopentadienyl)titanium(IV) dialkylamido-complexes [(eta5-C5Me5)TiCl3-n(NR2)n] (n = 1; R = Me or SiMe3) (n = 2, R = Me or Ph) (n = 3, R = Me or Et). Similar reactions of [{(eta5-C5Me5)TiCl2)2(mu-O)] and [{(eta5-C5Me5)TiCl}3(mu-O)3] gave the corresponding complexes [{(eta5k-C5Me5)TiCl2-n(NR2)n}2(mu-O)] (n = 1; R = Me or Ph) (n = 2, R = Me) and [(eta5-C5Me5)3Ti3Cl3-n(NMe2)n(mu-O)3] (n = 1 or 3). The crystal structure of [(eta-5-C5Me5)Ti(NMe2)3] has been established by X-ray crystallography and is shown to be monomeric with the typical three-legged piano-stool structure.