Titanium(IV) complexes with amidinate and/or hydrazido ligands

The complex [Ti2Cl4(NNMe2)2(py)3] (1) has been prepared via the reaction of TiCl4 with LiN(H)NMe2, followed by treatment with pyridine. Preparation of the complex [TiCl(PhC{N(SiMe3)2}2)2(MeNNMe2)] (2) was carried out by treatment of TiCl4 with Li[PhC{N(SiMe3)2}]tmeda, followed by reaction with LiN(Me)NMe2. The structures of 1 and 2 were determined by single crystal X-ray diffraction. The single crystal X-ray structure of Li[PhC{N(SiMe3)2}]tmeda (3) has also been determined.

Two new titanium(IV) complexes have been synthesized and characterized by X-ray diffraction. The first complex, [Ti2Cl4(NNMe2)2(py)3], is dimeric and features two η2-dimethyl-hydrazido bridges. The second complex, [TiCl(PhC{N(SiMe3)2}2)2−(MeNNMe2)], is mononuclear and the coordination sphere comprises two η2-bonded amidinate ligands, one chloride and one η2-bonded trimethylhydrazide.Figure optionsDownload as PowerPoint slide