Synthesis and Characterization of Pseudohalides of Bis-Methylcyclopentadienyl Titanium(IV)

Department of Chemistry, University of Delhi, Delhi-110 007 (India)

Manuscript received 24 September 1979, accepted 30 November 1979

The pseudohalide complexes of the (ᶯ-CH₂C₅H₄)₂TiX₂ type (where X=N₂, NCS, NCO and NCSe) have been prepared in aqueous medium (pH~2) as well as in non-aqueous medium. These complexes have been characterized by elemental analyses, IR and NMR spectroscopy. These complexes are monomeric in benzene solution and non-electrolytes in nitrobenzene solution. On the basis of infrared spectroscopy, it has been shown that NCS, NCO and NCSe are N-bonded to the titanium atom. Thus these are true isothiocyanato, isocyanato and isoselenocyanato derivatives. The proton chemical shifts of these complexes have also been reported.