Nature of the Complexes of Benzoins with Group (IV) Halides

Department of Chemistry, Himachal Pradesh University, Simla-171001

Manuscript received 30 September 1973; revised 16 April 1974; accepted 24 April 1974

Benzoin (LH) forms compounds of composition MX₃L with tetrachlorides and tetrabromides of tin and titanium and tetrachlorides of zirconium and silicon; compounds of composition SnI₄LH in the case of tan tetraiodide while 2,2'-dichlorobenzoin and 2,2'-dinitrobenzoin form compounds of composition MX₄LH at room temperature. On refluxing compontids of composition MX₂L₂ are obtained in the case of pure benzoic and of composition MX₃L in the case of substituted ben­zoins. From conductance, molecular weight determination and i.r. spectral studidies, their struc­tures have been elucidated.