Preparation and properties of novel heterobimetallic glycolate derivativesof titanium and zirconium

Reaction in 1:3 molar ratio of titanium and zirconium isopropoxides with gl ycols (2,5-dimethyl hexane- 2,5-diol/2,3-dimethyl butane-2,3-diol) in benze ne under refluxing conditions afford soluble aggregates of the composition [M(O-G-O)(O-G-OH)(2)] (M=Ti, Zr; G = (CH3)(2)CCH2CH2C(CH3)(2) or (CH3)(2)CC (CH3)(2)) These on treatment with isopropoxides of other metals (eg; Al, Ti , Nb and Ta) yield heterobimetallic isopropoxide-glycolate derivatives whic h have been characterized by elemental analyses, spectroscopic (IR, NMR (H- 1, C-13, Al-27)) data and molecular weight measurements.