Complexation and disproportionation of group 4 metal (alkoxy) halides with phosphine oxides

Abstract

Metal alkoxy halides of group 4 interact with Lewis bases, causing disproportionation and complexation.

Synthesis of zirconium(iv) and hafnium(iv) isopropoxide, sec-butoxide and tert-butoxide

“…In our laboratory, we have ample experience in producing oxide nanocrystals and oxo clusters from metal alkoxide precursors. 1,3,18,19,24–30 While zirconium and hafnium isopropoxide and tert -butoxide compounds are commercially available, we experienced a high supplier-to-supplier and batch-to-batch variability in terms of color of the isopropoxide (from slightly yellow to brown instead of white) or purity of the tert -butoxide ( e.g. , turbid instead of transparent).…”