Alkali-metal hexa-alkoxides of niobium and of tantalum

Mehrotra, R. C. ; Agrawal, M. M. ; Kapoor, P. N. (1968) Alkali-metal hexa-alkoxides of niobium and of tantalum Journal of the Chemical Society A . pp. 2673-2676. ISSN 0959-9428

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Reactions of niobium and tantalum penta-alkoxides with corresponding alkali-metal alkoxides have been studied and a number of double alkoxides of the type MM'(OR)6 have been isolated (M = Li, Na, or K; M'= Nb or Ta; and R = Me, Et, Pri, or But). Tantalum derivatives can be purified by sublimation in a few cases whereas the niobium ones decompose to penta-alkoxides. Conductivities have been measured and molecular weights determined.

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