Reaction of dimethylzinc with tantalum(V) chloride and some co-ordination compounds of methyltantalum(V) chloride, dimethyltantalum(V) chloride and methylniobium(V) chloride
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 9,p. 961-965
- https://doi.org/10.1039/dt9730000961
Abstract
It has been shown that the reaction between dimethylzincand tantalum(V) chloride involves equilibria in which zinc chloride takes part. MeTaCl4 and Me2TaCl3 were present in the reaction mixtures and it was possible to prepare and characterise a series of their complexes with a variety of monodentate and bidentate ligands. Some further complexes of MeNbCl4 have been prepared. The stoicheiometry of the complexes fall into the categories MeNbCl4,L, MeTaCl4,L, Me2TaCl3,L, 2MeNbCl4,L, 2MeTaCl4,L, and 2Me2TaCl3,L, apart from 4MeTaCl4,3diox. Proposed structures based on i.r. and n.m.r. spectra involve six-co-ordinated metal atoms in most instances, although seven-co-ordination seems probable with complexes formed by some bidentate ligands.Keywords
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