Mono-η-cyclopentadienylniobium chemistry: ternary phosphine, carbonyl, 3,4-dimethylhexa-2,4-diene, halogeno-, and hydrido-derivatives
- 1 January 1981
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 1,p. 85-90
- https://doi.org/10.1039/dt9810000085
Abstract
The new compounds [Nb(η-C5H5)(dmpe)(CO)2], [Nb(η-C5H5)(dmpe)(CO)X2], X = Cl, Br, or I, [Nb(η-C5H5)(dmpe)2], [Nb(η-C5H5)(dmpe)(CO)2H][PF6], [{Nb(η-C5H5)(dmpe)H (µ-H)}2], [Nb(η-C5H5)(dmpe)H(µ-H2BH2)], and [Nb(η-C5H5)(dmpe) Cl][PF6][dmpe = 1,2-bis(dimethylphosphino)ethane] are described. Sodium amalgam reduction of [Nb(η-C5H5)(dmpe)(CO)Cl2] in the presence of but-2-yne followed by addition of hydrogen chloride gives [Nb(η-C5H5)(C4H2Me4)] and a further reduction gives [{Nb(η-C5H5)(η-C4H2Me4)(µ-Cl)}2]. The compound [Ta(η-C5H5)(dmpe)(CO)2] is also described.Keywords
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