Bis(η-cyclopentadienyl)-molybdenum and -tungsten imido complexes: X-ray structures of [Mo(η-C5H5)2(NBut)] and [Mo(η-C5H4Me)2(NBut)Me]I
- 1 January 1992
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 18,p. 1361-1365
- https://doi.org/10.1039/c39920001361
Abstract
The pseudo-trigonal bis(η-cyclopentadienyl)-molybdenum and -tungsten imido complexes [M(η-C5H4R)(η-C5H4R′)(NBut)](M = Mo or W; R = R′= Me or H, R′= Pri R = H) are reported together with the ring-slipped indenyl analogue [Mo(η-C5H4Pri)(η3-C9H7)(NBut)] and the metal-methylated salts [Mo(η-C5H4Me)2(NBut)Me]X (X = I or BF4); the X-ray structures of [Mo(η-C5H5)2(NBut)] and [Mo(η-C5H4Me)2(NBut)Me]BF4 suggest that the NBut ligand acts as a strong π-donor to the metal centre; photoelectron studies identify an unusually low ionization-energy band largely localized on the ligands.Keywords
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