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Structural Tungsten-Imido Chemistry: The Gas-Phase Structure of W(NBut)(2)(NHBut)(2) and the Solid-State Structures of Novel Heterobimetallic W/N/M (M = Rh, Pd, Zn) Species


Reference:

Choujaa, H., Cosham, S. D., Johnson, A. L., Kafka, G. R., Mahon, M. F., Masters, S. L., Molloy, K. C., Rankin, D. W. H., Robertson, H. E. and Wann, D. A., 2009. Structural Tungsten-Imido Chemistry: The Gas-Phase Structure of W(NBut)(2)(NHBut)(2) and the Solid-State Structures of Novel Heterobimetallic W/N/M (M = Rh, Pd, Zn) Species. Inorganic Chemistry, 48 (5), pp. 2289-2299.

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http://dx.doi.org/10.1021/ic8021134

Abstract

The gas-phase (electron diffraction) and solid-state (X-ray) structures of W(NBut)(2)(NHBut)(2) (1) have been determined. In the gas phase, 1 adopts both C-1, and C-2 conformations in a 69:31 ratio. The solid-state structure is disordered over two equal sites, both showing approximate C-2 conformation as in the gas phase; the imido and amido centers are, however, clearly distinguished. Compound 1 has been used to synthesize novel heterobimetallic derivatives. W(NBUt)(4)[Rh(COD)](2) (3) and W(NBut)(4)[Pd(eta(3)-C3H5)](2) (4) via the dilithiated intermediate Li-2[W(NBut)(4)] (2). In both cases, the [W(NBut)(4)] moiety bridges the two organometallic fragments. Reaction of 1 with Me2Zn has produced [Me((BuN)-Bu-t)W(mu-NBut)(2)ZnMe(NH2But)] (5). The structures of 3, 4, and 5 have been determined. Thermal decomposition of 4 under an autogenerated pressure at 700 degrees C has formed the hitherto uncharacterized bimetallic alloy WPd2.

Details

Item Type Articles
CreatorsChoujaa, H., Cosham, S. D., Johnson, A. L., Kafka, G. R., Mahon, M. F., Masters, S. L., Molloy, K. C., Rankin, D. W. H., Robertson, H. E. and Wann, D. A.
DOI10.1021/ic8021134
DepartmentsFaculty of Science > Chemistry
RefereedYes
StatusPublished
ID Code13517

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