Abstract
The synthesis, structure, and dynamic behavior of [W(CPhCHCMe2)Br2(CO)2L], 2, are reported. A structural comparison with [W(CPhCHCHMe)Br2(CO)2L], 1, is made. The introduction of an additional methyl substituent at the vinyl group in 2 causes a significant lengthening of the metal-vinyl bond. Simple electronic considerations suggest that the weakness of the metal-vinyl interaction may be explained by the absence of π-backbonding. The presence of an additional methyl substituent in the vinylcarbene ligand also affects the reactivity of complex 2.
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Reference
A. Mayr, M. F. Asaro, and T. J. Glines J. Am. Chem. Soc. 109 (1987) 2215.
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© 1989 Kluwer Academic Publishers
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Mayr, A., Asaro, M.F., Van Engen, D. (1989). Structure and Reactivity of the Tungsten Vinylcarbene Complexes [W(=CPh-CH=CRMe)Br2(CO)2L] (R = H, Me; L = 4-Pico-Line). Is the Vinyl Group Acting as a Pure σ-Donor Ligand?. In: Schubert, U. (eds) Advances in Metal Carbene Chemistry. NATO ASI Series, vol 269. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2317-1_21
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DOI: https://doi.org/10.1007/978-94-009-2317-1_21
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7541-1
Online ISBN: 978-94-009-2317-1
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