A tungsten-183 NMR study of cis and tran
A tungsten-183 NMR study of cis and trans isomers of [W(CO)4(PPh3)(PR3)](PR3 = phosphine, phosphite)
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Laurence Carlton; Avril Emdin; Andreas Lemmerer; Manuel A. Fernandes
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Article
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2008
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John Wiley and Sons
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English
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2 ) 3 (trans isomer only). The 183 W chemical shift (obtained by indirect detection using 31 P) is found to be related to the PR 3 ligand parameters Ξ½ and ΞΈ (Tolman electronic factor and cone angle, respectively) for the cis isomers and to Ξ½ (but only poorly to ΞΈ ) for the trans isomers. The 183 W-3