Synthesis and structure of a series of tungsten(II) and tungsten(VI) diynyl and diyndiyl complexes

RL Roberts, H Puschmann, JAK Howard, JH Yamamoto, AJ Carty, PJ Low

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Oxidation of the diynyl and diyndiyl complexes [W(C=CC=CH)(CO)(3)Cp*] (1) and [{W(CO)(3)Cp*}2(mu-C=CC=C)] (2) affords the corresponding dioxo compounds [W(C=CC=CH)(O)(2)Cp*] (4) and [{W(O)(2)Cp*}(2)(mu-C=CC=C)] (6) via oxo- peroxo intermediates. The molecular structures are consistent with a degree of mixing between the carbon orbitals of the C-4(H) fragment and the d(4), but not the d(0), metal centres. A simple synthesis of the useful reagent WCl(CO)(3)Cp* is also described.

Original languageEnglish
Pages (from-to)1099-1105
Number of pages7
JournalDalton Transactions
Issue number6
Publication statusPublished - 2003

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