Crystal structure of a (μ-bis(carbene))dimetal complex of tungsten

Robin D. Rogers, David W. Macomber, Mong Liang

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The (μ-bis(carbene))ditungsten complex, (CO)5W{(C(OCH2Ph)C(CH2C2H3)(Me)CH2CH2C(OCH2Ph)}W(CO)5 (1) is only the fifth such complex to be crystallographically characterized. The steric demands of one side of the bis(carbene) ligand gives rise to small, but statistically significant differences in the bonding parameters to W. The W=C distances are 2.195(4) and 2.171(6)Å. The carbonyl trans to the longest W=C bond has the shortest of the ten W-CO separations (1.994(5)Å) and the longest C≡O bond length (1.156(6)Å). The planes defined by the two carbene groups have a dihedral angle of 44.5°.

Original languageEnglish (US)
Pages (from-to)623-628
Number of pages6
JournalJournal of Crystallographic and Spectroscopic Research
Issue number8
StatePublished - Aug 1 1993


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