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

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

doi:10.1007/BF01325184

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

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

Medicine - Geriatrics, Palliative and Primary Care (GPPC)

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Abstract

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 language	English (US)
Pages (from-to)	623-628
Number of pages	6
Journal	Journal of Crystallographic and Spectroscopic Research
Volume	23
Issue number	8
DOIs	https://doi.org/10.1007/BF01325184
State	Published - Aug 1 1993

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title = "Crystal structure of a (μ-bis(carbene))dimetal complex of tungsten",

abstract = "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){\AA}. The carbonyl trans to the longest W=C bond has the shortest of the ten W-CO separations (1.994(5){\AA}) and the longest C≡O bond length (1.156(6){\AA}). The planes defined by the two carbene groups have a dihedral angle of 44.5°.",

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AU - Liang, Mong

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N2 - 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°.

AB - 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°.

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

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