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The Chemistry of the Selenium-containing Cluster 4-Se)2(CO)8(μ-CO)3>: Crystal Structures of 3-Se)2(CO)7(Ph2PC2PPh2)>, 4-Se)2(CO)10(SbPh3)> and 3-Se)2(CO)9>

DOI: 10.1039/DT9920003411

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 3411 - 3418 (1992)

Update date:2022-08-17

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Authors:

Layer, Teresa M.Layer, Teresa M.

Lewis, JackLewis, Jack

Martin, AvelinoMartin, Avelino

Raithby, Paul R.Raithby, Paul R.

Wong, Wing-TakWong, Wing-Tak

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Article abstract of DOI:10.1039/DT9920003411

The selenium-containing cluster 4-Se)2(CO)8(μ-CO)3> 1 may be readily prepared by vacuum pyrolysis of with PhSeSePh at 185 deg C.The subsequent reaction of 1 with the bidentate phosphine ligand bis(diphenylphosphino)acetylene (dppa) affords the orange triruthenium cluster 3-Se)2(CO)7(dppa)> 2, in 80percent yield.Complex 2 crystallises in the space group P1 with a = 12.059(3), b = 12.274(3), c = 13.172(5) Angstroem, α = 66.78(2), β = 83.21(3), γ = 89.30(2) deg and Z = 2.Treatment of complex 1 with triphenylantimony, SbPh3, yields the antimony-substituted cluster 4-Se)2(CO)10(SbPh3)> 3, in quantitative yield.Complex 3 crystallises in the space group P1 with a = 9.474(4), b = 12.456(3), c = 14.913(5) Angstroem, α = 91.89(2), β = 93.88(3), γ = 109.99(3) deg and Z = 2.Reaction of cluster 1 with carbon monoxide at room temperature and 70 atm affords the triruthenium selenido-bridged cluster 3-Se)2(CO)9> 4.Complex 4 crystallises in the space group P1 with a = 6.887(3), b = 9.606(7), c = 13.567(9) Angstroem, α = 82.48(6), β = 84.91(4), γ = 68.85(5) deg and Z = 2.

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