Journal of the Chemical Society, Dalton Transactions p. 3607 - 3614 (1994)
Update date:2022-08-30
Topics:
Ingham, Scott L.
Mays, Martin J.
Raithby, Paul R.
Solan Gregory A.
Sundavadra, Bharat V.
et al.
The bimetallic cobalt-molybdenum complex <(OC)4CoMo(CO)3(η5-C5H5)> reacted with phenylacetylene in benzene to give the bimetallic alkyne-bridged complex <(OC)3Co(μ-PhCCH)Mo(CO)2(η5-C5H5)> 1 as the major product and the trimetallic alkylidyne-capped complex a carbonyl group on the cobalt atom to give <<(PhS)Ph2P>(OC)2Co(μ-PhCCH)Mo(CO)2(η5-C5H5)> 3.Thermolysis of 3 in refluxing toluene afforded, as the major product, the complex <(η5-C5H5)(OC)Mo(μ-PPh2CH=CPh)(μ-SPh)Co(CO)2> 4, in which the unsymmetrical alkyne in 3 has been incorporated into a four-membered metallacycle, a triphenylphosphine ligand, has also been isolated as a minor product from this reaction.Conversion of 4 into 5 has been achieved separately by reaction of 4 with PPh3.Similarly, reaction of PPh2(SPh) with 4 yields a related compound <(η5-C5H5)(OC)Mo(μ-PPh2CH=CPh)(μ-SPh)Co(CO)
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