Issue 8, 1989
From the journal:

Journal of the Chemical Society, Dalton Transactions

Chemistry of phosphido-bridged dimolybdenum complexes. Part 3. Reinvestigation of the reaction between [Mo2(η-C5H5)2(CO)6] and P2Ph4; X-ray structures of [Mo2(η-C5H5)2(µ-PPh2)2(CO)2], [Mo2(η-C5H5)2(µ-PPh2)2(µ-CO)], and trans-[Mo2(η-C5H5)2(µ-PPh2)2O(CO)]

Trushar Adatia,   Mary McPartlin,   Martin J. Mays,   Michael J. Morris  and  Paul R. Raithby  

Abstract

The thermal reaction of [Mo2(η-C5H5)2(CO)2] with P2Ph2 in toluene gives [Mo2(η-C5H5)2(µ-PPh2)2-(CO)2] in high yield. An X-ray diffraction study shows a Mo–Mo double bond [2.712(2)Å] symmetrically bridged by two PPh2 groups, with a planar Mo2P2 core. Under u.v. irradiation, further decarbonylation occurs to give [Mo2(η-C5H5)2(µ-PPh2)2(µ-CO)], in which two PPh2 groups and a carbonyl ligand bridge a Mo–Mo triple bond of length 2.515(2)Å. Oxidation of either of these complexes gives cis- and trans-[Mo2(η-C5H5)2(µ-PPh2)2(CO)]; the structure of the trans isomer has been determined by X-ray diffraction. Protonation of [Mo2(η-C5H5)2(µ-PPh2)2(CO)2] occurs across the metal–metal bond to give [Mo2(η-C5H5)2(µ-H)(µ-PPh2)2(CO)2][BF4].

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Article information

DOI
https://doi.org/10.1039/DT9890001555
Article type
Paper

J. Chem. Soc., Dalton Trans., 1989, 1555-1564

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Chemistry of phosphido-bridged dimolybdenum complexes. Part 3. Reinvestigation of the reaction between [Mo2(η-C5H5)2(CO)6] and P2Ph4; X-ray structures of [Mo2(η-C5H5)2(µ-PPh2)2(CO)2], [Mo2(η-C5H5)2(µ-PPh2)2(µ-CO)], and trans-[Mo2(η-C5H5)2(µ-PPh2)2O(CO)]

T. Adatia, M. McPartlin, M. J. Mays, M. J. Morris and P. R. Raithby, J. Chem. Soc., Dalton Trans., 1989, 1555 DOI: 10.1039/DT9890001555

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