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DOI: 10.1039/A805298K (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1998, 4003-4008

Reactions of cationic carbyne complexes of manganese and rhenium with metal carbonyl anions

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Yongjun Tang, Jie Sun and Jiabi Chen

Abstract

Treatment of [(η-C5H5)(OC)2Mn[triple bond, length half m-dash]CC6H5]BBr4 1 and [(η-C5H5)(OC)2Re[triple bond, length half m-dash]CC6H5]BBr4 2 with the carbonyl monoanion [Mn(CO)5]– 3 in THF at low temperature afforded the ketenyl bridged complexes [Mn2{µ-C(CO)C6H5}(CO)6(η-C5H5)] 6 and [ReMn{µ-C(CO)C6H5}(CO)6(η-C5H5)] 7 respectively. The analogous reactions of complexes 1 and 2 with [Co(CO)4]– 4 gave corresponding ketenyl bridged complexes [MnCo{µ-C(CO)C6H5}(CO)5(η-C5H5)] 8 and [ReCo{µ-C(CO)C6H5}(CO)5(η-C5H5)] 9 respectively. Complexes 1 and 2 reacted with the carbonyl dianion [W(CO)5]2– 5 to give the dimetal carbene bridged complexes [MnW{µ-C(H)C6H5}(CO)7(η-C5H5)] 10 and [ReW{µ-C(H)C6H5}(CO)7(η-C5H5)] 11 respectively. The structures of complexes 6, 9 and 11 have been established by X-ray diffraction studies.

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