Thermal Generation and Structures of the Unsaturated Doubly Bridged Complex [Mo 2 Cp 2 Cl 2 (μ-SMe) 2 ] and Its Quadruply Bridged Isomer [Mo 2 Cp 2 (μ-Cl) 2 (μ-SMe) 2 ]

Abstract : The doubly and quadruply bridged isomers [Mo2Cp2Cl2(μ-SMe)2] (4) and [Mo2Cp2(μ-Cl)2(μ-SMe)2] (3) have been obtained as side-products when the dicarbonyl precursor [Mo2Cp2(CO)2(μ-SMe)3]Cl (1) is warmed in toluene solution, the main product being the tris-thiolato-bridged compound [Mo2Cp2(μ-Cl)(μ-SMe)3] (2). Complex 4 is stable at room temperature but can be transformed into 3 at elevated temperatures. 3 and 4 have been crystallographically characterized, and both contain equivalent molybdenum centers. The Mo−Mo separations of 2.5909(11) and 2.4507(2) Å in 3(syn) and 4 are consistent with single and triple Mo−Mo bonds, respectively.
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Organometallics, American Chemical Society, 2011, 30 (3), pp.649 - 652. 〈http://pubs.acs.org/doi/abs/10.1021/om101061y〉. 〈10.1021/om101061y〉
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Soumis le : jeudi 24 août 2017 - 16:25:53
Dernière modification le : mercredi 11 avril 2018 - 10:56:01

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Wilfried-Solo Ojo, John E. Mcgrady, François Y. Pétillon, Philippe Schollhammer, Jean Talarmin. Thermal Generation and Structures of the Unsaturated Doubly Bridged Complex [Mo 2 Cp 2 Cl 2 (μ-SMe) 2 ] and Its Quadruply Bridged Isomer [Mo 2 Cp 2 (μ-Cl) 2 (μ-SMe) 2 ]. Organometallics, American Chemical Society, 2011, 30 (3), pp.649 - 652. 〈http://pubs.acs.org/doi/abs/10.1021/om101061y〉. 〈10.1021/om101061y〉. 〈hal-01577036〉

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