Reduction of [Cp*2Mo2O5] by mercaptopropionic acid in an aqueous medium. Isolation and characterization of a dinuclear oxo- and 3-sulfido-proprionato(2-)-bridged molybdenum(IV) compound - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Organometallic Chemistry Année : 2007

Reduction of [Cp*2Mo2O5] by mercaptopropionic acid in an aqueous medium. Isolation and characterization of a dinuclear oxo- and 3-sulfido-proprionato(2-)-bridged molybdenum(IV) compound

Résumé

Reaction of Cp*2Mo2O5 with HSCH2CH2COOH in acidic (by CF3COOH) 50:50 MeOH-H2O solvent at room temperature yields compound Cp*2Mo2(μ-O)(μ-SCH2CH2CO2)2, a dinuclear diamagnetic MoIV compound with a two-leg-sharing bis(four-legged piano stool) structure and a Mo-Mo distance of 2.6833(6) Å. A reaction monitoring by ESI MS shows the formation of an intermediate 18 mass units heavier, interpreted as a dihydroxo analogue. Electrochemistry shows a reversible, pH independent oxidation process and an irreversible, pH-dependent reduction process. Contrary to a recently published analogous reaction with the closely related HSCH2COOH substrate, this process does not lead to C-S bond cleavage.
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hal-03194589 , version 1 (09-04-2021)

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Chiara Dinoi, Petr Prikhodchenko, Funda Demirhan, Jenny Gun, Ovadia Lev, et al.. Reduction of [Cp*2Mo2O5] by mercaptopropionic acid in an aqueous medium. Isolation and characterization of a dinuclear oxo- and 3-sulfido-proprionato(2-)-bridged molybdenum(IV) compound. Journal of Organometallic Chemistry, 2007, 692 (12), pp.2599-2605. ⟨10.1016/j.jorganchem.2007.02.046⟩. ⟨hal-03194589⟩
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