6533b7d7fe1ef96bd126850d

RESEARCH PRODUCT

High oxidation state aqueous organometallics: synthesis and structure of a dinuclear oxo(pentamethylcyclopentadienyl)acetato complex of molybdenum(IV), [Cp*Mo(μ-O)(μ-O2CCH3)]2

Funda DemirhanPhilippe RichardRinaldo Poli

subject

Inorganic chemistrychemistry.chemical_elementHalf-sandwich complexesZinc010402 general chemistry01 natural sciencesInorganic ChemistryAcetic acidchemistry.chemical_compoundOxidation stateAqueous organometallic chemistryMaterials Chemistry[CHIM.CRIS]Chemical Sciences/Cristallography[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical ChemistryMolybdenumAqueous solution010405 organic chemistryChemistryOxo ligands0104 chemical sciencesCrystallographyMolybdenumDiamagnetismMetal–metal bondingOxidation process

description

International audience; The zinc reduction of Cp*2Mo2O5 in a MeOH–H2O mixture in the presence of acetic acid affords the diamagnetic dinuclear compound [Cp*MoO(O2CCH3)]2. An X-ray structural investigation reveals a novel dioxo- and diacetato-bridged structure, with a relatively strong metal–metal bond [2.5524(3) Å]. The compound exhibits a reversible one-electron oxidation process in the cyclic voltammogram. A comparison with other related structures reveals the effect of the electric charge on the mononuclear or dinuclear structural choice.Zinc reduction of Cp*2Mo2O5 in water–methanol in the presence of acetic acid affords compound Cp*2Mo2O2(O2CCH3)2, whose dinuclar tetrabridged structure is revealed by an X-ray crystallographic study.

10.1016/s0020-1693(02)01439-1https://hal.archives-ouvertes.fr/hal-03283678/file/179-10.1016-S0020-1693(02)01439-1-Accepted.pdf