A reinvestigation of compound CpMo(PMe3)2(CH3)2: alkylation by single electron transfer and radical addition? - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of the Chemical Society Dalton Transactions Année : 2001

A reinvestigation of compound CpMo(PMe3)2(CH3)2: alkylation by single electron transfer and radical addition?

Résumé

The synthesis of the half-sandwich molybdenum(III) diphosphine dimethyl complex CpMo(PMe3)2(CH3)2 has been reinvestigated. The compound was obtained from the corresponding dichloro complex CpMo(PMe3)2Cl2 and methyllithium at low temperatures and isolated as a crystalline product by conducting all operations at temperatures lower than −10 °C. The complex is thermally unstable at room temperature but has been fully characterised by EPR spectroscopy, cyclic voltammetry and X-ray diffraction. The formation reaction is retarded by excess phosphine. On the basis of this and other related observations, a mechanism involving phosphine pre-dissociation followed by single electron transfer and radical addition is proposed.
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hal-03295887 , version 1 (28-07-2021)

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Erwan Le Grognec, Rinaldo Poli, Philippe Richard. A reinvestigation of compound CpMo(PMe3)2(CH3)2: alkylation by single electron transfer and radical addition?. Journal of the Chemical Society Dalton Transactions, 2001, 15, pp.2251-2257. ⟨10.1039/B101441M⟩. ⟨hal-03295887⟩
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