Abstract
By treating diphosphinito [PCP]-pincer ligand, (Ph2P(ortho-C6H4))2CH2 (1) with CoMe(PMe3)4 or CoMe3(PMe3)3 the same Csp3-H bond activation product [PCP]Co(I)(PMe3) (2) was obtained at room temperature. Treatment of 2 with C6Cl6, EtBr or BuBr and CH3I gave rise to the single electron oxidation addition products [PCP]Co(II)X(PMe3) (X = Cl (3); Br (4) and I (5)). The molecular structures of 2 – 6 were confirmed by X-ray diffraction analysis.
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