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A chloro-bridged dimanganese complex and an oxo-bridged dititanium complex of a ditopic bis(pyrazol-1-yl)borate ligand

A chloro-bridged dimanganese complex and an oxo-bridged dititanium complex of a ditopic bis(pyrazol-1-yl)borate ligand

Inorganic Chemistry 44(25): 9489-9496

The synthesis and crystal structure analysis of the ditopic p-phenylene-bridged bis(pyrazol-1-yl)borate [[p-C6H4(Bpz2tBu)2]Li2] (LLi2; pz=pyrazol-1-yl) is described. A salt metathesis reaction between LLi2 and MnCl2 in THF leads to the dinuclear complex [L[Mn(THF)]2(mu-Cl)2] featuring a central diamond MnII-(mu-Cl)2-MnII core (X-ray crystal structure analysis). Treatment of LLi2 with 2 equiv of [Ti(NMe2)3Cl] gives the dinuclear titanium compound [L[Ti(NMe2)3]2]. Upon reaction of LLi2 with [Ti(NMe2)2Cl2] and water, the mu-oxo-bridged dititanium species [L[Ti(NMe2)Cl]2(mu-O)] is obtained in excellent yield (X-ray crystal structure analysis).

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Accession: 048052744

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PMID: 16323936

DOI: 10.1021/ic051689h

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