Mononuclear versus dinuclear complex formation in nickel(II) sulfate/phenyl(2-pyridyl)ketone oxime chemistry depending on the ligand to metal reaction ratio: Synthetic, spectral and structural studies

The reactions of phenyl(2-pyridyl)ketone oxime (py)C(ph)NOH, with nickel(II) sulfate hexahydrate under reflux, in the absence of an external base, have been investigated. The reaction of NiSO 4·6H 2O with two equivalents of (py)C(ph)NOH in H 2O/MeOH leads to the dinuclear complex [Ni 2(SO 4) 2{(py)C...

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