Preparation and characterization of carboximidate iron(II) complexes

The reactions of C5H4NCHdouble bond; length as m-dashNNHC(double bond; length as m-dashO)Ph (1) with Fe(II) chloride gave [Fe2(C5H4NC(OEt)double bond; length as m-dashNNHC(double bond; length as m-dashO)Ph)2(μ-OEt)2Cl2]) (2) in ethanol and [Fe2(C5H4NC(OMe)double bond; length as m-dashNNHC(double bond; length as m-dashO)Ph)2(μ-OMe)2Cl2] (3) in methanol as well as [Fe(C5H4NCHdouble bond; length as m-dashNNHC(double bond; length as m-dashO)Ph)Cl2] (4) in tetrahydrofuran, respectively. The X-ray diffraction analysis reveals their structures and complex 4 is proposed as an intermediate of formation of complexes 2 and 3.