Synthesis and Structure Characterization of a Manganese(Ⅱ) Complex With Eight Coordination Geometry: [Mn(O_2CMe)_2(phen)_2]

摘要

The title compound [Mn(O_2CMe)_2(phen)_2] (phen = 1,10-phenanthroline) 1 has been synthesized and structurally determined by single-crystal X-ray diffraction. The crystal is of orthor-hombic, space group Pbcn, with a = 12.554(4), b = 10.168(3), c = 17.704(5) A, V= 2259.7(12) A~3, Z = 4, C_(28)H_(22)MnN_4O_4, M_r= 533.44, D_c= 1.568 g/cm~3, F(000) = 1100, R_(int) = 0.0242, T= 293(2) K and μ = 0.631 mm~(-1). The final R = 0.0687 and wR = 0.1960 for 2046 observed reflections with Ⅰ > 2σ(Ⅰ). The structure of the complex consists of one Mn(Ⅱ) core coordinated by two bidentate-bound CH_3COO~- groups and two η~2-phen groups forming an eight-coordinate geometrical configuration.