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合成了一个新配合物[Mn(napn)(CH3OH)2]ClO4 (C26H26 Cl N2O8Mn,Mr = 584.88,H2napn = 双a-萘酚醛缩乙二胺),并测定了其晶体结构。晶体属于三斜晶系,空间群P ,a = 7.813(1),b = 13.025(2),c = 14.089(2) ? = 64.89(3), = 83.98(3), = 78.11(3)海琕 = 1270.16 ?,Z = 2, Dc = 1.529 g/cm3, F(000) = 604, R = 0.0837, wR = 0.1636。锰(Ⅲ)离子的配位构型为拉长的八面体。Schiff碱配体napn2-中的N2O2在赤道平面与锰(Ⅲ)形成四配位,2个CH3OH中的O原子分别在赤道平面两侧轴向位置与锰(Ⅲ)配位。由于Jahn-Teller效应,轴向上的MnO平均键长为2.52 拧A硗猓О写嬖诜肿幽诤头肿蛹淝饧?
A new complex [Mn (napn) (CH3OH) 2] ClO4 (C26H26ClN2O8Mn, Mr = 584.88, H2napn = bis a-naphthol aldehyde ethylenediamine) was synthesized and its crystal structure was determined. The crystal belongs to the triclinic system. The space group P, a = 7.813 (1), b = 13.025 (2), c = 14.089 (2)? = 64.89 (3), = 83.98 (3), = 78.11琕 = 1270.16 ?, Z = 2, Dc = 1.529 g / cm3, F (000) = 604, R = 0.0837, wR = 0.1636. The coordination configuration of manganese (Ⅲ) ions is elongated octahedron. N2O2 in the Schiff base ligand napn2- forms tetrahedral coordination with manganese (III) in the equatorial plane and O atom in two CH3OH coordinates with manganese (III) in the axial position on both sides of the equatorial plane respectively. Due to the Jahn-Teller effect, the average MnO bond length in the axial direction is 2.52 mm.