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Synthesis and characterization of cobalt(II) complex with a di-N-carboxymethylated tetraaza macrocycle

机译:二-N-羧甲基化四氮杂大环钴(II)配合物的合成与表征

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摘要

The complex [Co(H_2L)]Cl_2·4H_2O (1) (H_2L = 2,13-bis(2-carboxylmethyl)-5,6-dimethyl-2,6,13,17-tetraazatricyclo[14, 4,0~(1.18), 0~(7.12)]docosane) has been synthesized and structurally characterized. The title compound contains a centrosymmetric cation with the chloride anions and water molecules. The coordination geometry around the cobalt(II) ion is a distorted octahedron with the secondary and tertiary amines of the macrocycle and two oxygen atoms of the pendant carboxymethyl groups. Electronic spectra and effective magnetic moment of the complex also reveal a high-spin six-coordinated geometry.
机译:络合物[Co(H_2L)] Cl_2·4H_2O(1)(H_2L = 2,13-双(2-羧甲基)-5,6-二甲基-2,6,13,17-四氮杂三环[14,4,0〜 (1.18),0〜(7.12)]二十二烷)已经合成并在结构上表征。标题化合物含有与氯离子和水分子的中心对称阳离子。钴(II)离子周围的配位几何结构是扭曲的八面体,具有大环的仲胺和叔胺以及羧甲基侧基的两个氧原子。配合物的电子光谱和有效磁矩也显示出高旋转的六坐标几何。

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