Okabe N, Oya N
Faculty of Pharmaceutical Sciences, Kinki University, Kowakae 3-4-1, Higashiosaka, Osaka 577-8502, Japan.
Acta Crystallogr C. 2000 Dec;56(Pt 12):1416-7. doi: 10.1107/s0108270100012786.
In the structure of the title compound, [Mn(2)(C(7)H(3)NO(4))(2)(H(2)O)(6)].2C(7)H(5)NO(4), a centrosymmetric dinuclear complex, hexaaaquabis(pyridine-2, 6-dicarboxylato)dimanganese(II) and free pyridine-2,6-dicarboxylic acid are present in a 1:2 ratio. In the complex, each Mn(2+) ion is coordinated by three O atoms and one N atom from the pyridine-2, 6-dicarboxylate ligands and by three water O atoms, resulting in a distorted pentagonal bipyramidal coordination. Within the centrosymmetric dinuclear complex, two Mn(2+) ions are bridged by two carboxylate O atoms. The crystal structure is stabilized by hydrogen bonds involving all the H atoms of the water ligands.
在标题化合物[Mn₂(C₇H₃NO₄)₂(H₂O)₆]·2C₇H₅NO₄的结构中，存在一个中心对称的双核配合物，六水双（吡啶 - 2,6 - 二羧酸根）二锰（II）和游离的吡啶 - 2,6 - 二羧酸以1:2的比例存在。在该配合物中，每个Mn²⁺离子由来自吡啶 - 2,6 - 二羧酸根配体的三个O原子和一个N原子以及三个水分子的O原子配位，形成扭曲的五角双锥配位构型。在中心对称的双核配合物中，两个Mn²⁺离子由两个羧酸根O原子桥连。晶体结构通过涉及水配体所有H原子的氢键得以稳定。
