Lei Jing-Wei, Xie Cai-Xia, Yang Huai-Xia
Pharmacy College, Henan University of Traditional Chinese Medicine, Zhengzhou 450008, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2012 May 1;68(Pt 5):m697-8. doi: 10.1107/S1600536812017734. Epub 2012 Apr 28.
In the title complex, {[Mn(3)(C(9)H(4)O(6))(2)(C(9)H(5)O(6))(2)(C(3)H(7)NO)(4)(H(2)O)(2)]·4C(3)H(7)NO}(n), one Mn(II) ion sits on an inversion center, and is six-coordinated by four O atoms from four anions (monoanionic and dianionic) derived from benzene-1,3,5-tricarboxylic acid and by two dimethyl-formamide (DMF) mol-ecules in a slightly distorted octa-hedral geometry. The other Mn(II) ion is six-coordinated by four O atoms from four monoanionic and dianionic ligands, one DMF mol-ecule and one water mol-ecule in a distorted octa-hedral geometry. The monoanionic and dianionic ligands bridge the Mn(II) ions, resulting in the formation of a layered structure parallel to (111) in which all of the carboxyl-ate groups of the anionic ligands coordinate the Mn(II) ions in a monodentate manner. Intra- and inter-molecular O-H⋯O hydrogen bonds are present in the structure.
在标题配合物{[Mn(3)(C(9)H(4)O(6))(2)(C(9)H(5)O(6))(2)(C(3)H(7)NO)(4)(H(2)O)(2)]·4C(3)H(7)NO}(n)中，一个Mn(II)离子位于一个对称中心上，由来自苯-1,3,5-三羧酸衍生的四个阴离子（单阴离子和双阴离子）的四个O原子以及两个二甲基甲酰胺（DMF）分子以稍有畸变的八面体几何构型进行六配位。另一个Mn(II)离子由来自四个单阴离子和双阴离子配体的四个O原子、一个DMF分子和一个水分子以畸变的八面体几何构型进行六配位。单阴离子和双阴离子配体桥连Mn(II)离子，形成平行于(111)的层状结构，其中阴离子配体的所有羧酸根基团以单齿方式与Mn(II)离子配位。结构中存在分子内和分子间的O-H⋯O氢键。
