A new aquamanganese(II) oxalate phosphate, Mn(C2O4)Mn-3(PO4)(2)(H2O)(2)

作者：Zheng Juan; Shen Yuxia; Song Tao; Zhang Aiyun^*

来源：Acta Crystallographica Section E-Structure Reports Online, 2009, 65(5): I32-U114.

DOI：10.1107/S160053680901201X

The title salt, diaquatetramanganese(II) oxalate bis[orthophosphate(V)], Mn-4(C2O4)(PO4)(2)(H2O)(2), was synthesized hydrothermally and displays a three-dimensional framework structure. The asymmetric unit consists of two different Mn-II centers, half of an oxalate anion, a phosphate group and a coordinated water molecule. A crystallographic inversion center is located at the mid-point of the oxalate C-C bond. The distorted octahedral MnO6 and the tetragonal pyramidal MnO5 centers are linked through bridging oxalate and phosphate groups. The water molecule also has a weaker bonding contact to the five-coordinate Mn atom, which consequently exhibits a distorted octahedral geometry and also bridges the independent Mn atoms. The water molecule is a donor for intra- and intermolecular O-H center dot center dot center dot O hydrogen bonds.

• 出版日期2009-5
• 单位河南理工大学