Tetra­aqua­tetra­manganese(II) catena-germanodihydroxidodi(hydrogen­phosphate)diphosphate

摘要

The title compound, Mn4(H2O)4[Ge(OH)2(HPO4)2(PO4)2], was synthesized by the solvothermal method. Its crystal structure is isotypic with the iron and cobalt analogues [Huang et al. (2012). Inorg. Chem. >51, 3316–3323]. In the crystal structure, the framework is built from undulating manganese phosphate sheets parallel to (010) inter­connected by GeO6 octa­hedra (at the inversion center), resulting in a three-dimensional network with eight-membered ring channels into which all the protons point. The undulating manganese phosphate sheet consists of zigzag manganese octa­hedral chains along [10-1], built from MnO4(OH)(OH2) octa­hedra and MnO5(OH2) octa­hedra by sharing their trans or skew edges, which are inter­connected by PO3(OH) and PO4 tetra­hedra via corner-sharing. The crystal structure features extensive O—H⋯O hydrogen-bonding inter­actions.