[Zn-3(PO4)(2)(H2O)(0.8)(NH3)(1.2)]

作者：Stojanovic Jovica^*; Dordjevic Tamara; Karanovic Ljiljana

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2010, 66: I55-I57.

DOI：10.1107/S0108270110014885

The structure of the title compound, ammineaquadi-mu(5)-phosphato-trizinc(II), [Zn-3(PO4)(2)(H2O)(0.8)(NH3)(1.2)], consists of two parts: (i) PO4 and ZnO4 vertex-sharing tetrahedra arranged in layers parallel to (100) and (ii) ZnO2(N/O)(2) tetrahedra located between the layers. Elemental analysis establishes the ammine-to-water ratio as 3:2. ZnO2(N/O)(2) tetrahedra are located at special position 4e (site symmetry 2) in C2/c. The two O atoms of ZnO2(N/O)(2) are bonded to neighbouring P atoms, forming two Zn-O-P linkages and connecting ZnO2(N/O)(2) tetrahedra with two adjacent bc plane layers. A noteworthy feature of the structure is the presence of NH3 and H2O at the same crystallographic position and, consequently, qualitative changes in the pattern of hydrogen bonding and weaker N/O-H center dot center dot center dot O electrostatic interactions, as compared to two closely related structures.

• 出版日期2010-5