Na(H2O)[Mn(H2O)2(BP2O8)]: Crystal structure refinement

被引：7
作者：
Yakubovich, O. V. [1 ]
Steele, I. [2 ]
Dimitrova, O. V. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Fac Geol, Moscow 119992, Russia
[2] Univ Chicago, Chicago, IL 60637 USA
来源：
CRYSTALLOGRAPHY REPORTS | 2009年 / 54卷 / 01期
关键词：
DOT H2O; MONOHYDRATE; BOROPHOSPHATE; DIAQUA; ZINCOBOROPHOSPHATE; DEHYDRATION;
D O I：
10.1134/S1063774509010039
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The crystal structure of synthetic manganese sodium borophosphate hydrate Na(H2O)[Mn(H2O)(2)(BP2O8)] was refined based on X-ray diffraction data. The compound was prepared by soft hydrothermal synthesis in the MnCl2-Na3PO4-B2O3-H2O system. The unit-cell parameters are a= 9.602(1) A..., c= 16.037(3) A..., sp. gr. P6(5)22, Z= 6, D (x) = 2.57 g/cm(3). The water molecules were found to be statistically distributed in the channels of the mixed anionic paraframework consisting of (BO4) and (PO4) tetrahedra and [MnO4(H2O)(2)] octahedra. The hydrogen atoms of the water molecules coordinated to the Mn2+ cations were located and their positional and thermal parameters were refined. The crystal-chemical features of borophosphates of the general formula A (x) M(H2O)(2)(BP2O8)(H2O) are considered.
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页码：13 / 18
页数：6
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