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首页> 外文期刊>Crystallography reports >Synthesis and crystal structure of BaFe[PO4](OH), a new orthophosphate with a mixed framework related to alumosilicates of the nepheline group
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Synthesis and crystal structure of BaFe[PO4](OH), a new orthophosphate with a mixed framework related to alumosilicates of the nepheline group

机译：与霞石基铝硅酸盐有关的具有混合骨架的正磷酸盐BaFe [PO4]（OH）的合成和晶体结构

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摘要

A new orthophosphate BaFe[PO4](OH) is obtained by hydrothermal synthesis. The unit cell parameters are as follows: a = 9.711(6), b = 8.991(5), and c = 4.912(2) ; space group P2(1)2(1)2(1). The structure has no features in common with the structures of three Ba-Fe phosphates studied. At the same time, the mixed framework, which is composed of five-vertex polyhedra of Fe and P-tetrahedra, exhibits a similarity to the frameworks of a number of alumosilicates belonging to the group of nepheline (nepheline NaAlSiO4, kalsilite KAlSiO4, and RbAlSiO4), as well as the beryllonite NaBePO4 beryllophosphate and H3O center dot ZnPO4 zin-cophosphate. All the frameworks contain six-membered rings which consist of alternating tetrahedra of different kinds with compensating cations at the ring centers. The topology of the new framework is most closely related to that of nepheline. Structures of this type are of interest as potential ion exchangers and ion-conducting materials.
机译：通过水热合成获得了一种新的正磷酸盐BaFe [PO4]（OH）。晶胞参数如下：a = 9.711（6），b = 8.991（5），c = 4.912（2）;空间组P2（1）2（1）2（1）。该结构与所研究的三种Ba-Fe磷酸盐的结构没有共同特征。同时，由Fe和P-四面体的五顶点多面体组成的混合骨架与许多霞石中的铝硅酸盐（霞石NaAlSiO4，钾铝石KAlSiO4和RbAlSiO4 ），以及铍钙石NaBePO4铍磷酸盐和H3O中心点ZnPO4锌共磷酸盐。所有的骨架都包含六元环，六元环由不同类型的交替四面体组成，在环中心带有补偿阳离子。新框架的拓扑与霞石的拓扑最紧密相关。这种类型的结构作为潜在的离子交换剂和离子传导材料受到关注。

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