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首页> 外文期刊>Inorganic Chemistry Communications >Hydrothermal synthesis and X-ray powder structure determination of a novel layered tin(IV) phosphate, Sn(HPO_4)_2·(NH_3)_0.4(H_2O)_0.6
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Hydrothermal synthesis and X-ray powder structure determination of a novel layered tin(IV) phosphate, Sn(HPO_4)_2·(NH_3)_0.4(H_2O)_0.6

机译:新型层状磷酸锡(IV)Sn(HPO_4)_2·(NH_3)_0.4(H_2O)_0.6的水热合成和X射线粉末结构测定

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摘要

A novel layered tin(IV) phosphate, Sn(HPO_4)_2·(NH_3)_0.4(H_2O)_0.6, was synthesized under mild hydrothermal conditions. The unit cell is trigonal, a = 4.9751(2) A, c = 22.5983(8)A, space group R3, Z = 3. The interlayer water and ammonia molecules are disordered and were both located on the same crystallographic site. This compound is the first example within the well-known family of alpha-metal(IV) phosphates of a non monoclinic phase stable at room temperature. The polymorphism of these compounds would explain several of the bibliographical discrepancies detected in the description of its physical-chemical properties.
机译:在温和的水热条件下合成了新型的层状磷酸锡(IV)Sn(HPO_4)_2·(NH_3)_0.4(H_2O)_0.6。晶胞是三角形的,a = 4.9751(2)A,c = 22.5983(8)A,空间群R3,Z =3。层间水和氨分子是无序的,并且都位于同一晶体学位置。该化合物是在室温下稳定的非单斜晶相的众所周知的α-金属(IV)磷酸盐家族中的第一个实例。这些化合物的多态性可以解释在描述其物理化学性质时发现的几个书目差异。

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