四磷酸镨钾的晶体结构

摘要/Abstract

摘要： 用蒸发溶液法生长了四磷酸镨钾(KPrP₄O₁₂)晶体,并用x射线衍射方法测定了β型晶体结构。结果表明,晶体属单斜晶系,空间群C2/c。晶胞参数:a=7.913(2),b=12.489(3),c=10.659(3)Å,β=110.48(2)°,Z=4。结构的基本单元是P₄O₁₂^6-环,它们沿C方向成层状排布。镨离子位于层间,与周围八个氧成键,平均Pr—O=2.468Å。

Abstract: The single crystal of potassium praseodymium metaphosphate (KPrP₄O₁₂) has been obtained by evaporation-solution method and its β type structure has been determined by x-ray diffraction method using MoK_α radiation.The crystal structure analysis characterized this structure as monoclinic with space group C2/c and cell parameters a=7.913(2), b=12.489(3), c=10.659(3)Å, β=110.48(2)°and z= 4. The basic structure units are P₄O₁₂^4- rings arranged in layers along the c axis. Pr³⁺ located between layers is bonded to surrounding eight oxygens. The average distance between praseodymium and coordinating oxygens is 2.468Å.

周清廉, 胡宁海, 洪广言, 越淑英. 四磷酸镨钾的晶体结构[J]. 应用化学, 1987, 0(2): 46-50.

Zhou Qinglian, Hu Ninghai, Hong Guangyan, Yue Shuying. CRYSTAL STRUCTURE OF POTASSIUM PRASEODYMIUM METAPHOSPHATE[J]. Chinese Journal of Applied Chemistry, 1987, 0(2): 46-50.

四磷酸镨钾的晶体结构

CRYSTAL STRUCTURE OF POTASSIUM PRASEODYMIUM METAPHOSPHATE

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