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Citation: Zhou Qinglian, Hu Ninghai, Hong Guangyan, Yue Shuying. CRYSTAL STRUCTURE OF POTASSIUM PRASEODYMIUM METAPHOSPHATE[J]. Chinese Journal of Applied Chemistry, ;1987, 4(2): 46-50. shu

CRYSTAL STRUCTURE OF POTASSIUM PRASEODYMIUM METAPHOSPHATE

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Corresponding author: Zhou Qinglian,
Received Date: 3 January 1986
Available Online: 17 April 1986

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, P=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.
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