Synthesis and crystal structure of sodium praseodymium polyphosphate, NaPr(PO3)4

被引：5
|
作者：
Horchani-Naifer, K. [1 ]
Amami, J. [1 ]
Ferid, M. [1 ]
机构：
[1] Natl Res Ctr Sci Mat, Res Unit Rare Earth Mat, Hammam Lif 2050, Tunisia
来源：
JOURNAL OF RARE EARTHS | 2009年 / 27卷 / 01期
关键词：
polyphosphate; praseodymium; crystal structure; infrared spectroscopy; rare earths; CSPRP4O12; RBPRP4O12; FLUORESCENCE;
D O I：
10.1016/S1002-0721(08)60179-9
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Reaction of Na2CO3, Pr6O11 and H3PO4 gave the sodium praseodymium polyphosphate NaPr(PO3)(4). The title compound crystallized in the monoclinic P2(1)/n space group with a=0.9965(4) nm, b=1.31437(4) rim, c=0.72271(3) run. beta=90.429(3)degrees, V=0.9465(4) nm(3), Z=4, R=0.0493 and wR=0.1266 for 1855 independent reflections. The structure of NaPr(PO3)(4) consisted of PrO8 polyhedra sharing oxygen atoms with phosphoric group PO4 to form a three-dimensional framework, delimiting intersecting tunnels in which the sodium ion was located. Each Na+ ion was bonded to seven oxygen atoms.
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页码：1 / 3
页数：3
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