| Synthesis and crystal structure of sodium praseodymium polyphosphate, NaPr（PO3）4 |
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| 引用本文： | K.,Horchani-Naifer,J.,Amami M. Ferid. Synthesis and crystal structure of sodium praseodymium polyphosphate, NaPr（PO3）4[J]. 中国稀土学报(英文版), 2009, 27(1): 1-3. DOI: 10.1016/S1002-0721(08)60179-9 |
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| 作者姓名： | K. Horchani-Naifer J. Amami M. Ferid |
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| 作者单位： | Research Unit of Rare Earth Materials,National Research Center in Sciences of Materials,B,P,95 Hammam-Lif,2050,Tunisia |
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| 基金项目： | Project supported by the Ministry of Higher Education, Scientific Research and Technology of Tunisia |
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| 摘 要： |
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| 关 键 词： | 晶体结构 碳酸钠 合成 镨 H3PO4 标题化合物 氧原子 钠离子 |
| 收稿时间： | 2008-01-27 |
Synthesis and crystal structure of sodium praseodymium polyphosphate, NaPr(PO3)4 |
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| K.Horchani-Naifer,J.Amami,M.Ferid. Synthesis and crystal structure of sodium praseodymium polyphosphate, NaPr(PO3)4[J]. Journal of Rare Earths, 2009, 27(1): 1-3. DOI: 10.1016/S1002-0721(08)60179-9 |
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| Authors: | K.Horchani-Naifer J.Amami M.Ferid |
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| Affiliation: | Research Unit of Rare Earth Materials, National Research Center in Sciences of Materials, B. P. 95 Hammam-Lif, 2050, Tunisia |
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| Abstract: | Reaction of Na2CO3, Pr6O11 and H3PO4 gave the sodium praseodymium polyphosphate NaPr(PO3)4. The title compound crystallized in the monoclinic P21/n space group with a=0.9965(4) nm, b=1.31437(4) nm, c=0.72271(3) nm,β=90.429(3)°, V=0.9465(4) nm3, 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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| Keywords: | polyphosphate praseodymium crystal structure infrared spectroscopy rare earths |
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