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

稀土学报(英文版), 2009, 27(1): 1-3. doi: 10.1016/S1002-0721(08)60179-9

^1, , ^2, , ^3,

1.Research Unit of Rare Earth Materials,National Research Center in Sciences of Materials,B,P,95 Hammam-Lif,2050,Tunisia

2.Research Unit of Rare Earth Materials,National Research Center in Sciences of Materials,B,P,95 Hammam-Lif,2050,Tunisia

3.Research Unit of Rare Earth Materials,National Research Center in Sciences of Materials,B,P,95 Hammam-Lif,2050,Tunisia

基金项目: the Ministry of Higher Education, Scientific Research and Technology of Tunisia

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

K.Horchani-Naifer ^1, , J.Amami ^2, , M.Ferid ^3,

1.Research Unit of Rare Earth Materials,National Research Center in Sciences of Materials,B,P,95 Hammam-Lif,2050,Tunisia

2.Research Unit of Rare Earth Materials,National Research Center in Sciences of Materials,B,P,95 Hammam-Lif,2050,Tunisia

3.Research Unit of Rare Earth Materials,National Research Center in Sciences of Materials,B,P,95 Hammam-Lif,2050,Tunisia

Keywords： polyphosphate

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

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