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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.
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 (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 .ach Na ion is bonded to seven oxygen atoms.