Crystallochemistry and structural studies of two newly CaSb <sub>0.50</sub> Fe <sub>1.50</sub> (PO <sub>4</sub> ) <sub>3</sub> and Ca <sub>0.50</sub> SbFe(PO <sub>4</sub> ) <sub>3</sub> Nasicon phases is a research paper published in Powder Diffraction (2006). On theSindex it has a DataRank of 0.559. It has been cited 12 times, with 3 citing works in its 1-hop citation network.
Crystallographic structures of two new orthophosphates Ca 0.50 SbFe(PO 4 ) 3 and CaSb 0.50 Fe 1.50 (PO 4 ) 3 obtained by conventional solid state reaction techniques at 900 °C, were determined at room temperature from X-ray powder diffraction using Rietveld analysis. The two compounds belong to the Nasicon structural family. The space group is R 3 for Ca 0.50 SbFe(PO 4 ) 3 and R 3 c for CaSb 0.50 Fe 1.50 (PO 4 ) 3 . Hexagonal cell parameters for Ca 0.50 SbFe(PO 4 ) 3 and CaSb 0.50 Fe 1.50 (PO 4 ) 3 are: a =8.257(1) Å, c =22.276(2) Å, and a =8.514(1) Å, c =21.871(2) Å, respectively. Ca 2+ and vacancies in {[Ca 0.50 ] 3a [◻ 0.50 ] 3b } M1 SbFe(PO 4 ) 3 are ordered within the two positions, 3a and 3b, of M1 sites. Structure refinements show also a quasi-ordered distribution of Sb 5+ and Fe 3+ ions within the Nasicon framework. Thus, in {[Ca 0.50 ] 3a [◻ 0.50 ] 3b } M1 SbFe(PO 4 ) 3 , each Ca (3a) O 6 octahedron shares two faces with two Fe 3+ O 6 octahedra and each vacancy (◻ (3b) O 6 ) site is located between two Sb 5+ O 6 octahedra. In [Ca] M1 Sb 0.50 Fe 1.50 (PO 4 ) 3 compound ( R 3 c space group), all M1 sites are occupied by Ca 2+ and the Sb 5+ and Fe 3+ ions are randomly distributed within the Nasicon framework.
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Base Score Contribution
0.385
From this paper's citation signal
Citation Network Contribution
0.174
From 3 citing papers with measurable signal
Ranked by citation count — the same ordering the engine uses when summing log1p(Cq) over citers.
DataRank blends this paper's own citation count with the influence of the papers that cite it. Here, roughly 69% comes from its base citations and 31% from the citation network (3 citing papers contributed measurable signal).
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