Abstract
A crystalline mixed-metal sulfate compound NaPr(SO4)2(H2O) is synthesized under hydrothermal conditions and thoroughly characterized. Sodium bisulfite (NaHSO3) and piperazine are used with praseodymium acetate to obtain this sulfate-based structure. The single crystal structural analysis shows that the compound has the NaCe(SO4)2×H2O structure type and crystallizes in the trigonal space group P3221 (No. 154) with a = 6.9872(2) Å, c = 12.8935(8) Å, and V = 545.14(4) Å3. The compound has three-dimensional connectivity formed by the sulfate units with Pr and Na centers. Tricapped trigonal prismatic PrO9 units and square-antiprismatic NaO8 units link to the SO4 tetrahedron for building the three-dimensional structure. The compound is also characterized by PXRD, TGA, and FT—IR spectroscopy. The present study illustrates the usefulness of the bisulfite anion and secondary amine for the chiral structure building.
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