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DOI: 10.1039/A806412A (Paper) Reference Section for: J. Mater. Chem., 1998, 8, 2757-2760

Synthesis and structural characterization of a novel tin (II) oxyphosphate, [NH4+]2[Sn3O(PO4)2]2–·H2O, containing one-dimensional chains constructed from tin phosphate cages

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Srinivasan Natarajan

Abstract

The hydrothermal synthesis and single crystal structure of a novel tin(ii) oxyphosphate, [NH4+]2[Sn3O(PO4)2]2–H2O, made from the networking of distorted square-pyramidal SnO4 and tetrahedral PO4 moieties, is presented. Crystal data: a=7.240(1), b=19.552(3), c=8.438(1) Å; V=1194.5(3) Å3; space group Cmc21 (no. 36) and Z=2. The structure, dominated by the presence of a large number of three-coordinated oxygen atoms and Sn}}n1O}}n1Sn linkages, creating an oxy-phosphate unit, consists of capped three-membered rings (cages) connected to each other via phosphate groups forming infinite one-dimensional chains. These chains are related to each other via multipoint hydrogen bonding involving the protonated ammonium and water molecules.

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