Physical Inorganic Chemistry
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Heptairon Bis(phosphate) Tetrakis(hydrogenphosphate).
First published: 18 May 2010
Abstract
For Abstract see ChemInform Abstract in Full Text.
ChemInform Abstract
The title compound Fe7(PO4)2(HPO4)4 is prepared hydrothermally from FeCl2, ethylene glycol, H3PO4, and imidazole (H2O, 440 K, autoclave, 6 d). As revealed by single crystal XRD, it crystallizes in the triclinic space group P
with Z = 1. The compound is isostructural with M7(PO4)2(HPO4)4 (M: Mn, Co). The structure is based on a framework of edge- and corner-sharing FeO6, Fe5, and PO4 polyhedra. The Fe atoms in the title compound are exclusively in the divalent state.
