title: Redetermination of AgPO(3).
abstract: Single crystals of silver(I) polyphosphate(V), AgPO(3), were prepared via a phospho-ric acid melt method using a solution of Ag(3)PO(4) in H(3)PO(4). In comparison with the previous study based on single-crystal Weissenberg photographs [Jost (1961 ▶). Acta Cryst. 14, 779-784], the results were mainly confirmed, but with much higher precision and with all displacement parameters refined anisotropically. The structure is built up from two types of distorted edge- and corner-sharing [AgO(5)] polyhedra, giving rise to multidirectional ribbons, and from two types of PO(4) tetra-hedra linked into meandering chains (PO(3))(n) spreading parallel to the b axis with a repeat unit of four tetra-hedra. The calculated bond-valence sum value of one of the two Ag(I) ions indicates a significant strain of the structure.
authors.forename: Katherina V
authors.initials: KV
authors.lastname: Terebilenko
authors.forename: Igor V
authors.initials: IV
authors.lastname: Zatovsky
authors.forename: Ivan V
authors.initials: IV
authors.lastname: Ogorodnyk
authors.forename: Vyacheslav N
authors.initials: VN
authors.lastname: Baumer
authors.forename: Nikolay S
authors.initials: NS
authors.lastname: Slobodyanik