title: Sodium samarium tetra-kis-(poly-phosphate), NaSm(PO(3))(4).
abstract: NaSm(PO(3))(4) has been prepared by solid state reactions. It belongs to type II of the structural family of M(I)Ln(III)(PO(3))(4) compounds (M(I) = alkali metal and Ln(III) = rare earth metal) and is composed of (∞)(PO(3))(n)](n-) polyphosphate chains with a repeating unit of four PO(4) tetra-hedra. The chains extend parallel to [100] and share O atoms with irregular SmO(8) polyhedra, forming a three-dimensional framework which delimits tunnels occupied by Na(+) cations in a distorted octa-hedral environment.
authors.affiliation: Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China.
authors.forename: Dan
authors.initials: D
authors.lastname: Zhao
authors.forename: Lina
authors.initials: L
authors.lastname: Zhang
authors.forename: Feifei
authors.initials: F
authors.lastname: Li