title: Dilithium barium diphosphate.
abstract: The crystal structure of the novel title diphosphate, Li(2)BaP(2)O(7), exists with a three-dimensional lattice composed of BaO(9) polyhedra linked to corner- and edge-sharing P(2)O(7) diphosphate groups, forming layers parallel to the (010) plane, the layers being linked by P[bond]O[bond]Ba bridges. Tunnels thus created between the layers are occupied by Li(+) cations, two of which lie on twofold axes.
authors.affiliation: Laboratoire de Chimie du Solide Appliqué, Laboratoire Associé Francophone N degrees 501, Université Mohammed V, Agdal, Av. Ibn Batouta, BP 1014, Rabat, Morocco.
authors.forename: Nezha
authors.initials: N
authors.lastname: Dridi
authors.forename: E
authors.initials: E
authors.lastname: Arbib
authors.forename: Ali
authors.initials: A
authors.lastname: Boukhari
authors.forename: Elizabeth M
authors.initials: EM
authors.lastname: Holt