title: Ni(2)Si(P(2)O(7))(2).
abstract: Dinickel(II) silicon bis-[diphosphate(4-)], Ni(2)Si(P(2)O(7))(2), is isotypic with other phosphates of the formula M(2)Si(P(2)O(7))(2) (M = Co, Cd). All atoms except Si (site symmetry 2) are found in general positions. Ni(2)O(10) dimers formed from edge-sharing NiO(6) octa-hedra are linked by corners and O-P-O bridges, forming slabs parallel to (100), which are in turn inter-connected by O-Si-O contacts.
authors.forename: Yahya
authors.initials: Y
authors.lastname: Toubi
authors.forename: Rachid
authors.initials: R
authors.lastname: Essehli
authors.forename: Michal
authors.initials: M
authors.lastname: Dušek
authors.forename: Karla
authors.initials: K
authors.lastname: Fejfarová
authors.forename: Brahim
authors.initials: B
authors.lastname: El Bali