title: K(3)Gd(PO(4))(2).
abstract: The title compound, tripotassium gadolinium(III) bis-[ortho-phosphate(V)], was synthesized by a high-temperature solution reaction. Of the 12 atoms of the asymmetric unit (1 × Gd, 2 × P, 3 × K, 6 × O), all but two O atoms (which are in general positions) lie on mirror planes. The crystal structure features sheets of composition [Gd(PO(4))(2)](3-) which extend parallel to (100) and are built up from isolated PO(4) tetra-hedra and GdO(7) monocapped prisms through corner- and edge-sharing. The K(+) ions, which have coordination numbers of 10, 9 and 11, help to stack the anionic sheets along [100] into a three-dimensional structure.
authors: Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China.
authors: Dan
authors: D
authors: Zhao
authors: Fei Fei
authors: FF
authors: Li
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677
references: Acta Crystallogr D Biol Crystallogr. 2009 Feb;65(Pt 2):148-55
references: 19171970