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2005
Gallium
I 2200
32- 024
RbGa3(P3O10)2: A New Gallium Phosphate Isotypic with RbAl3(P3O10 )2. — Single
crystals of the first rubidium gallium triphosphate are synthesized by solid state reaction of RbNO3, Ga 2O3, and (NH4)2HPO4 (1. Pt crucible, air, 770 K; 2. evacuated silica
tube, 1103 K, 20 h). RbGa3(P3O10 )2 crystallizes in the non-centrosymmetric orthorhombic space group C2221 with Z = 4. The structure contains both GaO4 tetrahedra and
GaO6 octahedra which are connected via their apices to triphosphate groups and form
a three-dimensional host lattice. The framework contains intersecting channels occupied by the Rb+ ions. The connection between the triphosphate groups and the GaO4
tetrahedra results in infinite helical [GaP6O20] columns. — (LESAGE, J.;
GUESDON*, A.; RAVEAU, B.; Acta Crystallogr., Sect. C: Cryst. Struct. Commun. 61
(2005) 5, i44-i46; Lab. Cristallogr. Sci. Mater., CNRS, Ec. Natl. Super. Ing., F-14050
Caen, Fr.; Eng.) — Schramke
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