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A new langbeinite-type phosphate: K(2)AlSn(PO(4))(3).


ABSTRACT: Single crystals of the title compound, dipotassium aluminium tin(IV) tris-[phosphate(V)], K(2)AlSn(PO(4))(3), were synthesized by a high temperature reaction in a platinum crucible. In the structure, the Al(III) and Sn(IV) atoms occupy the same site on a threefold rotation axis with occupational disorder in a 1:1 ratio. In the three-dimensional structure, Al/SnO(6) octa-hedra and PO(4) tetra-hedra are inter-connected via their vertices, yielding a [Al/SnP(3)O(12)](n) framework. The K atoms (site symmetry 3) reside in the large cavities delimited by the [Al/SnP(3)O(12)](n) framework, and are surrounded by 12 O atoms.

SUBMITTER: Li HY 

PROVIDER: S-EPMC3201338 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature

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A new langbeinite-type phosphate: K(2)AlSn(PO(4))(3).

Li Hai-Yan HY   Zhao Dan D  

Acta crystallographica. Section E, Structure reports online 20110920 Pt 10


Single crystals of the title compound, dipotassium aluminium tin(IV) tris-[phosphate(V)], K(2)AlSn(PO(4))(3), were synthesized by a high temperature reaction in a platinum crucible. In the structure, the Al(III) and Sn(IV) atoms occupy the same site on a threefold rotation axis with occupational disorder in a 1:1 ratio. In the three-dimensional structure, Al/SnO(6) octa-hedra and PO(4) tetra-hedra are inter-connected via their vertices, yielding a [Al/SnP(3)O(12)](n) framework. The K atoms (site  ...[more]

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