A new sodium hydroxygallophosphate containing tetrameric gallium units:: Na3[Ga4O(OH)(H2O)(PO4)4] • H2O

被引:3
|
作者
Guesdon, A [1 ]
Monnin, Y [1 ]
Raveau, B [1 ]
机构
[1] ISMRA Univ Caen, CNRS, UMR 6508, Lab CRISMAT, F-14050 Caen, France
关键词
sodium gallium monophosphate; three-dimensional tunnel structure; tetrameric building units; hydrothermal synthesis; structure determination; single crystal; X-ray diffraction;
D O I
10.1016/S0022-4596(03)00397-9
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A new sodium hydroxygallophosphate, Na3Ga4O(OH)(H2O)(PO4)(4).H2O, has been prepared by hydrothermal synthesis. Its structure has been determined from a single-crystal X-ray diffraction study. It crystallizes in the P2(1)/c space group with the cell parameters a = 9.445(2) Angstrom, b = 9.028(1) Angstrom, c = 19.209(3) Angstrom, beta = 102.08(2), V = 1603.4(4) Angstrom(3). Its three-dimensional framework can be described from PO4 monophosphate groups sharing their apices with original Ga4O14(OH)(H2O) tetrameric building units, which result from the assembly of one GaO4 tetrahedron, one GaO5 trigonal bipyramid and two octahedra: GaO5(OH) and GaO4(OH)(H2O). The sodium cations and one water molecule are located in tunnels running along b. (C) 2003 Elsevier Inc. All rights reserved.
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页码:181 / 188
页数:8
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