Hydrothermal synthesis and characterization of a new organically templated three-dimensional open-framework gallium phosphate-phosphite (C 6N 2H 18) 2(C 6N 2H 17)Ga 15(OH) 8(PO 4) 2(HPO 4) 12(HPO 3) 6·2H 2O
Abstract
Using H 3PO 3 as a phosphorus source and oxalic acid as a reducing agent, the first three-dimensional open-framework gallium phosphate-phosphite formula as (C 6N 2H 18) 2(C 6N 2H 17)Ga 15(OH) 8(PO 4) 2(HPO 4) 12(HPO 3) 6·2H 2O ( 1), has been hydrothermally synthesized in the presence of N,N,N',N'-tetramethylenediamine (TMEDA) as a structure-directing agent. Compound 1 crystallizes in trigonal system with space group P - 3, a = b = 19.046(3) Å, c = 8.3306(17) Å, γ = 120°, V = 2617.1(7) Å 3, and Z = 1. Its 3-D network is based on alternated Ga-centered (GaO 4 tetrahedra, GaO 5 trigonal bipyramids, and GaO 6 octahedra) and P-centered (PO 43-, HPO 42-, and HPO 32-) units. Protonated organic amines and water molecules are located in the 12-membered ring channels.
- Publication:
-
Solid State Sciences
- Pub Date:
- July 2010
- DOI:
- 10.1016/j.solidstatesciences.2010.04.013
- Bibcode:
- 2010SSSci..12.1103Z