SYNTHESIS AND CHARACTERIZATION OF NH4(AL0.64GA0.36)(HPO4)(2) - A 3-DIMENSIONAL ANIONIC TUNNEL STRUCTURE WITH CHARGE BALANCING NH4+

Authors
STALDER SM WILKINSON AP
Citation
Sm. Stalder et Ap. Wilkinson, SYNTHESIS AND CHARACTERIZATION OF NH4(AL0.64GA0.36)(HPO4)(2) - A 3-DIMENSIONAL ANIONIC TUNNEL STRUCTURE WITH CHARGE BALANCING NH4+, Journal of materials chemistry, 8(1), 1998, pp. 261-263
Citations number
20
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Journal of materials chemistry → ACNP
ISSN journal
09599428
Volume
8
Issue
1
Year of publication
1998
Pages
261 - 263
Database
ISI
SICI code
0959-9428(1998)8:1<261:SACON->2.0.ZU;2-7
Abstract
NH4(Al0.64Ga0.36)(HPO4)(2) was prepared hydrothermally and examined by single crystal X-ray diffraction. it consists of corner-sharing MO6 o ctahedra and PO4 tetrahedra and is structurally related to NH4Fe(HPO4) (2) but distinct from H3O . Fe(HPO4)(2). The ammonium ions lie in a 3D connected network of tunnels with dimensions smaller than those found in zeolite A: a = 7.109(4), b = 8.695(4), c = 9.252(6) Angstrom, alph a = 65.01(4), beta = 70.25(5), y = 69.01(4)degrees, V = 472.1(4) Angst rom(3), space group P1, Z = 3, D-III = 2.63 g cm (-3), D-c = 2.66 g cm (-3), 168 parameters, 1916 reflections, R-F = 0.056 (all data).