Synthesis and structure of a microporous aluminogermanate with the zeolite rho topology

✍ Scribed by G.M Johnson; A Tripathi; J.B Parise

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 714 KB
• Volume: 28
• Category: Article
• ISSN: 1387-1811
• DOI: 10.1016/s1387-1811(98)00294-7

✦ Synopsis

A microporous aluminogermanate possessing zeolite rho framework topology has been synthesized from sodium and cesium containing gel mixtures. The dehydrated material of composition Na 16

Cs 8 Al 24 Ge 24 O 96 has been structurally characterized via combined Rietveld analysis of synchrotron X-ray and neutron diffraction data collected on a powdered sample. It has a cubic unit cell with a 0 =14.6738(2) A ˚and adopts space group I23, showing strict alternation of aluminum and germanium in the framework. The structural parameters are compared with those derived for other materials possessing rho topology.