Crystal structures of K- and Cs-exchanged forms of zorite
- Autor(en)
- Natalia V Zubkova, Dmitry Y. Pushcharovsky, Gerald Giester, Igor V Pekov, Anna G. Turchkova, N V Chukanov, Ekkehart Tillmanns
- Abstrakt
The crystal structures of K- and Cs-exchanged forms of zorite were studied by X-ray diffraction and IR spectroscopy: K4.75Na 1.82[Ti(Ti0.79Nb0.20)4Si 12O34(O,OH)5.2] × 10.62 H2O (sp. gr. Cmmm, R = 0.0481 for 516 independent reflections) and Cs 4.34Na1.90[Ti(Ti0.80Nb0.18) 4Si12O34(O, OH)5] × 5.37 H2O (sp. gr. Cmmm, R = 0.0285 for 621 independent reflections). Both structures retain the mixed polyhedral framework of zorite: Na 6Ti(Ti,Nb)4(Si6O17) 2(O,OH)5 × nH2O, where n ~ 11. It is shown that the positions of the atoms located in the cavities of the frameworks of these compounds differ from those in the structures of zorite and its synthetic analogs. © 2005 Pleiades Publishing, Inc.
- Organisation(en)
- Institut für Mineralogie und Kristallographie
- Externe Organisation(en)
- Lomonosov Moscow State University (MSU), Russian Academy of Sciences
- Journal
- Crystallography Reports
- Band
- 50
- Seiten
- 367-373
- Anzahl der Seiten
- 7
- ISSN
- 1063-7745
- DOI
- https://doi.org/10.1134/1.1927591
- Publikationsdatum
- 2005
- Peer-reviewed
- Ja
- ÖFOS 2012
- 1051 Geologie, Mineralogie
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/a8586a4c-8e03-4f12-beff-1c799761d5d0