Experimental and calculated X-ray powder diffraction data for cesium titanium silicate, CsTiSi2O6.5: A new zeolite

Autor:	M. Lou Balmer, David E. McCready, Keith D. Keefer
Rok vydání:	1997
Předmět:	Diffraction Radiation Absorption spectroscopy Chemistry Center (category theory) Space group Crystal structure Condensed Matter Physics Crystallography Silicate minerals X-ray crystallography General Materials Science Instrumentation Powder diffraction
Zdroj:	Powder Diffraction. 12:40-46
ISSN:	1945-7413 0885-7156
DOI:	10.1017/s0885715600009416
Popis:	Standardized experimental and calculated X-ray powder diffraction data for a new synthetic zeolite, cesium titanium silicate, CsTiSi2O6.5, are reported. In addition, a structure model in space groupIa3d(230), which is isomorphous with the mineral pollucite (CsAlSi2O6·xH2O), is proposed for CsTiSi2O6.5. This structure model is the basis of the reported calculated X-ray powder diffraction data for CsTiSi2O6.5. The experimental pattern for CsTiSi2O6.5shows this compound crystallizes in a body-centered cubic (BCC) unit cell witha=13.8423 (1) Å. The measured value of the reference intensity ratio (I/Ic) of CsTiSi2O6.5is 2.37, while the contrasting calculated value ofI/Icis 4.45. The experimental density (Dm) of CsTiSi2O6.5is 3.48±0.09 g/cm3, in agreement with the calculated density (Dx) of 3.42 g/cm3. Chemical analysis of CsTiSi2O6.5by atomic absorption spectroscopy gives its composition as 54±2 wt% Cs; 23±2 wt% Ti; 23±2 wt% Si, which compares favorably with the theoretical composition of 56 wt% Cs; 20 wt% Ti; 24 wt% Si.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::38bce1dbcfb604579d1cb53c9481aec0 https://doi.org/10.1017/s0885715600009416 Zobrazit plný text záznamu