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ChemInform Abstract: Ab initio Structure Solution from X-Ray Powder Data at Moderate Resolution: Crystal Structure of a Microporous Layer Silicate.

โœ Scribed by S. VORTMANN; J. RIUS; S. SIEGMANN; H. GIES

Publisher
John Wiley and Sons
Year
2010
Weight
27 KB
Volume
28
Category
Article
ISSN
0931-7597

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โœฆ Synopsis

Ab initio Structure Solution from X-Ray Powder Data at Moderate Resolution: Crystal Structure of a Microporous Layer Silicate.

-Based on the powder XRD data, the structure of the layered microporous Na-silicate RUB-18 is determined by a general direct strategy applying the sum function tangent formula followed by Rietveld analysis. The results lead to the formula Na8(Si32O64(OH)8)โ€ข32 H2O for RUB-18, the structure of which is characterized by layers of SiO4 tetrahedra and chains of edge-sharing NaO6 octahedra.

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ChemInform Abstract: Crystal Structure,
ChemInform Abstract: Crystal Structure, Including H-Atom Positions, of Ti2O(PO4)2(H2O)2 Determined from Synchrotron X-Ray and Neutron Powder Data.
โœ M. A. SALVADO; P. PERTIERRA; S. GARCIA-GRANDA; J. R GARCIA; M. T. FERNANDEZ-DIAZ ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 30 KB ๐Ÿ‘ 1 views

The structure consists of a three-dimensional network of TiO 6 octahedra and PO 4 tetrahedra linked by vertex sharing. The two independent Ti atoms are connected by an oxo-bridge and two independent H 2 O molecules are linked to one type of Ti atoms. -(SALVADO, M. A.;