Title of article :
The Ab Initio Structure Determination of BaBeSiO4 from Powder X-Ray Diffraction Data: A New Ordered Stuffed Cristobalite
Author/Authors :
Dann، نويسنده , , S.E and Weller، نويسنده , , M.T، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1998
Abstract :
The structure of BaBeSiO4 has been determined from powder X-ray diffraction data and consists of an ordered framework of BeO4 and SiO4 tetrahedra configured in a cristobalite-type geometry. Barium occupies strongly distorted 12-coordinate sites within the framework. 9Be and 29Si MASNMR spectra are consistent with the ordered distribution of beryllium and silicon determined for the framework.
Keywords :
B. X-ray diffraction , A. Inorganic compounds , D. Crystal structure , B. neutron scattering
Journal title :
Materials Research Bulletin
Journal title :
Materials Research Bulletin
