SYNTHESIS, STRUCTURE AND LUMINESCENCE OF NEW CA3SNSI2O9

Authors
BLASSE G HAMSTRA MA IJDO DJW
Citation
G. Blasse et al., SYNTHESIS, STRUCTURE AND LUMINESCENCE OF NEW CA3SNSI2O9, Materials research bulletin, 30(8), 1995, pp. 967-973
Citations number
16
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
30
Issue
8
Year of publication
1995
Pages
967 - 973
Database
ISI
SICI code
0025-5408(1995)30:8<967:SSALON>2.0.ZU;2-A
Abstract
Ca3SnSi2O9 was prepared by solid state reaction of CaCO3, SnO2 and SiO 2. The crystal structure [a = 732.83(7), b = 1007.43(8), c = 1043.88(9 )pm, beta = 91.064(2)degrees, monoclinic, P2(1)/c, Z = 4, R(p) = 2.48, R(wp) = 3.27%] has been determined with the Rietveld method from neut ron powder diffraction data. The structure has isolated pairs of edge sharing Sn(IV)O-6 octahedra. These Sn2O10 groups show an efficient lum inescence with a very large Stokes shift.