CRYSTAL-STRUCTURE OF ALPHA-TL2TE2O5

Authors
JEANSANNETAS B THOMAS P CHAMPARNAUDMESJARD JC FRIT B
Citation
B. Jeansannetas et al., CRYSTAL-STRUCTURE OF ALPHA-TL2TE2O5, Materials research bulletin, 33(11), 1998, pp. 1709-1716
Citations number
15
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
33
Issue
11
Year of publication
1998
Pages
1709 - 1716
Database
ISI
SICI code
0025-5408(1998)33:11<1709:COA>2.0.ZU;2-V
Abstract
alpha-Tl2Te2O5 crystallizes with the monoclinic symmetry (space group P2(1)/n) and unit-cell parameters a = 7.119(1), b = 12.138 (2), c = 8. 439 (2) Angstrom, beta = 114.28 (3)degrees, Z = 4. Its crystal structu re was solved from single crystal X-ray diffraction data to a final R- 1 = 0.0476. The strong stereochemical activity of the lone pairs E of Te and Tl atoms divides the structure into independent Tl2Te2O5 sheets parallel to (10 (1) over bar) and constituted of MO4E trigonal bipyra mids sharing edges and corners. (C) 1998 Elsevier Science Ltd.