SYNTHESIS AND CHARACTERIZATION OF BA2SNTE5 - A NEW ZINTL PHASE CONTAINING UNIQUE ONE-DIMENSIONAL CHAINS OF (SNTE3)(2-) AND DIMERIC UNITS OF(TE-2)(2-)

Authors
LI J LISZEWSKI YY MACADAMS LA CHEN F MULLEY S PROSERPIO DM
Citation
J. Li et al., SYNTHESIS AND CHARACTERIZATION OF BA2SNTE5 - A NEW ZINTL PHASE CONTAINING UNIQUE ONE-DIMENSIONAL CHAINS OF (SNTE3)(2-) AND DIMERIC UNITS OF(TE-2)(2-), Chemistry of materials, 8(3), 1996, pp. 598
Citations number
65
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Chemistry of materials → ACNP
ISSN journal
08974756
Volume
8
Issue
3
Year of publication
1996
Database
ISI
SICI code
0897-4756(1996)8:3<598:SACOB->2.0.ZU;2-R
Abstract
Ba2SnTe5, a novel alkaline-earth-metal tin telluride has been synthesi zed from a potassium polytelluride salt. Single-crystal X-ray diffract ion analysis shows that this compound is a Zintl phase containing uniq ue one-dimensional ''Zweireinfach''-chains of corner-sharing SnTe4 tet rahedra and isolated (Te-2)(2-) dimers. It represents the first ternar y alkaline-earth-metal telluride synthesized from a polytelluride flux . Band calculations indicate strong covalent bonding between the Sn an d Te within the chain. The interactions between the dimers and the cha ins are weak and repulsive.