During our exploration of kinetically stable solid state materials, we have discovered a new binary material, BaTe2, the first alkaline earth metal dichalcogenide prepared using flux growth technique. The crystal structure of BaTe2 was determined by single-crystal X-ray diffraction methods. It belongs to the tetragonal space group I4/mcm (No. 140) with lattice constants a = 7.181(1) A ̊, c = 8.898(2) A ̊, V = 458.8(1) A ̊3 and Z=4. The final residual index is converged to R=1.5%, wR2=3.5%. BaTe2 is a Zintl type compound isostructural to SrS2. Pairs of tellurium atoms form dimeric units (Te2)2- with a Te-Te separation of 2.7722(8) Å. The synthesis of BaTe2 at relatively low temperature has provided an alternative and convenient route for preparing new compounds in this category. © 1994.
Synthesis and crystal structure of a new alkaline-earth metal chalcogenide: Barium ditelluride / J. Li, H.Y. Guo, J.R. Carey, S. Mulley, D. M. Proserpio, A.A.D. Sironi. - In: MATERIALS RESEARCH BULLETIN. - ISSN 0025-5408. - 29:10(1994), pp. 1041-1048.
Titolo: | Synthesis and crystal structure of a new alkaline-earth metal chalcogenide: Barium ditelluride | |
Autori: | PROSERPIO, DAVIDE MARIA (Penultimo) SIRONI, ANGELO AGOSTINO DANIELE (Ultimo) | |
Settore Scientifico Disciplinare: | Settore CHIM/03 - Chimica Generale e Inorganica | |
Data di pubblicazione: | 1994 | |
Rivista: | ||
Tipologia: | Article (author) | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/0025-5408(94)90085-X | |
Appare nelle tipologie: | 01 - Articolo su periodico |