Abstract :
[en] A new family of antimonates Li2Cr3-xMIIIxSbO8 (MIII = Al, Fe, Ga) was synthesized and studied by X-ray diffraction and ir spectroscopy. The Al-containing compounds exhibit a hexagonal close-packed structure similar to that of LiFeSnO4 (a {reversed tilde equals} 5.8, c {reversed tilde equals} 9.5 Å. For M = Fe or Ga, two structural forms are isolated: a low-temperature hexagonal form which is isotypic with LiFeSnO4 and a high-temperature cubic form isotypic with the spinel structure. The hexagonal spinel transformation was observed for the first time, while the reverse transformation cannot be obtained. © 1982.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Cahay, René ;
Université de Liège - ULiège > Département de chimie (sciences) > Didactique des sciences chimiques Preudhomme, J.; Université de Liège, Institut de Chimie, B-4000 Sart-Tilman par Liege 1, Belgium
Hervieu, M.; UCBN - Université de Caen Basse-Normandie [FR] > Laboratoire de Cristallographie et Chimie du Solide
Choisnet, J.; UCBN - Université de Caen Basse-Normandie [FR] > Laboratoire de Cristallographie et Chimie du Solide
Raveau, B.; UCBN - Université de Caen Basse-Normandie [FR] > Laboratoire de Cristallographie et Chimie du Solide
Funding text :
The authors (P.T., R.C., J.P.) gratefully acknowledge the financial supportg iven to their laboratory by the “Fonds National de la Recherche Scientifique.”
Scopus citations®
9
