SYNTHESIS, STRUCTURAL AND SPECTROSCOPIC STUDIES OF CRIINBIVF6

Authors
GOUBARD F CHASSAING J BIZOT D QUARTON M
Citation
F. Goubard et al., SYNTHESIS, STRUCTURAL AND SPECTROSCOPIC STUDIES OF CRIINBIVF6, European journal of solid state and inorganic chemistry, 31(3), 1994, pp. 223-233
Citations number
14
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
European journal of solid state and inorganic chemistry → ACNP
ISSN journal
09924361
Volume
31
Issue
3
Year of publication
1994
Pages
223 - 233
Database
ISI
SICI code
0992-4361(1994)31:3<223:SSASSO>2.0.ZU;2-H
Abstract
The new compound Cr(II)Nb(IV)F6 and solid solutions CrNb1-xZrxF6 (almo st-equal-to 0.05 less-than-or-equal-to x less-than-or-equal-to 0.34 an d 0.75 less-than-or-equal-to x less-than-or-equal-to 1) have been synt hesized. Structural determinations, by Rietveld fullprofile technique have been carried out on powdered samples. The tetragonal ''HT'' form of CrNbF6 displays a ferrodistorsive order of elongated CrF6 and compr essed NbF6 octahedra induced by a strong cooperative Jahn-Teller effec t. Diffuse reflectance spectra of CrNbF6 and of mixed crystals are dis cussed with reference to ligand field theory.