Synthesis, structure, and magnetic properties of the quaternary oxysulfides Ln 5V3O7S6 (Ln = La, Ce)

Author:

Zheng Chong1ORCID,Hoffmann Roald2,Perkins Timothy S.3,Calvagna Frank4,Fotovat Roxanna1,Ferels Crystal1,Mohr Alyssa1,Kremer Reinhard K.5,Köhler Jürgen5,Simon Arndt5,Bu Kejun6,Huang Fuqiang6

Affiliation:

1. Department of Chemistry and Biochemistry , Northern Illinois University , DeKalb , IL , 60115 , USA

2. Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , USA ,

3. Department of Chemistry , Coker University , Hartsville , SC , 29550 , USA

4. Department of Chemistry , Rock Valley College , Rockford , IL , 61114 , USA

5. Max-Planck-Institut für Festkörperforschung , Heisenbergstrasse 1 , D-70569 Stuttgart , Germany

6. Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai , 200050 , P. R. China

Abstract

Abstract Two rare earth oxysulfides Ln 5V3O7S6 (Ln = La, Ce) have been synthesized and their structures determined. The two isostructural compounds crystallize in the orthorhombic space group Pmmn (no. 59). The structure features one-dimensional edge-sharing VS4O2 octahedron chains parallel to the b axis. The bonding between V and S/O is covalent, and between Ln 3+ and the rest of the matrix ionic. Magnetic susceptibility measurement revealed that V is in a mixed valence state of V3+ and V4+. Its magnetic behavior follows the Curie-Weiss law.

Publisher

Walter de Gruyter GmbH

Subject

General Chemistry

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