Synthesis, structure, and magnetic properties of the quaternary oxysulfides Ln5V3O7S6 (Ln = La, Ce).

Autor: Zheng, Chong, Hoffmann, Roald, Perkins, Timothy S., Calvagna, Frank, Fotovat, Roxanna, Ferels, Crystal, Mohr, Alyssa, Kremer, Reinhard K., Köhler, Jürgen, Simon, Arndt, Bu, Kejun, Huang, Fuqiang
Předmět:
Zdroj: Zeitschrift für Naturforschung B: A Journal of Chemical Sciences; Nov2021, Vol. 76 Issue 10-12, p677-688, 12p
Abstrakt: Two rare earth oxysulfides Ln5V3O7S6 (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 Ln3+ 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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