期刊
INORGANIC CHEMISTRY
卷 49, 期 10, 页码 4486-4490出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic902211c
关键词
-
资金
- Florida State University (FSU) Department of Chemistry and Biochemistry
- National Science Foundation [DMR-05-47791]
Single crystals of a new reduced vanadate phase, Cs5FeV5O13Cl6, have been grown from the reaction of metal oxides V2O5 and Fe2O3 in the presence of a metal reducing agent in e eutectic CsCl/NaCl flux. This compound adopts a tetragonal structure (P4/nmm, a = 10.943(3) angstrom, c = 10.535(4) angstrom, Z = 2) that consists of reduced vanadate layers separated by ionic layers comprised of [FeCl6](3-) anions and Cs+ cations. There are two distinct vanadium sites in the structure of this compound; V4+ is in square pyramidal configuration, and V5+ has a tetrahedral coordination environment. The V-51 NMR Knight shift and the magnetic susceptibility data indicate the delocalization of the unpaired electron of vanadium. Ferrimagnetic ordering is observed at 5 K.
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