Abstract
A new triclinic perovskite, BiNiO3, has been synthesized at a high pressure of 6 GPa in an oxidizing atmosphere. Structure refinements based on synchrotron X-ray powder diffraction and bond-valence calculations revealed a disproportionation of the Bi ions into Bi3+ and Bi5+, both being located in distorted oxygen octahedra. Because of the presence of Bi5+, the oxidation state of Ni was +2, rather than +3 as had been expected; BiNiO3 thus showed insulating behavior with localized spins of S = 1.
Original language | English |
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Pages (from-to) | 3733-3737 |
Number of pages | 5 |
Journal | Journal of Materials Chemistry |
Volume | 12 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2002 Dec 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Chemistry(all)
- Materials Chemistry