AgCu3V4O12: A novel perovskite containing mixed-valence silver ions

Yasuhide Akizuki, Ikuya Yamada, Koji Fujita, Hirofumi Akamatsu, Tetsuo Irifune, Katsuhisa Tanaka

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Abstract

A novel silver-containing perovskite, AgCu3V4O 12, was synthesized under high-pressure and high-temperature conditions. It crystallizes in an A-site-ordered perovskite structure (space group Im3Ì...), in which silver ions occupy the 12-coordinated A sites forming regular icosahedra, and exhibits metallic behavior. Bond-valence-sum calculations and X-ray photoemission spectroscopy reveal that Ag ions are present in the mixed-valence state, most likely attributable to the coexistence of Ag+ and Ag3+, unlike the case of well-known perovskite-type AgNbO3 and AgTaO3 containing only Ag + ions. We discuss metallic conduction in relation to electronic structure calculations.

Original languageEnglish
Pages (from-to)13824-13826
Number of pages3
JournalInorganic chemistry
Volume52
Issue number24
DOIs
Publication statusPublished - Dec 16 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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    Akizuki, Y., Yamada, I., Fujita, K., Akamatsu, H., Irifune, T., & Tanaka, K. (2013). AgCu3V4O12: A novel perovskite containing mixed-valence silver ions. Inorganic chemistry, 52(24), 13824-13826. https://doi.org/10.1021/ic402579v