Freezing of ring-puckering molecular motion and giant dielectric anomalies in metal-organic perovskites

Yuji Imai, Biao Zhou, Yoshiharu Ito, Hiroki Fijimori, Akiko Kobayashi, Zhe Ming Wang, Hayao Kobayashi

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Pucker up! Metal-organic perovskites containing azetidinium cations, [(CH2)3NH2][M(HCOO)3] (M=Mn, Cu, Zn), all show a structural phase transition, coupled with the freezing of the ring-puckering molecular motion of azetidinium cations, and an extremely large dielectric anomaly near room temperature. Molecular dynamics simulations showed the freezing of ring-puckering motion of the four-membered-ring azetidinium cation near room temperature.

Original languageEnglish
Pages (from-to)2786-2790
Number of pages5
JournalChemistry - An Asian Journal
Volume7
Issue number12
DOIs
Publication statusPublished - Dec 2012

Keywords

  • dielectric constants
  • dielectric properties
  • organic-inorganic hybrid composites
  • perovskite phases

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