Jahn-Teller effect and possible superconductivity in [18]annulene

Takashi Kato, Kazunari Yoshizawa, Tokio Yamabe

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

We discuss the Jahn-Teller effect and possible superconductivity in negatively charged [18]annulene, (CH)18, which has a highly symmetric D6h geometry in the neutral state. Electron-phonon coupling constants in model one-dimensional crystals of (CH)18- and (CH)183- are calculated and analyzed using the density functional B3LYP method. The lowest two frequency modes (116 cm-1 and 405 cm-1) causing distortions of the C-C framework of [18]annulene and the highest frequency mode (3201 cm-1) of C-H stretching appear to give significant electron-phonon coupling constants. Possible preconditions under which idealized one-dimensional crystals of (CH)18- and (CH)183- can exhibit superconductivity at finite temperature are considered.

Original languageEnglish
Pages (from-to)583-584
Number of pages2
JournalSynthetic Metals
Volume101
Issue number1
DOIs
Publication statusPublished - May 1999
Externally publishedYes
EventProceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier
Duration: Jul 12 1998Jul 18 1998

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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