Structural study of neutral-ionic transition in DMTTF-CA

Y. Nogami, M. Taoda, K. Oshima, S. Aoki, T. Nakayama, A. Miura

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Abstract

Dimethyltetrathiafulvalene-p-chloranil (DMTTF-CA), showing a particular neutral(N)-ionic(I) transition from a N phase into a NI coexisting phase by cooling, was structural analyzed by X-ray at 29K, 48K, 109K and 293K. Below Tc of 65K, changes observed in unit cell parameters, bond lengths and anisotropic temperature factors indicate 1) a increase in degree of charge transfer(CT) from a DMTTF donor to a CA acceptor and 2) a formation of a molecular dimerization, in I part of the coexisting phase. A possible staging superlattice was not observed.

Original languageEnglish
Pages (from-to)1219-1220
Number of pages2
JournalSynthetic Metals
Volume70
Issue number1-3
DOIs
Publication statusPublished - Mar 15 1995

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ASJC Scopus subject areas

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

Cite this

Nogami, Y., Taoda, M., Oshima, K., Aoki, S., Nakayama, T., & Miura, A. (1995). Structural study of neutral-ionic transition in DMTTF-CA. Synthetic Metals, 70(1-3), 1219-1220. https://doi.org/10.1016/0379-6779(94)02826-K