1: 2 TCNQ/TCNQ mixed salts exhibiting ferromagnetic behavior at room temperature

Kazumasa Ueda, Toyonari Sugimoto, Satoshi Endo, Naoki Toyota, Masakado Kohama, Koji Yamamoto, Yusaku Suenaga, Hiroshi Morimoto, Toshiyuki Yamaguchi, Megumu Munakata, Nobuyoshi Hosoito, Nobuko Kanehisa, Yoshiyuki Shibamoto, Yasushi Kai

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35 Citations (Scopus)

Abstract

Ferromagnetic behavior at room temperature was observed in the tetramethylammonium (NMe4+) and cesium (Cs+) salts of tetracyanoquinodimethane (TCNQ) and its radical anion (TCNQ) in a molecular ratio of 1 : 2. The saturation magnetizations and coercive forces are 0.79 emu/mol and ≈ 300 Oe for (NMe4+ · TCNQ) · 1/2TCNQ, and 1.46 emu/mol and ≈ 100 Oe for (Cs+ · TCNQ) · 1/2TCNQ, respectively. In contrast, the 1 : 1 TCNQ/TCNQ mixed tetraethylammonium (NEt4+) salt, (NEt4+ · TCNQ) · TCNQ, exhibited no ferromagnetic behavior at room temperature nor at lower temperatures.

Original languageEnglish
Pages (from-to)295-300
Number of pages6
JournalChemical Physics Letters
Volume261
Issue number3
DOIs
Publication statusPublished - 1996 Oct 18

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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    Ueda, K., Sugimoto, T., Endo, S., Toyota, N., Kohama, M., Yamamoto, K., Suenaga, Y., Morimoto, H., Yamaguchi, T., Munakata, M., Hosoito, N., Kanehisa, N., Shibamoto, Y., & Kai, Y. (1996). 1: 2 TCNQ/TCNQ mixed salts exhibiting ferromagnetic behavior at room temperature. Chemical Physics Letters, 261(3), 295-300. https://doi.org/10.1016/0009-2614(96)00982-7