Simple and Complex Anion-radical Salts Derived from 2,3-Dicyano-1,4-naphthoquinone

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概要

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• Simple and complex anion-radical salts were prepared by the reduction of 2,3-dicyano-1,4-naphthoquinone with a number of onium iodides. The simple salts are green-colored, and the complex salts, with a composition of 1: 2, are dark green or brown. The latter salts show electronic absorptions extending into the near-infrared region. The electrical resistivities are rather high— 10<SUP>7</SUP>–10<SUP>12</SUP> ohm cm in the simple salts and 10<SUP>3</SUP>–10<SUP>7</SUP> ohm cm in the complex salts. The ESR spectra characteristic of triplet excitons were observed with polycrystalline samples, and the zero-field splitting parameters and the singlet-triplet separation energies were estimated for most of the salts. The anion-radicals appeared to be in strong pair-by-pair interactions in these salts.

• 公益社団法人 日本化学会の論文

著者

• Nonaka Akihiko

  Department Of Anesthesiology Yamanashi Medical University

• Matsunaga Yoshio

  Department of Chemistry, Faculty of Science, Hokkaido University

• Nonaka Akihiko

  Department of Chemistry, Faculty of Science, Hokkaido University

• Maki Izumi

  Department of Chemistry, Faculty of Science, Hokkaido University

• Nakakura Mitsuru

  Department of Chemistry, Faculty of Science, Hokkaido University

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