Semiconducting Anion-radical Salts Derived from 3,3′5,5′-Tettrahalo-<I>p</I>-diphenoquinones
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概要
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3,3′5,5′-Tettrahalo- and 3,3′,5,5′-tetrabromo-<I>p</I>-diphenoquinones were found to form series of complex anion-radical salts of the M<SUP>+</SUP>(Q<SUB>2</SUB>)<SUP>−</SUP> or M<SUP>+</SUP><SUB>2</SUB>(Q<SUB>3</SUB>)<SUP>2−</SUP> type with various onium cations. These complex salts are darkcolored, almost black in many cases, and show electronic absorptions extending into the rock-salt region. In addition, bluish green-colored simple salts could be isolated with a few cations. The complex salts exhibit electrical resistivities in orders from 10 to 10<SUP>4</SUP> ohm cm at room temperature. Neither the pattern due to the quinone molecule nor that due to the semiquinone ion is present in their vibrational spectra. A single carbonyl stretching vibration band appears around 1600 cm<SUP>−1</SUP>, intermediate between that in the quinone and that in the semiquinone salt.
- 公益社団法人 日本化学会の論文
著者
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Matsunaga Yoshio
Department of Chemistry, Faculty of Science, Hokkaido University
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Narita Yoshihiro
Department of Chemistry, Faculty of Science, Hokkaido University
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