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概要
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Tropylium ions have been found to be good cations for forming highly conductive salts of TCNQ<SUP>\newdot</SUP>. Tropylium ions with different reduction potentials were prepared. The first reduction potentials which are correlated with the substituent constants σ<SUB>p</SUB><SUP>+</SUP> control the formation of the salts. The cations with higher reduction potentials underwent a reaction with TCNQ<SUP>\newdot</SUP> to give neutral TCNQ and coupling products. The molar ratios of the initially formed salts are also dependent on the reduction potentials. The simple salts are only formed when the reduction potentials are lower than −0.43 V. This fact is rationalized by the difference in the ease of electron transfer from TCNQ<SUP>\newdot</SUP> to tropylium ions which is determined by the reduction potentials. Some simple salts show significantly low electrical resistivities compared with usual TCNQ<SUP>\newdot</SUP> simple salts. BTDA–TCNQ<SUP>\newdot</SUP> also gave conductive salts of tropylium ions, indicating that BTDA–TCNQ is useful for forming organic semiconductors.
- 公益社団法人 日本化学会の論文
著者
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Yamashita Yoshiro
Department Of Biology Faculty Of Science Kumamoto University
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Mukai Toshio
Department Of Nuclear Engineering Faculty Of Engineering Kyushu University
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SAITO Gunzi
Institute for Molecular Science
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Hagiya Koji
Department of Chemistry, Faculty of Science, Tohoku University
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Mukai Toshio
Department of Chemistry, Faculty of Science, Tohoku University
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Mukai Toshio
Department of Chemistry, Faculty of Science Tohoku University
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