Preparation and electrical conductivity of some simple and complex salts formed between N,N-dialkyl-1,3-dichalcogenacycloalkan-2-iminium and TCNQ .
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概要
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Four simple salts and six complex salts of TCNQ<SUP>\newdot</SUP> radical anion with <I>N</I>,<I>N</I>-dialky1-1,3-dichalcogenacycloalkan-2-iminium cations, (<U>Remark: Graphics omitted.</U>) and (<U>Remark: Graphics omitted.</U>) (<I>n</I>=2 or 3, Y=S or Se, R=Me or Et) were prepared. The electrical resistivity of (<U>Remark: Graphics omitted.</U>) (1.1×10<SUP>4</SUP> ohm cm) was more than 10 times lower than other three simple salts ((6.1–8.7)×10<SUP>5</SUP> ohm cm). Electronic absorption spectra and magnetic susceptibilities suggest that the latter three involve dimeric (TCNQ)<SUB>2</SUB><SUP>2−</SUP>, while in the former the interaction between two TCNQ<SUP>\newdot</SUP> radical anions is weak in the solid state. All the complex salts with compaction samples exhibited the resistivity of 2.4–4.0 ohm cm with very low activation energies (0.018–0.087 eV). Electronic spectra and magnetic susceptibilities show that the interaction between two TCNQ<SUP>\newdot</SUP> radical anions decreases owing to the implication of neutral TCNQ.
- 公益社団法人 日本化学会の論文
著者
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Tanaka Toshio
Department Of Applied Physics Faculty Of Engineering Tokyo University
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Araki Shingo
Department of Applied Chemistry, Faculty of Engineering, Osaka University
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Ishida Hiromi
Department of Applied Chemistry, Faculty of Engineering, Osaka University
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Tanaka Toshio
Department of Applied Chemistry, Faculty of Engineering, Osaka Univeristy
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