Electron transfer reaction between .DELTA.2,2'-bi-1,3-dithiole (TTF) and 7,7,8,8-tetracyanoquinodimethane (TCNQ). Electron donating property of TTF.
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概要
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The reaction between <I>Δ</I><SUP>2,2′</SUP>-bi-1,3-dithiole (TTF) and 7,7,8,8-tetracyanoquinodimethane (TCNQ) in ace-tonitrile solution, TTF+TCNQ\rightleftharpoonsTTF<SUP>+·</SUP>+TCNQ<SUP>\newdot</SUP>, was analyzed spectrophotometrically. The thermodynamical data of chemical equilibrium were determined to be <I>K</I>=(2.8±0.1)×10<SUP>−3</SUP> at 11 °C, Δ<I>H</I>=−6.7±1.3 kJ mol<SUP>−1</SUP> and Δ<I>S</I>=−72.8±17 J K<SUP>−1</SUP> mol<SUP>−1</SUP>. The reaction-rate study of the equilibrium in several solvents was also made by temperature-jump technique. The difference in the electron-donating properties between TTF and <I>N</I>,<I>N</I>,<I>N</I>′,<I>N</I>′-tetramethyl-<I>p</I>-phenylenediamine (TMPD) is discussed by comparing the results with those of the reaction between TMPD and TCNQ.
- 公益社団法人 日本化学会の論文
著者
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Yamagishi Akihiko
Department Of Chemistry College Of Arts And Sciences The University Of Tokyo
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Iida Yôichi
Department of Chemistry, Faculty of Science, Hokkaido University
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