Absorption spectra of the cationic radical salt of 3,3',5,5'-tetramethylbenzidine in acetonitrile.

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概要

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• The absorption spectrum of 3,3′,5,5′-tetramethylbenzidine (TMB) perchlorate in acetonitrile strongly depends on both the temperature and concentration. Analyzing the absorption band around 660 nm, which corresponds to the charge transfer from TMB to (TMB)<SUP>2+</SUP>, the equilibrium constant and the enthalpy change of the charge-transfer complex formation at 25°C have been obtained as 1.9×10<SUP>4</SUP> mol<SUP>−1</SUP> dm<SUP>3</SUP> and −66.2 kJ mol<SUP>−1</SUP>, respectively.

• 公益社団法人 日本化学会の論文

著者

• Awano Hiroshi

  Department Of Materials Science And Engineering Faculty Of Engineering Yamagata University

• Ohigashi Hiroji

  Department of Material Science and Engineering, Yamagata University, Yonezawa 992-8510, Japan

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