The Electrochemical Characteristics of 9-methyl-2,3,6,7-tetramethoxyfluorene in CH3CN and CH2Cl2/TFA/TFAn-solvent Mixture

CH3CN과 CH2Cl2/TFA/TFAn-혼합용매계에서의 9-methyl-2,3,6,7-tetramethoxyfluorene의 전기화학적 특성

  • Kim, Duk-Hyun (Department of Chemical Engineering, Korea Polytechnic University) ;
  • Kim, Su-Jin (Department of Industrial Chemistry, Chungwoon University)
  • 김덕현 (한국산업기술대학교 화학공학과) ;
  • 김수진 (청운대학교 공업화학과)
  • Received : 1998.06.15
  • Accepted : 1998.11.19
  • Published : 1999.04.10


The electrochemical properties of 9-methyl-2,3,6,7-tetramethoxyfluorene have been investigated by cyclic voltammetry in acetonitrile, dichloromethane, trifluoroacetic acid (TFA) and trifluoroacetic acid anhydride (TFAn). The first charge transfer for the compound in $CH_3CN$ appeared to be a quasi-reversible one-electron step. The second oxidation step from cation to dication was irreversible. However, the oxdition of the compound in a mixture of solvents containing $CH_2Cl_2$, TFA and TFAn was reversible for both the first and second charge transfer reactions. Since the electrolytic products display a darkblue color and can be stabilized in the solvent mixture, they may be used as an electrochromic material.


Electrochromic Properties;Reversible;9-methyl-2,3,6,7-tetramethoxyfluorene


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