초록
9-methyl-2,3,6,7-tetramethoxyfluorene이 $CH_3CN$과 $CH_2Cl_2$/TFA/TFAn-혼합용매계에서 갖는 전기화학적 특성을 CV측정을 통해 조사하였다. 이 화합물은 $CH_3CN$용매계에서 첫 번째 전자이동은 준가역 (quasi-reversible)반응, 두 번째 전자이동은 비가역 반응이었다. 그러나 TFA가 포함된 혼합용매 ($CH_2Cl_2$/TFA/TFAn)-계에서는 첫 번째, 두 번째 전자이동단계 모두 가역반응을 나타냈다. 진한 청색을 띄는 전해생성물은 혼합용매계에서 안전한 상태로 존재할 수 있어 향후 전기발색소자로서 사용이 가능하다.
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.
