Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Electrochemical Behaviors of Biliverdin in N,N-Dimethylformamide

N,N-Dimethylformamide 용매 중에서 Biliverdin의 전기화학적 거동

  • Zun Ung Bae (Department of Chemistry, kyungpook National University) ;
  • Heung Lark Lee (Department of Chemistry, kyungpook National University) ;
  • Tae Myeong Park (Department of Environmental Engineering, Suncheon Junior Technical College)
  • 배준웅 (경북대학교 자연과학대학 화학과) ;
  • 이흥락 (경북대학교 자연과학대학 화학과) ;
  • 박태명 (순천공업전문대학 환경공업과)
  • Published : 1993.08.20
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Abstract

The electrochemical reduction behavior or Biliverdin (BV) in N,N-dimethylformamide solvent was studied by DC polarography, cyclic voltammetry and the controlled potential coulometry. The reduced product was indentified by UV-Vis spectroscopy. In DC polarogram, two reduction waves of BV were founded. The half wave potentials of two reduction waves were -0.71 and -0.91 V vs. Ag/Ag$^+$ respectively. The current type of the 1st reduction wave was diffusion-controlled and the 2nd was diffusion current containing a little kinetic current. The 1st electrochemical reduction process was irreversible and BV reduced to Bilirubin.

비양성자성 용매인 N,N-dimethylformamide(DMF) 중에서 Biliverdin(BV)의 전기화학적인 환원거동을 직류폴라로그래프법, 순환전압전류법 및 정전위 전기량법으로 조사하였다. 또한 BV의 최종 환원생성물을 UV-Vis spectroscopy로 조사하였다. DMF 용매 중에서 BV는 -0.71 V vs. Ag/Ag$^+$와 -0.91 V vs. Ag/Ag$^+$ 에서 2개의 환원파를 보였다. 각 환원파의 전류유형은 제 1환원파는 확산지배적인 전류였으며, 제 2환원파는 반응성 전류가 약간 포함된 확산전류이었다. 그리고 제 1단계의 환원과정은 비가역적이었다. 각 환원단계에 관여하는 전자수는 1개씩 이었으며, BV은 DMF 용액 중에서 1전자 2단계의 환원과정을 거쳐서 Bilirubin으로 환원되었다.

Keywords

References

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