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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 37, Number 8
JKCSEZ 37(8)
April 20, 1993 

 
Title
Electrochemical Behaviors of Biliverdin in N,N-Dimethylformamide

N,N-Dimethylformamide 용매 중에서 Biliverdin의 전기화학적 거동
Author
Zun Ung Bae, Heung Lark Lee, Tae Myung Park

배준웅, 이흥락, 박태명
Keywords
Abstract
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. 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.

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.

Page
730 - 734
Full Text
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