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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 18, Number 3
JKCSEZ 18(3)
June 20, 1974 

 
Title
Polarographic Behaviors of Copper and Cadmium Complexes with 2,2'-Bipyridine and Ethylenediamine in Acetonitrile

아세토니트릴에서 구리와 카드뮴의 2,2'-Bipyridine과 Ethylenediamine 착물에 대한 폴라로그래프적 연구
Author
Doo Won Park, Heung Lark Lee, Zun Ung Bae

박두원, 이홍락, 배준웅
Keywords
Abstract
물 아닌 용매 아세토니트릴에서 구리와 카드뮴의 2,2´-비피리딘(bipy.)과 에틸렌디아민(en.) 착물의 성질의 직류와 교류폴라로그래프로 조사한 결과 각 착물의 전극과정은 아래와 같이 생각된다. 이상의 모든 파는 학산에만 의존한다. 또 Cu(Ⅰ)-bipy. 착물의 리간드의 수는 2이며, 착물해리상수 Kd= (1.5±0.1)×10-7이었다.

Polarographic behaviors of copper and cadmium complexes with 2,2'-bipyridine and ethylenediamine in acetonitrile have been investigated by the DC and AC polarography. The reduction processes are estimated as follows; Cu(Ⅱ)-bipy. complex e-→E1/2 = +0.1V Cu(Ⅰ)-bipy. complex e-→E1/2 = -0.43V Cu(Hg) Cu(Ⅱ)-en. complex e-→Cu(Ⅰ)-en. complex e-→E1/2 = -0.56V Cu(Hg) Cd(Ⅱ)-bipy. complex e-→E1/2 = -0.57V Cd(Ⅰ)-bipy. complex 2e-→E1/2 = -0.97V Cd(Ⅰ)-bipy. complex Cd(Ⅱ)-en. complex e-→E1/2 = +0.05V Cd(Ⅰ)-en. complex e-→E1/2 = -0.92V Cd(Hg) The limiting currents of all steps are controlled by diffusion. The number of ligand and the dissociation constant for Cu(Ⅰ)-bipy. complex were found to be n = 2 and Kd = (1.5±0.1)×10-7, respectively.

Page
202 - 209
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