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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 15, Number 6
JKCSEZ 15(6)
December 20, 1971 

Spectrophotometric Study on the Complex of the Copper by 8-(p-Ethylbenzenesulfonamido) quinoline

분광광도법에 의한 8-(p-Ethylbenzenesulfonamido) quinoline과 구리와의 착물에 관한 연구
Heung Lark Lee, Yung Kyu Park, Chul Heui Lee

이흥낙, 박영규, 이철희
A new analytical reagent 8-(p-ethylbenzenesulfonamido)quinoline(EBSQ) has been synthesized, and identified its structure. EBSQ forms copper chloroform-soluble complex in a basic solution (pH = 7.5∼10.5). The other optimum conditions for the spectrophotometric study of Cu-EBSQ have been established at 380 mμ. Beer's law is followed in the concentration range of 0~44.5 μg per 10 ml of chloroform. The composition of complex has been found to be Cu(EBSQ-H)2and the over-all instability constant is calculated to be 1.22×10-7. The absorption coefficient of the Cu(EBSQ-H)2 complex is ε = 15,800.
378 - 384
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