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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 39, Number 3
JKCSEZ 39(3)
June 20, 1995 

Characterization of Butyldithiodiacetic Acid, Benzmethyldithiodiacetic Acid and Cyclohexyldithiodiacetic Acid used Infrared Spectra in Aqueous Solution

수용액상에서 Infrared Spectras를 이용한 Butyldithiodiacetic Acid, Benzmethyldithiodiacetic Acid, Cyclohexyldithiodiacetic Acid의 특성에 관한 연구
Kiel-Myung Doh*, Il-Chool Kim, Bo-Yong Choi

도길명*, 김일출, 최보용
수용액상에서 BUDDA(Butyldithiodiacetic acid), BMDDA(Benzmethyldithiodiacetic acid), CHDDA(Cyclohexyldithiodiacetic acid)의 IR 스펙트라는 다양한 pH값에서 보고되어 진다. 이온화된 carboxyl group과 비이온화된 carboyl group의 비대칭 신축진동 흡수띠 차이를 이용하여 free-ligand의 구조를 추정한다. 또한 이들 연구의 접근은 리간드의 IR 스펙트라와 전위차 적정법을 이용하여 얻어진 pKa값을 비교함으로서 설명된다.

Infrared Spectra of aqueous solution of BUDDA(Butyldithiodiacetic acid), BMDDA(Benzmethyldithiodiacetic acid), and CHDDA(Cyclohexyldithiodiacetic acid) are reported at various pH values. On the basis of the antisymmetric stretching bands of the ionized and un-ionized carboxyl group, the structures of the free-ligand are inferred. An approach to the study of these structures are compared with the results of potentiometric titration curve and IR Spectra studies.

213 - 217
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