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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 38, Number 3
JKCSEZ 38(3)
June 20, 1994 

 
Title
The Complex Formation of Gallium Bromide with i-Butyl Bromide in Nitrobenzene)

니트로벤젠용액내에서의 브롬화갈륨과 i-브롬화부틸과의 착물형성에 관한 연구
Author
Oh Cheun Kwun, Jinhi Namkung, Young Hoon Lee

권오천, 남궁진희, 이영훈
Keywords
Abstract
니트로벤젠용액내에서의 i-브롬화브텔의 용해도를 19, 25, 40℃에서 브롬화갈륨이 있을 때와 없을때에 각각 측정하여 보았다. 브롬화갈륨이 존재할 때에는 용액내에서 i-브롬화부틸과 브롬화갈륨의 1:1착물, i-C4H9Br·GaBr3가 형성된다. 이 착물형성의 instability constant K는 다음 식으로 계산된다. i-C4H9Br·GaBr3 ↔ C4H9Br + 1/2Ga2Br6. 따라서 브로화갈륨과 각 브롬화알킬간의 착물형성의 안정도를 비교검토한 결과 이들 브롬화알킬의 carbonium ion의 안정도와 직접적인 관계가 있다고 본다.

The solubility of i-butyl bromide in nitrobenzene have been measured at 19, 25 and 40℃ in the presence and absence of gallium bromide. In the presence of gallium bromide, 1 : 1 complex, i-C4H9Br·GaBr3 is formed in the solution. The instability constant K of the complex formation was evaluated from the following equilibrium equation. i-C4H9Br·GaBr3 ↔ C4H9Br + 1/2Ga2Br6. From these result, it seems that the stabilities of the complex formation, gallium bromide with alkyl bromide, are directly related with those of the carbonium ions of alkyl bromide.

Page
208 - 213
Full Text
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