니트로벤젠溶液 및 1,2,4-트리클로로벤젠 溶液內에서의 브로화갈륨과 n-브롬화부틸과의 相互作用

The Interaction of Gallium Bromide with n-Butyl Bromide in Nitrobenzene and in 1,2,4-Trichlorobenzene

  • 발행 : 1971.10.30

초록

니트로벤젠 및 1,2,4-트리클로로벤젠에서의 n-브롬화부틸의 溶解度를 $19^{\circ},\;25^{\circ},\;40^{\circ}C$에서 브롬화갈륨이 있을때와 없을때에 각각 測定하여 보았다. 브롬화갈륨이 存在하지 않을때에 니트로벤젠에서의 n-브롬화부틸의 溶解度가 1,2,4-트리클로로벤젠 보다 더 큰점은 n-브롬화부틸과 니트로벤젠과의 相互作用이 1,2,4-트리클로로벤젠 보다 더 강하다는 것을 나타낸다. 브롬화갈륨이 存在할 때에는 溶液內에서 n-브롬화부틸과 브롬화갈륨의 1:1 complex, $n-C_4H_9Br{\cdot}GaBr_3$가 형성된다. 이 complex의 instability constant K를 計算하였다. $n-C_4H_9Br{\cdot}GaBr_3{\\rightleftharpoons}n-C_4H_9Br+\frac{1}{2}Ga_2Br_6$ 또한 이 complex의 解離에 대한 엔탈피, 자유에너지 및 엔트로피도 산출하였다.

The solubilities of n-butyl bromide in nitrobenzene and in 1,2,4-trichlorobenzene have been measured at $19^{\circ},\;25^{\circ},\;and\;40^{\circ}C$ in the presence and absence of gallium bromide. When gallium bromide does not exist in the system, the solubility of n-butyl bromide in nitrobenzene is greater than in 1,2,4-trichlorobenzene, indicating a stronger interaction of n-butyl bromide with nitrobenzene than with 1,2,4-trichlorobenzene. In the presence of gallium bromide, complex of n-butyl bromide with gallium bromide, 1:1 complex, $n-C_4H_9Br{\cdot}GaBr_3$, is formed in the solution. The instability constant K of the complex was evaluated. $n-C_4H_9Br{\cdot}GaBr_3{\rightleftharpoons}n-C_4H_9Br+\frac{1}{2}Ga_2Br_6$ The changes of enthalpy, free energy and entropy for the dissociation of the complex were also calculated.

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참고문헌

  1. This Journal v.6 Sang Up Choi
  2. This Journal v.7 Sang Up Choi
  3. J. Phys. Chem. v.34 W. C. Johnson;J. B. Parson.
  4. Chem. Revs. v.54 L. J. Andrews
  5. Electronen Donator-Acceptor Komplexe G. Briegleb
  6. Ann. Rev. Phys. Chem. v.13 R. S. Mulliken;W. B. Person
  7. J. Am. Chem. Soc. v.75 H. C. Brown;W. J. WaIlace
  8. J. Am. Chem. Soc. v.75 H. C. Brown;L. P. Eddy;R. Wong
  9. J. Inorg. Nuclear. Chem. v.1 R. Wong;H.C. Brown