Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Transport Rate of Transition Metal Cations through a Bulk Liquid Membrane Containing $NtnOenH_4$ and $NdienOenH_4$ as Carriers

운반체로 $NtnOenH_4$와 $NdienOenH_4$를 포함한 액체막을 통한 전이금속 양이온의 운반속도

  • 김해중 (충북대학교 자연과학대학 화학과) ;
  • 장정호 (충북대학교 자연과학대학 화학과) ;
  • 신영국 (충북대학교 자연과학대학 화학과)
  • Published : 19970200
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Abstract

The transport rates of transition metal cations were increased in order of Ni(II)$(NtnOenH_4)$and 1,12,15-triaza-3,4;9,10-dibenzo-5,8-dioxacyclo-heptadecane$(NdienOenH_4)$as carriers. The transport rates of transition metal cations was found to be of first order to the salt concentrations. It was also found that the dissociation process in the transport process is rate determining step. From the measurements of the transport rates at various temperatures, the partition free energies of hydration$({\Delta}G_p)$for the transition metal cations were calculated. The results showed that the order of transport rates of transition metal cations was found to be proportional to the magnitudes of negative value of the partition free energies of hydration$({\Delta}G_p)$.

거대고리 리간드인 1,12-diaza-3,4;9,10-dibenzo-5,8-dioxacyclopentadecane$(NtnOenH_4)$와 1,12,15-triaza-3,4;9,10-dibenzo-5,8-dioxacyclo-heptadecane$(NdienOenH_4)$를 운반체로 포함한 클로로포름 액체막을 통한 운반속도는 Ni(II)$({\Delta}Gp)$값을 구하여 본 결과, 운반속도의 순위는 전이금속 양이온들이 갖는 분배수화 자유에너지의 음의 값의 크기에 비례함을 알 수 있었다.

Keywords

References

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