Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Studies on the Complexation of a Nitrogen-Oxygen Donor Macrocyclic Ligand with Transition Metal Ions in Dioxane-Water Mixed Solvent

물-다이옥산 혼합용매에서 $N_2O_2$계 거대고리 리간드와 전이금속이온과의 착물형성에 관한 연구

  • Moon-Hwan Cho (Department of Chemistry, College of Natural Sciences, Kang Weon National University) ;
  • Sang-Chul Lee (Department of Chemistry, College of Natural Sciences, Kang Weon National University) ;
  • Si-Joong Kim (Department of Chemistry, Korea University)
  • 조문환 (강원대학교 자연과학대학 화학과) ;
  • 이상철 (강원대학교 자연과학대학 화학과) ;
  • 김시중 (고려대학교 이과대학 화학과)
  • Published : 1987.12.20
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Abstract

The protonation constants of 3,4 : 9,10-dibenzo-1,12-diaza-5,8-dioxacyclotetradecane $(NenOenH_4)$ and stability constants of its transition metal complexes have been determined by the potentiometric titration in 1 : 1 dioxane-water mixture with 0.1 ionic strength at $25^{\circ}C.$ For a given anion system, the stabilitv constants of the complexes are in the order of $Mn^{2+}<\;Co^{2+}\;< Ni^{2+}\;<\;Cu^{2+}\;>\;Zn^{2+}$, which accords with the Williams-Irving series.

3,4 : 9,10-dibenzo-1,12-diaza-5,8-dioxacyclotetradecane $(NenOenH_4)$과 전이금속이온$(Cu^{2+},\;Ni^{2+},\;Co^{2+},\;Zn^{2+},\;Mn^{2+})$과의 착물의 안정도상수를 50%다이옥산-수용액에서 이온강도를 0.1로 하고, 전위차법적정으로 측정한 결과, 전이금속이온과 리간드가 만드는 착물의 안정도상수의 순서는 Williams-Irving서열과 일치한다.

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References

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