Micellar Effect of the Aquation and the Base Hydrolysis of cis-[Co(en)2NH3Cl]2+ Ion

cis-[Co(en)2NH3Cl]2+ 이온의 수화반응과 염기성 가수분해반응에 미치는 미셀의 효과

  • 정종재 (경북대학교 자연과학대학 화학과) ;
  • 백성오 (경북대학교 자연과학대학 화학과) ;
  • 이정아 (경북대학교 자연과학대학화학과)
  • Published : 19940400


The aquation and base hydrolysis of [Co(en)$_2$NH$_3$Cl]$^{2+}$ were studied by UV spectroscopic method in various SDS aqueous solution. The base hydrolysis of [Co(en)$_2$NH$_3$Cl]$^{2+}$ with the addition of 0, 0.05, 0.1 mol dm$^{-3}$ sodium chloride was studied. For the aquation of the complex, the rate constant in the micellar phase(kH$^M$) was a little larger than that in the aqueous phase(kH$^W$). With the increase of SDS concentration, the second order rate constant(kOH) for the base hydrolysis unchanged below the CMC and sharply decreased down to a limiting value after the CMC was reached. The effect of added NaCl on the rate behavior of the complexes in the micellar solution were investigated by using an ion-exchanged model.



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