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KMID : 1059519940380040265
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Journal of the Korean Chemical Society
1994 Volume.38 No. 4 p.265 ~ p.270
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Micellar Effect of the Aquation and the Base Hydrolysis of cis-[Co(en)2NH3Cl]2+ Ion
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Chung Jong-Jae
Baek Sung-Oh
Lee Jung-A
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Abstract
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The aquation and base hydrolysis of [Co(en)2NH3Cl]2+ were studied by UV spectroscopic method in various SDS aqueous solution. The base hydrolysis of [Co(en)2NH3Cl]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(kHM) was a little larger than that in the aqueous phase(kHW). 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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KEYWORD
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