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1.
Abdel-Khalek Ahmed A. Mohamed Adel A. Ewais Hassan A. 《Transition Metal Chemistry》1999,24(2):233-238
The kinetics of oxidation of the chromium(III)-DL- aspartic acid complex, [CrIIIHL]+ by periodate have been investigated in aqueous medium. In the presence of FeII as a catalyst, the following rate law is obeyed:
Catalysis is believed to be due to the oxidation of iron(II) to iron(III), which acts as the oxidizing agent. Thermodynamic activation parameters were calculated. It is proposed that electron transfer proceeds through an inner-sphere mechanism via coordination of IO
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to CrIII. 相似文献
2.
The kinetics of oxidation of malonic acid, studied in aqueous acid perchlorate, conform to the rate law
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3.
The kinetics of anation of chromium(III) species, [Cr(H2O)6]3+ and [Cr(H2O)5OH]2+, by DL-methionine have been studied spectrophotometrically. Effects of varying [methionine]T, [H+], and temperature were investigated. The results are in accord with a mechanism involving a fast 11 outer-sphere association between chromium(III) species and amino acid zwitterion, followed by transformation of the outer-into inner-sphere complex by slow interchange. The rate law consistent with the mechanism is as follows:
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