...
首页> 外文期刊>Journal of the Indian Chemical Society >Kinetics and mechanism of oxidation of iron(II) by N-chloro-p-substituted-benzenesulfonamides
【24h】

Kinetics and mechanism of oxidation of iron(II) by N-chloro-p-substituted-benzenesulfonamides

机译:N-氯-对-取代-苯磺酰胺氧化铁(II)的动力学和机理

获取原文
获取原文并翻译 | 示例
           

摘要

The kinetics of oxidation of Fe-II by N-chloro-N-sodiobenzenesulfonamide (chloramine-B, CAB), N-chloro-N-sodio-p-methylbenzenesulfonamide (chloramine-T. CAT or CAMB), N-chloro-N-sodio-p-ethylbenzenesulfonamide (CAEB), N-chloro-N-sodio-p-chlorobenzenesulfonamide (CACB), N-chloro-N-sodio-p-bromobenzenesulfonamide (CABB) and N-chloro-N-sodio-p-iodobenzenesulfonamide (CAIB) in aqueous sulfuric acid medium have been investigated. The observed kinetics of first order in [oxidant], fractional order each in [Fe-II] and [SO42-], and inverse fractional order in [H+] have been explained by a mechanism involving the formation of an intermediate by the direct interaction between the oxidising species ArSO2NH2Cl+ and [Fe-II], which subsequently undergoes disproportionation in the rate-determining step leading to Fe-III, respective sulfonamide and Cl-. The related rate law has been deduced. The activation parameters have also have computed. The constancy of the free energies of activation may signal the operation of similar mechanism in all the cases. [References: 14]
机译:N-氯代-N-二苯磺酰胺(氯胺-B,CAB),N-氯代-N-二-对甲基苯磺酰胺(氯胺-T.CAT或CAMB),N-氯代-N氧化Fe-II的动力学-对-对-对-乙基苯磺酰胺(CAEB),N-氯-N-对-对-氯苯磺酰胺(CACB),N-氯-N-对-对-溴苯磺酰胺(CABB)和N-氯-N-对-对-苯磺酰胺已经研究了在硫酸水溶液中的碘苯磺酰胺(CAIB)。所观察到的[氧化剂]一级动力学,[Fe-II]和[SO42-]级分的动力学以及[H +]级分的逆动力学已通过涉及通过直接相互作用形成中间体的机理进行了解释。氧化物质ArSO 2 NH 2 Cl +和[Fe-II]之间发生反应,然后在决定Fe-III的速率确定步骤中歧化,分别得到磺酰胺和Cl-。推导了相关的利率法。激活参数也已计算。在所有情况下,激活自由能的恒定性可能会发出类似机制的信号。 [参考:14]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号