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含电解质溶剂体系E^T(30)参数的测定及其在溶剂解反应动力学盐效应研究中的应用

Determination of E_T(30) Values of some Solvent Systems with Electylete and Their Application in Kinetic Salt Effect Investigations of some Solvolisis Reactions
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摘要 利用作者合成的ET(30)染料,测定了85%(V/V)1,4-二氧六环+水+LiClO4,75%(V/V)1,4-二氧六环+水+LiClO4,80%(V/V)乙醇+水+LiClO4,乙醇+Et4NCl溶液的ET(30)值,考察了ET(30)值与一些溶剂解化学反应动力学数据间的关系.结果表明:一些溶剂解反应的速率常数与溶剂的ET(30)值有线性关系.本文从反应机理和溶液中的优先溶剂化作用的角度对这种现象进行了解释和说明. The ET（30） values of 85%（V/V） 1,4-dioxane ＋ water ＋ LiClO4 ,75%（V/V） 1,4-dioxane ＋ water ＋ LiClO4 ,80% （V/V） ethanol au water ＋ LiClO4 ,ethanol ＋ Et4NCl have been determined using the ET （30） dye synthesized in auther＇s laboratory. The relationship between the ET （30） values and the kinetic data of some solvolisis reactions has been examined. It is shown that there exist linear relationships between the logarithm of rate constants for some solvolisis reactions and ET （30） values of the solvents. The results are interpreted from reaction mechanism and preferential solvation in solutions.
作者 杨洁 董丽 王键吉 倪天军
机构地区 新乡医学院化学教研室 河南师范大学化学与环境科学学院
出处 《河南师范大学学报（自然科学版）》 CAS CSCD 北大核心 2006年第3期87-91,共5页 Journal of Henan Normal University(Natural Science Edition)
基金 国家自然科学基金(29973009)
关键词 ET(30)溶剂极性 经验参数 动力学盐效应 线性关系 优先溶剂化 ET（30） values solvent polarity empirical scale kinetic salt effects solvolisis reaction preferential solvation
分类号 O645.1 [理学—物理化学]
  • 相关文献

参考文献10

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河南师范大学学报（自然科学版）
2006年 第3期

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