| 含电解质溶剂体系ET(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 |
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| 引用本文： | 杨洁,董丽,王键吉,倪天军.含电解质溶剂体系ET(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[J].河南师范大学学报(自然科学版),2006,34(3):87-91. |
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| 作者姓名： | 杨洁 董丽 王键吉 倪天军 |
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| 作者单位： | 新乡医学院,化学教研室,河南,新乡,453002;河南师范大学,化学与环境科学学院,河南,新乡,453007 |
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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.
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| 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 |
| 文章编号： | 1000-2367(2006)03-0087-05 |
| 收稿时间： | 2005-12-01 |
| 修稿时间： | 2005年12月1日 |
Determination of ET(30) Values of some Solvent Systems with Electylete and Their Application in Kinetic Salt Effect Investigations of some Solvolisis Reactions |
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| YANG Jie,DONG Li,WANG Jian-ji,NI Tian-jun.Determination of ET(30) Values of some Solvent Systems with Electylete and Their Application in Kinetic Salt Effect Investigations of some Solvolisis Reactions[J].Journal of Henan Normal University(Natural Science),2006,34(3):87-91. |
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| Authors: | YANG Jie DONG Li WANG Jian-ji NI Tian-jun |
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| Institution: | 1.Department of Chemistry,Xinxiang Medical College, Xinxiang 453002, China;2. School of Chemical and Enviromental Sciences, Henan Normal University,Xinxiang 453007, China |
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| Abstract: | The E_T(30) values of 85%(V/V) 1,4-dioxane water LiClO_4,75%(V/V) 1,4-dioxane water LiClO_4,80%(V/V)ethanol water LiClO_4,ethanol Et_4NCl have been determined using the E_T(30) dye synthesized in auther's laboratory.The relationship between the E_T(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 E_T(30) values of the solvents.The results are interpreted from reaction mechanism and preferential solvation in solutions. |
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| Keywords: | E_T(30) values solvent polarity empirical scale kinetic salt effects solvolisis reaction preferential solvation |
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