Enthalpic pairwise self-interactions of urea and its four derivatives in (dimethylformamide + water) mixtures rich in water at T = 298.15 K
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- 作者：Li-Yuan Zhu ; Xin-Gen Hu ; hxgwzu@126.com" class="auth_mail" title="E-mail the corresponding author ; Hua-Qin Wang ; Nan Chen
- 关键词：Urea and its derivatives ; (Dimethylformamide ; + ; water) mixtures ; Dilution enthalpy ; Enthalpic pairwise self-interaction ; Isothermal titration calorimetry
- 刊名：Journal of Chemical Thermodynamics
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：93
- 期：Complete
- 页码：200-204
- 全文大小：433 K
文摘
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Dilution enthalpies of urea and its four derivatives were determined.
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Enthalpic pairwise interaction coefficients (h2) were calculated.
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The h2 values are all negative in pure water.
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The h2 values increase with the content of DMF in mixed solvents.
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Substituent and solvent effects on h2 coefficient was discussed.