کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9633540 | 1426346 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of placement of hydroxyl groups in isomeric butanediol on the behaviour of thermophysical and spectroscopic properties of pyrrolidin-2-one
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of placement of hydroxyl groups in isomeric butanediol on the behaviour of thermophysical and spectroscopic properties of pyrrolidin-2-one Effect of placement of hydroxyl groups in isomeric butanediol on the behaviour of thermophysical and spectroscopic properties of pyrrolidin-2-one](/preview/png/9633540.png)
چکیده انگلیسی
The thermophysical parameters, viz. excess molar volume VE, ultrasonic speed u, viscosity η and spectroscopic parameters, viz. IR and 1H NMR have been measured for the mixtures of pyrrolidin-2-one and isomeric butanediol (1,2-, 1,3-, 1,4- and 2,3-BTD) over the whole composition range at 308.15 K. Results indicate that intermolecular interactions for different mixtures increase in the order: 2,3-BTD < 1,2-BTD < 1,3-BTD < 1,4-BTD. The partial and apparent molar quantities QiE, isentropic compressibility KSE, excess viscosity ηE and excess Gibbs free energies of activation for viscous flow ÎaGâE have also been estimated and analyzed. The spectroscopic measurements (IR and 1H NMR) confirm that the interaction between unlike molecules takes place through hydroxyl groups of isomeric butanediol. A good agreement is obtained between excess quantities and spectroscopic data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 37, Issue 8, August 2005, Pages 791-801
Journal: The Journal of Chemical Thermodynamics - Volume 37, Issue 8, August 2005, Pages 791-801
نویسندگان
S.K. Mehta, Ganga Ram, K.K. Bhasin,