Ultrasonic Studies of Molecular Interactions in Organic Binary Liquid Mixtures
The ultrasonic velocity, density and viscosity have been measured for the mixtures of 1-alkanols such as 1-propanol and 1-butanol with N-N dimethylformamide (DMF) at 303 K. The experimental data have been used to calculate the acoustical parameters namely adiabatic compressibility (β), free length (...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2010/137943 |
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| author | S. Thirumaran T. Alli D. Priya A. Selvi |
| author_facet | S. Thirumaran T. Alli D. Priya A. Selvi |
| author_sort | S. Thirumaran |
| collection | DOAJ |
| description | The ultrasonic velocity, density and viscosity have been measured for the mixtures of 1-alkanols such as 1-propanol and 1-butanol with N-N dimethylformamide (DMF) at 303 K. The experimental data have been used to calculate the acoustical parameters namely adiabatic compressibility (β), free length (Lf), free volume (Vf) and internal pressure (πi). The excess values of the above parameters are also evaluated and discussed in the light of molecular interaction existing in the mixtures. It is obvious that there is a formation of hydrogen bonding between DMF and 1-alkanols. Further, the addition of DMF causes dissociation of hydrogen bonded structure of 1-alkanols. The evaluated excess values confirm that the molecular association is more pronounced in system-II comparing to the system-I. |
| format | Article |
| id | doaj-art-25bcee85994145fe80f9ca59eb8032e7 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-25bcee85994145fe80f9ca59eb8032e72025-02-03T06:13:38ZengWileyE-Journal of Chemistry0973-49452090-98102010-01-017S1S217S22210.1155/2010/137943Ultrasonic Studies of Molecular Interactions in Organic Binary Liquid MixturesS. Thirumaran0T. Alli1D. Priya2A. Selvi3Department of Physics (DDE), Annamalai University, Annamalainagar, 608 002, IndiaDepartment of Physics, Govt. Women’s College, (Autonomous), Kumbakonam, IndiaDepartment of Physics, Govt. Women’s College, (Autonomous), Kumbakonam, IndiaDepartment of Physics, Govt. Women’s College, (Autonomous), Kumbakonam, IndiaThe ultrasonic velocity, density and viscosity have been measured for the mixtures of 1-alkanols such as 1-propanol and 1-butanol with N-N dimethylformamide (DMF) at 303 K. The experimental data have been used to calculate the acoustical parameters namely adiabatic compressibility (β), free length (Lf), free volume (Vf) and internal pressure (πi). The excess values of the above parameters are also evaluated and discussed in the light of molecular interaction existing in the mixtures. It is obvious that there is a formation of hydrogen bonding between DMF and 1-alkanols. Further, the addition of DMF causes dissociation of hydrogen bonded structure of 1-alkanols. The evaluated excess values confirm that the molecular association is more pronounced in system-II comparing to the system-I.http://dx.doi.org/10.1155/2010/137943 |
| spellingShingle | S. Thirumaran T. Alli D. Priya A. Selvi Ultrasonic Studies of Molecular Interactions in Organic Binary Liquid Mixtures E-Journal of Chemistry |
| title | Ultrasonic Studies of Molecular Interactions in Organic Binary Liquid Mixtures |
| title_full | Ultrasonic Studies of Molecular Interactions in Organic Binary Liquid Mixtures |
| title_fullStr | Ultrasonic Studies of Molecular Interactions in Organic Binary Liquid Mixtures |
| title_full_unstemmed | Ultrasonic Studies of Molecular Interactions in Organic Binary Liquid Mixtures |
| title_short | Ultrasonic Studies of Molecular Interactions in Organic Binary Liquid Mixtures |
| title_sort | ultrasonic studies of molecular interactions in organic binary liquid mixtures |
| url | http://dx.doi.org/10.1155/2010/137943 |
| work_keys_str_mv | AT sthirumaran ultrasonicstudiesofmolecularinteractionsinorganicbinaryliquidmixtures AT talli ultrasonicstudiesofmolecularinteractionsinorganicbinaryliquidmixtures AT dpriya ultrasonicstudiesofmolecularinteractionsinorganicbinaryliquidmixtures AT aselvi ultrasonicstudiesofmolecularinteractionsinorganicbinaryliquidmixtures |