Conductometric and Thermodynamic Studies of Selected Imidazolium Chloride Ionic Liquids in N,N-Dimethylformamide at Temperatures from 278.15 to 313.15 K
This scientific article presents research on the electrical conductivity of imidazole-derived ionic liquids (1-methylimidazolium chloride, 1-ethyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium chloride, 1-hexyl-3-methylimidazolium chloride and 1-methyl-3-octylimidazolium chloride) in the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/29/6/1371 |
| _version_ | 1797239881263480832 |
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| author | Zdzisław Kinart |
| author_facet | Zdzisław Kinart |
| author_sort | Zdzisław Kinart |
| collection | DOAJ |
| description | This scientific article presents research on the electrical conductivity of imidazole-derived ionic liquids (1-methylimidazolium chloride, 1-ethyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium chloride, 1-hexyl-3-methylimidazolium chloride and 1-methyl-3-octylimidazolium chloride) in the temperature range of 278.15–313.15 K in N,N-Dimethylformamide. The measurement methods employed relied mainly on conductometric measurements, enabling precise monitoring of the conductivity changes as a function of temperature. Experiments were conducted at various temperature values, which provided a comprehensive picture of the conducting properties of the investigated ionic liquids. The focus of the study was the analysis of the conductometric results, which were used to determine the conductivity function as a function of temperature. Based on the obtained data, a detailed analysis of association constants (K<sub>A</sub>) and thermodynamic parameters such as enthalpy (∆H<sup>0</sup>), entropy (∆S<sup>0</sup>), Gibbs free energy (∆G<sup>0</sup>), Eyring activation enthalpy for charge transport (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>Δ</mo><msubsup><mi>H</mi><mi>λ</mi><mo>‡</mo></msubsup></mrow></semantics></math></inline-formula>) and diffusion processes (D<sup>0</sup>) was carried out. The conductometric method proved to be an extremely effective tool for accurately determining these parameters, significantly contributing to the understanding of the properties of imidazole-derived ionic liquids in the investigated temperature range. As a result, the obtained results not only provide new insights into the electrical conductivity of the studied ionic liquids but also broaden our knowledge of their thermodynamic behavior under different temperature conditions. These studies may have significant implications for the field of ionic liquid chemistry and may be applied in the design of modern materials with desired conducting properties. |
| first_indexed | 2024-04-24T17:58:35Z |
| format | Article |
| id | doaj.art-b13be90b550f4d11a38814dcb0b4abef |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-24T17:58:35Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-b13be90b550f4d11a38814dcb0b4abef2024-03-27T13:57:11ZengMDPI AGMolecules1420-30492024-03-01296137110.3390/molecules29061371Conductometric and Thermodynamic Studies of Selected Imidazolium Chloride Ionic Liquids in N,N-Dimethylformamide at Temperatures from 278.15 to 313.15 KZdzisław Kinart0Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163/165, 90–236 Lodz, PolandThis scientific article presents research on the electrical conductivity of imidazole-derived ionic liquids (1-methylimidazolium chloride, 1-ethyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium chloride, 1-hexyl-3-methylimidazolium chloride and 1-methyl-3-octylimidazolium chloride) in the temperature range of 278.15–313.15 K in N,N-Dimethylformamide. The measurement methods employed relied mainly on conductometric measurements, enabling precise monitoring of the conductivity changes as a function of temperature. Experiments were conducted at various temperature values, which provided a comprehensive picture of the conducting properties of the investigated ionic liquids. The focus of the study was the analysis of the conductometric results, which were used to determine the conductivity function as a function of temperature. Based on the obtained data, a detailed analysis of association constants (K<sub>A</sub>) and thermodynamic parameters such as enthalpy (∆H<sup>0</sup>), entropy (∆S<sup>0</sup>), Gibbs free energy (∆G<sup>0</sup>), Eyring activation enthalpy for charge transport (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>Δ</mo><msubsup><mi>H</mi><mi>λ</mi><mo>‡</mo></msubsup></mrow></semantics></math></inline-formula>) and diffusion processes (D<sup>0</sup>) was carried out. The conductometric method proved to be an extremely effective tool for accurately determining these parameters, significantly contributing to the understanding of the properties of imidazole-derived ionic liquids in the investigated temperature range. As a result, the obtained results not only provide new insights into the electrical conductivity of the studied ionic liquids but also broaden our knowledge of their thermodynamic behavior under different temperature conditions. These studies may have significant implications for the field of ionic liquid chemistry and may be applied in the design of modern materials with desired conducting properties.https://www.mdpi.com/1420-3049/29/6/1371electric conductivitiesionic liquidsN,N-Dimethylformamidethermodynamic function |
| spellingShingle | Zdzisław Kinart Conductometric and Thermodynamic Studies of Selected Imidazolium Chloride Ionic Liquids in N,N-Dimethylformamide at Temperatures from 278.15 to 313.15 K Molecules electric conductivities ionic liquids N,N-Dimethylformamide thermodynamic function |
| title | Conductometric and Thermodynamic Studies of Selected Imidazolium Chloride Ionic Liquids in N,N-Dimethylformamide at Temperatures from 278.15 to 313.15 K |
| title_full | Conductometric and Thermodynamic Studies of Selected Imidazolium Chloride Ionic Liquids in N,N-Dimethylformamide at Temperatures from 278.15 to 313.15 K |
| title_fullStr | Conductometric and Thermodynamic Studies of Selected Imidazolium Chloride Ionic Liquids in N,N-Dimethylformamide at Temperatures from 278.15 to 313.15 K |
| title_full_unstemmed | Conductometric and Thermodynamic Studies of Selected Imidazolium Chloride Ionic Liquids in N,N-Dimethylformamide at Temperatures from 278.15 to 313.15 K |
| title_short | Conductometric and Thermodynamic Studies of Selected Imidazolium Chloride Ionic Liquids in N,N-Dimethylformamide at Temperatures from 278.15 to 313.15 K |
| title_sort | conductometric and thermodynamic studies of selected imidazolium chloride ionic liquids in n n dimethylformamide at temperatures from 278 15 to 313 15 k |
| topic | electric conductivities ionic liquids N,N-Dimethylformamide thermodynamic function |
| url | https://www.mdpi.com/1420-3049/29/6/1371 |
| work_keys_str_mv | AT zdzisławkinart conductometricandthermodynamicstudiesofselectedimidazoliumchlorideionicliquidsinnndimethylformamideattemperaturesfrom27815to31315k |