Dispersive surface free energy of adsorbents modified by supramolecular structures of heterocyclic compounds
In the present work, the dispersive surface free energy was calculated by Dorris-Gray method for 30 samples of adsorbents modified with chiral supramolecular structures of uracil, 6-methyluracil, 5-hydroxy-6-methyluracil, 5-fluorouracil, thymine, melamine, cyanuric and barbirutic acids, and perylene...
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| Language: | English |
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Ural Federal University
2024-05-01
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| Series: | Chimica Techno Acta |
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| Online Access: | https://chimicatechnoacta.ru/article/view/7693 |
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| author | Vladimir Yu. Guskov Yulia Yu. Gainullina Alina F. Gabdulmanova Albina N. Gareeva |
| author_facet | Vladimir Yu. Guskov Yulia Yu. Gainullina Alina F. Gabdulmanova Albina N. Gareeva |
| author_sort | Vladimir Yu. Guskov |
| collection | DOAJ |
| description | In the present work, the dispersive surface free energy was calculated by Dorris-Gray method for 30 samples of adsorbents modified with chiral supramolecular structures of uracil, 6-methyluracil, 5-hydroxy-6-methyluracil, 5-fluorouracil, thymine, melamine, cyanuric and barbirutic acids, and perylene-3,4,9,10-tetracarboxylic dianhydride. It was shown that the homologous series of n-alkanes is better suited for measuring dispersive surface free energy than the homologous series of alcohols. It was established that the classical Dorris-Gray method does not allow obtaining well interpretable data for the objects studied. This is due to a noticeable effect that inductive interactions of a polar surface as an inductor with nonpolar alkane molecules have on the calculated values. We suggested to modify the Dorris-Gray method, making it possible to obtain data on the dispersive component of the free energy of adsorption. It was shown that the changes in dispersive surface free energy as a result of the modification correlate well with data on the structure and properties of supramolecular ensembles of the modifiers used. The results obtained can be used to predict the enantioselectivity of chiral adsorbents. |
| format | Article |
| id | doaj-art-7bbdd4dae6424fe88fa2c0d48f91f11b |
| institution | Kabale University |
| issn | 2411-1414 |
| language | English |
| publishDate | 2024-05-01 |
| publisher | Ural Federal University |
| record_format | Article |
| series | Chimica Techno Acta |
| spelling | doaj-art-7bbdd4dae6424fe88fa2c0d48f91f11b2025-08-20T03:35:43ZengUral Federal UniversityChimica Techno Acta2411-14142024-05-0111210.15826/chimtech.2024.11.2.105316Dispersive surface free energy of adsorbents modified by supramolecular structures of heterocyclic compoundsVladimir Yu. Guskov0Yulia Yu. Gainullina1Alina F. Gabdulmanova2Albina N. Gareeva3Ufa University of Science and TechnologyUfa University of Science and TechnologyUfa University of Science and TechnologyUfa Univerity of Science and TechnologyIn the present work, the dispersive surface free energy was calculated by Dorris-Gray method for 30 samples of adsorbents modified with chiral supramolecular structures of uracil, 6-methyluracil, 5-hydroxy-6-methyluracil, 5-fluorouracil, thymine, melamine, cyanuric and barbirutic acids, and perylene-3,4,9,10-tetracarboxylic dianhydride. It was shown that the homologous series of n-alkanes is better suited for measuring dispersive surface free energy than the homologous series of alcohols. It was established that the classical Dorris-Gray method does not allow obtaining well interpretable data for the objects studied. This is due to a noticeable effect that inductive interactions of a polar surface as an inductor with nonpolar alkane molecules have on the calculated values. We suggested to modify the Dorris-Gray method, making it possible to obtain data on the dispersive component of the free energy of adsorption. It was shown that the changes in dispersive surface free energy as a result of the modification correlate well with data on the structure and properties of supramolecular ensembles of the modifiers used. The results obtained can be used to predict the enantioselectivity of chiral adsorbents.https://chimicatechnoacta.ru/article/view/7693dispersive surface free energydorris–gray methodlinear free energy relationshipsupramolecular structurechiral 2d surfaces |
| spellingShingle | Vladimir Yu. Guskov Yulia Yu. Gainullina Alina F. Gabdulmanova Albina N. Gareeva Dispersive surface free energy of adsorbents modified by supramolecular structures of heterocyclic compounds Chimica Techno Acta dispersive surface free energy dorris–gray method linear free energy relationship supramolecular structure chiral 2d surfaces |
| title | Dispersive surface free energy of adsorbents modified by supramolecular structures of heterocyclic compounds |
| title_full | Dispersive surface free energy of adsorbents modified by supramolecular structures of heterocyclic compounds |
| title_fullStr | Dispersive surface free energy of adsorbents modified by supramolecular structures of heterocyclic compounds |
| title_full_unstemmed | Dispersive surface free energy of adsorbents modified by supramolecular structures of heterocyclic compounds |
| title_short | Dispersive surface free energy of adsorbents modified by supramolecular structures of heterocyclic compounds |
| title_sort | dispersive surface free energy of adsorbents modified by supramolecular structures of heterocyclic compounds |
| topic | dispersive surface free energy dorris–gray method linear free energy relationship supramolecular structure chiral 2d surfaces |
| url | https://chimicatechnoacta.ru/article/view/7693 |
| work_keys_str_mv | AT vladimiryuguskov dispersivesurfacefreeenergyofadsorbentsmodifiedbysupramolecularstructuresofheterocycliccompounds AT yuliayugainullina dispersivesurfacefreeenergyofadsorbentsmodifiedbysupramolecularstructuresofheterocycliccompounds AT alinafgabdulmanova dispersivesurfacefreeenergyofadsorbentsmodifiedbysupramolecularstructuresofheterocycliccompounds AT albinangareeva dispersivesurfacefreeenergyofadsorbentsmodifiedbysupramolecularstructuresofheterocycliccompounds |