Spectral Study of Two Carbanion Mono-substituted 4�-phenyl-1,2,4-triazol-1-ium Phenacylids in Binary Protic Solvents
| Autor: | Mihaela Oprea, Dana Ortansa Dorohoi, Nicoleta Melniciuc Puica, Antonina Gritco-Todirascu |
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| Rok vydání: | 2020 |
| Předmět: |
Process equipment
Chemistry Materials Science (miscellaneous) Process Chemistry and Technology General Engineering Binary number General Chemistry General Medicine General Biochemistry Genetics and Molecular Biology Petrochemistry Materials Chemistry Organic chemistry General Pharmacology Toxicology and Pharmaceutics Carbanion |
| Zdroj: | Revista de Chimie. 71:1-9 |
| ISSN: | 2668-8212 0034-7752 |
| DOI: | 10.37358/rc.20.9.8311 |
| Popis: | The visible electronic absorption band of two 4�-phenyl-1,2,4-triazol-1-ium phenacylids was studied in two binary solvents: water (1) + ethanol (2) and water (1) + methanol (2) with variable content in water. The nature and the contribution of the intermolecular interactions to the spectral shifts in ternary solutions of the studied ylids were estimated based on the Kamlet Taft parameters (�*, a and a) previously measured by Buhvestov and all. The influence of the universal and specific interactions on the visible electronic band of the studied ylids depends on the water concentration in binary solvent. At small water concentrations in binary solvent, the hydrogen complexes of the type ylid-alcohol are predominant, while at high water concentrations, the complexes made by hydrogen bonds between water and ylid molecules prevail. The difference between the energies corresponding to molecular pairs of the types: ylid-water and ylid-alcohol was estimated based on the statistic cell model of the ternary solutions. |
| Databáze: | OpenAIRE |
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