Изучение кислотно-основных свойств и структурных параметров тиобарбитуровой кислоты
The stepwise proton-ligand stability constant of thiobarbituric acid anion was determined in an aqueous solution via pH-potentiometry at ionic strength I = 0,1 and temperature T = 20°C. Based on the absorption spectra analysis of thiobarbituric acid (H2L, H2thioBar) solutions in the UV-region at dif...
| Published in: | Перспективы развития фундаментальных наук. Т. 2 : сборник научных трудов XV Международной конференции студентов, аспирантов и молодых ученых, 24-27 апреля 2018 г. Т. 2 : Химия. С. 168-170 |
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| Format: | Book Chapter |
| Language: | Russian |
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| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000634740 Перейти в каталог НБ ТГУ |
| Summary: | The stepwise proton-ligand stability constant of thiobarbituric acid anion was determined in an aqueous solution via pH-potentiometry at ionic strength I = 0,1 and temperature T = 20°C. Based on the absorption spectra analysis of thiobarbituric acid (H2L, H2thioBar) solutions in the UV-region at different pH values, it was shown that H2thioBar could exist in di-, mono-, and deprotonated forms. This latter fact is reflected in the particle yield H2L diagrams as a function of the aqueous solution pH. Besides, some geometric and physico-chemical characteristics ofH2thioBar were described by means of quantum chemical calculations. |
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| Bibliography: | Библиогр.: 3 назв. |
| ISBN: | 9785946217231 9785946217255 |