A study of the physico-chemical properties of 1,3,5-trihydroxy-1,3,5-triazin-2,4,6[1H,3H,5H]-trione
| Autor: | M. Jadrijević-Mladar Takač, Mladen Biruš, Ivan Butula, Ivan Kos, Mario Gabričević |
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| Rok vydání: | 2006 |
| Předmět: |
Thermogravimetric analysis
Aqueous solution Chemistry Organic Chemistry Potentiometric titration Carbon-13 NMR Analytical Chemistry Ion Inorganic Chemistry trihydroxytriazintrione acetyl and pivaloyl esters spectroscopic studies potentiometric titration thermogravimetric analysis Organic chemistry Chelation Spectroscopy Nuclear chemistry |
| Zdroj: | Journal of Molecular Structure. 782:24-31 |
| ISSN: | 0022-2860 |
| Popis: | Acetyl ( Ia ) and pivaloyl ( Ib ) triesters of the 1 N ,3 N ,5 N -trihydroxy-1,3,5-triazin-2,4,6[1 H ,3 H ,5 H ]-trione ( I ) were synthesised. The spectrophotometric and potentiometric investigation of I revealed a weak acidic properties of triprotonic acid (p K a1 =5.23, p K a2 =6.32, and p K a3 =7.93). The MS and TGA analyses of I indicated on hydroxyisocyanate as possible degradation product. The chelating ability of I with Fe(III)-ion was preliminary explored. IR measurements of aqueous solutions of I in the presence of Fe(III) ion showed the possible chelating ability of all hydroxamic moieties. The chemical structures and properties of investigated compounds were derived from the results of IR, 1 H and 13 C NMR, UV and MS spectrometric data, as well as thermogravimetric and potentiometric analysis. |
| Databáze: | OpenAIRE |
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