Determination of acidic constants of tetrafluoro-p-hydroquinone

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• 作者：Hassan Yousofian-Varzaneh ; Mansoor Namazian ; ^{namazian@yazd.ac.ir} ; Hamid R. Zare ; ^{hrzare@yazd.ac.ir} ; Shahriar Jahanbani ; Ali Benvidi
• 关键词：2 ; 3 ; 5 ; 6-Tetrafluorobenzene-1 ; 4-diol ; Cyclic voltammetry ; Chemometrics ; UV&ndash ; vis spectrophotometry ; Ab initio ; DFT ; G4MP2
• 刊名：Journal of Fluorine Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：193
• 期：Complete
• 页码：33-37
• 全文大小：660 K
• 卷排序：193

文摘

The acidic constants of tetrafluoro-p-hydroquinone have been determined experimentally. UV–vis spectroscopy with the application of Chemometrics are employed to determine the second acidic constant. The experimental values are reported as pKa1 = 6.4 and pKa2 = 10.0. The theoretical values (pKa1 = 6.3 and pKa2 = 9.4) are in good agreement with the experiments.