Anomalous Dielectric Features and Structural Implications in Gallic Acid鈥揑soniazid Cocrystal Mediated by Lattice Water

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• 作者：Ramanpreet Kaur ; Bharathi Ponraj ; Diptikanta Swain ; K. B. R. Varma ; Tayur N. Guru Row
• 刊名：Crystal Growth & Design
• 出版年：2015
• 出版时间：September 2, 2015
• 年：2015
• 卷：15
• 期：9
• 页码：4171-4176
• 全文大小：377K
• ISSN：1528-7505

文摘

An organic supramolecular ternary salt (gallic acid:isoniazid:water; GINZH) examined earlier for its proton conducting characteristics is observed to display step-like dielectric behavior across the structural phase transition mediated by loss of water of hydration at 389 K. The presence of hydration in the crystal lattice along with proton mobility between acid鈥揵ase pairs controls the 鈥渇erroelectric like鈥?behavior until the phase transition temperature.