Coordination-Induced Syntheses of Two Hybrid Framework Iodides: A Thermochromic Luminescent Thermometer

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• 作者：Ren-Chun Zhang ; Jun-Jie Wang ; Jing-Chao Zhang ; Meng-Qi Wang ; Min Sun ; Feng Ding ; Dao-Jun Zhang ; Yong-Lin An
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：August 1, 2016
• 年：2016
• 卷：55
• 期：15
• 页码：7556-7563
• 全文大小：634K
• 年卷期：0
• ISSN：1520-510X

文摘

Two new 3D hybrid framework iodides, Hmta[(Hmta)Ag₄I₄] (1; Hmta = hexamethylenetetramine) and [(Hmta)₂Ag₈I₆]I₂ (2), have been synthesized under solvothermal conditions. Compound 1 consists of a neutral 3D framework built up from alternation of the tetrahedral Ag₄I₄ unit and Hmta with dia-b topology. Compound 2 features a 3D cationic framework with flu topology, constructed by cationic [Ag₈I₆]²⁺ units linked with Hmta. Tetrahedral Hmta plays crucial structure-directing roles in the formation of these 3D frameworks with high symmetry. The temperature-dependent photoluminescent measurement reveals luminescent thermochromism of the compounds, the emission maximum of which shows a gradual blue shift with increasing temperature. The results indicate that 1 is a promising wavelength- and intensity-dependent luminescent thermometer applicable in two different temperature ranges.