A new 3D cadmium coordination polymer containing 3-amino-1H-1,2,4-triazole: Synthesis, structure, and property

作者：Liu, Bing^*; Wen, Mei-Ting; Shen, Mei-Lin; Miao, Wei-Ni; He, Ting-Ting; Xu, Ling^*

来源：Inorganic Chemistry Communications, 2018, 88: 38-41.

DOI：10.1016/j.inoche.2017.11.016

• Coordination polymer
• 1,2,4-Triazole
• Fluorescence
• Crystal structure

Cadmium acetate (Cd(Ac)(2)) reacted with 3-amino-1H-1,2,4-triazole (Hatr) under hydrothermal conditions to produce a 3D framework [Cd-5(atr)(7)(Ac)(3)(H2O)(2)] (1), which is constructed through the interweaving of the 2D (4'4) layers with the 1D zigzag [Cd-3(atr)(2)(H2O)] chains. Compound 1 was isolated with high phase purity confirmed by PXRD. TGA indicates the thermal decomposition temperature of compound 1 at 343 degrees C, showing the framework of 1 has high thermal stability. The solid state fluorescence of 1 at ambient temperature exhibits a blue emission at 419 nm, assigned to intraligand pi -> pi* transition of 1,2,4-triazole ring, which is similar to that of free Hatr with emission at 427 nm. The temperature-dependent fluorescence of 1 shows a thermal quenching with 43.78% quenching rate at 200 degrees C, and the fluorescent intensity can be completely recovered as the temperature decreased to ambient temperature.

• 出版日期2018-2
• 单位陕西科技大学; 陕西师范大学