Abstract:

Three zinc benzimidazolate frameworks with different topological network structures, sql, SOD, and RHO, were prepared using different solvents and templates. Encapsulation of perylene in these three metal-azolate frameworks was explored to prepare novel porous materials with unique luminescent and fluorescent sensing properties. Product purities were determined using powder X-ray diffraction, and the luminescent properties were analyzed via fluorescence spectrometry. The loading amount of perylene was determined using UV-Vis spectroscopy. Advantages of this experimental design include a simple synthesis, high success rate, short reaction time, mild reaction conditions, and environmentally friendly by-products, indicating high feasibility as a teaching experiment for undergraduates. Through the preparation, characterization, and application of metal-azolate framework materials, students can easily understand coordination chemistry synthesis and porous material characteristics. Additionally, the combination of the synthesis of porous framework materials and the packaging of fluorescent molecules may make the experiment more interesting and inspire students to explore material performance and applications.

Key words: Zinc benzimidazole framework, Rapid synthesis, Template, Perylene, Fluorescence sensing