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چکیده
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Regular mesoporous compounds are a group of materials that have regular porosity in the range of 2-50 nanometer. Among them, silica mesoporous materials are the most considered by researchers and have wide applications, especially in the field of adsorbents and catalysts. Recently, block copolymers have been used to synthesize large mesoporous silica materials that exhibit Ia3d cubic symmetry [1-3]. KIT-6 is a three-dimensional symmetrical structure with a network of interconnected transverse channels. It has cavities with easy interchangeability, thick wall, high thermal stability, specific surface area and high cavity volume. Due to the three-dimensional structure of these materials between the cavities and the mentioned properties, it is expected that these compounds are better catalyst support than the other cavities compounds. In this project, Mesoporus KIT-6 is used as a mesoporous substrate fore perparation of heterogeneous catalysts. The synthesized mesoporus is first modified and then a copper- Schiffbase complex was stabilized on modified KIT-6. The prepared catalyst (Cu-Schiff base@KIT-6) was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray energy distribution analysis (EDX) as well as Fourier transform infrared spectroscopy (FT-IR). The catalytic activity of Cu-Schiff base@KIT-6 was investigated in some organic reactions such as synthesis of tetrazoles. Because, tetrazoles were used in drugs and they are used as analgesics, herbicides, antimicrobial, anti-proliferative, anti-inflammatory, and anticancer agents [4-6].
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