Syntheses, structures and catalytic coupling reactions of two tetrazolate-based coordination polymers

Reactions of 5-(4-nitrophenyl)-1H-tetrazole (H(4-nptz)) and 5-(4-nitrobenzyl)-1H-tetrazole (H(4-nbtz)) with transition metals under solvothermal conditions yield two new coordination polymers, namely, [CuI(4-nptz)(CH3CN)]n (1) and [Zn(4-nbtz)2]n (2). Both of them were characterized by IR, thermogravimetric analysis, X-ray crystallography. Single crystal X-ray diffraction analysis reveals that 1 is of three-dimensional (3D) sqc184 type supramolecular framework, while 2 is of 3D sqc1 type supramolecular framework. In addition, solid state UV–Vis diffuse reflectance and photoluminescence properties of 1 and 2 are investigated. Furthermore, the catalytic properties for the coupling reaction of α-amino acids and bromobenzene were also investigated.

Graphical abstractTwo tetrazolate derivatives based coordination polymers are synthesized which both show three-dimensional hydrogen bonding supramolecular frameworks, and the property of them to catalyze the coupling reaction of α-amino acids and bromobenzene was also investigated.Figure optionsDownload full-size imageDownload as PowerPoint slide