Hydrothermal syntheses of two novel coordination polymers based on tetranuclear metal cluster constructed by 1,3,5-Tris(2H-tetrazol-5-yl)benzene ligand

Two new coordination polymers, namely [Zn3(BTT)(μ3-OH)3] (1), and [Mn3(BTT)(μ3-OH)3] (2), where H3BTT = 1,3,5-Tris(2H-tetrazol-5-yl)benzene, have been synthesized under hydrothermal conditions and characterized by single crystal X-ray diffraction. The structure of compound 1 can be described as tetranuclear zinc cluster linked with zinc (Zn2II) atoms to form a 2D layer, and the adjacent parallel layers bridged by the rigid H3BTT ligand to show 3D network. Taking Mn ions in replace of Zn ions, a new compound 2 is successfully obtained which is isostructural with 1. In addition, photoluminescent property for 1, magnetic properties for 2 and thermogravimetric analyses for 1 and 2 are investigated in detail.

Graphical abstractTwo novel isostructural compounds, namely [Zn3(BTT)(μ3-OH)3] (1), [Mn3(BTT)(μ3-OH)3] (2) by combining polytetrazolate rigid ligand. The μ3-OH group linked MII (Zn and Mn) atoms to form interesting 2D layers structure and the BTT bridged adjacent layers to give a 3D network with tetranuclear metal–oxygen clusters and 16-membered metallocycles.Figure optionsDownload full-size imageDownload as PowerPoint slide