Syntheses, Structures and Photocatalytic Activities of Coordinated Supramolecular Complexes Containing Triazin-pyrazole Ligand

In the mixture of ethanol and water, two complexes [Co(Bpz * eaT) (H2O)(3)]center dot 2H(2)BTC center dot 2H(2)O (1) and [Cu(Bpz * eaT) (H2O)(3)]center dot 2H(2)BTC center dot CH3CH2OH center dot H2O (2) were designed and synthesized via the reaction of metal salts and ligands H3BTC(benzene-1,3,5-tricarboxylic acid) and Bpz * eaT[2,4-bis(3,5-dimethylpyrazol-1-yl)-6-diethylamino-1, 3, 5-triazine]. The complexes were characterized by elemental analysis, IR spectrometry, UV-Vis spectrometry, thermal gravimetric analysis, X-ray powder and X-ray single crystal diffraction analysis. Structural analysis reveals that both complexes 1 and 2 form distorted octahedral geometry, and complex 1 has a 3D network structure and complex 2 has a 2D layer structure via hydrogen bonding connection. Furthermore, the photocatalytic performances of complexes 1 and 2 were studied and the result revealed that the photocatalytic activity of complex 1 was better than that of complex 2.