Effect of organic dicarboxylate on the self-assembly of ternary mixed-ligand cobalt(II) coordination polymers: Syntheses, fluorescence and catalytic properties.

Two Co(II) coordination polymers, formulated as [Co(bix)(tbta)] n ( 1 ) and [Co(bix) 0.5 (aip)(H 2 O)] n ( 2 ) (bix = 1,4-bis(imidazol-1-ylmethyl)benzene, H 2 tbta = tetrabromoterephthalic acid, H 2 aip = 5-aminoisophthalic acid) have been synthesized and structurally characterized by single crystal X-ray diffraction. Complex 1 features a 3D three-fold interpenetrating diamond framework. Complex 2 is a 2D (3,4) network with 3,4L83 topology and extend into an unusual (5,6)-connected 3D supramolecular framework via intermolecular hydrogen bonds. In addition, fluorescence and catalytic performances of complexes 1 and 2 for the degradation of Congo red dye in a photo-Fenton-like process were investigated. [ABSTRACT FROM AUTHOR]