Structural variability, Hirshfeld surface analysis and properties of three Zn(II) coordination polymers based on flexible bis(thiabendazole) and aromatic dicarboxylate co-ligands.

Three zinc(II) coordination polymers (CPs), {[Zn(L) 0.5 (tbta)]·0.5 L·2.5H 2 O} n ( 1 ), {[Zn(L) 0.5 (mip)]·H 2 O} n ( 2 ) and {[Zn(L) 0.5 (npht)(H 2 O)]·0.5H 2 O} n ( 3 ) (L = 1,4-bis(thiabendazole)butane, H 2 tbta = tetrabromoterephthalic acid, H 2 mip = 5-methylisophthalic acid, H 2 npht = 3-nitrophthalic acid) have been hydrothermally synthesized and structurally characterized. Single-crystal X-ray diffraction analyses reveal that CP 1 shows a 2D honeycomb-like (6, 3) network. CP 2 displays a hybrid helical chain, and further assembled into a 2D supramolecular layer via weak C H⋯O hydrogen bonding interactions, whereas CP 3 is a right-handed helical chain and finally extended into a 3D supramolecular structure by classical O H⋯O hydrogen bonds and π – π stacking interactions. Further, the Hirshfeld surfaces, fingerprint plots, fluorescence properties and catalytic performances of three CPs for the degradation of methyl orange dye in a Fenton-like process have been investigated. [ABSTRACT FROM AUTHOR]