Abstract
A binuclear Zn(II) complex of formula {[Zn(BCPPO)H2O]•3C2H5OH}n (1) [H2BCPPO = Bis 4-carboxyphenyl phenyl phosphine oxide] has been synthesized and structurally characterized by single crystal X-ray diffraction, Powder X-ray diffraction (PXRD), Thermogravimetric analysis (TG), Elemental analysis (EA) and Infrared spectroscopy (IR). As revealed by the single crystal X-ray diffraction, in the binuclear Zn(II) complex, two paddle-wheel-type Zn2 units were connected by four BCPPO ligands to form one-dimensional chains. Their antibacterial activity was evaluated by using a minimal bactericidal concentration (MBC) benchmark. The binuclear Zn(II) complex shows excellent and long-term antibacterial activity against Escherichia coli and Staphylococcus aureus. In addition, the Photoluminescence properties of the binuclear Zn(II) complex was also investigated.
Highlights
Coordination polymers (CPs), which are assembled by metal ions/clusters and organic ligands, have attracted considerable attention owing to their fascinating structural topologies and potential applications in gas storage, separation, drug delivery, chemical absorption, luminescence, electronics, catalysis and their biological activity [1,2,3,4,5,6,7,8,9,10]
Metal/metal oxide nanoparticulate systems, as well as coordination polymers (CPs), have attracted increasing attention because CPs can be easy recycled to minimize the environmental problems and CPs with high surface area show more active sites resulting in excellent antibacterial activity [18,19,20,21]
The results indicated that the minimum bactericidal concentration of complex 1 against Escherichia coli, and Staphylococcus aureus is 0.0625 and 0.125 mg/mL, respectively, which are similar to those reported previously for Zn(II) complexes [29,30]
Summary
Coordination polymers (CPs), which are assembled by metal ions/clusters and organic ligands, have attracted considerable attention owing to their fascinating structural topologies and potential applications in gas storage, separation, drug delivery, chemical absorption, luminescence, electronics, catalysis and their biological activity [1,2,3,4,5,6,7,8,9,10]. Metal/metal oxide nanoparticulate systems, as well as coordination polymers (CPs), have attracted increasing attention because CPs can be easy recycled to minimize the environmental problems and CPs with high surface area show more active sites resulting in excellent antibacterial activity [18,19,20,21]
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