A new mixed-ligand coordination polymer based on V-shape carboxylate and pyridinyl co-linkers: Crystal structure,molecular docking,and antibladder cancer activity evolution

By applying the mixed-ligand approach, a new Cu(II)-containing coordination polymer [Cu₄(L)₄(4,4′-bpy)(H₂O)₂]·3H₂O ( 1 ) was successfully prepared through hydrothermal method using linear 4,4′-bipyridine (4,4′-bpy) and the V-shape carboxylate ligand 4,4′-(phenylazanediyl)dibenzoic acid (H₂L). The as-prepared complex 1 was determined by single-crystal X-ray crystallography and elemental analysis. Furthermore, we use the grinding method to prepare the samples of complex 1 in the nanoscale. In this research, the CCK-8 was performed first to detect the inhibitory activity of complex 1 on J82 bladder cancer cell viability. The apoptotic effect of complex 1 on J82 cancer cells was evaluated by Annexin V-FITC/PI staining. The reactive oxygen species (ROS) was also detected by detection kit in this study after complex 1 treatment. Beyond the experimental results, the molecular docking technique has been used to probe the anticancer activity that originated at the molecular level.