Synthesis, Crystal Structure, Thermal Stability, Magnetic Property, and Biological Activity of a New Copper(II) Complex Based on 1,2,4-Benzenetricarboxylic Acid and 2,2′-Bipyridine

Based on an asymmetric 1,2,4-benzenetricarboxylic acid (H 3 btc) and 2,2′-bipyridine (bpy), a new Cu II complex, Cu 2 (H 2 btc) 4 (bpy) 2 · 8H 2 O ( 1 ), was synthesized and structurally characterized by single-crystal X-ray diffraction, hirshfeld surface (HS) analysis, IR spectroscopy, powder X-ray analysis, thermal gravimetry analysis (TGA), magnetic susceptibility, EPR measurement, and UV/Vis spectrometry. Complex 1 shows a dinuclear copper structure. The Cu II of each dinuclear moiety are in a slightly distorted square-pyramidal environments. Magnetic susceptibility of 1 shows a ferromagnetic coupling between both metal atoms. The interaction of 1 with bovine serum albumin (BSA) is investigated using UV/Vis, fluorescence spectroscopic methods. The Cu II complex shows strong binding propensity in albumin binding study.