Synthesis, spectroscopic characterization (FT-IR, NMR, UV-Vis), DFT study, antibacterial and antioxidant in vitro investigations of 4,6-bis((E)-1-((3-(1H-imidazol-1-yl)propyl)imino)ethyl)benzene-1,3-diol

•4,6-bis((E)-1-((3-(1H-imidazol-1-yl)propyl)imino)ethyl)benzene-1,3-diol was synthetized and characterized.•Density functional method, B3LYP/6-31G(d) level have been used for theoretical study.•The experimental results were well-supported by theoretical calculations.•The synthetized bis Schiff base exhibit good antibacterial and antioxidant activities.