A novel symmetrical bis-hydrazone Schiff-base probe, 2,2′-((1E,1′E)-((1,2-diphenylethane-1,2-diylidene)bis(hydrazine-2,1-diylidene))bis(methaneylylidene))bis(4-nitrophenol) (L), was successfully synthesized and comprehensively characterized using FTIR and NMR spectroscopy, ESI-MS, elemental analysis, and density functi...