A Hydrazone Schiff Base as a Fe(III) Sensor and Precursor to a Violet-Emissive Mn (II) Complex: Synthesis, Crystal Structure, Luminescence and DFT Studies

Key Points

• The research aims to synthesize a Schiff base ligand and evaluate its properties as a sensor and precursor for a luminescent manganese complex.
• Synthesis of Butanedihydrazide-bridged bis(4-methoxysalicylaldehyde) ligand (HL)
• Characterization using UV-vis spectroscopy
• Fluorescence spectroscopy for luminescence evaluation
• Structural analysis via crystal structure determination
• Computational studies using DFT
• The new ligand HL effectively senses Fe(III) ions
• The Mn(II) complex exhibits violet emission under UV light
• DFT studies support the observed luminescence properties
• Crystal structure analysis confirms the geometry of the ligand and complex