Synthesis, structure and some properties of a manganese(II) benzoate containing diimine

• New monomeric manganese(II) benzoate containing 2,2′-bipyridine was synthesized and characterized.
• Compound is distorted octahedral and exhibits H-bonding, C–H···O and π–π stacking interactions.
• Results of DFT calculation are in compliance with experimental data.
• Compound shows moderate to appreciable antimicrobial activity.

A new monomeric manganese(II) benzoate complex containing nitrogen donor 2,2′-bipyridine, [Mn(OBz)2(bipy)(H2O)] (OBz = benzoate, bipy = 2,2′-bipyridine) has been synthesized from aqueous methanol medium and characterized by analytical, spectroscopic and single crystal X-ray diffraction studies. The compound exhibits moderate to appreciable antimicrobial activity. The complex crystallizes in space group P21/n. Mn(II) atom is ligated by two N atoms of bipyridine, three O atoms from a monodentate and a bidentate benzoate ligand and a water molecule forming distorted octahedral structure. The coordinated water molecule forms intramolecular hydrogen bonds and links the monomer molecules into hydrogen bonded dimer. The hydrogen bonded dimers are involved in intermolecular C–H···O and π–π stacking interactions. Density functional theory (DFT) computation was carried out to compute the frequencies of relevant vibrational modes and electronic properties, the results are in compliance with the experimentally obtained structural and spectral data.

New monomeric manganese(II) benzoate containing 2,2′-bipyridine has been synthesized and characterized by elemental analysis, spectroscopic and XRD studies. DFT studies were performed for vibrational and electronic properties of the complex, the results are in compliance with experimental data. Compound exhibits moderate to appreciable antimicrobial activity.Figure optionsDownload as PowerPoint slide