Synthesis, Characterization and Biological Activity of Mn(II)-Morin Complex

Shahabuddin Memon; Qadeer Khan Panhwar; Syeda Birjees Bukhari; Muhammad Iqbal Bhanger; Muhammad Qasim Samejo

doi:10.21743/pjaec.v17i2.266

Authors

Shahabuddin Memon National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan Author
Qadeer Khan Panhwar Dr. M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro, Sindh, Pakistan Author
Syeda Birjees Bukhari National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan Author
Muhammad Iqbal Bhanger National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan Author
Muhammad Qasim Samejo Dr. M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro, Sindh, Pakistan Author

DOI:

https://doi.org/10.21743/pjaec.v17i2.266

Keywords:

Metal, Flavonoid, Thermal, Antioxidant, Stoichiometry

Abstract

The article illustrates about the synthesis of Mn(II)-Morin complex in methanol solvent. The characterization of the complex was carried out using UV-visible, IR, 1H NMR spectroscopic techniques and thermal (i.e. TGA, DSC) techniques. The complex formation was deduced by UVvisible spectra showing the successive Mn-Morin complex formation occurring at 1:1 (metal/ligand) ratio stoichiometrically. The antioxidant capacity of the complex has also been evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging method. The work describes that flavonoids complexed with metal ions are more free radical scavengers than the free molecules.