Stabilization of Mn(II) and Mn(III) in mononuclear complexes derived from tridentate ligands with N2O donors: Synthesis, crystal structure, superoxide dismutase activity and DNA interaction studies

Mn(II) complexes with sulfonamides as ligands.

“…Our findings clearly indicated that the cleavage reaction takes place via an oxidative mechanism. Similar results have been obtained for Mn(II) with a family of tridentate ligands derived from 2-(1-phenylhydrazinyl)pyridine [51].…”

DNA interaction, SOD, peroxidase and nuclease activity studies of iron complex having ligand with carboxamido nitrogen donors

“…This prompted us to examine the superoxide scavenging activity and DNA interaction studies of iron complex ligated to a tetradentate ligand, H 2 bpb which possesses two N am donors (shown in Scheme 1). We have also reported similar results of a series of manganese complexes derived from tridentate ligands having phenolato donor(s) [17]. Interestingly, N am and phenolato oxygen both prefer to stabilize higher oxidation states of metal [14,17].…”

Transition metal complexes with Girard reagent-based ligands. Part V. Synthesis, characterization and crystal structure of pentagonal-bipyramidal manganese(II) complex with 2,6-diacetylpyridine bis(Girard-T hydrazone)

“…Some of the synthetic manganese complexes act as superoxides [3][4][5] and NO dismutase [6], while the others show antifungal, [7-11], antibacterial [9-16], antioxidative [17] or anti-fertility [9] effects. So far, the syntheses of two Mn(II) complexes with the ligands of Girard's reagent T derivatives, viz.…”