Pentanuclear M^II–Mn^II (M = Ni and Cu) complexes of N₂O₂ donor ligands with a variation of carboxylate anions: syntheses, structures, magnetic properties and catecholase-like activities

Abstract

One new heterometallic nickel(II)-manganese(II) complex [(NiL1)2Mn3(C6H5CO2)6] (1) and two new copper(II)-manganese(II) complexes,[(CuL1)2Mn3(m-(NO2)C6H4CO2)6] (2) and [{CuL2(H2O)}2Mn3(m-(NO2)C6H4CO2)6] (3) have been synthesized and structurally characterized using [NiL1]/[CuL1]/[CuL2] as metalloligand (where H2L1 = N,N′-bis(2-hydroxynaphthyl-methylidene)-1,3-propanediamine,...

Catecholase activity assessment of In-Situ copper complexes derived from a novel Schiff base ligand

“…In recent times, mononuclear copper complexes were also reported to demonstrate catecholase activity [19]. Nonetheless, numerous other metal complexes are being studied to probe their catechol oxidase capacities [20][21][22].…”

Synthesis and crystal structures of two tri- and tetra-heterometallic Ni(ii)–Mn(ii)/Ni(ii)–Co(iii) complexes from two different Ni(ii)-containing metalloligands: effective catalytic oxidase activity and Schottky device approach

“…In terms of catalytic, magnetic, biomedical, gas storage, and sensing activities, the metal complexes with N, O donor tetradentate ligands have multiple applications that are significant for the study of chemical science. [1][2][3][4][5][6] In the past, numerous heterometallic complexes have been created by directly mixing a metal centre with an N 2 O 2 donor Schiff base ligand. [7][8][9] These Schiff bases are widely used in coordination chemistry research due to their simple synthesis procedures, one-pot condensation of a diamine with substituted salicylaldehyde derivatives, and their exceptional complexing power.…”