Synthesis, Characterization and Catecholase Activity of Cobalt (Ii) Complexes With Phenol Based N2o2 Chelating Ligand

Abstract

Two mononuclear octahedral Co(II) complexes [Co(H2L)(PhCOO)2] and [Co(H2L)(C8H4O4Na)2] using H2L (N,N'dimethyl-N,N'-bi(2-hydroxy-3,5-dichlorobenzyl)-ethylenediamine) as a facially coordinating sterically constrained N2O2 ligand have been synthesized and characterized. [Co(H2L)(PhCOO)2] shows catecholase activity in methanol at room temperature.

Synthesis of (E)-4-Methyl-2-((Phenethylimino (Phenyl)methyl)phenol and Its Transition Metal Complexes, Characterization and Electrical Conductivity Study of Complexes

“…27 (2) FT-IR Spectra FT-IR spectral data of HMBPE and its metal complexes are given in The medium intensity band observed at 1325 cm -1 due to phenolic C-O stretching is shifted to lower frequencies in the complexes indicates coordination through deprotonated phenolic oxygen atom. [30][31][32] The appearance of new bands in complexes in the range of 529-584 cm -1 and 468-496 cm -1 has been assigned M-O and M-N stretching. 33,34 The bands in the range of 3367-3445 cm -1 in complexes are due to υ(H 2 O) suggesting hydrated complexes.…”

Unsymmetric Compartmental Ligands for Metallobiosite Modelling: A Mini Review

“…Biological relevance and applications of transition metal complexes are well documented. [53][54][55] Binuclear complexes have attracted particular interests focused on the modeling of metallobiosites and on the cooperativity of the neighboring metals in promoting reactions. 56 Cooperative interactions between the two adjacent metal centers are important in bioinorganic model studies, organic synthesis and catalysis and give rise to interesting physicochemical properties.…”

SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL ACTIVITY OF Mn(II),Fe(II), Ni(II),Co(II) AND Zn(II) COMPLEXES OF SCHIFF BASE DERIVED FROM 2,2- DIMETHYLPROPANE 1, 3-DIAMINE AND 5-CHLORO ISATIN

“…[1][2][3] Isatin (1H-Indoline-2, 3-dione) is an endogenous compound isolated in 1841 by Erdman and Laurent as a product from oxidation of indigo by nitric acid & chromic acid and reported to possess a wide range of activities involving the central nervous system. [4][5][6][7] Isatin and its Schiff base derivatives and Mannich bases have been reported to possess a variety of biological and pharmacological activities as antimicrobial, 8 antidepressant , cytotoxicity, analgesic, anticonvulsant, insecticides, DNA Binding, 9 anticancer, tuberculostatic, and anti-inflammatory, antibacterial, antifungal, antiviral, anti-HIV, [10][11][12][13][14][15][16][17][18][19] and antiheliminthic activities. 20,21 These complexes not only play an important role in the development of coordination chemistry related to catalysis and enzymatic reactions, magnetism and molecular architectures, [22][23][24] but also exhibit interesting biological activities.…”