Antibacterial and catecholase activities of Co(III) and Ni(II) Schiff base complexes

Ghosh, Ayon Kanti; Mitra, Merry; Fathima, Aafreen; Yadav, H. D. S.; Choudhury, Angshuman Roy; Nair, Balachandran Unni; Ghosh, Rajarshi

doi:10.1016/j.poly.2016.01.015

Cited by 41 publications

(26 citation statements)

References 43 publications

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“…Cells were sustained at 37 ºC, 100 % relative humidity, 95 % air and 5 % CO2. Cell culture was maintained as per standard procedure [27]. Anticancer MTT assay of investigated ligand and [CuL]Cl2 were determined by utilizing the breast cancer cell culture.…”

Section: Methodsmentioning

confidence: 99%

Synthesis, Characterization, Antimicrobial and Anticancer Activities of 14-Membered Macrocyclic Schiff Base Metal Complexes

Palanimurugan¹,

Kulandaisamy²

2018

Asian J. Chem.

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New cationic 14-membered macrocyclic Schiff base metal complexes have been synthesized by condensation of benzalidene-curcuminyl-4-iminoantipyrine and 2,6-diaminopyridine. Structural characterization of the compounds was done using elemental analysis, molar conductivity, magnetic susceptibility, Mass, SEM, XRD, 1 H NMR, UV-visible, IR and EPR spectra. X-ray diffraction patterns suggested that the size of Schiff base is reduced due to chelation by the metal ion. Different morphologies of synthesized compounds were identified by SEM images. Magnetic moment values, UV-visible and IR spectral studies confirms the square planar geometry of chelates. However [VOL]Cl2 exists in octahedral geometry. Electron spin resonance spectra parameters of [CuL]Cl2 and [VOL]Cl2 complexes were well coinciding with proposed geometries. The in vitro biocidal activities of the compounds were done against some bacterial and fungal strains by disc diffusion method. Anticancer activity of Schiff base and copper complex were carried out by MTT method which reveals that the inhibition against the growth of breast cancer cell line culture for chelate is higher than Schiff base.

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Section: Methodsmentioning

confidence: 99%

Synthesis, Characterization, Antimicrobial and Anticancer Activities of 14-Membered Macrocyclic Schiff Base Metal Complexes

Palanimurugan¹,

Kulandaisamy²

2018

Asian J. Chem.

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“…Mononuclear cobalt complexes showing catecholase activity are relatively rare in the literature [64][65][66][67][68][69]. So, cobalt(III) complex 1 is one of the few examples of a mononuclear cobalt(III) complex having catecholase activity for which both the single crystal X-ray structure and k cat value have been determined.…”

Section: Mechanistic Aspects Towards the Catalytic Oxidation Of 35-dmentioning

confidence: 99%

Co(III) and Ni(II) complexes of an anthracene appended aroyl hydrazone: Synthesis, crystal structures, DNA binding and catecholase activity

et al. 2016

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“…Once the molecular structure of this enzyme in plants has been elucidated, various transition metal complexes have been tested as catalysts for catechol‐quinone conversion . Among them, catecholase activity of Cu (II), Mn (II, III, IV), Fe (III), Co (II/III), Ni (II) and Zn (II) complexes have reported …”

Section: Introductionmentioning

confidence: 99%

“…[20] Among them, catecholase activity of Cu (II), Mn (II, III, IV), Fe (III), Co (II/III), Ni (II) and Zn (II) complexes have reported. [21][22][23][24][25][26][27][28][29] In continuation of our interests in the preparation and applications of transition/lanthanide complexes, in this work, we prepared two triazine-based multi-dentate ligands (H 2 L 1 and H 2 L 2 ) and their homo-dinuclear Mn (II), mononuclear Ln (III) and hetero-dinuclear Mn (II)/ Ln (III) complexes (where Ln: Eu and La) ( Figure 1). The structure of the ligands and their metal complexes were characterized by the analytical and spectroscopic methods.…”

Section: Introductionmentioning

confidence: 99%

Triazine based Mn (II) and Mn (II)/Ln (III) complexes: Synthesis, characterization and catecholase activities

Çelik

Köse

2018

Applied Organom Chemis

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In the current work, two triazine‐based multidentate ligands (H2L1 and H2L2) and their homo‐dinuclear Mn (II), mononuclear Ln (III) and hetero‐dinuclear Mn (II)/Ln (III) (Where Ln: Eu or La) complexes were synthesized and characterized by spectroscopic and analytical methods. Single crystals of a homo‐dinuclear Mn (II) complex {[Mn (HL1)(CH3OH)](ClO4·CH3OH}2 (1) were obtained and the molecular structure was determined by X‐ray diffraction method. In the structure of the complex, each Mn (II) ion is seven‐coordinate and one of the phenolic oxygen bridges two Mn (II) centre forming a dimeric structure. The UV–Vis. and photoluminescence properties of synthesized ligands and their metal complexes were investigated in DMF solution and the compounds showed emission bands in the UV–Vis. region. The catecholase enzyme‐like activity of the complexes were studied for 3,5‐DTBC → 3,5‐DTBQ conversion in the presence of air oxygen. Homo‐dinuclear Mn (II) complexes (1 and 4) were found to efficiently catalyse 3,5‐DTBC → 3,5‐DTBQ conversion with the turnover numbers of 37.25 and 35.78 h−1 (kcat), respectively. Mononuclear Eu (III) and La (III) complexes did not show catecholase activity.

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Antibacterial and catecholase activities of Co(III) and Ni(II) Schiff base complexes

Cited by 41 publications

References 43 publications

Synthesis, Characterization, Antimicrobial and Anticancer Activities of 14-Membered Macrocyclic Schiff Base Metal Complexes

Synthesis, Characterization, Antimicrobial and Anticancer Activities of 14-Membered Macrocyclic Schiff Base Metal Complexes

Co(III) and Ni(II) complexes of an anthracene appended aroyl hydrazone: Synthesis, crystal structures, DNA binding and catecholase activity

Triazine based Mn (II) and Mn (II)/Ln (III) complexes: Synthesis, characterization and catecholase activities

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