Structural aspects, spectroscopic and third order nonlinear optical properties of mixed ligand complexes from NNO tridentate Schiff base: Crystal structure of a rare proton bridged Ni(II) complex

Jayendran, Manjari; Ponnan, Sajin; Begum, Pakiza; Kurup, M.R. Prathapachandra

doi:10.1016/j.ica.2019.118968

Cited by 8 publications

(2 citation statements)

References 47 publications

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“…Therefore, it is important to investigate the relationship between ligands and the binding modes of the metals that form the complexes. [1] Mixed ligand complexes consisting of two or more different ligands have been widely explored because they can provide new materials with the useful magnetic exchange, [7][8][9][10] electrical conductivity, [11,12] photoluminescence, [13][14][15] nonlinear optical, [16,17] metallo-enzyme and antimicrobial activity properties. [18][19][20][21] Due to the presence of several heteroatoms acting as donor atoms, thiazolylazo dyes are an important class of organic complexing reagents.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Electrochemical and Antioxidant Properties of New Thiazolylazo‐based Mixed Ligand Metal Complexes

et al. 2023

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The complexes of 4‐(2‐thiazolylazo)resorcinol (TAR) and 2,2′‐bipyridine (bpy), [M(bpy)(TAR)(H2O)]AcO [(M=CoII, CuII, ZnII] and [Mn(bpy)(TAR)AcO] were synthesized and their structure was determined by elemental analysis, thermal analysis (DTA/TGA), IR spectroscopy, molar conductivity, and magnetic measurements. The ligand 4‐(2‐thiazolylazo)resorcinol coordinated to metalII ions via azo and thiazolyl group nitrogens and one oxygen atom of resorcinol, while 2,2′‐bipyridine also contributed two coordination bonds via its nitrogen atoms. The electrochemical profile of the compounds was investigated by cyclic voltammetry (CV) which confirmed their electrochemical activity. The results obtained by CV method pointed out that the electrode reactions were diffusion controlled. The total antioxidant capacities of the ligands and complexes were evaluated by using cupric reducing antioxidant capacity (CUPRAC) method. The complexes displayed more antioxidant activity than their ligands. The Trolox equivalent antioxidant activity (TEAC) values of all complexes exhibited more higher and approximate values to Trolox but bpy ligand did not show any activity.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Electrochemical and Antioxidant Properties of New Thiazolylazo‐based Mixed Ligand Metal Complexes

et al. 2023

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“…1,2 Transition-metal complexes are used as organic light-emitting diodes (OLEDs) because of their optoelectronic properties. 3–7 Schiff bases and their transition metal complexes are also used as photometric materials in optical computers and display systems. 8 In particular, Ni(II), Pt(II), and Zn(II) complexes of Schiff bases have found widespread use in organic optoelectronics because of their NLO properties.…”

Section: Introductionmentioning

confidence: 99%

Solvent effects on the electronic and optical properties of Ni(II), Zn(II), and Fe(II) complexes of a Schiff base derived from 5-bromo-2-hydroxybenzaldehyde

Buldurun

Tanış

Turan

et al. 2021

Journal of Chemical Research

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In this article, the electronic, optical, and charge transfer properties of a Schiff base ligand prepared using 5-bromo-2-hydroxybenzaldehyde and ethyl 6-acetyl-2-amino-4,5,6,7-tetrahydrothieno[2,3- c]pyridine-3-carboxylate (C19H19BrN2O4S) and its Fe(II) (C19H30BrN2O10SClFe), Ni(II) (C19H28BrN2O9SClNi), and Zn(II) (C19H28BrN2O9SClZn) complexes are described based on different solvents environments and supported by theoretical calculations. Theoretical calculations are carried out using density functional theory (DFT/UB3LYP/LANL2DZ). The optical densities, optical band gaps, and refractive indices of the ligand and its Fe(II), Ni(II), and Zn(II) complexes in different solvent environments are obtained. The reorganization energies are calculated to determine the charge transfer rate of the studied compounds using both experimental and theoretical data. These experimental and theoretical results show that the ligand and its metal complexes can be used for optoelectronic applications and charge transfer materials in organic light-emitting diode applications.

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Mixed ligand Cu(II) complexes of an unsymmetrical Schiff base ligand and N-donor heterocyclic co-ligands: Investigation of the effect of co-ligand on the antibacterial properties

Albobaledi

Esfahani

Behzad

et al. 2020

Inorganica Chimica Acta

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Structural aspects, spectroscopic and third order nonlinear optical properties of mixed ligand complexes from NNO tridentate Schiff base: Crystal structure of a rare proton bridged Ni(II) complex

Cited by 8 publications

References 47 publications

Synthesis, Electrochemical and Antioxidant Properties of New Thiazolylazo‐based Mixed Ligand Metal Complexes

Synthesis, Electrochemical and Antioxidant Properties of New Thiazolylazo‐based Mixed Ligand Metal Complexes

Solvent effects on the electronic and optical properties of Ni(II), Zn(II), and Fe(II) complexes of a Schiff base derived from 5-bromo-2-hydroxybenzaldehyde

Mixed ligand Cu(II) complexes of an unsymmetrical Schiff base ligand and N-donor heterocyclic co-ligands: Investigation of the effect of co-ligand on the antibacterial properties

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