Synthesis and characterization of chromium(III) Schiff base complexes: Antimicrobial activity and its electrocatalytic sensing ability of catechol

Kumar, S. Praveen; Suresh, R.; Giribabu, K.; Manigandan, R.; Munusamy, S.; Muthamizh, S.; Narayanan, Vijaykrishnan

doi:10.1016/j.saa.2014.12.012

Cited by 38 publications

(6 citation statements)

References 38 publications

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“…3,4 Moreover, CC is hazardous to humans and animals as its prolonged exposure causes depression of central nervous system, mutagenesis and cancerous alteration. 5 Thus it has been classified as a probable human carcinogen by International Agency for Research on Cancer (IARC). 6 Hence, an accurate estimation of assessment of CC in environmental samples is essential.…”

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confidence: 99%

Non-Enzymatic Selective Determination of Catechol Using Copper Microparticles Modified Polypyrrole Coated Glassy Carbon Electrodes

Aravindan

Preethi

Sangaranarayanan

2017

J. Electrochem. Soc.

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A selective non-enzymatic sensor for catechol using Copper -Polypyrrole composite modified glassy carbon electrode (Cu-PPy/GCE) is reported. The modified electrode was prepared in a facile manner by a two step potentiostatic process of electropolymerization of pyrrole on the bare electrode, followed by deposition of Copper. The modified electrodes were characterized using electron microscopic, spectroscopic and electrochemical techniques. The selective non-enzymatic detection of catechol was analyzed through differential pulse voltammetry and chronoamperometry. Under optimized experimental conditions, the Cu-PPy/GCE was found to span a wide linear range from 0.05 to 1000 μM with a lower limit of detection (3σ/m) of 0.010 μM using chronoamperometry. The selectivity of the modified electrode was also investigated in the presence of typical interfering agents like hydroquinone, ascorbic acid, etc. The practical feasibility of the proposed method was demonstrated through the estimation of catechol in tap water samples.

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confidence: 99%

Non-Enzymatic Selective Determination of Catechol Using Copper Microparticles Modified Polypyrrole Coated Glassy Carbon Electrodes

Aravindan

Preethi

Sangaranarayanan

2017

J. Electrochem. Soc.

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“…A single-crystal X-ray diffraction study reveals that 1 crystallizes in the triclinic space group P -1, with two crystalgraphic independent Cr( L 1 ) 3 molecules in the asymmetric unit. Three 8-hydroxyquinolinate ligands L 1 chelate to one Cr centers in the mer -geometry to form a propeller-like Cr( L 1 ) 3 , thus, the Cr centers adopt an octahedral coordination environment, which was confirmed by the paramagnetic S = 3/2 system ( d 3 electron configuration) of Cr center in complex 1 (see Figure 1) [29,30]. In the octahedral geometry, the Cr-O, Cr-N distances are fall in the range of 1.9176(2)–1.949(2) Å and 2.102(2)–2.186(2) Å, respectively (See Table 2), which are comparable with those reported [26].…”

Section: Resultsmentioning

confidence: 99%

Two 8-Hydroxyquinolinate Based Supramolecular Coordination Compounds: Synthesis, Structures and Spectral Properties

et al. 2017

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Two new Cr(III) complexes based on 2-substituted 8-hydroxyquinoline ligands, namely [Cr(L1)3] (1), (HL1=(E)-2-[2-(4-nitro-phenyl)-vinyl]-8-hydroxy-quinoline) and [Cr(L2)3] (2), (HL2=(E)-2-[2-(4-chloro-phenyl)vinyl]-8-hydroxy-quinoline), were prepared by a facile hydrothermal method and characterized thoroughly by single crystal X-ray diffraction, powder X-ray diffraction, FTIR, TGA, ESI-MS, UV-Visible absorption spectra and fluorescence emission spectra. Single crystal X-ray diffraction analyses showed that the two compounds featured 3D supramolecular architectures constructed from noncovalent interactions, such as π···π stacking, C-H···π, C-H···O, C-Cl···π, C-H···Cl interactions. The thermogravimetric analysis and ESI-MS study of compounds 1 and 2 suggested that the Cr(III) complexes possessed good stability both in solid and solution. In addition, the ultraviolet and fluorescence response of the HL1 and HL2 shown marked changes upon their complexation with Cr(III) ion, which indicated that the two 8-hydroxyquinolinate based ligand are promising heavy metal chelating agent for Cr3+.

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“…In FT-IR spectra of ligand a sharp absorption bands appeared at about 1599 cm -1 which may be assigned for the combination of -CH=N. This peak was shifted in the S1-S4, complexes and appeared in the range 1518-1565 cm -1 , clearly indicating coordination of metal through imine nitrogen 23,24 . A representative FT-IR spectrum of complex S2 is given in Figure 6.…”

Section: Characterization Of Complexesmentioning

confidence: 93%

Synthesis, Characterization, In Vitro Anti-diabetic, Antibacterial and Anticorrosive Activity of Some Cr(III) Complexes of Schiff Bases Derived from Isoniazid

2018

Chem Sci Trans

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Four complexes of Cr(III) were synthesized with Schiff bases ligands derived from isonicotinyl hydrazide with benzaldehyde/ p-chlorobenzaldehyde. The ligands and complexes were characterized by elemental analysis, molar conductance, magnetic moment, FT-IR, 1 H NMR, 13 C{ 1 H} NMR and electronic spectroscopy. The molecular structure and different quantum chemical parameters such as dipole moment and polarizability, were calculated using the B3LYP basis set density functional theory (DFT) with the standard 6-311+G(d, 2p) level. The calculated HOMO and LUMO energies show that charge transfer occurs within the molecules. Ligands and complexes were screened for in vitro anti-diabetic and antibacterial activity. Anticorrosion activity of complexes was also studied by weight loss method.

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Synthesis and characterization of chromium(III) Schiff base complexes: Antimicrobial activity and its electrocatalytic sensing ability of catechol

Cited by 38 publications

References 38 publications

Non-Enzymatic Selective Determination of Catechol Using Copper Microparticles Modified Polypyrrole Coated Glassy Carbon Electrodes

Non-Enzymatic Selective Determination of Catechol Using Copper Microparticles Modified Polypyrrole Coated Glassy Carbon Electrodes

Two 8-Hydroxyquinolinate Based Supramolecular Coordination Compounds: Synthesis, Structures and Spectral Properties

Synthesis, Characterization, In Vitro Anti-diabetic, Antibacterial and Anticorrosive Activity of Some Cr(III) Complexes of Schiff Bases Derived from Isoniazid

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