Spectral, NLO and antimicrobial studies of Co(II), Ni(II) and Cu(II) complexes of Schiff base ligands of 2-amino-6-nitrobenzothiazole

Kanagavalli, Chinnaraj; Sankarganesh, Murugesan; Raja, Jeyaraj Dhaveethu; Kalanithi, M.

doi:10.2298/jsc180521101k

Cited by 16 publications

(7 citation statements)

References 17 publications

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“…The value of the effective magnetic moment of the complex indicates that the complex [Cu(3-aminophenol)4](NO3)2•6H2O was paramagnetic and has a pair of unpaired electrons. Complex [Cu(3-aminophenol)4](NO3)2•6H2O has similar magnetic properties with other Cu(II) complexes which have μeff values between 1.70-2.20 BM [12,13].…”

Section: Magnetic Propertiesmentioning

confidence: 92%

Synthesis, characterization and antibacterial test of Tetrakis(3-Aminophenol) Copper(II)Nitrate Hexahydrate

Sarifudin

Hayati

Rahardjo

2022

J. Phys.: Conf. Ser.

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The purposes of this research were to synthesize and characterize of copper(II) with 3-aminophenol and determine its antibacterial activity. The complex was synthesized by refluxing a mixture of metal solution and ligand sulition in 1:4 mole ratio for one hour in methanol. The percentage of copper was 8.88% determined by Atomic Absorption Spectroscopy (AAS) therefore the predicted formula was Cu(3-aminophenol)4(NO3)2(H2O)6. Molar conductivity of the complex was measured by conductivity meter corresponding to 1:2 electrolyte. The thermal analysis of the formed complex indicated that the complex containing six water molecules as hydrates. The magnetic susceptibility measurement showed that the complexes was paramagnetic with μeff= 1.88 BM. Electronic spectra of the formed complex appeared at one transition peak on λ= 446 nm. The infrared spectra of the complex showed a shift of (N-H) band and (N-H) stretch group absorption in 3230 and 1497 cm−1 compared to 3-aminophenol at 3362 and 1594 cm−1. This fact indicated that the (N-H) functional groups were coordinated to the central metal ion. The plausible formula of the complex was [Cu(3-aminophenol)4](NO3)2.6H2O with a square planar structure. The complex showed no antibacterial activity againts Gram-positive bacteria (S. aureus, S. epidermidis) and Gramnegative bacteria (E. coli, P. aeruginosa).

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Section: Magnetic Propertiesmentioning

confidence: 92%

Synthesis, characterization and antibacterial test of Tetrakis(3-Aminophenol) Copper(II)Nitrate Hexahydrate

Sarifudin

Hayati

Rahardjo

2022

J. Phys.: Conf. Ser.

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“…In complex [Ni2(L)(phen)2]Cl2, the weak d-d transition bands are not observed probably because the bands are lost in the low energy tail of intense charge transfer band [18,19], whereas, in cobalt complexes [Co2(HL)(dmphen)2Cl4], [Co2(HL)(phen)2Cl4] the d-d transitions ascertained at 640 and 617 nm, respectively. These bands are assigned as a 4 T1g(F)→ 4 A2g(F) transition [20], usually the octahedral complexes contain three bands, but here only one band is appeared.…”

Section: Electronic Spectramentioning

confidence: 99%

Synthesis, characterization, docking and antimicrobial activity studies of binuclear Co(II) and Ni(II) complexes of bis aroylhydrazone and phenanthroline

K.¹,

Daravath²,

Narendrula³

et al. 2022

Bull. Chem. Soc. Eth.

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ABSTRACT. Schiff base (HL) N1,N3-bis(4-(methylthio)benzylidene)-5-nitrobenzene-1,3-dihydrazide (HL) has been prepared from condensation of 4-(methyl thio)benzaldehyde with 5-nitrobenzene-1,3-dihydrazide. Binucleated mixed ligand complexes of nickel(II) ([Ni2(L)(dmphen)2]Cl2, [Ni2(L)(phen)2]Cl2) and cobalt(II) ([Co2(HL)(dmphen)2]Cl2, [Co2(HL)(phen)2]Cl2) complexes have been synthesized from Schiff base (HL) and 1,10-phenanthroline/2,9-dimethyl-1,10-phenanthroline. The synthesized compounds have been characterized by elemental analysis, 1H-NMR, 13C-NMR, FT-IR, UV-Visible, magnetic moment, SEM, powder X-ray diffraction and molar conductivity measurements. Further, the Schiff base and its metal complexes have been investigated for fluorescence activity and molecular docking studies. In addition, Schiff base and its metal complexes were screened for antimicrobial activity against bacteria: Escherichia coli, Bacillus subtilis and fungi: Sclerotium rolfsii and Macrophomina phaseolina. KEY WORDS: Growth inhibitors, Ternary complex, Tuberculosis, Fluorescence activity, Crystal system Bull. Chem. Soc. Ethiop. 2021, 35(3), 499-511. DOI: https://dx.doi.org/10.4314/bcse.v35i3.3

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“…Inhibition was recorded by measuring the diameter of the inhibitory zone after the incubation period. The entire experiments were employed continuously and the total values were provided (Kanagavalli et al, 2019).…”

Section: Antimicrobial Activitymentioning

confidence: 99%

Synthesis, Characterization and Application of 1, 10 Phenanthroline and 2, 6 Pyridine Dicarboxamide Ligands Supported Five Coordinated Cu (II) System for DNA Binding and Antibacterial Activity

Karthik¹,

Ujjainkar²

2022

Int.J.Curr.Microbiol.App.Sci

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The copper (II) complex [Cu(1,10-phen)(2,6-pyridinedicarboxamide)](NO3)2 has been synthesized and characterized by Fourier transform infrared spectroscopy (FT-IR), Ultraviolet-visible spectroscopy (UV), Electron paramagnetic resonance spectroscopy (EPR) and Photoluminescence (PL) analysis. The copper complex was connected to two sides, 1,10-phenanthroline and 2,6 py-dicarboxamide ligands, providing a five-coordinate Cu (II) complex. The commercial heterocyclic base coordinated copper metal complex was found to have antimicrobial activity against Gram-positive and gram-negative bacteria. It is noted that the commercial ligand with a copper metal complex was found to be more biologically active, and the DNA-binding properties of the copper complex were investigated by UV, PL, and cyclic voltammetry measurements. The obtained results indicate that the Cu (II) complex binding in DNA through an intercalation mode and the binding constant (Kb) value of the complex as 1.9 × 104 M−1, respectively.

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Spectral, NLO and antimicrobial studies of Co(II), Ni(II) and Cu(II) complexes of Schiff base ligands of 2-amino-6-nitrobenzothiazole

Cited by 16 publications

References 17 publications

Synthesis, characterization and antibacterial test of Tetrakis(3-Aminophenol) Copper(II)Nitrate Hexahydrate

Synthesis, characterization and antibacterial test of Tetrakis(3-Aminophenol) Copper(II)Nitrate Hexahydrate

Synthesis, characterization, docking and antimicrobial activity studies of binuclear Co(II) and Ni(II) complexes of bis aroylhydrazone and phenanthroline

Synthesis, Characterization and Application of 1, 10 Phenanthroline and 2, 6 Pyridine Dicarboxamide Ligands Supported Five Coordinated Cu (II) System for DNA Binding and Antibacterial Activity

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