scholarly journals Some Metal Ions Complexes Derived From Schiff Base Ligand with Anthranillic Acid: Preparation, Spectroscopic and Biological Studies

2020 ◽  
Vol 17 (1) ◽  
pp. 0099
Author(s):  
Lekaa khalid Karem
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Magnetic Moment ◽  
Primary Amine ◽  
Molar Conductivity ◽  
Spectroscopic Methods ◽  
Geometrical Shape ◽  
Biological Studies ◽  
Different Types ◽  
Uv Visible

This search includes the preparation of Schiff base ligand (SB) from condensation primary amine with vanillin. The new ligand was diagnosed by spectroscopic methods as Mass, NMR, CHN and FTIR. Ligand complexes were mixed from new (SB) and Anthranillic acid (A) with five metal (II) chlorides. The preparation and diagnosis were conducted by FTIR, CHN, UV-visible, molar conductivity, atomic absorption and magnetic moment. The octahedral geometrical shape of the complexes was proposed. The ligands and their new complexes were screened with two different types of bacteria.

A Novel and Cost Effective Isatin Based Schiff Base Fluorophore: Highly Efficient “Turn-Off” Fluorescent Sensor for the Selective Detection of Cysteine in Aqueous Medium

2021 ◽  
Author(s):  
SAVITHA D P ◽  
Deepa Sebastian ◽  
Anjali Krishna G ◽  
P. V. Mohanan
Keyword(s):  
Mass Spectrometry ◽  
Schiff Base ◽  
Aqueous Medium ◽  
13C Nmr ◽  
Schiff Base Ligand ◽  
Fluorescent Sensor ◽  
Cost Effective ◽  
Spectroscopic Methods ◽  
Selective Detection ◽  
Uv Visible

A novel schiff base ligand 3-(2-Amino-4, 5-dimethyl-phenylimino)-5-phenyl-1, 3-dihydro-indol-2-one (MPD 5MI) and was characterized using spectroscopic methods including UV visible, Infrared, 1H-NMR, 13C-NMR and mass spectrometry. The essential fluorescence properties such...

scholarly journals New Platinum(II) Complex Containing Asymmetric Tetra Dentate Schiff Base Ligand Synthesis, Characterization and DFT Calculation

2012 ◽  
Vol 9 (4) ◽  
pp. 2114-2118 ◽  
Author(s):  
Alireza Akbari ◽  
Iran Sheikhshoaie ◽  
Lotfali Saghatforoush ◽  
S. Yousof Ebrahimipour ◽  
Zohreh Amiri
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Dft Calculation ◽  
Structural Parameters ◽  
Platinum Complex ◽  
Molar Conductivity ◽  
Cationic Complex ◽  
Square Planar ◽  
Optimized Geometries ◽  
Good Agreement

The tetra dentate neutral (E)-4-nitro-2-((2-(2-(pyridin-2-yl) ethylthio) ethylimino) methyl) phenol, (pytaO2NSalH), Schiff-base ligand was synthesized using 1-(2-pyridyl)-3-thia-s-aminopentane (pyta) and 5-NO2salicylaldehyde. Then the related square planar Pt (II) cationic complex, [Pt (NSNO)] Cl, was synthesized using PtCl2(SMe2)2as precursor complex. The nature of the pytaO2NSalH and its platinum complex were determined by the elemental analysis, molar conductivity and spectrochemical (IR, UV–vis,1HNMR) techniques. In addition, the fully optimized geometries and vibration frequencies of them together were calculated using the ADF 2009.01 package. Structural parameters are in good agreement with the experimental data. The calculated and experimental results confirmed the suggested structures for the ligand and complex.

scholarly journals Synthesis, Characterization and Thermal Studies of Fe(II), Co(II), Ni(II) and Cu(II) Complexes with bis-(4-benzylidenamino-phenyl)-methane Schiff base ligand

2021 ◽  
Vol 2063 (1) ◽  
pp. 012004
Author(s):  
Atared F. Hassan ◽  
Hiba H. Sabah ◽  
Afaq A. Turki
Keyword(s):  
Schiff Base ◽  
Metal Ions ◽  
General Formula ◽  
Elemental Analysis ◽  
Schiff Base Ligand ◽  
Thermal Studies ◽  
Molar Conductivity ◽  
Conductivity Measurements ◽  
Infra Red ◽  
Thermal Stable

Abstract A new series of Co(II), Fe(II), Cu(II) and Ni(II) complexes of Bis–(4-benzylidenamino-phenyl)-methane (L) have been prepared and characterized. The complexes conform to general formula [CoL(H2O)3] Cl2, [FeL(H2O)5]SO4.2H2O, [CuL(H2O)5] NO3 and [NiL(H2O)3Cl2], Infra red spectra and elemental analysis reveal uni-dentate coordination of Schiff base to metal ions. Molar conductivity measurements show that complexes (I, III) behave as 2:1 electrolyte while complex (II) behave as 1:1 electrolyte. The thermal studies for complexes shows that the complexes are thermal stable.

scholarly journals Metal-Based Scaffolds of Schiff Bases Derived from Naproxen: Synthesis, Antibacterial Activities, and Molecular Docking Studies

Molecules ◽  
2019 ◽  
Vol 24 (7) ◽  
pp. 1237 ◽  
Author(s):  
Muhammad Shaheen ◽  
Shanshan Feng ◽  
Mehwish Anthony ◽  
Muhammad Tahir ◽  
Mubashir Hassan ◽  
...  
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Schiff Base Ligand ◽  
Antibacterial Activities ◽  
Docking Studies ◽  
Computational Docking ◽  
Square Planar ◽  
Uv Visible ◽  
Xrd Techniques ◽  
Bioactivity Profile

We report here the synthesis, characterization, and antibacterial evaluation of transition metal complexes of Ni, Cu, Co, Mn, Zn, and Cd (6a–f), using a Schiff base ligand (5) derived from naproxen (an anti-inflammatory drug) and 5-bromosalicylaldehyde by a series of reactions. The ligand and the synthesized complexes were characterized by elemental analysis, UV-Visible, FTIR, and XRD techniques. The ligand 5 behaves as a bidentate donor and coordinates with metals in square planar or tetrahedral fashion. In order to evaluate its bioactivity profile, we screened the Schiff base ligand and its metal complexes (6a–f) against different species of bacteria and the complexes were found to exhibit significant antibacterial activity. The complexes showed more potency against Bacillus subtilis as compared to the other species. Moreover, we modeled these complexes’ binding affinity against COX1 protein using computational docking.

Synthesis, Characterisation and Antimicrobial Activity of Manganese(II), nickel(II), cobalt(II), Copper(II) and Zinc(II) Complexes of a Binucleating Tetradentate Ligand

2002 ◽  
Vol 2002 (11) ◽  
pp. 529-531 ◽  
Author(s):  
Abdou Saad El-Tabl
Keyword(s):  
Antimicrobial Activity ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Magnetic Moment ◽  
Thermal Analyses ◽  
Antimicrobial Activities ◽  
Esr Spectra ◽  
Tetradentate Ligand ◽  
Tetradentate Schiff Base ◽  
Elemental Analyses

The binucleating, tetradentate Schiff base ligand (H2L) has been synthesised by condensation of bis-(4-aminophenyl)-methane with salicyladehyde. The resulting metal(II) complexes [metal = Mn||, Ni||, Co||, Cu|| and Zn||] have been characterised by elemental analyses, molar conductances, magnetic moment, IR, UV-vis spectra, thermal analyses (DTA and TGA) and ESR spectra. Antimicrobial activities of the ligand and its metal(II) complexes have been tested against different microorganisms. The electrochemical data of complexes (2), (9) and (10) are discussed.

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