scholarly journals Preparation, crystal structure, spectroscopic studies, DFT calculations, antibacterial activities and molecular docking of a tridentate Schiff base ligand and its cis -MoO2 complex

2018 ◽  
Vol 32 (4) ◽  
pp. e4233 ◽  
Author(s):  
S. Yousef Ebrahimipour ◽  
Mehrji Khosravan ◽  
Jonathan White ◽  
Sahar Fekri
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Molecular Docking ◽  
Dft Calculations ◽  
Schiff Base Ligand ◽  
Antibacterial Activities ◽  
Spectroscopic Studies ◽  
Tridentate Schiff Base

scholarly journals Synthesis, Characterization, and Crystal Structure of [Co4(CH3CO2)2L4]2[BPh4]4·0.5H2O, Where HL = 4-(Salicylaldiminato)antipyrine

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Ramadan M. El-mehdawi ◽  
Abdussalam N. EL-dewik ◽  
Mufida M. Ben-Younes ◽  
Fathia A. Treish ◽  
Ramadan G. Abuhmaiera ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Single Crystal ◽  
Elemental Analysis ◽  
Schiff Base Ligand ◽  
Title Complex ◽  
Single Crystal Diffraction ◽  
X Ray ◽  
Tridentate Schiff Base

The title complex was isolated as a red solid from the reaction of 4-(salicylaldiminato)antipyrine, HL, and cobalt (II) acetate in ethanol. The complex has been characterized by elemental analysis, FTIR, UV-Vis, and X-ray single crystal diffraction. Two crystallographically different cationic units, A and B, of the title complex are found. Both units are essentially isostructural; nevertheless, small differences exist between them. Both units contain four cobalt atoms arranged at the corners of distorted cubane-like core alternatively with phenoxy oxygen of the Schiff base. In both cases, one cobalt binds to three coordinated sites from the corresponding tridentate Schiff base ligand, and the fourth one was bonded by the acetate oxygen, and the fifth and the sixth donor sites come from the phenolate oxygen of another Schiff base ligand.

Synthesis, crystal structure and magnetic properties of a new oxalato-bridged binuclear copper(II) complex with a tridentate Schiff base ligand

Polyhedron ◽  
2001 ◽  
Vol 20 (17) ◽  
pp. 2113-2116 ◽  
Author(s):  
Bappaditya Bag ◽  
Nijhuma Mondal ◽  
Samiran Mitra ◽  
Volker Gramlich ◽  
Joan Ribas ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Binuclear Copper ◽  
Tridentate Schiff Base

scholarly journals Fluorescence, Biological Activity and Spectroscopic Studies of Azo-linked Schiff Base Ligand Type (ONO) and Its Complexes with CrIII, CoII NiII and CdII Ions

2017 ◽  
Vol 30 (3) ◽  
pp. 114
Author(s):  
Hasan A. Hasan
Keyword(s):  
Biological Activity ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Room Temperature ◽  
Diazonium Salt ◽  
Chloride Content ◽  
Spectroscopic Studies ◽  
Ligand Type ◽  
Tridentate Schiff Base ◽  
Complex Thermal Analysis

 The precursor [W] [2-(2-(naphthalen-5-yl) diazenyl)-4-amino-3-hydroxynaphthalene-1sulfonic acid] was synthesized from reaction of diazonium salt with 1-amino-2-naphtol-4sulfonic acid. Then the tridentate Schiff base ligand type ONO was synthesized from the reaction of the precursor with salicyaldehyde in 1:1 mole ratio to produce the ligand H2L [2-(2-(naphthalen5-yl) diazenyl)-4-(2-hydroxynaphthalen-3-yl)methyleneamino)-3-hydroxy salicyalene-1-sulfonic acid],the reaction achieved in methanol as a solvent under reflux. Spectroscopic methods IR, U.V, 1H,13C-NMR was used to characterize the ligand. Complexes of [CrIII, CoII, NiII and CdII] ions were also prepared through reaction of ligand with metal salts in 2:1 mole ratio at reflux, using KOH as a base, ethanol as a solvent. Chloride content, molar conductivity and melting point measurements along with I.R and U.V-Vis, atomic absorption (A.A) spectroscopy were used to characterize the complexes.1H-NMR spectroscopy was used to characterize Cd complex. Thermal analysis was used to insure the presence of crystallized H2O molecule in the complexes structure. The following formula was proposed for Cr complex: K[Cr(L)2]. H2O, while CoII, NiII and CdII complexes have the K2[M(L)2].H2O formula. The biological activity of the prepared compounds was studied. Fluorescence properties of the prepared compounds were studied (at room temperature) which indicate that the ligand may behave as strong fluorescent emitter. The complexes also showed fluorescence characteristic with the ligand. The ligand revealed high relative intensity and its fluorescence peak were also shifted to the lower or higher wavelength when compared with the complexes.

Dimeric Complexes of a Tridentate Schiff Base Ligand – Crystal Structure of a CuII Complex with Uncommon μ2-Nsulfonamido Bridges and Ferromagnetic Behaviour

2008 ◽  
Vol 2008 (10) ◽  
pp. 1719-1726 ◽  
Author(s):  
Jesús Sanmartín ◽  
Fernando Novio ◽  
Ana M. García-Deibe ◽  
Matilde Fondo ◽  
Noelia Ocampo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Ferromagnetic Behaviour ◽  
Dimeric Complexes ◽  
Tridentate Schiff Base
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