scholarly journals A Schiff Base Sensor Selective to Anions, Biological Activity and Spectral Studies

2018 ◽  
pp. 1271-1278
Author(s):  
Nuray Yıldırım ◽  
Mustafa Yıldız
Keyword(s):  
Biological Activity ◽  
Schiff Base ◽  
Spectral Studies

scholarly journals Synthesis, Characterisation and Biological Activity of Thienoyl- and Furanoyl-Derived Schiff-Base Compounds With 3d Metal Ions

1998 ◽  
Vol 5 (6) ◽  
pp. 355-359
Keyword(s):  
Biological Activity ◽  
Schiff Base ◽  
Metal Ions ◽  
Metal Complexes ◽  
Biological Properties ◽  
Spectral Studies

Cobalt(ll), copper(ll), nickel(ll) and zinc(ll) metal complexes of 2-carboxybenzylidene thienoylhydrazide HL1 and 2-carboxybenzylidene furenoylhydrazide HL2 of the type [M(L)2.Cl2] have been prepared where M = Co(ll) and Ni(ll) and L = HL1 and HL2 (Fig 1) and characterized by their physical, analytical and spectral studies. The different mode of chelation of the ligands with metals and the effect of these metals on their biological properties is discussed.

scholarly journals Synthesis, Characterization and Biological Efficacies from Some New Dinuclear Metal Complexes for Base 3-(3,4-Dihydroxy-phenyl)-2-[(2-hydroxy-3-methylperoxy-benzylidene)-amino]-2-methyl Propionic Acid

2020 ◽  
Vol 20 (6) ◽  
pp. 1311
Author(s):  
Shatha Mohammed Hassan Obaid ◽  
Jasim Shihab Sultan ◽  
Abbas Ali Salih Al-Hamdani
Keyword(s):  
Biological Activity ◽  
Schiff Base ◽  
Metal Complexes ◽  
Schiff Base Complexes ◽  
Molar Ratio ◽  
Spectral Studies ◽  
Physical Analysis ◽  
Flame Atomic Absorption ◽  
Vis Spectroscopy ◽  
Ft Ir

The reaction of methyldopa with o-vanillin in refluxing ethanol afforded Schiff base and characterized through physical analysis with a number of spectra also the study of biological activity. The geometry of the Schiff base was identified through using (C.H.N) analysis, Mass, 1H-NMR, FT-IR, UV-Vis spectroscopy. Metal complexes of Cr3+, Mn2+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+ and Hg2+ with Schiff base have been prepared in the molar ratio 2:1 (Metal:L), (L = Schiff base ligand) except Hg2+ at molar ratio 1:1 (Hg:L). The prepared complexes were characterized by using Mass, FT-IR and UV-Vis spectral studies, on other than magnetic properties and flame atomic absorption, conductivity measurements. According to the results a dinuclear octahedral geometry has been suggested for Cr3+, Mn2+, Co2+, Ni2+, Cu2+ and Zn2+ complexes, dinuclear tetrahedral for Cd2+ and mononuclear tetrahedral for Hg2+ complex. This work highlights the relevance of metal complexation strategy to stabilize the ligands and improve their bioactivity. Schiff base complexes have been screen for their antibacterial activity against Gram negative and positive bacteria and antifungal activity showing promising antibacterial and biological activity.

Structural characterization and biological activity of a new metal complexes based of Schiff base

2021 ◽  
Vol 330 ◽  
pp. 115522
Author(s):  
Ola A. El-Gammal ◽  
Farid Sh. Mohamed ◽  
Ghada N. Rezk ◽  
Ashraf A. El-Bindary
Keyword(s):  
Biological Activity ◽  
Schiff Base ◽  
Metal Complexes ◽  
Structural Characterization

scholarly journals Physical properties, ligand substitution reactions, and biological activity of Co(iii)-Schiff base complexes

2019 ◽  
Vol 48 (18) ◽  
pp. 5987-6002 ◽  
Author(s):  
A. Paden King ◽  
Hendryck A. Gellineau ◽  
Samantha N. MacMillan ◽  
Justin J. Wilson
Keyword(s):  
Biological Activity ◽  
Schiff Base ◽  
Physical Properties ◽  
Ligand Exchange ◽  
Ligand Substitution ◽  
Schiff Base Complexes ◽  
Substitution Reactions ◽  
Anticancer Properties ◽  
Ligand Substitution Reactions

A subset of fluorinated Co(iii) Schiff base complexes was synthesized, and their structural, ligand exchange, and anticancer properties were investigated.

Preparation, characterization and biological activity of Schiff base compounds derived from 8-hydroxyquinoline-2-carboxaldehyde and Jeffamines ED®

2002 ◽  
Vol 38 (5) ◽  
pp. 989-999 ◽  
Author(s):  
Rosica Mladenova ◽  
Milena Ignatova ◽  
Nevena Manolova ◽  
Tsvetanka Petrova ◽  
Iliya Rashkov
Keyword(s):  
Biological Activity ◽  
Schiff Base
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