Synthesis, spectroscopic characterization and antibacterial studies of lanthanide(III) Schiff base complexes containing N, O donor atoms

Lekha, L.; Raja, K. Kanmani; Rajagopal, Gurusamy; Easwaramoorthy, D.

doi:10.1016/j.molstruc.2013.10.014

Cited by 92 publications

(43 citation statements)

References 36 publications

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“…[3][4][5][6][7][8] These compounds had been used for industrial purposes such as pigments, catalysts, liquid-liquid extraction, active transport, intermediates in organic synthesis and as polymer stabilizers. [9][10][11][12][13] Thus, they play an important role in revealing the preferred coordination geometries of metal complexes due to their preparative accessibility, diversity and structural variability. [14][15][16] These properties of Schiff bases and their complexes have resulted in wide applications in the biological field [17] Cu (II) complexes are known to be effective against rheumatoid arthritis and they also show anti-ulcer activity.…”

Section: Introductionmentioning

confidence: 99%

A new azo‐Schiff base: Synthesis, characterization, biological activity and theoretical studies of its complexes

Zoubi

Al‐Hamdani

Ahmed

et al. 2017

Applied Organom Chemis

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A new Azo-Schiff base ligand L was prepared by reaction of m-hydroxy benzoic acid with (Schiff base B) of 3-[2-(1H-indol-3-yl)-ethylimino]-1.5-dimethyl-2-phenyl-2,3-dihydro-1H-pyrazol-4-ylamine. This synthesized ligand was used for complexation with different metal ions like Ni(II), Co(II), Pd(II) and Pt(IV) by using a molar ratio of ligand: metal as 1:1. Resulted compounds were characterized by NMR ( 1 H and 13 C), UV-vis spectroscopy, TGA, FT-IR, MS, elemental analysis, magnetic moment and molar conductivity studies. The activation thermodynamic parameters, such as ΔE*, ΔH * , ΔS * , ΔG * and K are calculated from the TGA curves using Coats-Redfern method. Hyper Chem-8 program has been used to predict structural geometries of compounds in gas phase. The biological activities of Schiff base and its complexes had been tested in vitro against, two Gram positive bacteria (Bacillus subtillis and Staphylococcus aureus) and two Gram negative bacteria (Escherichia coli and Pseudomonas aeruguinosa).

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Section: Introductionmentioning

confidence: 99%

A new azo‐Schiff base: Synthesis, characterization, biological activity and theoretical studies of its complexes

Zoubi

Al‐Hamdani

Ahmed

et al. 2017

Applied Organom Chemis

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“…The resulting formed ligands are: 2 2-hydroxy-1-naphthylidene-4-methylaniline HL 3 2-hydroxy-1-naphthylideneaniline HL 4 2-hydroxy-1-naphthylidene-4-chloroaniline HL 5 2-hydroxy-1-naphthylidene-4-nitroaniline.…”

Section: Preparation Of Schiff Base Ligands (Hl N )mentioning

confidence: 99%

“…The FTIR spectral data of the Schiff base ligands (HL n ) and their Ru(III) complexes (1)(2)(3)(4)(5) are listed in Table S1 in the supplementary. On the basis of the similarity of the spectra of the complexes (1-5), it may be assumed that they have the similar coordination structures.…”

Section: Infrared Spectramentioning

confidence: 99%

“…A large number of Schiff bases and their metal complexes have been studied because of their interesting and important properties such as their ability to reversibly bind oxygen and their use in catalyses [3,4] and biological systems [5,6]. Aromatic Schiff bases with an o-hydroxy substituent possess a very interesting characteristic-reversible color changes induced by irradiation (photochromism) or by a change in temperature (thermochromism).…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, spectroscopic characterization, catalytic and antibacterial studies of ruthenium(III) Schiff base complexes

Shoair

El-Shobaky

Abo-Yassin

2015

Journal of Molecular Liquids

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“…Besides, Ln(III) cations were usually used as luminescent centers owing to their characteristic emissions [20]. In addition, because of their obvious bacteriostatic activities to microorganisms [21][22][23], they were gradually emerging in the field of biomedicine.…”

Section: Introductionmentioning

confidence: 99%

Lanthanide complexes with 3-bromine-4-methyl benzoic acid and 1,10-phenanthroline

Zong

Ren

Zhang

et al. 2015

J Therm Anal Calorim

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The crystal structures of complexes [Tb (3-Br-4-MBA) 3 phen] 2 (1), [Ho(3-Br-4-MBA) 3 (phen)H 2 O] 2 (2) and [Er(3-Br-4-MBA) 3 (phen)H 2 O] 2 (3) (3-Br-4-MBA=3-bromine-4-methylbenzoate, phen=1,10-phenanthroline) have been solved by single-crystal X-ray diffraction methods. All obtained products were examined and characterized by elemental analysis, molar conductivity, IR, UV and XRD techniques. The thermogravimetric analysis of 1 to 3 was studied, indicating that the decomposition processes of 2 and 3 are different from 1. The mass loss of the first step for 2 and 3 is attributed to the H 2 O molecules. The three-dimensional IR accumulation spectra of gaseous of 1 to 3 were also recorded. Complex 1 emits strong and bright green fluorescence under UV light at the room temperature. The bacteriostatic activities of the three complexes against bacteria, such as Escherichia coli and Staphylococcus aureus, and fungus (Candida albicans) were tested.

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Synthesis, spectroscopic characterization and antibacterial studies of lanthanide(III) Schiff base complexes containing N, O donor atoms

Cited by 92 publications

References 36 publications

A new azo‐Schiff base: Synthesis, characterization, biological activity and theoretical studies of its complexes

A new azo‐Schiff base: Synthesis, characterization, biological activity and theoretical studies of its complexes

Synthesis, spectroscopic characterization, catalytic and antibacterial studies of ruthenium(III) Schiff base complexes

Lanthanide complexes with 3-bromine-4-methyl benzoic acid and 1,10-phenanthroline

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