Advances in acyclic compartmental ligands and related complexes

Vigato, P.A.; Tamburini, S.

doi:10.1016/j.ccr.2007.10.030

Cited by 181 publications

(83 citation statements)

References 286 publications

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“…[1,2] Azo-Schiff bases, having imine groups (C = N), are formed by the condensation reaction of (NH 2 ) primary amines with (CHO) aldehydes or (CO) ketones. [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.…”

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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“…If both strands are cleaved, a linear form (form III) that migrates between form I and form II will be generated [43,44]. The results of the gel electrophoresis separations of plasmid pBR322 DNA by the ligands (1,2) and their complexes (3)(4)(5)(6)(7)(8) in the the absence or presence of H 2 O 2 are depicted in the Fig. 1.…”

Section: Synthesis Of Schiffmentioning

confidence: 99%

“…Dinuclear transition metal complexes and ligands capable of yielding them have received increasing attention in the field of synthetic and biological chemistry due to their key roles they play in many applications [1][2][3][4][5][6]. They are used as model systems for the active centers of many metalloenzymes [7,8], catalysts [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

4,4'-(DIPHENYLMETHANE-4,4'-DIYLDINITRILO)DIPENTAN-2-ONE AND 4,4'-(DIPHENYLETHER-4,4'-DIYLDINITRILO)DIPENTAN-2-ONE LIGANDS AND THEIR Ni(II), Cu(II) COMPLEXES: SYNTHESIS, CHARACTERIZATION, DNA CLEAVAGE STUDIES

Karipçin

Özmen

Culu

2012

J. Chil. Chem. Soc.

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The synthesis of two new ligands 4,4'-(diphenylmethane-4,4'-diyldinitrilo)dipentan-2-one (H 2 L 1 ) and 4,4'-(diphenylether-4,4'-diyldinitrilo)dipentan-2-one (H 2 L 2 ) is reported. The ligands have two acetylacetone subunits separated by diphenylmethane or diphenylether group. The ligands form stable dinuclear complexes with Ni(II) and Cu(II) ions. Ligands and their complexes were characterized by elemental analysis, m.p., IR, molar conductivity and magnetic moment measurements. The interaction between these compounds with DNA has also been investigated by agarose gel electrophoresis, we found that the nickel(II) and copper(II) complexes can cleave supercoiled pBR322 DNA to nicked and linear forms. The copper(II) complexes with H 2 O 2 as a cooxidant exhibited the strongest cleaving activity. The free ligands were also characterized by 1 H NMR spectra.

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“…Кроме того, активация алкилполиаминов как строительных блоков для получения макроциклических систем в реакциях конденсации с диальдегидами (например, с изофталевым альдегидом) в присутствии ионов металлов далеко не всегда протекает гладко и более характерна для ароматических аминов. [7,8] Ранее мы показали, что использование полимерного пивалата кобальта [Co(Piv) 2 ] n в качестве растворимого источника ионов металла позволяет проводить конденсацию триэтилентетрамина (…”

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Template Synthesis of Binuclear Macrocyclic NiII Complex on the Basis of Triethylenetetramine and Isophthalaldehyde

Tokarev¹,

Кискин²,

Сидоров³

et al. 2012

MHC

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Advances in acyclic compartmental ligands and related complexes

Cited by 181 publications

References 286 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

4,4'-(DIPHENYLMETHANE-4,4'-DIYLDINITRILO)DIPENTAN-2-ONE AND 4,4'-(DIPHENYLETHER-4,4'-DIYLDINITRILO)DIPENTAN-2-ONE LIGANDS AND THEIR Ni(II), Cu(II) COMPLEXES: SYNTHESIS, CHARACTERIZATION, DNA CLEAVAGE STUDIES

Template Synthesis of Binuclear Macrocyclic NiII Complex on the Basis of Triethylenetetramine and Isophthalaldehyde

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