Coordination chemistry of supramolecular rhodanine azodye sulphadrugs

El‐Sonbati, A.Z.; Diab, M.A.; El-Bindary, A.A.; Morgan, Sh.M.

doi:10.1016/j.ica.2013.04.001

Cited by 28 publications

(21 citation statements)

References 27 publications

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“…2) The N═N stretching frequency of the azo groups is shifted to lower frequency by ~15-25 cm -1 due to the involvement of one of the azo nitrogen atoms in coordination with metal ion [2][3][4]. This lowering of frequency can be explained by the transfer of electrons from nitrogen atom to the Cu(II) ion due to coordination.…”

Section: Infrared Spectra Of Complexes and Nature Of Coordinationmentioning

confidence: 99%

“…The complex (3) is the highest value of E a . This can be attributed to the fact that the effective charge experienced by the d-electrons increases due to the electron withdrawing p-substituent NO 2 while it decreases by the electron donating character of OCH 3 and CH 3 . This indicates that, the complex (3) is more thermally stable than the other complexes [4].…”

Section: Horowitz-metzger Equationmentioning

confidence: 99%

“…The behavior of azodye complexes have attracted the attention of the bioinorganic chemists, since a number of these complexes are recognized to serve as models for biologically important species [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermal Properties, Antimicrobial Activity of Azo Complexes and Ultrastructure Study of Some Affected Bacteria

MI¹,

AZ²

2011

JMBT

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A series of copper (II) complexes of bidentate azo rhodanine ligands (HLn) have been synthesized and characterized. The IR spectral and thermogravimetric analysis are used to characterize the isolated complexes. X-ray diffraction patterns show polycrystalline nature for as-synthesized ligand HL2 and its complex. Quantum chemical parameters, absolute hardness, global electrophilicity and additional electronic charge were calculated for HLn. Copper(II) complexes (1-4) are tested against four local bacterial species; namely two Gram positive bacteria (Staphylococcus aureus and Bacillus cereus) and two Gram negative bacteria (Escherichia coli and Klebsiella pneumoniae) and against four local fungal species (Aspergillus niger, Fusarium oxysporium, Penicillium italicum and Alternaria alternata). The tested complexes have good antibacterial activity against Staphylococcus aureus and Escherichia coli and have low antifungal activity against Aspergillus niger, Fusarium oxysporium and Alternaria alternata. We found that the complex (3) is more active than other complexes against Staphylococcus aureus and Escherichia coli as expected from Hammett's substituent coefficients (σR). Ultrastructure studies of the affected Staphylococcus aureus and Escherichia coli confirmed that complex (3) has bactericidal effect.

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Section: Infrared Spectra Of Complexes and Nature Of Coordinationmentioning

confidence: 99%

Section: Horowitz-metzger Equationmentioning

confidence: 99%

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Thermal Properties, Antimicrobial Activity of Azo Complexes and Ultrastructure Study of Some Affected Bacteria

MI¹,

AZ²

2011

JMBT

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“…Rhodanine derivatives are a good series of ligands capable of binding metal ions leading to metal complexes with increasing properties. The high stable potential of rhodanine derivative complexes in different oxidation states increased the application of these compounds in a wide range [6,7]. It is known that rhodanine plays an important role in biological reactions [8].…”

Section: Introductionmentioning

confidence: 99%

Geometrical structure, potentiometric and thermodynamic studies of rhodanine azodye and its metal complexes

El-Bindary

El‐Sonbati

Diab

et al. 2015

Journal of Molecular Liquids

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“…Azo compounds containing heterocyclic moieties have drawn the attention of many researchers [1][2][3][4][5]. It has been well established that the use of heterocyclic amines with oxygen as the π-excessive hetero atom as diazo component has a marked bathochromic effect compared to analogous dyes derived from benzenoid compounds [6].…”

Section: Introductionmentioning

confidence: 99%

Geometrical structure, molecular docking, potentiometric and thermodynamic studies of 3-aminophenol azodye and its metal complexes

El‐Sonbati

El-Bindary

Hassan

et al. 2015

Journal of Molecular Liquids

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Coordination chemistry of supramolecular rhodanine azodye sulphadrugs

Cited by 28 publications

References 27 publications

Thermal Properties, Antimicrobial Activity of Azo Complexes and Ultrastructure Study of Some Affected Bacteria

Thermal Properties, Antimicrobial Activity of Azo Complexes and Ultrastructure Study of Some Affected Bacteria

Geometrical structure, potentiometric and thermodynamic studies of rhodanine azodye and its metal complexes

Geometrical structure, molecular docking, potentiometric and thermodynamic studies of 3-aminophenol azodye and its metal complexes

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