1
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Hrichi H, Ali AM, Elkanzi NAA, Abdou A. A selective colorimetric chemosensor for detecting Ni(II) in aqueous solutions based on 4-[{[4-(3-chlorophenyl)-1,3-thiazol-2-yl]hydrazono}methyl]phenyl 4-methyl benzene sulfonate (CTHMBS). ANAL SCI 2024; 40:741-754. [PMID: 38308675 DOI: 10.1007/s44211-024-00511-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/04/2024] [Indexed: 02/05/2024]
Abstract
Among the toxic heavy metals, Ni(II) can cause a variety of side effects on human health, such as allergy, cardiovascular and kidney diseases, lung fibrosis, lung, and nasal cancer. It is therefore critical from a public health and environmental perspective to determine and monitor Ni(II) ions in drinking water, foods, and environmental samples. In this study, a novel selective chemosensor (4-[{[4-(3-Chlorophenyl)-1,3-Thiazol-2-yl]Hydrazono}Methyl]phenyl4-methylBenzene Sulfonate (CTHMBS) was developed for the colorimetric detection of Ni(II) in aqueous medium. The presence of Ni(II) led to a distinct naked-eye color change from yellow to reddish-brown in aqueous solution. To examine the binding mechanism of CTHMBS to Ni(II), UV-vis spectroscopy analysis and DFT calculations were conducted. The detection limit of CTHMBS for Ni(II) was 11.87 µM, and the sensing ability of CTHMBS for Ni(II) was successfully carried out in real water samples.
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Affiliation(s)
- Hajer Hrichi
- Chemistry Department, College of Science, Jouf University, P.O. Box: 2014, Sakaka, Saudi Arabia.
| | - Ali M Ali
- Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Nadia A A Elkanzi
- Chemistry Department, College of Science, Jouf University, P.O. Box: 2014, Sakaka, Saudi Arabia
- Chemistry Department, Faculty of Science, Aswan University, P.O. Box 81528, Aswan, Egypt
| | - Aly Abdou
- Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
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2
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Al-Gaber MAI, Abd El-Lateef HM, Khalaf MM, Shaaban S, Shawky M, Mohamed GG, Abdou A, Gouda M, Abu-Dief AM. Design, Synthesis, Spectroscopic Inspection, DFT and Molecular Docking Study of Metal Chelates Incorporating Azo Dye Ligand for Biological Evaluation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:897. [PMID: 36769903 PMCID: PMC9917733 DOI: 10.3390/ma16030897] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/09/2023] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
A new heterocyclic azo dye ligand (L) was synthesized by the combination of 4-amino antipyrine with 4-aminophenol. The new Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) complexes were synthesized in excellent yields. The metal chelate structures were elucidated using elemental analyses, FT-IR, 1H-NMR, mass, magnetic moment, diffused reflectance spectral and thermal analysis (TG-DTG), and molar conductivity measurement. According to the FT-IR study, the azo dye ligand exhibited neutral tri-dentate behavior, binding to the metal ions with the azo N, carbonyl O, and protonated phenolic OH. The 1H-NMR spectral study of the Zn(II) complex supported the coordination of the zo dye ligand without proton displacement of the phenolic OH. Diffused reflectance and magnetic moment studies revealed the octahedral geometry of the complexes, as well as their good electrolytic nature, excepting the Zn(II) and Cd(II) complexes, which were nonelectrolytes, as deduced from the molar conductivity study. The theoretical calculations of optimized HOMO-LUMO energies, geometrical parameters, electronic spectra, natural atomic charges, 3D-plots of MEP, and vibrational wavenumbers were computed and elucidated using LANL2DZ and 6-311G (d, p) basis sets of density functional theory (DFT) with the approach of B3LYP DFT and TD-DFT methods. The ligand and complexes have been assayed for their antimicrobial activity and compared with the standard drugs. Most of the complexes have manifested excellent antimicrobial activity against various microbial strains. A molecular docking investigation was also performed, to acquire more information about the binding mode and energy of the ligand and its metal complexes to the Escherichia coli receptor using molecular docking. Altogether, the newly created ligand and complexes showed positive antibacterial effects and are worth future study.
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Affiliation(s)
| | - Hany M. Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Mai M. Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Saad Shaaban
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Mohamed Shawky
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
- Nanoscience Department, Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El Arab, Alexandria 21934, Egypt
| | - Aly Abdou
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Ahmed M. Abu-Dief
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Chemistry Department, College of Science, Taibah University, Medinah 42344, Saudi Arabia
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3
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Seven metal-based bi-dentate NO azocoumarine complexes: Synthesis, characterization, DFT calculations, Drug-Likeness, in vitro antimicrobial screening and molecular docking analysis. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121043] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Synthesis, theoretical study, molecular docking and biological activity of nano tridentate (E)-2-((3-hydoxyphenyl)methyl)phenol metal complexes. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109193] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Rangappa MM, Keshavayya J, Murali Krishna P, Rajesh K. Transition metal complexes of ligand 4-imino-3-[(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)diazenyl]-4H pyrimido[2,1-b][1,3]benzothiazol-2-ol containing benzothiazole moiety: Synthesis, spectroscopic characterization and biological evaluation. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108524] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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6
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Reshma R, Selwin Joseyphus R, Arish D, Reshmi Jaya RJ, Johnson J. Tridentate imidazole-based Schiff base metal complexes: molecular docking, structural and biological studies. J Biomol Struct Dyn 2021; 40:8602-8614. [PMID: 33896364 DOI: 10.1080/07391102.2021.1914171] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A novel Schiff base was synthesized by the condensation of imidazole-2-carboxaldehyde with l-histidine in an equimolar ratio. The prepared Schiff base was characterized by elemental analysis and spectral characterization techniques. It was then complexed with a series of 3-d metal(II) ions like manganese, iron, cobalt, nickel, copper and zinc. The coordination properties, nature of bonding and stability of the complexes were deduced from elemental analysis, IR, UV-vis, 1H NMR, mass, electronic spectra, magnetic, conductivity and thermogravimetric analysis. IR studies support the tridentate behaviour of Schiff base as well as its coordination to the central metal ion through an azomethine nitrogen, deprotonated carboxylic oxygen and imidazole ring nitrogen atoms of histidine. The electronic spectra and magnetic moment data demonstrate that the complexes have an octahedral geometry, except zinc complex, which has a tetrahedral geometry. In vitro antimicrobial activity of the synthesized compounds has been shown to exhibit excellent antibacterial and antifungal activities. The antibacterial property of the prepared Schiff base was further confirmed by conducting a docking study of target proteins involved in the antibacterial mechanism.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- R Reshma
- PG & Research Department of Chemistry, Mar Ivanios College (Autonomous), University of Kerala, Nalanchira, Kerala, India.,Department of Chemistry, Sree Narayana College, Varkala, Kerala, India
| | - R Selwin Joseyphus
- PG & Research Department of Chemistry, Mar Ivanios College (Autonomous), University of Kerala, Nalanchira, Kerala, India
| | - D Arish
- FunGlass, Alexander Dubček University of Trenčín, Trenčín, Slovakia
| | | | - J Johnson
- Department of Chemistry, Santhom Malankara Arts and Science College, Ednji, Thiruvananthapuram, Kerala, India
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7
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Moustafa H, Mohamed GG, Elramly S. Spectroscopic studies,
Density Functional Theory
calculations, and
non‐linear
optical properties of binuclear Fe(
III
), Co(
II
), Ni(
II
), Cu(
II
), and Zn(
II
) complexes of
OONN
Schiff base ligand. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hussein Moustafa
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
- Egypt Nanotechnology Center Cairo University Giza Egypt
| | - Salwa Elramly
- Academy of Scientific Research and Technology, Scientific Research and Technology Academy Cairo Egypt
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8
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El-Sonbati A, Mahmoud W, Mohamed GG, Diab M, Morgan S, Abbas S. Synthesis, characterization of Schiff base metal complexes and their biological investigation. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5048] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- A.Z. El-Sonbati
- Chemistry Department, Faculty of Science; Damietta University; Egypt
| | - W.H. Mahmoud
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
- Egypt Nanotechnology Center; Cairo University; El-Sheikh Zayed, 6 October 12588 Egypt
| | - M.A. Diab
- Chemistry Department, Faculty of Science; Damietta University; Egypt
| | - Sh.M. Morgan
- Environmental Monitoring Laboratory, Ministry of Health; Port Said Egypt
| | - S.Y. Abbas
- Chemistry Department, Faculty of Science; Damietta University; Egypt
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9
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Mahmoud WH, Mahmoud NF, Mohamed GG. Physicochemical characterization of nanobidentate ferrocene‐based Schiff base ligand and its coordination complexes: Antimicrobial, anticancer, density functional theory, and molecular operating environment studies. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800316] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Walaa H. Mahmoud
- Chemistry Department, Faculty of ScienceCairo University Giza Egypt
| | | | - Gehad G. Mohamed
- Chemistry Department, Faculty of ScienceCairo University Giza Egypt
- Egypt Nanotechnology CenterCairo University Giza Egypt
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10
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El‐Sonbati A, Diab M, Mohamed G, Saad M, Morgan S, El‐Sawy S. Polymer complexes. LXXVII. Synthesis, characterization, spectroscopic studies and immune response in cattle of quinoline polymer complexes. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4973] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- A.Z. El‐Sonbati
- Chemistry Department, Faculty of ScienceDamietta University Damietta Egypt
| | - M.A. Diab
- Chemistry Department, Faculty of ScienceDamietta University Damietta Egypt
| | - G.G. Mohamed
- Chemistry Department, Faculty of ScienceCairo University 12613 Giza Egypt
| | - M.A. Saad
- Central Laboratory for Evaluation of Veterinary Biologics Abbassia, 131 Cairo Egypt
| | - Sh.M. Morgan
- Environmental Monitoring LaboratoriesMinistry of Health Port Said Egypt
| | - S.E.A. El‐Sawy
- Chemistry Department, Faculty of ScienceDamietta University Damietta Egypt
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11
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Zayed EM, Mohamed GG, Hassan WM, Elkholy AK, Moustafa H. Spectroscopic, thermal, biological activity, molecular docking and density functional theoretical investigation of novel bis Schiff base complexes. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4375] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ehab M. Zayed
- Green Chemistry Department; National Research Centre; Dokki 12622 Giza Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science; Cairo University; 12613 Giza Egypt
- Egypt Nanotechnology Center; Cairo University; El-Sheikh Zayed 12588 Giza Egypt
| | - Walid M.I. Hassan
- Chemistry Department, Faculty of Science; Cairo University; 12613 Giza Egypt
| | - Asmaa K. Elkholy
- Chemistry Department, Faculty of Science; Cairo University; 12613 Giza Egypt
| | - H. Moustafa
- Chemistry Department, Faculty of Science; Cairo University; 12613 Giza Egypt
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12
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Abd El-Halim HF, Mohamed GG, Khalil EA. Synthesis, spectral, thermal and biological studies of mixed ligand complexes with newly prepared Schiff base and 1,10-phenanthroline ligands. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.092] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Molecular structure, molecular docking, thermal, spectroscopic and biological activity studies of bis-Schiff base ligand and its metal complexes. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3952] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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14
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Mahmoud WH, Mohamed GG, Refat AM. Preparation, characterization, biological activity, density functional theory calculations and molecular docking of chelates of diazo ligand derived from
m
‐phenylenediamine and
p
‐chlorophenol. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3753] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Walaa H. Mahmoud
- Chemistry Department, Faculty of ScienceCairo University 12613 Giza Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of ScienceCairo University 12613 Giza Egypt
| | - Ahmed M. Refat
- Chemistry Department, Faculty of ScienceCairo University 12613 Giza Egypt
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15
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Mixed-ligand complex formation of tenoxicam drug with some transition metal ions in presence of valine: Synthesis, characterization, molecular docking, potentiometric and evaluation of the humeral immune response of calves. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.09.065] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Sadeek S, El-Hamid SA. Preparation, characterization and cytotoxicity studies of some transition metal complexes with ofloxacin and 1,10-phenanthroline mixed ligand. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.05.101] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Diab M, El-Sonbati A, El-Bindary A, Morgan S, El-Kader MA. Geometrical structures, molecular docking, spectroscopic characterization of mixed ligand and Schiff base metal complexes. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.01.102] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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El-Sonbati A, Diab M, El-Bindary A, Mohamed G, Morgan S, Abou-Dobara M, Nozha S. Geometrical structures, thermal stability and antimicrobial activity of Schiff base supramolecular and its metal complexes. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.12.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Mahmoud WH, Deghadi RG, Mohamed GG. Novel Schiff base ligand and its metal complexes with some transition elements. Synthesis, spectroscopic, thermal analysis, antimicrobial and in vitro
anticancer activity. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3420] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Walaa H. Mahmoud
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Reem G. Deghadi
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
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20
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Synthesis, spectroscopic, thermogravimetric and antimicrobial studies of mixed ligands complexes. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.04.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Mahmoud WH, Mahmoud NF, Mohamed GG, El-Bindary AA, El-Sonbati AZ. Supramolecular structural, thermal properties and biological activity of 3-(2-methoxyphenoxy)propane-1,2-diol metal complexes. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.01.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Ragheb MA, Eldesouki MA, Mohamed MS. DNA binding, photo-induced DNA cleavage and cytotoxicity studies of lomefloxacin and its transition metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 138:585-595. [PMID: 25541395 DOI: 10.1016/j.saa.2014.11.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 10/23/2014] [Accepted: 11/20/2014] [Indexed: 06/04/2023]
Abstract
This work was focused on a study of the DNA binding and cleavage properties of lomefloxacin (LMF) and its ternary transition metal complexes with glycine. The nature of the binding interactions between compounds and calf thymus DNA (CT-DNA) was studied by electronic absorption spectra, fluorescence spectra and thermal denaturation experiments. The obtained results revealed that LMF and its complexes could interact with CT-DNA via partial/moderate intercalative mode. Furthermore, the DNA cleavage activities of the compounds were investigated by gel electrophoresis. Mechanistic studies of DNA cleavage suggest that singlet oxygen ((1)O2) is likely to be the cleaving agent via an oxidative pathway, except for Cu(II) complex which proceeds via both oxidative and hydrolytic pathways. Antimicrobial and antitumor activities of the compounds were also studied against some kinds of bacteria, fungi and human cell lines.
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Affiliation(s)
- Mohamed A Ragheb
- Department of Chemistry, Biochemistry Speciality, Faculty of Science, Cairo University, Egypt
| | - Mohamed A Eldesouki
- Department of Chemistry, Biochemistry Speciality, Faculty of Science, Cairo University, Egypt
| | - Mervat S Mohamed
- Department of Chemistry, Biochemistry Speciality, Faculty of Science, Cairo University, Egypt.
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23
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Alaghaz ANM, Zayed ME, Alharbi SA. Synthesis, spectral characterization, molecular modeling, biological activity and potentiometric studies of 4-amino-5-mercapto-3-methyl-S-triazole Schiff’s base complexes. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.10.076] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Essawy AA, Afifi MA, Moustafa H, El-Medani SM. DFT calculations, spectroscopic, thermal analysis and biological activity of Sm(III) and Tb(III) complexes with 2-aminobenzoic and 2-amino-5-chloro-benzoic acids. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 131:388-397. [PMID: 24835942 DOI: 10.1016/j.saa.2014.04.134] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/16/2014] [Accepted: 04/14/2014] [Indexed: 06/03/2023]
Abstract
The complexes of Sm(III) and Tb(III) with 2-aminobenzoic acid (anthranilic acid, AA) and 2-amino-5-chlorobenzoic acid (5-chloroanthranilic acid, AACl) were synthesized and characterized based on elemental analysis, IR and mass spectroscopy. The data are in accordance with 1:3 [Metal]:[Ligand] ratio. On the basis of the IR analysis, it was found that the metals were coordinated to bidentate anthranilic acid via the ionised oxygen of the carboxylate group and to the nitrogen of amino group. While in 5-chloroanthranilic acid, the metals were coordinated oxidatively to the bidentate carboxylate group without bonding to amino group; accordingly, a chlorine-affected coordination and reactivity-diversity was emphasized. Thermal analyses (TGA) and biological activity of the complexes were also investigated. Density Functional Theory (DFT) calculations at the B3LYP/6-311++G (d,p)_ level of theory have been carried out to investigate the equilibrium geometry of the ligand. The optimized geometry parameters of the complexes were evaluated using SDDALL basis set. Moreover, total energy, energy of HOMO and LUMO and Mullikan atomic charges were calculated. In addition, dipole moment and orientation have been performed and discussed.
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Affiliation(s)
- Amr A Essawy
- Chemistry Department, Faculty of Science, Fayoum University, 63514 Fayoum, Egypt
| | - Manal A Afifi
- Chemistry Department, Faculty of Science, Fayoum University, 63514 Fayoum, Egypt
| | - H Moustafa
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt.
| | - S M El-Medani
- Chemistry Department, Faculty of Science, Fayoum University, 63514 Fayoum, Egypt
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25
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Mahmoud WH, Mohamed GG, El-Dessouky MMI. Coordination modes of bidentate lornoxicam drug with some transition metal ions. Synthesis, characterization and in vitro antimicrobial and antibreastic cancer activity studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 122:598-608. [PMID: 24334061 DOI: 10.1016/j.saa.2013.11.069] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 10/19/2013] [Accepted: 11/10/2013] [Indexed: 06/03/2023]
Abstract
The NSAID lornoxicam (LOR) drug was used for complex formation reactions with different metal salts like Cr(III), Mn(II), Fe(III) and Ni(II) chlorides and Fe(II), Co(II), Cu(II) and Zn(II) borates. Mononuclear complexes of these metals are obtained that coordinated to NO sites of LOR ligand molecule. The nature of bonding and the stereochemistry of the complexes have been deduced from elemental analyses, IR, UV-Vis, (1)H NMR, mass, electronic spectra, magnetic susceptibility and ESR spectral studies, conductivity measurements, thermogravimetric analyses (TG-DTG) and further confirmed by X-ray powder diffraction. The activation thermodynamic parameters are calculated using Coats-Redfern and Horowitz-Metzger methods. The data show that the complexes have composition of ML2 type except for Fe(II) where the type is [ML3]. The electronic absorption spectral data of the complexes suggest an octahedral geometry around the central metal ion for all the complexes. The antimicrobial data reveals that LOR ligand in solution show inhibition capacity less or sometimes more than the corresponding complexes against all the species under study. In order to establish their future potential in biomedical applications, anticancer evaluation studies against standard breast cancer cell lines (MCF7) was performed using different concentrations. The obtained results indicate high inhibition activity for Cr(III), Fe(II) and Cu(II) complexes against breast cancer cell line (MCF7) and recommends them for testing as antitumor agents.
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Affiliation(s)
- Walaa H Mahmoud
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Gehad G Mohamed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt.
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26
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Thalamuthu S, Annaraj B, Neelakantan MA. A systematic investigation on biological activities of a novel double zwitterionic Schiff base Cu(II) complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 118:120-129. [PMID: 24044990 DOI: 10.1016/j.saa.2013.08.065] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 08/13/2013] [Accepted: 08/15/2013] [Indexed: 06/02/2023]
Abstract
Double zwitterionic amino acid Schiff base, o-vanillylidene-L-histidine (OVHIS) and its copper complex (CuOVHIS) have been synthesized and characterized. CuOVHIS has distorted octahedral geometry, and OVHIS coordinates the copper ion in a tetradentate manner (N2O2). The pKa of OVHIS in aqueous solution was studied by potentiometric and spectrophotometric methods. DNA binding behavior of the compounds was investigated using spectrophotometric, cyclic voltammetric, and viscosity methods. The efficacy of DNA cleaving nature was tested on pUC19 DNA. The in vitro biological activity was tested against various micro organisms. The effect of CuOVHIS on the surface feature of Escherichia coli was analyzed by SEM. DPPH assay studies revealed that CuOVHIS has higher antioxidant activity. OVHIS inhibits proliferation of HCT117 cells with half maximal inhibition (IC50) of 71.15±0.67. Chelation of OVHIS with Cu(II) ion enhances the inhibition of proliferation action (IC50=53.14±0.67).
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Affiliation(s)
- S Thalamuthu
- Chemistry Research Centre, National Engineering College, K.R. Nagar, Kovilpatti 628503, Thoothukudi District, Tamil Nadu, India
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Hassan WMI, Badawy MA, Mohamed GG, Moustafa H, Elramly S. Synthesis, spectroscopic, thermal and DFT calculations of 2-(3-amino-2-hydrazono-4-oxothiazolidin-5-yl) acetic acid binuclear metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 111:169-177. [PMID: 23624211 DOI: 10.1016/j.saa.2013.03.085] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 03/14/2013] [Accepted: 03/16/2013] [Indexed: 06/02/2023]
Abstract
The binuclear complexes of 2-(3-amino-2-hydrazono-4-oxothiazolidin-5-yl) acetic acid ligand (HL) with Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) ions were prepared and their stoichiometry was determined by elemental analysis. The stereochemistry of the studied series of metal complexes was established by analyzing their infrared, (1)H NMR spectra and the magnetic moment measurements. According to the elemental analysis data, the complexes were found to have the formulae [Fe2L(H2O)8]Cl5 and [M2L(H2O)8]Cl3 (M=Co(II), Ni(II), Cu(II) and Zn(II)). The present analyses demonstrate that all metal ions coordinated to the ligand via O(9), O(11), N(16) and N(18) atoms. Thermal decomposition studies of the ligand-metal complexes have been performed to verify the status of water molecules present in these metal complexes and their general decomposition pattern. Density Functional Theory (DFT) calculations at the B3LYP/6-31G(*) level of theory have been carried out to investigate the equilibrium geometry of the ligand and complexes. Moreover, charge density distribution, extent of distortion from regular geometry, dipole moment and orientation have been performed and discussed.
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Affiliation(s)
- Walid M I Hassan
- Chemistry Department, Faculty of Science, Cairo University, 12613 Giza, Egypt
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Soliman MH, Mohamed GG. Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) new complexes of 5-aminosalicylic acid: spectroscopic, thermal characterization and biological activity studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 107:8-15. [PMID: 23416903 DOI: 10.1016/j.saa.2013.01.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/27/2012] [Accepted: 01/10/2013] [Indexed: 05/23/2023]
Abstract
The complexing behavior of mesalazine (5-aminosalicylic acid; 5-ASA) towards the transition metal ions namely, Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) have been examined by elemental analyses, magnetic measurements, electronic, IR and (1)H NMR. Thermal properties and decomposition kinetics of all complexes are investigated. The interpretation, mathematical analyses and evaluation of kinetic parameters of all thermal decomposition stages have been evaluated using Coats-Redfern equation. The free ligand and its metal complexes have been tested in vitro against Aspergillus fumigatus and Candida albicans fungi and Pseudomonas aeruginosa, Escherichia coli, Bacillis subtilies and Staphylococcus aureus bacteria in order to assess their antimicrobial potential. The results indicate that the metal complexes are also found to have more antimicrobial activity than the parent 5-ASA drug.
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Affiliation(s)
- Madiha H Soliman
- Chemistry Department, Faculty of Science, Helwan University, P.O. Box 11795, Helwan, Egypt.
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Hassan WMI, Zayed EM, Elkholy AK, Moustafa H, Mohamed GG. Spectroscopic and density functional theory investigation of novel Schiff base complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 103:378-387. [PMID: 23266605 DOI: 10.1016/j.saa.2012.10.058] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Revised: 10/19/2012] [Accepted: 10/25/2012] [Indexed: 06/01/2023]
Abstract
Novel Schiff base (H(2)L, 1,2-bis[(2-(2-mercaptophenylimino)methyl)phenoxy] ethane) derived from condensation of bisaldehyde and 2-aminothiophenol was prepared in a molar ratio 1:2. The ligand and its metal complexes are fully characterized with analytical and spectroscopic techniques. The metal complexes with Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II) and Th(IV) have been prepared and characterized by elemental analyses, IR and (1)H-NMR spectroscopy, thermal and magnetic measurements. The results suggested that the Schiff base is a bivalent anion with hexadentate OONNSS donors derived from the etheric oxygen (O, O'), azomethine nitrogen (N, N') and thiophenolic sulphur (S, S'). The formulae of the complexes were found to be [ML]·xH(2)O (M=Mn(II) (x=0), Co(II) (x=1), Ni(II), (x=1), Cu(II) (x=2) and Zn(II) (x=0)) and [ML]·nCl (M=Cr(III) (n=1), Fe(III) (n=1) and Th(IV) (n=2)). The thermogravimetric analysis of the complexes shows metal oxide remaining as the final product at 700-1000 °C. Density functional theory at the B3LYP/6-31G(*) level of theory was used to investigate molecular geometry, Mulliken atomic charges and energetics. The synclinal-conformer was found to be responsible for complex formation. The calculation showed that ligand has weak field. Structural deformation and the dihedral angles rotation during complexation were investigated. The binding energy of each complex was calculated. The calculated results are in good agreement with experimental data.
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Affiliation(s)
- Walid M I Hassan
- Chemistry Department, Faculty of Science, Cairo University, 12613 Giza, Egypt
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