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Synthesis, Spectral Characterization, and Biological Activities of Some Metal Complexes Bearing an Unsymmetrical Salen-Type Ligand, (Z)-1-(((2-((E)-(2-Hydroxy-6-methoxybenzylidene)amino)phenyl)amino) methylene) Naphthalen-2(1H)-one. HETEROATOM CHEMISTRY 2023. [DOI: 10.1155/2023/4563958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
An unsymmetrical salen-type Schiff base ligand, (Z)-1-(((2-((E)-(2-hydroxy-6-methoxybenzylidene)amino)phenyl)amino)methylene)naphthalen-2(1H)-one, and its Zn(II), Cu(II), Co(II), Mn(II), and Fe(III) complexes were synthesized and characterized by mass (MS), nuclear magnetic resonance (NMR), infrared (IR), ultraviolet-visible (UV-Vis) spectra, and effective magnetic moments. The thermal analyses of the obtained ligand and metal complexes were conducted by thermogravimetric analysis (TGA). Antimicrobial activity of the unsymmetrical Schiff base ligand and its metal complexes were examined for Staphylococcus aureus as Gram-positive bacteria and Escherichia coli as Gram-negative bacteria. In vitro anticancer property of synthetic compounds was estimated against human cancer cell lines, a subline of Hela tumor cell line (KB), and a human liver cancer cell line (HepG-2) as well.
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Protasenko NA, Baryshnikova SV, Cherkasov AV, Poddel’skii AI. Pentacoordinated Complexes of Triphenyltin(IV) with Bidentate N-Phenyl-o-iminophenols. RUSS J COORD CHEM+ 2022. [DOI: 10.1134/s1070328422070077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Satheesh C, Murali Krishna P, Raghavendra Kumar P, Suchetan P, Shivakumar, Foro S. New ON Schiff bases and their homoleptic Zn, Ni, and Cu complexes - Synthesis, structural characterization and DNA binding studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Kargar H, Ashfaq M, Fallah-Mehrjardi M, Behjatmanesh-Ardakani R, Shahzad Munawar K, Nawaz Tahir M. Synthesis, crystal structure, spectral characterization, theoretical and computational studies of Ni(II), Cu(II) and Zn(II) complexes incorporating Schiff base ligand derived from 4-(diethylamino)salicylaldehyde. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120878] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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5
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Abu-Dief AM, El-Khatib RM, Aljohani FS, Al-Abdulkarim HA, Alzahrani S, El-Sarrag G, Ismael M. Synthesis, Structural elucidation, DFT calculation, Biological studies and DNA Interaction of Some Aryl hydrazone Cr3+, Fe3+, and Cu2+ Chelates. Comput Biol Chem 2022; 97:107643. [DOI: 10.1016/j.compbiolchem.2022.107643] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/16/2022] [Accepted: 02/09/2022] [Indexed: 12/20/2022]
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6
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Structural inspection for novel Pd(II), VO(II), Zn(II) and Cr(III)- azomethine metal chelates: DNA interaction, biological screening and theoretical treatments. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131139] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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7
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Nıbras Qader Qader I, Obalı İ, İsmet Uçan H, Uysal A, Yılmaz Obalı A, Kul M. Orto-hydroxy bioactive schiff base compounds: Design, comprehensive characterization, photophysical properties and elucidation of antimicrobial and mutagenic potentials. Bioorg Chem 2021; 119:105507. [PMID: 34836646 DOI: 10.1016/j.bioorg.2021.105507] [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: 09/28/2021] [Revised: 10/25/2021] [Accepted: 11/18/2021] [Indexed: 11/15/2022]
Abstract
Preparation and comprehensive characterization of three Schiff base ligands; with trimethoxy substitution (1E,1'E)-N,N'-(naphthalene-1,5-diyl)bis(1-(3,4,5-trimethoxyphenyl)methanimine, 1, with ortho-hydroxy substitution 6,6'-((1E,1'E)-(naphthalene-1,5-diylbis(azaneylylidene))bis(methaneylylidene))bis(2-methoxyphenol), 2 and 3,4-bis(((E)-2-hydroxy-3-methoxy benzylidene)amino)benzoicacid, 3 and their Ni(II), Cu(II), Co(II), Zn(II), Fe(II), Mn(II) complexes have been reported. Their spectral properties were studied in solution and solid-state by a combination of different analytical techniques; FT-IR spectroscopy, 1H NMR and 13C NMR spectroscopy, elemental analysis and thermal analysis. Diamagnetic and paramagnetic natures of the complexes were also determined by magnetic susceptibility measurements in solid-state. Promising photophysical properties were observed as; Amax. were recorded at 226 nm for 2; at 795 nm for 2-Ni, at 782 nm for 2-Cu, at 784 nm for 2-Co, at 702 nm for 2-Zn, at 784 nm for 2-Fe, at 702 nm for 2-Mn and at 289 nm for 3, at 786 nm for 3-Ni, at 797 nm for 3-Cu, at 746 nm for 3-Co, at 794 nm for 3-Zn, at 699 nm for 3-Fe, at 781 nm for 3-Mn ; and Imax were also recorded at; 380, 490, 725 nm for 2 and 2-Metal; 375 nm, 510 nm, 725 nm for 3 and 3-Metal when excitated at 220 nm. Antibacterial activities against different microorganisms; Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Klebsiella pneumoniae ATCC 70603, Staphylococcus aureus ATCC 43,300 (MRSA), Salmonella enteritidis ATTC 13076, Sarcina lutea ATCC 9341, Bacillus cereus ATTC 11778, and antifungal activities against Candida albicans NRRL Y-417 of the compounds 1, 2, 3, 2-Cu, 2-Fe, 3-Zn, 3-Fe were determined. Mutagenic properties of the compounds were also studied and according to the results 2-Cu and 3 have been found non-mutagenic in Ames test but also they have strong antimicrobial potential against pathogen microorganisms. For 2-Cu MIC values were ranging between 0.39 and 0.024 mg/ml and the lowest minimum inhibitory concentration (0.024 mg/ml) was determined against E. coli. The 3 numbered compound revealed strong antimicrobial activity at doses of ranging between 0.39 and 0.097 mg/ml and E. coli was the most sensitive bacterium against this chemical.
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Affiliation(s)
| | - İhsan Obalı
- Department of Biology, Science Faculty, Selcuk University, Turkey
| | - Halil İsmet Uçan
- Department of Chemistry, Science Faculty, Selcuk University, Turkey
| | - Ahmet Uysal
- Department of Medical Services and Techniques, Vocational School of Health Services, Selcuk University, Turkey
| | | | - Mustafa Kul
- Department of Medical Services and Techniques, Vocational School of Health Services, Selcuk University, Turkey
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Al-Abdulkarim HA, El-khatib RM, Aljohani FS, Mahran A, Alharbi A, Mersal GA, El-Metwaly NM, Abu-Dief AM. Optimization for synthesized quinoline-based Cr3+, VO2+, Zn2+ and Pd2+complexes: DNA interaction, biological assay and in-silico treatments for verification. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116797] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Abu-Dief AM, El-khatib RM, Aljohani FS, Alzahrani SO, Mahran A, Khalifa ME, El-Metwaly NM. Synthesis and intensive characterization for novel Zn(II), Pd(II), Cr(III) and VO(II)-Schiff base complexes; DNA-interaction, DFT, drug-likeness and molecular docking studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130693] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Abu-Dief AM, El-Metwaly NM, Alzahrani SO, Alkhatib F, Abualnaja MM, El-Dabea T, El-Remaily MAEAAA. Synthesis and characterization of Fe(III), Pd(II) and Cu(II)-thiazole complexes; DFT, pharmacophore modeling, in-vitro assay and DNA binding studies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115277] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Structural, conformational and therapeutic studies on new thiazole complexes: drug-likeness and MOE-simulation assessments. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-020-04380-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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12
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Lighvan ZM, Khonakdar HA, Heydari A, Rafiee M, Jahromi MD, Derakhshani A, Momtazi‐Borojeni AA. Spectral and molecular docking studies of nucleic acids/protein binding interactions of a novel organometallic palladium (II) complex containing bioactive PTA ligands: Its synthesis, anticancer effects and encapsulation in albumin nanoparticles. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Zohreh Mehri Lighvan
- Department of Polymer Processing Iran Polymer and Petrochemical Institute P.O. Box 14965‐115 Tehran Iran
| | - Hossein Ali Khonakdar
- Department of Polymer Processing Iran Polymer and Petrochemical Institute P.O. Box 14965‐115 Tehran Iran
- Leibniz‐Institut für Polymerforschung Dresdene. V Hohe Straße 6, D‐01069 Dresden Germany
| | - Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences Dúbravská cesta 9 Bratislava 845 41 Slovakia
| | - Mina Rafiee
- Department of Chemistry Isfahan University of Technology Isfahan 84156/83111 Iran
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Benabid W, Ouari K, Bendia S, Bourzami R, Ait Ali M. Crystal structure, spectroscopic studies, DFT calculations, cyclic voltammetry and biological activity of a copper (II) Schiff base complex. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127313] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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14
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A robust
in vitro
Anticancer, Antioxidant and Antimicrobial Agents Based on New Metal‐Azomethine Chelates Incorporating Ag(I), Pd (II) and VO (II) Cations: Probing the Aspects of DNA Interaction. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5373] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Fathima SSA, Meeran MMS, Nagarajan ER. Synthesis, characterization and biological evaluation of novel 2,2′-((1,2-diphenylethane-1,2-diylidene)bis(azanylylidene))bis(pyridin-3-ol)and metal complexes: molecular docking and in silico ADMET profile. Struct Chem 2019. [DOI: 10.1007/s11224-019-01425-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Sen P, Akagunduz D, Aghdam AS, Cebeci FÇ, Nyokong T, Catal T. Synthesis of Novel Schiff Base Cobalt (II) and Iron (III) Complexes as Cathode Catalysts for Microbial Fuel Cell Applications. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01286-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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17
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Matada MN, Jathi K. Pyrazole-based azo-metal(II) complexes as potential bioactive agents: synthesis, characterization, antimicrobial, anti-tuberculosis, and DNA interaction studies. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1630613] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mallikarjuna Niluvanji Matada
- Department of PG Studies and Research in Chemistry, School of Chemical Sciences, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Karnataka, India
| | - Keshavayya Jathi
- Department of PG Studies and Research in Chemistry, School of Chemical Sciences, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Karnataka, India
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18
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Redox-cycling and intercalating properties of novel mixed copper(II) complexes with non-steroidal anti-inflammatory drugs tolfenamic, mefenamic and flufenamic acids and phenanthroline functionality: Structure, SOD-mimetic activity, interaction with albumin, DNA damage study and anticancer activity. J Inorg Biochem 2019; 194:97-113. [DOI: 10.1016/j.jinorgbio.2019.02.010] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/15/2019] [Accepted: 02/18/2019] [Indexed: 12/21/2022]
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19
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Abdel-Rahman LH, Abu-Dief AM, Shehata MR, Atlam FM, Abdel-Mawgoud AAH. Some new Ag(I), VO(II) and Pd(II) chelates incorporating tridentate imine ligand: Design, synthesis, structure elucidation, density functional theory calculations for DNA interaction, antimicrobial and anticancer activities and molecular docking studies. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4699] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
| | - Ahmed M. Abu-Dief
- Chemistry Department, Faculty of Science; Sohag University; 82524 Egypt
| | | | - Faten M. Atlam
- Department of Chemistry, Faculty of Science; Tanta University; Tanta Egypt
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Zayed EM, Zayed MA, Hindy AM, Mohamed GG. Coordination behaviour and biological activity studies involving theoretical docking of bis-Schiff base ligand and some of its transition metal complexes. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4603] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ehab M. Zayed
- Green Chemistry Department; National Research Centre; 33 El Bohouth str. (former El Tahrir str.), Dokki, PO 12622 Giza Egypt
| | - Mohamed A. Zayed
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Ahmed M.M. Hindy
- 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 12588 6th October, Giza Egypt
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Arunadevi A, Paulpandiyan R, Raman N. Probing of effective pyrazolone based metallonucleases: Molecular docking and in vitro
biological critiques. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alagarraj Arunadevi
- Research Department of Chemistry; VHNSN College; Virudhunagar -626 001 India
| | | | - Natarajan Raman
- Research Department of Chemistry; VHNSN College; Virudhunagar -626 001 India
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22
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Valentová J, Varényi S, Herich P, Baran P, Bilková A, Kožíšek J, Habala L. Synthesis, structures and biological activity of copper(II) and zinc(II) Schiff base complexes derived from aminocyclohexane-1-carboxylic acid. New type of geometrical isomerism in polynuclear complexes. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.04.058] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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23
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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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Novel Schiff base metal complexes: synthesis, characterization, DNA binding, DNA cleavage and molecular docking studies. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1338-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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25
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Kumaravel G, Ponya Utthra P, Raman N. Exploiting the biological efficacy of benzimidazole based Schiff base complexes with l-Histidine as a co-ligand: Combined molecular docking, DNA interaction, antimicrobial and cytotoxic studies. Bioorg Chem 2018; 77:269-279. [PMID: 29421702 DOI: 10.1016/j.bioorg.2018.01.024] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/03/2018] [Accepted: 01/14/2018] [Indexed: 10/18/2022]
Abstract
Four new metal complexes were synthesized and screened for their cytotoxic activity after sufficient assertion from the preliminary DNA binding studies. The metal complexes could bind to CT-DNA through intercalation binding mode. This has also been confirmed by the molecular docking studies. The DNA cleavage efficiencies of these complexes with pBR322 DNA were investigated by gel electrophoresis. The complexes were found to promote the cleavage of pBR322 DNA from the supercoiled form I to the open circular form II in the presence of an oxidizing agent (H2O2). The in vitro chemosensitivity of the studied complexes exhibits significant cytotoxic effects, compared to those reported for cisplatin. These findings represent a prompting to search for the probable interaction of these complexes with other cellular elements of fundamental consequence in cell proliferation. The in vitro anticancer activities indicate that the Cu(II) complex is active against the selected human tumor cell lines, and the order of in vitro anticancer activities is consistent with the DNA-binding affinities. Towards noncancerous cell line, Cu(II) complex exhibits very low toxicity. On the other hand all the complexes have been found to exhibit cytotoxic effects against cancerous cell lines with potency more than that of the widely used drug cisplatin and hence they have the potential to act as promising anticancer agents. Captivatingly, they are non-toxic to normal cell lymphocytes revealing that they are selective in killing only the cancer cells.
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Affiliation(s)
- Ganesan Kumaravel
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, India
| | | | - Natarajan Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, India.
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Gaber M, El-Ghamry HA, Fathalla SK, Mansour MA. Synthesis, spectroscopic, thermal and molecular modeling studies of Zn 2+ , Cd 2+ and UO 2 2+ complexes of Schiff bases containing triazole moiety. Antimicrobial, anticancer, antioxidant and DNA binding studies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 83:78-89. [DOI: 10.1016/j.msec.2017.11.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 09/20/2017] [Accepted: 11/09/2017] [Indexed: 12/19/2022]
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27
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Tadavi SK, Yadav AA, Bendre RS. Synthesis and characterization of a novel schiff base of 1,2-diaminopropane with substituted salicyaldehyde and its transition metal complexes: Single crystal structures and biological activities. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.112] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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28
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Synthesis, characterization, cytotoxicity, DNA binding and computational studies of an anionic palladium(II) complex derived from 8-hydroxyquinoline and 1,1-cyclobutanedicarboxylate. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1269-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Saeidifar M, Mirzaei H, Ahmadi Nasab N, Mansouri-Torshizi H. Mononuclear Pd(II) complex as a new therapeutic agent: Synthesis, characterization, biological activity, spectral and DNA binding approaches. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.139] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Metal based biologically active compounds: Design, synthesis, DNA binding and antidiabetic activity of 6-methyl-3-formyl chromone derived hydrazones and their metal (II) complexes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 175:178-191. [DOI: 10.1016/j.jphotobiol.2017.09.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 08/29/2017] [Accepted: 09/01/2017] [Indexed: 10/18/2022]
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31
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Konakanchi R, Mallela R, Guda R, Kotha LR. Synthesis, characterization, biological screening and molecular docking studies of 2-aminonicotinaldehyde (ANA) and its metal complexes. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3089-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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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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33
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Xu Y, Zhang H, Shen K, Mao S, Shi X, Wu H. Four-, five- and six-coordinated transition metal complexes based on naphthalimide Schiff base ligands: Synthesis, crystal structure and properties. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3902] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Yuling Xu
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 People's Republic of China
| | - Han Zhang
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 People's Republic of China
| | - Kesheng Shen
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 People's Republic of China
| | - Shanshan Mao
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 People's Republic of China
| | - Xinkui Shi
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 People's Republic of China
| | - Huilu Wu
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou Gansu 730070 People's Republic of China
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Dhayabaran VV, Prakash TD. Synthesis and multi‐spectroscopic study on DNA‐binding, cleavage and biological properties of M(II) complexes based on N
2
O
2
donor Schiff base ligand. LUMINESCENCE 2017; 32:1339-1348. [DOI: 10.1002/bio.3330] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 01/30/2017] [Accepted: 03/05/2017] [Indexed: 12/16/2022]
Affiliation(s)
- V. Violet Dhayabaran
- PG and Research Department of Chemistry Bishop Heber College Tiruchirappalli India
| | - T. Daniel Prakash
- PG and Research Department of Chemistry Bishop Heber College Tiruchirappalli India
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Ambili K, Sithambaresan M, Kurup MP. Interplay of bifurcated hydrogen bonds in making of inclusion/pseudo-inclusion complexes of Ni(II), Cu(II) and Zn(II) of a salophen type ligand: Crystal structures and spectral aspects. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Tohidiyan Z, Sheikhshoaie I, Khaleghi M, Mague JT. A novel copper (II) complex containing a tetradentate Schiff base: Synthesis, spectroscopy, crystal structure, DFT study, biological activity and preparation of its nano-sized metal oxide. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.01.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Asadi Z, Haddadi E, Sedaghat M. Substitution of PPh3+ as a lipophilic cation on new water-soluble Co(II) and Zn(II) Schiff base complexes: Effect of central metal and substitutional group of ligand on DNA-complex interaction. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.01.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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38
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Mohanraj M, Ayyannan G, Raja G, Jayabalakrishnan C. Synthesis, characterization and in vitro
biological assays of copper(II) and nickel(II) complexes with furan-2-carboxylic acid hydrazide. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3582] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Maruthachalam Mohanraj
- Post Graduate and Research Department of Chemistry; Sri Ramakrishna Mission Vidyalaya College of Arts and Science; Coimbatore 641 020 Tamil Nadu India
| | - Ganesan Ayyannan
- Post Graduate and Research Department of Chemistry; Sri Ramakrishna Mission Vidyalaya College of Arts and Science; Coimbatore 641 020 Tamil Nadu India
| | - Gunasekaran Raja
- Post Graduate and Research Department of Chemistry; Sri Ramakrishna Mission Vidyalaya College of Arts and Science; Coimbatore 641 020 Tamil Nadu India
| | - Chinnasamy Jayabalakrishnan
- Post Graduate and Research Department of Chemistry; Sri Ramakrishna Mission Vidyalaya College of Arts and Science; Coimbatore 641 020 Tamil Nadu India
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Niu M, Li Z, Li X, Huang X. Two chiral alkanolamine Schiff base Cu(ii) complexes as potential anticancer agents: synthesis, structure, DNA/protein interactions, and cytotoxic activity. RSC Adv 2016. [DOI: 10.1039/c6ra17830h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two novel chiral copper complexes have been synthesized and expressed DNA/protein binding strength and substantial cytotoxic activity.
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Affiliation(s)
- Meiju Niu
- School of Chemistry and Chemical Engineering
- Liaocheng University
- China
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- Liaocheng University
| | - Zhen Li
- School of Chemistry and Chemical Engineering
- Liaocheng University
- China
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- Liaocheng University
| | - Xiao Li
- School of Chemistry and Chemical Engineering
- Liaocheng University
- China
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- Liaocheng University
| | - Xianqiang Huang
- School of Chemistry and Chemical Engineering
- Liaocheng University
- China
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- Liaocheng University
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40
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Li Z, Niu M, Chang G, Zhao C. Chiral manganese (IV) complexes derived from Schiff base ligands: Synthesis, characterization, in vitro cytotoxicity and DNA/BSA interaction. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 153:473-82. [PMID: 26596505 DOI: 10.1016/j.jphotobiol.2015.11.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 12/15/2022]
Abstract
Two new couples of chiral manganese (IV) complexes with Schiff-base ligands, Λ-[Mn(R-L(1))2]·2(CH3OH) (Λ-1) and Δ-[Mn(S-L(1))2]·2(CH3OH) (Δ-1), Λ-[Mn(R-L(2))2]·(H2O)2 (Λ-2) and Δ-[Mn(S-L(2))2]·(H2O)2 (Δ-2), {H2L(1)=(R/S)-(±)-1-[(1-hydroxymethyl-propylimino)-methyl]-naphthalen-2-ol, H2L(2)=(R/S)-(±)-1-[(1-Hydroxymethyl-2-phenyl-ethylimino)-methyl]-naphthalen-2-ol} have been synthesized, and fully characterized by elemental analyses, UV-Vis spectrum, circular dichroism spectrum, FT-IR spectrum, mass spectrum, and single crystal X-ray diffraction (SXRD). The interaction of the four chiral Mn (IV) complexes with CT-DNA and BSA were also investigated by various spectroscopic techniques (UV-visible, fluorescence spectroscopic). The results show that the Δ-complexes exhibit more efficient CT-DNA interaction with respect to the Λ-complexes. All the complexes could quench the intrinsic fluorescence of BSA by a static quenching process. In addition, the vitro cytotoxicity of these complexes toward four kinds of cancerous cell lines (A549, HeLa, HL-60, and Caco-2) was assayed by the MTT method, which exhibited to be selectively active against certain cell lines.
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Affiliation(s)
- Zhen Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Meiju Niu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
| | - Guoliang Chang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Changqiu Zhao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
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Rehman SU, Sarwar T, Husain MA, Ishqi HM, Tabish M. Studying non-covalent drug-DNA interactions. Arch Biochem Biophys 2015; 576:49-60. [PMID: 25951786 DOI: 10.1016/j.abb.2015.03.024] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 03/09/2015] [Accepted: 03/28/2015] [Indexed: 12/14/2022]
Abstract
Drug-DNA interactions have been extensively studied in the recent past. Various techniques have been employed to decipher these interactions. DNA is a major target for a wide range of drugs that may specifically or non-specifically interact with DNA and affect its functions. Interaction between small molecules and DNA are of two types, covalent interactions and non-covalent interactions. Three major modes of non-covalent interactions are electrostatic interactions, groove binding and intercalative binding. This review primarily focuses on discussing various techniques used to study non-covalent interactions that occur between drugs and DNA. Additionally, we report several techniques that may be employed to analyse the binding mode of a drug with DNA. These techniques provide data that are reliable and simple to interpret.
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Affiliation(s)
- Sayeed Ur Rehman
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, U.P. 202002, India
| | - Tarique Sarwar
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, U.P. 202002, India
| | - Mohammed Amir Husain
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, U.P. 202002, India
| | - Hassan Mubarak Ishqi
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, U.P. 202002, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, U.P. 202002, India.
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42
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Gaber M, El-Ghamry H, Atlam F, Fathalla S. Synthesis, spectral and theoretical studies of Ni(II), Pd(II) and Pt(II) complexes of 5-mercapto-1,2,4-triazole-3-imine-2'-hydroxynaphthaline. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:919-929. [PMID: 25282021 DOI: 10.1016/j.saa.2014.09.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 09/04/2014] [Accepted: 09/10/2014] [Indexed: 06/03/2023]
Abstract
Ni(II), Pd(II) and Pt(II) complexes of 5-mercapto-1,2,4-triazole-3-imine-2'-hydroxynaphthaline have been isolated and characterized by elemental analysis, IR, (1)H NMR, EI-mass, UV-vis, molar conductance, magnetic moment measurements and thermogravimetric analysis. The molar conductance values indicated that the complexes are non-electrolytes. The magnetic moment values of the complexes displayed diamagnetic behavior for Pd(II) and Pt(II) complexes and tetrahedral geometrical structure for Ni(II) complex. From the bioinorganic applications point of view, the interaction of the ligand and its metal complexes with CT-DNA was investigated using absorption and viscosity titration techniques. The Schiff-base ligand and its metal complexes have also been screened for their antimicrobial and antitumor activities. Also, theoretical investigation of molecular and electronic structures of the studied ligand and its metal complexes has been carried out. Molecular orbital calculations were performed using DFT (density functional theory) at B3LYP level with standard 6-31G(d,p) and LANL2DZ basis sets to access reliable results to the experimental values. The calculations were performed to obtain the optimized molecular geometry, charge density distribution, extent of distortion from regular geometry, the highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO), Mulliken atomic charges, reactivity index (ΔE), dipole moment (D), global hardness (η), softness (σ), electrophilicity index (ω), chemical potential and Mulliken electronegativity (χ).
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Affiliation(s)
- Mohamed Gaber
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Hoda El-Ghamry
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt; Chemistry Department, Faculty of Applied Science, Umm Al-Qura University, Saudi Arabia.
| | - Faten Atlam
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Shaimaa Fathalla
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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Sarwar T, Husain MA, Rehman SU, Ishqi HM, Tabish M. Multi-spectroscopic and molecular modelling studies on the interaction of esculetin with calf thymus DNA. MOLECULAR BIOSYSTEMS 2015; 11:522-31. [DOI: 10.1039/c4mb00636d] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Minor groove binding of esculetin with Ct-DNA was established by a series of in vitro experiments and in silico analyses.
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Affiliation(s)
- Tarique Sarwar
- Department of Biochemistry
- Faculty of Life Sciences
- A.M. University
- Aligarh
- India
| | | | - Sayeed Ur Rehman
- Department of Biochemistry
- Faculty of Life Sciences
- A.M. University
- Aligarh
- India
| | | | - Mohammad Tabish
- Department of Biochemistry
- Faculty of Life Sciences
- A.M. University
- Aligarh
- India
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Sohrabi N, Rasouli N, Kamkar M. Synthesis, Characterization and DNA Interaction Studies of (N,N'-Bis(5-phenylazosalicylaldehyde)-ethylenediamine) Cobalt(II) Complex. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.8.2523] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Sönmez M, Sogukomerogullari HG, Öztemel F, Berber İ. Synthesis and biological evaluation of a novel ONS tridentate Schiff base bearing pyrimidine ring and some metal complexes. Med Chem Res 2014. [DOI: 10.1007/s00044-014-0925-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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46
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Dhanaraj CJ, Johnson J. Synthesis, characterization, electrochemical and biological studies on some metal(II) Schiff base complexes containing quinoxaline moiety. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 118:624-631. [PMID: 24095772 DOI: 10.1016/j.saa.2013.09.007] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 08/21/2013] [Accepted: 09/02/2013] [Indexed: 06/02/2023]
Abstract
Novel Co(II), Ni(II), Cu(II) and Zn(II) complexes of Schiff base derived from quinoxaline-2,3-(1,4H)-dione and 4-aminoantipyrine (QDAAP) were synthesized. The ligand and its complexes were characterized by elemental analyses, molar conductance, magnetic susceptibility measurements, FTIR, UV-Vis., mass and (1)H NMR spectral studies. The X band ESR spectrum of the Cu(II) complex at 300 and 77K were also recorded. Thermal studies of the ligand and its complexes show the presence of coordinated water in the Ni(II) and Zn(II) complexes. The coordination behavior of QDAAP is also discussed. All the complexes are mono nuclear and tetrahedral geometry was found for Co(II) complex. For the Ni(II) and Zn(II) complexes, octahedral geometry was assigned and for the Cu(II) complex, square planar geometry has been suggested. The grain size of the complexes was estimated using powder XRD. The surface morphology of the compounds was studied using SEM analysis. Electrochemical behavior of the synthesized complexes in DMF at room temperature was investigated by cyclic voltammetry. The in vitro biological screening of QDAAP and its metal complexes were tested against bacterial species Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. The fungal species include Aspergillus niger, Aspergillus flavus and Candida albicans. The DNA cleavage activity of QDAAP and its complexes were also discussed.
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Affiliation(s)
- Chellaian Justin Dhanaraj
- Department of Chemistry, University College of Engineering Nagercoil, Anna University, Tirunelveli Region, Konam, Nagercoil 629 004, Tamil Nadu, India.
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Shebl M. Synthesis, spectroscopic characterization and antimicrobial activity of binuclear metal complexes of a new asymmetrical Schiff base ligand: DNA binding affinity of copper(II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 117:127-137. [PMID: 23988527 DOI: 10.1016/j.saa.2013.07.107] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 07/23/2013] [Accepted: 07/31/2013] [Indexed: 06/02/2023]
Abstract
The 1:1 condensation of o-acetoacetylphenol and 1,2-diaminopropane under condition of high dilution gives the mono-condensed Schiff base, (E)-3-(1-aminopropan-2-ylimino)-1-(2-hydroxyphenyl)butan-1-one. The mono-condensed Schiff base has been used for further condensation with isatin to obtain the new asymmetrical dicompartmental Schiff base ligand, (E)-3-(2-((E)-4-(2-hydroxyphenyl)-4-oxobutan-2-ylideneamino) propylimino)indolin-2-one (H3L) with a N2O3 donor set. Reactions of the ligand with metal salts give a series of new binuclear complexes. The ligand and its metal complexes were characterized by elemental analyses, IR, (1)H and (13)C NMR, electronic, ESR and mass spectra, conductivity and magnetic susceptibility measurements as well as thermal analyses. The analytical and spectroscopic tools showed that the complexes can be formulated as: [(HL)(VO)2(SO4)(H2O)]·4H2O, [(HL)Fe2Cl4(H2O)3]·EtOH, [(HL)Fe2(ox)Cl2(H2O)3]·2H2O, [(L)M2(OAc)(H2O)m]·nH2O; M=Co, Ni or Cu, m=4, 0 and n=2, 3, [(HL)Cu2Cl]Cl·6H2O and [(L)(UO2)2(OAc)(H2O)3]·6H2O. The metal complexes exhibited octahedral geometrical arrangements except copper complexes that exhibited tetrahedral geometries and uranyl complex in which the metal ion is octa-coordinated. The Schiff base and its metal complexes were evaluated for antimicrobial activity against Gram positive bacteria (Staphylococcus aureus), Gram negative bacteria (Escherichia coli) and fungi (Candida albicans and Aspergillus flavus). The ligand and some of its complexes were found to be biologically active. The DNA-binding properties of the copper complexes (6 and 7) have been investigated by electronic absorption, fluorescence and viscosity measurements. The results obtained indicate that these complexes bind to DNA via an intercalation binding mode with an intrinsic binding constant, Kb of 1.34×10(4) and 2.5×10(4) M(-1), respectively.
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Affiliation(s)
- Magdy Shebl
- Chemistry Department, Faculty of Education, Ain Shams University, Roxy, Cairo 11341, Egypt.
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48
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Leelavathy C, Arul Antony S. Synthesis, spectral characterization and biological activity of metal(II) complexes with 4-aminoantipyrine derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 113:346-355. [PMID: 23743041 DOI: 10.1016/j.saa.2013.04.055] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 04/01/2013] [Accepted: 04/10/2013] [Indexed: 06/02/2023]
Abstract
Novel metal(II) complexes derived from furfurylidene-4-aminoantipyrine and 2-aminobenzothiazole were synthesized and characterized by spectroscopic (IR, (1)H NMR, UV-Vis., ESR and DART-MS) and other analytical methods. IR spectral studies indicate the binding sites of the ligand with the metal ion. Molar conductance data and magnetic susceptibility measurements provide evidence for monomeric and neutral nature of the complexes. The X band ESR spectrum of the Cu(II) complex at 300 and 77K was recorded. The electrochemical behaviour of the complexes in MeCN at 298 K was studied. Thermal studies of the ligand and its complexes show the presence of coordinated water in the complexes. The grain size of the complex was calculated by Scherrer formula using powder XRD. The surface morphology of the complexes was studied using SEM. The in vitro biological screening of the ligand and its complexes were tested against bacterial species S. aureus, E. coli, K. pneumoniae, P. vulgaris and P. aeruginosa and fungal species A. niger, R. stolonifer, A. flavus, R. bataicola and C. albicans. The DNA binding and cleavage activity of the ligand and its complexes were studied. Super oxide dismutase (SOD) activities of the ligand and its complexes have also been measured.
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Affiliation(s)
- C Leelavathy
- Department of Chemistry, Quaid-e-Millath Government College (W), Chennai 600 002, Tamil Nadu, India
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49
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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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50
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Yadav S, Ahmad M, Siddiqi KS. Metal-ion directed synthesis of N2O2 type chelate complexes of Ni(II), Cu(II) and Zn(II): spectral, thermal and single crystal studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 98:240-246. [PMID: 22960327 DOI: 10.1016/j.saa.2012.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 08/01/2012] [Accepted: 08/07/2012] [Indexed: 06/01/2023]
Abstract
A set of Ni(II), Cu(II) and Zn(II) complexes of Schiff base have been synthesized by one pot condensation reaction of 2-hydroxy-4-methoxybenzophenone with 1,3-diaminopropane in 1:2:1 molar ratio. They have been characterized by elemental analysis, conductance measurement, thermal analysis (TGA/DTA), FT-IR, (1)H-NMR, EPR spectra, ESI-MS and electronic spectral studies. In order to establish the geometry, a single crystal X-ray structure for [Ni(L)] complex was determined. It crystallizes in monoclinic system having unit cell parameters a=14.015(5)Å, b=13.391(5)Å, c=14.931(5)Å and α=90.000(5)(o), β=112.237(5)(o), γ=90.000(5)(o) with P 2(1)/c space group. No π-π stacking interaction was obtained in molecular packing diagram. A square-planar geometry has been confirmed for Ni(II) complex. Furthermore, on the basis of elemental analysis, IR, UV-visible and EPR data a square-planar geometry for Cu(II) and a distorted octahedral geometry for the Zn(II) complex has been established. In case of Zn(II) complex NO(3)(-) group was found to be coordinated in monodentate fashion. The low molar conductivity values of the complexes measured in chloroform and DMSO suggest their non-ionic nature.
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Affiliation(s)
- Seema Yadav
- Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, India
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