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Samy F, Shebl M. Co (II), Ni (II) and Cu (II) complexes of 4,6‐bis(2‐hydroxynaphthalen‐1‐yl)methyl‐ene)hydrazono)ethyl)benzene‐1,3‐diol: Synthesis, spectroscopic, biological and theoretical studies. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fatma Samy
- Department of Chemistry, Faculty of Education Ain Shams University Cairo Egypt
| | - Magdy Shebl
- Department of Chemistry, Faculty of Education Ain Shams University Cairo Egypt
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2
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Taha ZA, Hijazi AK, Al-Smadi AY, Al-Momani WM, Wedian F. Lanthanide Complexes with N,N-Bis-(2-hydroxy-5-nitrobenzylidene)-1,2-phenylenediamine Schiff Base Ligand: Synthesis, Characterization, Photophysical Properties, and Biological Activity. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221110177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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3
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Keypour MM, Forouzandeh F, Azadbakht R, Khanabadi J, Moghadam MA. Synthesis and characterization of a new piperazine containing macroacyclic ligand and its Cu(ii) and Co(ii) complexes: An investigation of the ligand's silver specific fluorescent properties. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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4
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Hashimoto PK, Oliveira LF, Riga-Rocha BA, Machado AEH, Santana VT, Nascimento OR, Carvalho-Jr VP, Goi BE. Manganese( ii) Schiff-base-mediated reversible deactivation controlled radical polymerization of vinyl acetate. NEW J CHEM 2021. [DOI: 10.1039/d1nj00493j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The manganese Schiff-base complexes were applied in the OMRP of vinyl acetate.
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Affiliation(s)
- Patricia K. Hashimoto
- Faculdade de Ciências e Tecnologia
- UNESP – Univ. Estadual Paulista
- Presidente Prudente
- Brazil
| | - Larissa F. Oliveira
- Faculdade de Ciências e Tecnologia
- UNESP – Univ. Estadual Paulista
- Presidente Prudente
- Brazil
| | - Beatriz A. Riga-Rocha
- Faculdade de Ciências e Tecnologia
- UNESP – Univ. Estadual Paulista
- Presidente Prudente
- Brazil
| | | | - Vinicius T. Santana
- CEITEC – Central European Institute of Technology
- Brno University of Technology
- 61200 Brno
- Czech Republic
| | | | | | - Beatriz E. Goi
- Faculdade de Ciências e Tecnologia
- UNESP – Univ. Estadual Paulista
- Presidente Prudente
- Brazil
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Martin CS, Olean-Oliveira A, Teixeira MF. A new polymeric thin film by using electropolymerization: thin film of poly(phenazine-salen) obtained from 2,2'-[1,2-ethanediylbis(nitrilomethylidyne)] -bis[4-amino-phenol]. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Synthesis, Characterization and Antibacterial Activity of Schiff Base, 4-Chloro-2-{(E)-[(4-Fluorophenyl)imino]methyl}phenol Metal (II) Complexes. J CHEM-NY 2020. [DOI: 10.1155/2020/1745236] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A new series of Mn (II), Co (II), Ni (II), Cu (II), and Zn (II) complexes of the Schiff base ligand, 4-chloro-2-{(E)-[(4-fluorophenyl)imino]methyl}phenol (C13H9ClFNO), was synthesized in a methanolic medium. The Schiff base was derived from the condensation reaction of 5-chlorosalicylaldehyde and 4-fluoroaniline at room temperature. Elemental analysis, FT-IR, UV-Vis, and NMR spectral data, molar conductance measurements, and melting points were used to characterize the Schiff base and the metal complexes. From the elemental analysis data, the metal complexes formed had the general formulae [M(L)2(H2O)2], where L = Schiff base ligand (C13H9ClFNO) and M = Mn, Co, Ni, Cu, and Zn. On the basis of FT-IR, electronic spectra, and NMR data, “O” and “N” donor atoms of the Schiff base ligand participated in coordination with the metal (II) ions, and thus, a six coordinated octahedral geometry for all these complexes was proposed. Molar conductance studies on the complexes indicated they were nonelectrolytic in nature. The Schiff base ligand and its metal (II) complexes were tested in vitro to evaluate their bactericidal activity against Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive bacteria (Bacillus subtilis and Staphylococcus typhi) using the disc diffusion method. The antibacterial evaluation results revealed that the metal (II) complexes exhibited higher antibacterial activity than the free Schiff base ligand.
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González-Hernández A, León-Martínez M, Barba V. Synthesis, characterization and structural analysis of bis-schiff bases using 3,3′-methylendianiline and salicylaldehyde derivatives. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.01.061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Synthesis and characterization of a new diimine Schiff base and its Cu2+ and Fe3+ complexes: Investigation of their photoluminescence, conductance, spectrophotometric and sensor behaviors. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Synthesis, spectral characterization, antimicrobial, DNA interactions and molecular modeling studies of metal complexes of 1, 3-benzothiazole carbohydrazone. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1437-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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10
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Naeimi H, Karshenas A. Facile preparation and characterization of some novel Schiff base complexes of uranyl(II), nickel(II), and zinc(II) ions. INORG NANO-MET CHEM 2017. [DOI: 10.1080/24701556.2017.1357587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hossein Naeimi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Azam Karshenas
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
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Weng Z, Zhang CL, Zhang HY, Zhou Y, Zhang SH. Syntheses, crystal structures, and spectroscopic properties of two new complexes based on 5-hydroxyisophthalic acid. INORG NANO-MET CHEM 2017. [DOI: 10.1080/15533174.2016.1186060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Zhehui Weng
- Department of Chemical Science & Technology, Kunming University, Kunming, Yunnan, P. R. China
- College of Chemistry and Bioengineering (Guangxi Key Laboratory of Electrochemistry and Magnetic Chemistry Functional Materials), Guilin University of Technology, Guilin, P. R. China
| | - Chun Lian Zhang
- College of Chemistry and Bioengineering (Guangxi Key Laboratory of Electrochemistry and Magnetic Chemistry Functional Materials), Guilin University of Technology, Guilin, P. R. China
| | - Hai Yang Zhang
- College of Chemistry and Bioengineering (Guangxi Key Laboratory of Electrochemistry and Magnetic Chemistry Functional Materials), Guilin University of Technology, Guilin, P. R. China
| | - Yanqing Zhou
- Department of Chemical Science & Technology, Kunming University, Kunming, Yunnan, P. R. China
| | - Shu Hua Zhang
- College of Chemistry and Bioengineering (Guangxi Key Laboratory of Electrochemistry and Magnetic Chemistry Functional Materials), Guilin University of Technology, Guilin, P. R. China
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Idemudia OG, Sadimenko AP, Hosten EC. Metal Complexes of New Bioactive Pyrazolone Phenylhydrazones; Crystal Structure of 4-Acetyl-3-methyl-1-phenyl-2-pyrazoline-5-one phenylhydrazone Ampp-Ph. Int J Mol Sci 2016; 17:ijms17050687. [PMID: 27213342 PMCID: PMC4881513 DOI: 10.3390/ijms17050687] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 04/16/2016] [Accepted: 04/22/2016] [Indexed: 12/12/2022] Open
Abstract
The condensation reaction of phenylhydrazine and dinitrophenylhydrazine with 4-acetyl and 4-benzoyl pyrazolone precipitated air-stable acetyldinitrophenylhydrazone Ampp-Dh, benzoylphenylhydrazone Bmpp-Ph and benzoyldinitrophenylhydrazone Bmpp-Dh in their keto imine form; a study inspired by the burning interest for the development of new bioactive materials with novel properties that may become alternative therapeutic agents. Elemental analysis, FTIR, 1H, and 13C NMR, and mass spectroscopy have been used to justify their proposed chemical structures, which were in agreement with the single crystal structure of Bmpp-Dh earlier reported according to X-ray crystallography. The single crystal structure of 4-acetyl-3-methyl-1-phenyl--pyrazoline-5-one phenylhydrazone Ampp-Ph, which crystallizes in a triclinic crystal system with a P-1 (No. 2) space group is presented. Octahedral Mn(II), Ni(II), Co(II), and Cu(II) complexes of these respective ligands with two molecules each of the bidentate Schiff base, coordinating to the metal ion through the azomethine nitrogen C=N and the keto oxygen C=O, which were afforded by the reaction of aqueous solutions of the corresponding metal salts with the ligands are also reported. Their identity and proposed structures were according to elemental analysis, FTIR spectroscopy, UV-VIS spectrophotometry (electronic spectra) and Bohr magnetic moments, as well as thermogravimetric analysis (TGA) results. A look at the antibacterial and antioxidant activities of synthesized compounds using the methods of the disc diffusion against some selected bacterial isolates and 1,1-diphenyl-2-picryl-hydrazil (DPPH) respectively, showed biological activities in relation to employed standard medicinal drugs.
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Affiliation(s)
- Omoruyi G Idemudia
- Chemistry Department, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa.
| | - Alexander P Sadimenko
- Chemistry Department, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa.
| | - Eric C Hosten
- Chemistry Department, Nelson Mandela Metropolitan University, Summerstrand Campus, P.O Box 77000, Port Elizabeth 6031, South Africa.
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Ravi M, Chennam KP, Ushaiah B, Eslavath RK, Perugu S, Ajumeera R, Devi CS. A Study on Spectro-Analytical Aspects, DNA - Interaction, Photo-Cleavage, Radical Scavenging, Cytotoxic Activities, Antibacterial and Docking Properties of 3 - (1 - (6 - methoxybenzo [d] thiazol - 2 - ylimino) ethyl) - 6 - methyl - 3H - pyran - 2, 4 - dione and its Metal Complexes. J Fluoresc 2015; 25:1279-96. [PMID: 26315729 DOI: 10.1007/s10895-015-1616-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 07/05/2015] [Indexed: 12/21/2022]
Abstract
The focus of the present work is on the design, synthesis, characterization, DNA-interaction, photo-cleavage, radical scavenging, in-vitro cytotoxicity, antimicrobial, docking and kinetic studies of Cu (II), Cd (II), Ce (IV) and Zr (IV) metal complexes of an imine derivative, 3 - (1 - (6 - methoxybenzo [d] thiazol - 2 - ylimino) ethyl) - 6 - methyl - 3H - pyran - 2, 4 - dione. The investigation of metal ligand interactions for the determination of composition of metal complexes, corresponding kinetic studies and antioxidant activity in solution was carried out by spectrophotometric methods. The synthesized metal complexes were characterized by EDX analysis, Mass, IR, (1)H-NMR, (13)C-NMR and UV-Visible spectra. DNA binding studies of metal complexes with Calf thymus (CT) DNA were carried out at room temperature by employing UV-Vis electron absorption, fluorescence emission and viscosity measurement techniques. The results revealed that these complexes interact with DNA through intercalation. The results of in vitro antibacterial studies showed the enhanced activity of chelating agent in metal chelated form and thus inferring scope for further development of new therapeutic drugs. Cell viability experiments indicated that all complexes showed significant dose dependent cytotoxicity in selected cell lines. The molecular modeling and docking studies were carried out with energy minimized structures of metal complexes to identify the receptor to metal interactions.
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Affiliation(s)
- Mudavath Ravi
- Department of Chemistry, Osmania University, Hyderabad, 500 007, Telangana, India
| | | | - B Ushaiah
- Department of Chemistry, Osmania University, Hyderabad, 500 007, Telangana, India
| | - Ravi Kumar Eslavath
- Department of Bio-Chemistry, Osmania University, Hyderabad, 500 007, Telangana, India
| | - Shyam Perugu
- Department of Bio-Chemistry, Osmania University, Hyderabad, 500 007, Telangana, India
| | - Rajanna Ajumeera
- National Institute of Nutrition, Hyderabad, 500 007, Telangana, India
| | - Ch Sarala Devi
- Department of Chemistry, Osmania University, Hyderabad, 500 007, Telangana, India.
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Synthesis and Characterization of Bioactive Acylpyrazolone Sulfanilamides and Their Transition Metal Complexes: Single Crystal Structure of 4-Benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one Sulfanilamide. Bioinorg Chem Appl 2015; 2015:717089. [PMID: 26106285 PMCID: PMC4461752 DOI: 10.1155/2015/717089] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Accepted: 04/25/2015] [Indexed: 11/30/2022] Open
Abstract
Two Schiff base ligands Ampp-Sn 1 and Bmpp-Sn 2, afforded by a condensation reaction between sulfanilamide and the respective acylpyrazolone carbonyl precursors, their Mn(II), Co(II), Ni(II), and Cu(II) complexes prepared by the reaction of ligands and corresponding metal salts in aqueous solutions, were synthesized and then characterized by both analytical and spectroscopic methods, in a view to developing new improved bioactive materials with novel properties. On the basis of elemental analysis, spectroscopic and TGA results, transition metal complexes, with octahedral geometry having two molecules of the bidentate keto-imine ligand each, have been proposed. The single crystal structure of Bmpp-Sn according to X-ray crystallography showed a keto-imine tautomer type of Schiff base, having three intramolecular bonds, one short N2⋯H2⋯O3 hydrogen bond of 1.90 Å and two long C13⋯H13⋯O2 and C32⋯H32⋯O3 hydrogen bonds of 2.48 Å. A moderate to low biological activities have been exhibited by synthesized compounds when compared with standard antimicrobial agents on screening the synthesized compounds against Staphylococcus aureus, Bacillus pumilus, Proteus vulgaris, and Aeromonas hydrophila for antibacterial activity and against free radical 1, 1-diphenyl-2-picryl-hydrazyl (DPPH) for antioxidant activity.
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Liu K, Zhao X, Liu Q, Huo J, Zhu B, Diao S. Fluoride-driven 'turn on' ESPT in the binding with a novel benzimidazole-based sensor. Beilstein J Org Chem 2015; 11:563-7. [PMID: 25977729 PMCID: PMC4419554 DOI: 10.3762/bjoc.11.61] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 04/08/2015] [Indexed: 11/23/2022] Open
Abstract
A novel fluorescence sensor (BIP) bearing NH and OH subunits displayed a highly selective and sensitive recognition property for fluoride over other anions. Fluoride-driven ESPT, poorly used in anion recognition and sensing, was suggested to be responsible for the fluorescence enhancement with a blue shift of 35 nm in the emission spectrum.
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Affiliation(s)
- Kai Liu
- Key Laboratory of Inorganic-Organic hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin, 300387, China ; Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, China
| | - Xiaojun Zhao
- Key Laboratory of Inorganic-Organic hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin, 300387, China
| | - Qingxiang Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, China
| | - Jianzhong Huo
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, China
| | - Shihua Diao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, China
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Zhang SH, Zhao RX, Li G, Zhang HY, Huang QP, Liang FP. Room temperature syntheses, crystal structures and properties of two new heterometallic polymers based on 3-ethoxy-2-hydroxybenzaldehyde ligand. J SOLID STATE CHEM 2014. [DOI: 10.1016/j.jssc.2014.08.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Weng Z, Zhang SH, Wang W, Guo JJ, Hai H. Syntheses, Structures and Properties of Three New Trinuclear Nickel Clusters with (2-Hydroxy-4-methoxyphenyl)-phenyl-methanone. J CLUST SCI 2014. [DOI: 10.1007/s10876-014-0802-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Synthesis, Structure and Properties of Linear Trinuclear Cobalt Cluster with 5-Fluoro-2-hydroxy-benzoic Acid. J CLUST SCI 2014. [DOI: 10.1007/s10876-014-0758-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Zhao RX, Hai H, Li G, Zhang HY, Huang QP, Zhang SH, Li HP. Room Temperature Syntheses, Structures and Magnetic Properties of Two Heterometallic Tetranuclear Clusters. J CLUST SCI 2014. [DOI: 10.1007/s10876-014-0750-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Feng ZQ, Yang XL, Ye YF, Hao LY. The Effect of Electron-withdrawing Group Functionalization on Antibacterial and Catalytic Activity of Palladium(II) Complexes. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.4.1121] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Synthesis, characterization, crystal structure, magnetic studies of a novel polymeric zig-zag chain copper (II) complex. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Huang QP, Li G, Zhang HY, Zhang SH, Li HP. Microwave-assisted Synthesis, Structure, and Properties of a Heptanuclear Cobalt Cluster with 2-Ethyliminomethyl-6-methoxy-phenol. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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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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Pd(II) and Zn(II) based complexes with Schiff base ligands: synthesis, characterization, luminescence, and antibacterial and catalytic activities. ScientificWorldJournal 2013; 2013:956840. [PMID: 24307886 PMCID: PMC3836455 DOI: 10.1155/2013/956840] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 09/08/2013] [Indexed: 11/18/2022] Open
Abstract
Two new metal complexes involving Schiff base ligands, namely, [Pd(L1)2] (1) and [Zn(L2)2] (2), [HL1: 2,4-dibromo-6-((E)-(mesitylimino)methyl)phenol and HL2: 2-((E)-(2,6-diisopropylphenylimino)methyl)-4,6-dibromophenol], have been solvothermally synthesized and characterized by elemental analysis, IR-spectroscopy, thermogravimetric analysis, powder X-ray diffraction, and single-crystal X-ray diffraction. Both 1 and 2 are mononuclear cyclometalated complexes with square planar and tetrahedral coordination geometry, respectively. 1 and 2 display photoluminescence in the solid state at 298 K (fluorescence lifetimes τ = 5.521 μs at 508 nm for 1; τ = 3.697 μs at 506 nm for 2). These Schiff base ligands and their metal complexes have been screened for antibacterial activity against several bacteria strains, and the results are compared with the activity of penicillin. Moreover, the Suzuki reaction of 4-bromoanisole with phenylboronic acid by 1 has also been studied.
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Two palladium(II) complexes based on Schiff base ligands: synthesis, characterization, luminescence, and catalytic activity. TRANSIT METAL CHEM 2013. [DOI: 10.1007/s11243-013-9691-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Efficient Synthesis and Characterization of Some Novel Nitro-Schiff Bases and Their Complexes of Nickel(II) and Copper(II). J CHEM-NY 2013. [DOI: 10.1155/2013/701826] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Synthesis and characterization of some new Schiff base ligands derived from various diamines and nitrosalicylaldehyde and their complexes of Ni(II) and Cu(II) are reported. Several spectral techniques such as UV-Vis, FT-IR, and NMR spectra were used to identify the chemical structures of the reported ligands and their complexes. The ligands are found to be bound to the metal atom through the oxygen atoms of the hydroxyl groups and nitrogen atoms of imine groups, which is also supported by spectroscopic techniques. The results obtained by FT-IR and NMR showed that the Schiff base complexes of transition metal (II) have square-planar geometry.
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Guo HF, Pan Y, Ma DY, Lu K, Qin L. Synthesis, characterization and catalytic activity of three palladium(II) complexes containing Schiff base ligands. TRANSIT METAL CHEM 2012. [DOI: 10.1007/s11243-012-9635-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fluoride-Triggered ESPT in the Binding with Sal(oph)en. J Fluoresc 2012; 22:1231-6. [DOI: 10.1007/s10895-012-1063-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Accepted: 05/03/2012] [Indexed: 11/25/2022]
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Synthesis, spectroscopic characterization and antimicrobial activity of mono-, bi- and tri-nuclear metal complexes of a new Schiff base ligand. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.06.034] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Shebl M, Khalil SM, Al-Gohani FS. Preparation, spectral characterization and antimicrobial activity of binary and ternary Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Ce(III) and UO2(VI) complexes of a thiocarbohydrazone ligand. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.06.040] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Xu SP, Zhu HL. Synthesis and antimicrobial activities of metal(II) complexes with 2,4-diiodo-6-phenyliminomethyl-phenol. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.507812] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Suo-Ping Xu
- a School of Chemistry and Chemical Engineering, Xuzhou Normal University , Xuzhou 221116, China
| | - Hai-Liang Zhu
- b School of Life Sciences, Nanjing University , Nanjing 210093, China
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