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Bouchoucha A, Terbouche A, Zaouani M, Derridj F, Djebbar S. Iron and nickel complexes with heterocyclic ligands: stability, synthesis, spectral characterization, antimicrobial activity, acute and subacute toxicity. J Trace Elem Med Biol 2013; 27:191-202. [PMID: 23380153 DOI: 10.1016/j.jtemb.2012.12.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 10/25/2012] [Accepted: 12/06/2012] [Indexed: 11/12/2022]
Abstract
The synthesis and characterization by elemental analysis, emission atomic spectroscopy, TG measurements, magnetic measurements, FTIR, (1)H NMR, UV-visible spectra and conductivity of a series of iron (II) and nickel (II) complexes with two heterocyclic ligands (L(1)(SMX): sulfamethoxazole and L(2)(MIZ): metronidazole) used in pharmaceutical field and with a new ligand derived benzoxazole (L(3)(MPBO): 2-(5-methylpyridine-2-yl)benzoxazole), were reported. The formulae obtained for the complexes are: [M(L(1))2 Cl2]·nH2O, [M(L(2))2Cl2(H2O)2]·H2O and [M(L(3))2(OH)2]·nH2O. Stability constants of these complexes have been determined by potentiometric methods in water-ethanol (90:10, v/v) mixture at a 0.2 mol L(-1) ionic strength (NaCl) and at 25.0±0.1 °C. Sirko program was used to determine the protonation constants as well as the binding constants of three species [ML2H2](2+), [ML2] and [ML](2+). The antimicrobial activity of the ligands and complexes was evaluated in vitro against different human bacteria and fungi using agar diffusion method. Iron sulfamethoxazole complex showed a remarkable inhibition of bacteria growth especially on Staphylococcus aureus and P. aeruginosa. The iron metronidazole complex is active against yeasts especially on Candida tropicalis strain. Nickel complexes presented different antibacterial and antifungal behavior's against bacteria and fungal. The acute toxicity study revealed that the iron complexes are not toxic at 2000 mg/kg dose orally administrated. LD50 for nickel complexes was determined using graphical method. No significant differences in the body weights between the control and the treated groups of both rat sexes in subacute toxicity study using for iron complexes. Hematological and clinical blood chemistry analysis revealed no toxicity effects of the iron complexes. Pathologically, neither gross abnormalities nor histopathological changes were observed for these complexes.
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Affiliation(s)
- Afaf Bouchoucha
- Hydrometallurgy and Molecular Inorganic Chemistry Laboratory, Faculty of Chemistry, Houari Boumediene Technologies Sciences University, BP 32, El Alia, Algiers, Algeria
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52
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Khanmohammadi H, Erfantalab M, Azimi G. New acyclic 1,2,4-triazole-based Schiff base hydrazone: synthesis, characterization, spectrophotometric and computational studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 105:338-343. [PMID: 23321219 DOI: 10.1016/j.saa.2012.12.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 12/10/2012] [Accepted: 12/10/2012] [Indexed: 06/01/2023]
Abstract
A new 1,2,4-triazole-based Schiff base hydrazone with N, O, S donor set of atoms, H(4)L, has been prepared by condensation reaction of N,N'-bis(3-formyl-5-methylsalicylidene)ethane-1,2-diamine, H(2)L, with 4-amino-3-(4-pyridyl)-5-mercapto-1,2,4-triazole. The structure of H(4)L was characterized by using FT-IR, UV-Vis and (1)H NMR spectroscopic methods as well as elemental analysis data. The formation constants of copper(II), cadmium(II), mercury(II) and silver(I) complexes of H(4)L in DMSO were calculated using a hard model chemometrics method applying the spectrophotometric data. The protonation constants of H(4)L were also measured in DMSO-water (1:10) mixture. Furthermore, (1)H chemical shifts of H(4)L were studied by the gauge independent atomic orbital (GIAO) and continuous set of gauge transformations (CSGTs) methods at the level of density functional theory using B3LYP/6-311++G(*) basis sets in gas phase. The computed chemical shifts are in reasonably good agreement with the experimental data.
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Affiliation(s)
- Hamid Khanmohammadi
- Faculty of Science, Department of Chemistry, Arak University, Arak 38156-8-8349, Iran.
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53
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Keypour H, Shayesteh M, Rezaeivala M, Chalabian F, Valencia L. Synthesis and characterization of a series of transition metal complexes with a new symmetrical polyoxaaza macroacyclic Schiff base ligand: X-ray crystal structure of cobalt(II) and nickel(II) complexes and their antibacterial properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 101:59-66. [PMID: 23099161 DOI: 10.1016/j.saa.2012.09.048] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 09/11/2012] [Accepted: 09/20/2012] [Indexed: 06/01/2023]
Abstract
A new symmetrical [N4O2] hexadentate Schiff base ligand, (E)-N-(pyridin-2-ylmethylene)-2-(3-(2-((E)-pyridin-2-lmethyleneamino)phenoxy)naphthalen-2-yloxy)benzenamine, abbreviated to L, and its complexes of Ni(II), Cu(II), Zn(II), Co(II), Cd(II) and Mn(II) have been synthesized in the presence of metal ions. The complexes were structurally characterized by elemental analyses, IR, UV-Vis, NMR and molar conductivity. The crystal structures of two complexes, [NiL(ONO2)2]·2H2O and [CoLCl2]CH3OH·0.5H2O, have been determined by a single crystal X-ray diffraction study. In these complexes, the ligand is coordinated in a neutral form via pyridine and azomethine nitrogen atoms. The metal ions complete their six coordination with two coordinated nitrate or chloride ions, forming a distorted octahedral geometry. The synthesized compounds have antibacterial activity against the three Gram-positive bacteria: Enterococcus faecalis, Bacillus cereus and Staphylococcus epid and also against the three Gram-negative bacteria: Citrobacter freundii, Enterobacter aerogenes and Salmonella typhi. The activity data show that the complexes are more potent antibacterials than the parent Schiff base.
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Affiliation(s)
- Hassan Keypour
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan 65174, Iran.
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54
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Li Z, Liu C, Tang R, Liu G. Novel pyridine Schiff base–manganese(ii) complexes: synthesis, characterization and catalytic reactivity of the epoxidation of cyclohexene. RSC Adv 2013. [DOI: 10.1039/c3ra40398j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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55
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Garza-Ortíz A, Martínez PA, Duarte-Hernández AM, Mijangos E, Flores-Álamo M, Pérez-Casas C, Camacho-Camacho C, Contreras R, Flores-Parra A, Reedijk J, Barba-Behrens N. Cobalt(II)-mediated synthesis of 2,6-bis[5,7-di-tert-butyl-1,3-benzoxazol-2-yl]-pyridine: Structural analysis and coordination behavior. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.09.078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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56
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Sahin M, Kocak N, Arslan U, Sahin O, Yilmaz M. Bis-Schiff Base Derivatives of 2,5-Dihydroxybenzaldehyde: Synthesis, Characterization and Antimicrobial Activity of Their Cu(II), Co(II) and Zn(II) Complexes. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.802154] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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57
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Raman N, Sobha S, Selvaganapathy M, Mahalakshmi R. DNA binding mode of novel tetradentate amino acid based 2-hydroxybenzylidene-4-aminoantipyrine complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:698-708. [PMID: 22885083 DOI: 10.1016/j.saa.2012.07.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 06/29/2012] [Accepted: 07/11/2012] [Indexed: 06/01/2023]
Abstract
Few transition metal complexes of tetradentate N(2)O(2) donor Schiff base ligands containing 2-hydroxybenzylidene-4-aminoantipyrine and amino acids (alanine/valine) abbreviated to KHL(1)/KHL(2) have been synthesized. All the metal complexes have been fully characterized with the help of elemental analyses, molecular weights, molar conductance values, magnetic moments and spectroscopic data. The Schiff bases KHL(1)/KHL(2) are found to act as tetradentate ligands using N(2)O(2) donor set of atoms leading to a square-planar geometry for the complexes around the metal ions. The binding behaviors of the complexes to calf thymus DNA have been investigated by absorption spectra, viscosity measurements and cyclic voltammetry. The DNA binding constants reveal that all these complexes interact with DNA through minor groove binding mode. The studies on mechanism of photocleavage reveal that singlet oxygen ((1)O(2)) and superoxide anion radical (O(2)(-)) may play an important role in the photocleavage. The Schiff bases and their metal complexes have been screened for their in vitro antibacterial activities against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus epidermidis, Klebsiella pneumoniae and antifungal activities against Aspergillus niger, Fusarium solani, Culvularia lunata, Rhizoctonia bataicola and Candida albicans by MIC method.
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Affiliation(s)
- N Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, India.
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58
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Adly OMI. Characterization, molecular modeling and antimicrobial activity of metal complexes of tridentate Schiff base derived from 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione and 2-aminophenol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 95:483-490. [PMID: 22580142 DOI: 10.1016/j.saa.2012.04.030] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 03/18/2012] [Accepted: 04/07/2012] [Indexed: 05/31/2023]
Abstract
Metal complexes of Ni(II), Co(II), Cd(II), VO(IV) and UO(2)(VI) as well as several Cu(II) salts, including Cl(-),NO(3)(-),AcO(-),ClO(4)(-) and SO(4)(-2) with a tridentate O(2)N donor Schiff base ligand (H(2)L), synthesized by condensation of 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione with 2-aminophenol, were prepared and characterized on the basis of elemental analyses, spectral, magnetic, molar conductance and thermal gravimetric analysis. Square planar, tetrahedral and octahedral geometries have been assigned to the prepared complexes. Molecular parameters of the ligand and its metal complexes have been calculated and correlated with the experimental data, and the changes of bond lengths are linearly correlated with IR data. The antimicrobial activities of the synthesized compounds were tested in vitro against the sensitive organisms Staphylococcus aureus as Gram positive bacteria, Proteus vulgaris as Gram negative bacteria and Candida albicans as fungus strain, and the results are discussed.
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Affiliation(s)
- Omima M I Adly
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11711, Egypt.
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59
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El-Tabl AS, Shakdofa MME, El-Seidy AMA, Al-Hakimi AN. Synthesis, Characterization and Antifungal Activity of Metal Complexes of 2-(5-((2-Chlorophenyl)Diazenyl)-2-Hydroxybenzylidene) Hydrazinecarbothioamide. PHOSPHORUS SULFUR 2012. [DOI: 10.1080/10426507.2012.657310] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Abdou S. El-Tabl
- a Department of Chemistry, Faculty of Science , Menoufia University , Shebin El-Kom , Egypt
| | - Mohamad M. E. Shakdofa
- b Inorganic Chemistry Department , National Research Center , Cairo , Egypt
- c Department of Chemistry, Faculty of Science and Arts, Khulais , King Abdulaziz University , Saudi Arabia
| | - Ahmed M. A. El-Seidy
- b Inorganic Chemistry Department , National Research Center , Cairo , Egypt
- d Chemistry Department, Faculty of Science , The Imam Muhammad bin Saud Islamic University , Riyadh , Saudi Arabia
| | - Ahmed N. Al-Hakimi
- e Department of Chemistry, Faculty of Science , Ibb University , Ibb , Yemen
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60
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Baran EK, Yaşar SB. Determination of Iron in Edible Oil by FAAS After Extraction with a Schiff Base. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9462-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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61
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Raman N, Sobha S. Developing biologically active compounds having efficient DNA binding and cleavage activity: spectroscopic investigation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 93:250-259. [PMID: 22484260 DOI: 10.1016/j.saa.2012.03.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 03/05/2012] [Accepted: 03/09/2012] [Indexed: 05/31/2023]
Abstract
A new series of novel o-acetoacetotoluidide derived Schiff base and its metal complexes have been synthesized and structurally characterized. Elemental analysis, magnetic and spectroscopic data suggest that the complexes have octahedral geometry. Binding of these complexes with CT-DNA has been analyzed by absorption spectra, viscosity, cyclicvoltammetry and molecular docking analysis. Detailed analysis reveals that the metal complexes intercalate into the DNA base stack as intercalators. All the metal complexes cleave the pBR322 DNA upon irradiation. Antibacterial and antifungal activities of the ligand and its metal complexes are also explored and it has been observed that the complexes exhibit excellent activity against all types of bacteria and fungi than the ligand.
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Affiliation(s)
- Natarajan Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar-626 001, India.
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62
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Gündüzalp AB, Özbay HF. The synthesis, characterization and antibacterial activities of dinuclear Ni(II), Cu(II) and Fe(III) Schiff base complexes. RUSS J INORG CHEM+ 2012. [DOI: 10.1134/s0036023612020118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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63
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Mohamed MS, Shoukry AA, Ali AG. Synthesis and structural characterization of ternary Cu (II) complexes of glycine with 2,2'-bipyridine and 2,2'-dipyridylamine. The DNA-binding studies and biological activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 86:562-570. [PMID: 22153742 DOI: 10.1016/j.saa.2011.11.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 11/06/2011] [Accepted: 11/09/2011] [Indexed: 05/31/2023]
Abstract
In this study two new complexes [Cu(bpy)(Gly)Cl]·2H(2)O (1) and [Cu(dpa)(Gly)Cl]·2H(2)O (2) (bpy=2,2'-bipyridine; dpa=2,2'-dipyridylamine, Gly=glycine) have been synthesized and characterized by elemental analysis, IR, TGA, UV-vis and magnetic susceptibility measurements. The binding properties of the complexes with CT-DNA were investigated by electronic absorption spectra. The intrinsic binding constants (K(b)) calculated from UV-vis absorption studies were 1.84 × 10(3) M(-1) and 3.1 × 10(3) M(-1) for complexes 1 and 2 respectively. Thermal denaturation has been systematically studied by spectrophotometric method and the calculated ΔT(m) was nearly 5 °C for each complex. All the results suggest that the interaction modes between the complexes and CT-DNA were electrostatic and/or groove binding. The redox behavior of the two complexes was investigated by cyclic voltammetry. Both complexes, in presence and absence of CT-DNA show a quasi-reversible wave corresponding to Cu(II)/Cu(I) redox couple. The change in E(1/2), ΔE and I(pc)/I(pa) ascertain the interaction of complexes 1 and 2 with CT-DNA. Further insight into the binding of complexes with CT-DNA has been made by gel electrophoresis, where the binding of complexes is confirmed through decreasing the mobility and intensity of DNA bands. In addition, the antitumor activity of the complexes was tested on two cancer cell lines; the breast cancer (MCF7) and the human hepatocellular carcinoma (HEPG2), as well as one normal cell line; the human normal melanocytes (HFB4). The results showed that complex 1 was more potent antitumor agent than complex 2. The in-vitro antimicrobial activity of the two complexes was carried out using the disc diffusion method against different species of pathogenic bacteria and fungi. The activity data showed that complex 2 was more active in inhibiting the growth of the tested organisms.
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Affiliation(s)
- Mervat S Mohamed
- Department of Chemistry, Biochemistry Speciality, Faculty of Science, Cairo University, Egypt
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64
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Raman N, Sobha S. Exploring the DNA binding mode of transition metal based biologically active compounds. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 85:223-234. [PMID: 22020164 DOI: 10.1016/j.saa.2011.09.065] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 09/06/2011] [Accepted: 09/30/2011] [Indexed: 05/31/2023]
Abstract
Few novel 4-aminoantipyrine derived Schiff bases and their metal complexes were synthesized and characterized. Their structural features and other properties were deduced from the elemental analysis, magnetic susceptibility and molar conductivity as well as from mass, IR, UV-vis, (1)H NMR and EPR spectral studies. The binding of the complexes with CT-DNA was analyzed by electronic absorption spectroscopy, viscosity measurement, and cyclic voltammetry. The interaction of the metal complexes with DNA was also studied by molecular modeling with special reference to docking. The experimental and docking results revealed that the complexes have the ability of interaction with DNA of minor groove binding mode. The intrinsic binding constants (K(b)) of the complexes with CT-DNA were found out which show that they are minor groove binders. Gel electrophoresis assay demonstrated the ability of the complexes to cleave the pUC19 DNA in the presence of AH(2) (ascorbic acid). Moreover, the oxidative cleavage studies using distamycin revealed the minor groove binding for the newly synthesized 4-aminoantipyrine derived Schiff bases and their metal complexes. Evaluation of antibacterial activity of the complexes against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus epidermidis, and Klebsiella pneumoniae exhibited that the complexes have potent biocidal activity than the free ligands.
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Affiliation(s)
- N Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, India.
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65
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Balaban Gündüzalp A, Özbek N, Karacan N. Synthesis, characterization, and antibacterial activity of the ligands including thiophene/furan ring systems and their Cu(II), Zn(II) complexes. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9878-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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66
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Synthesis, characterization, and biological activity of some transition metal complexes with Schiff base ligands derived from 4-amino-5-phenyl-4H-1,2,4-triazole-3-thiol and salicaldehyde. MONATSHEFTE FUR CHEMIE 2011. [DOI: 10.1007/s00706-011-0626-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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67
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Abd El-Halim HF, Omar MM, Mohamed GG, El-Ela Sayed MA. Spectroscopic and biological activity studies on tridentate Schiff base ligands and their transition metal complexes. ACTA ACUST UNITED AC 2011. [DOI: 10.5155/eurjchem.2.2.178-188.240] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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68
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Abd El-halim HF, Omar MM, Mohamed GG. Synthesis, structural, thermal studies and biological activity of a tridentate Schiff base ligand and their transition metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 78:36-44. [PMID: 21130026 DOI: 10.1016/j.saa.2010.06.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Revised: 05/16/2010] [Accepted: 06/04/2010] [Indexed: 05/30/2023]
Abstract
Schiff base (L) ligand is prepared via condensation of pyridine-2,6-dicarboxaldehyde with -2-aminopyridine. The ligand and its metal complexes are characterized based on elemental analysis, mass, IR, solid reflectance, magnetic moment, molar conductance, and thermal analyses (TG, DTG and DTA). The molar conductance reveals that all the metal chelates are non-electrolytes. IR spectra shows that L ligand behaves as neutral tridentate ligand and bind to the metal ions via the two azomethine N and pyridine N. From the magnetic and solid reflectance spectra, it is found that the geometrical structures of these complexes are octahedral (Cr(III), Fe(III), Co(II), Ni(II), Cu(II), and Th(IV)) and tetrahedral (Mn(II), Cd(II), Zn(II), and UO2(II)). The thermal behaviour of these chelates shows that the hydrated complexes losses water molecules of hydration in the first step followed immediately by decomposition of the anions and ligand molecules in the subsequent steps. The activation thermodynamic parameters, such as, E*, ΔH*, ΔS* and ΔG* are calculated from the DTG curves using Coats-Redfern method. The synthesized ligand, in comparison to their metal complexes also was screened for its antibacterial activity against bacterial species, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus pyogones and Fungi (Candida). The activity data shows that the metal complexes to be more potent/antibacterial than the parent Schiff base ligand against one or more bacterial species.
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Affiliation(s)
- Hanan F Abd El-halim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Misr International University, Cairo, Egypt.
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69
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Mohamed GG, Badawy MA, Omar MM, Nassar MM, Kamel AB. Synthesis, spectroscopic, thermal and biological activity studies on triazine metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:773-781. [PMID: 20850376 DOI: 10.1016/j.saa.2010.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2010] [Revised: 07/05/2010] [Accepted: 08/03/2010] [Indexed: 05/29/2023]
Abstract
The coordination behaviour of the triazine ligand with NNO donation sites, derived from 3-benzyl-7-hydrazinyl-4H-[1,3,4]thiadiazolo[2,3c][1,2,4]triazin-4-one (HL), towards some metal ions namely Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) are reported. The metal complexes are characterized based on elemental analyses, IR, (1)H NMR, solid reflectance, magnetic moment, molar conductance and thermal analyses (TG, DTG and DTA). The ionization constants of the organic ligand under investigation as well as the stability constants of its metal chelates are calculated spectrophotometrically at 25°C. The chelates are found to have octahedral geometrical structures. The ligand (HL) and its binary chelates are subjected to thermal analyses (TG, DTG and DTA) and the different activation thermodynamic parameters are calculated from their corresponding DTG curves to throw more light on the nature of changes accompanying the thermal decomposition process of these compounds. The synthesized ligand and its metal complexes were found to have biological activity against the desert locust Schistocerca gregaria (Forsk.) (Orthoptera - Acrididae) and its adult longevities.
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Affiliation(s)
- Gehad G Mohamed
- Chemistry Department, Faculty of Science, Cairo University, 12613 Giza, Egypt.
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70
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Ahmed IS, Kassem MA. Synthesis, solvatochromaticity and bioactivities of some transition metal complexes with 2-(R-benzylideneamino)-pyridin-3-ol Schiff base derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:359-366. [PMID: 20638329 DOI: 10.1016/j.saa.2010.03.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2009] [Revised: 03/10/2010] [Accepted: 03/16/2010] [Indexed: 05/29/2023]
Abstract
New four Schiff bases are prepared by condensation of 2-amino-pyridin-3-ol with 3, 4-dihydroxy-benzaldehyde (I), 2-hydroxybenzaldehyde (II), 5-bromo-2-hydroxybenzaldehyde (III), and 4-dimethylaminobenzaldehyde (IV). The structures of these compounds are characterized based on elemental analyses (C. H. N), IR and (1)H NMR. Also, the electronic absorption spectra are recorded in organic solvents of different polarity. The solvents are selected to be covered a wide range of parameters (refractive index, dielectric constant and hydrogen bonding capacity). The UV-vis absorption spectra of Schiff base compounds are investigated in aqueous buffer solutions of varying pH and utilized for the determination of ionization constant, pK(a) and activation free energy, DeltaG(*) of the ionization process. The biological activity against bacterial species and fungi as microorganisms representing different microbial categories such as (two Gram-negative bacteria, Eschericha coli and Agrobacterium sp.),three Gram-positive bacteria (Staphylococcus aureus, Bacillus subtlus and Bacillus megatherium), yeast (Candida albicans), and fungi (Aspergillus niger) were studied.
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Affiliation(s)
- I S Ahmed
- Chemistry Department, Faculty of Science, Benha University, Benha, Egypt.
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71
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Synthesis, characterization and biological studies of some Co(II), Ni(II) and Cu(II) complexes derived from indole-3-carboxaldehyde and glycylglycine as Schiff base ligand. ARAB J CHEM 2010. [DOI: 10.1016/j.arabjc.2010.05.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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72
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Synthesis, spectroscopic characterization, thermal studies, catalytic epoxidation and biological activity of chromium and molybdenum hexacarbonyl bound to a novel N2O2 Schiff base. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.06.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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73
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Prakash A, Singh BK, Bhojak N, Adhikari D. Synthesis and characterization of bioactive zinc(II) and cadmium(II) complexes with new Schiff bases derived from 4-nitrobenzaldehyde and acetophenone with ethylenediamine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 76:356-362. [PMID: 20418153 DOI: 10.1016/j.saa.2010.03.019] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2010] [Revised: 02/27/2010] [Accepted: 03/15/2010] [Indexed: 05/29/2023]
Abstract
The new Schiff bases N,N'-bis (4-nitro benzaldehyde) ethylenediamine (L(1)) and N,N'-bis (acetophenone) ethylenediamine (L(2)) and its Zn(II), Cd(II) complexes were synthesized and characterized by different physicochemical studies. Vibrational spectra indicate coordination of metal ion through azomethine nitrogen and acetate/nitrate ions. The presence of water molecule in all the complexes has been supported by TG/DTA studies. Mass spectrum explains the successive degradation of the molecular species in solution and justifies ML complexes. Kinetic and thermodynamic parameters were computed from the thermal data using Coats and Redfern method, which confirm first order kinetics. The bioefficacy of the ligands and their complexes have been examined against the growth of bacteria in vitro to evaluate their antimicrobial potential. The results indicate that the ligand and their metal complexes possess notable antimicrobial properties. X-ray powder diffraction determines the cell parameters of the complexes.
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Affiliation(s)
- Anant Prakash
- Inorganic & Bioinorganic Research Lab, Department of Chemistry, Govt. Post Graduate College, Ranikhet 263645, Uttarakhand, India
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74
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Baošić R, Radojević A, Tripković T, Aburas N, Tešić Ž. RP-TLC Quantitative Retention-Property Relationships Studies of Some Schiff Base Ligands and Their Complexes. Chromatographia 2010. [DOI: 10.1365/s10337-010-1664-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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75
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Yang Y, Hao S, Qiu P, Shang F, Ding W, Kan Q. A novel copper(II) complex bearing salicylaldimine immobilized on SBA-15 and its catalytic performances in styrene oxidation by hydrogen peroxide. REACTION KINETICS MECHANISMS AND CATALYSIS 2010. [DOI: 10.1007/s11144-010-0182-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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76
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Synthesis and spectroscopic characterization of new tetradentate Schiff base and its coordination compounds of NOON donor atoms and their antibacterial and antifungal activity. ARAB J CHEM 2010. [DOI: 10.1016/j.arabjc.2010.02.006] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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77
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Mohamed GG, Omar MM, Ibrahim AA. Preparation, characterization and biological activity of novel metal-NNNN donor Schiff base complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:678-685. [PMID: 20044308 DOI: 10.1016/j.saa.2009.11.039] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2009] [Revised: 11/14/2009] [Accepted: 11/17/2009] [Indexed: 05/28/2023]
Abstract
Novel Schiff base (H(2)L) ligand is prepared via condensation of benzil and triethylenetetraamine. The ligand is characterized based on elemental analysis, mass, IR and (1)H NMR spectra. Metal complexes are reported and characterized based on elemental analyses, IR, (1)H NMR, solid reflectance, magnetic moment, molar conductance, and thermal analyses (TG, DTG and DTA). 1:1 [M]:[H(2)L] complexes are found from the elemental analyses data having the formulae [M(H(2)L)Cl(2)]xyH(2)O (M=Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II)), [Fe(H(2)L)Cl(2)]ClxH(2)O, [Th(H(2)L)Cl(2)]Cl(2)x3H(2)O and [UO(2)(H(2)L)](CH(3)COO)(2)x2H(2)O. The metal chelates are found to be non-electrolytes except Fe(III), Th(IV) and UO(2)(II) complexes are electrolytes. IR spectra show that H(2)L is coordinated to the metal ions in a neutral tetradentate manner with 4Ns donor sites of the two azomethine N and two NH groups. The geometrical structures of these complexes are found to be octahedral. The thermal behaviour of these chelates is studied where the hydrated complexes lose water molecules of hydration in the first step followed immediately by decomposition of the anions and ligand molecules in the subsequent steps. The activation thermodynamic parameters are calculated using Coats-Redfern method. The ligand (H(2)L), in comparison to its metal complexes, is screened for its antibacterial activity. The activity data show that the metal complexes have antibacterial activity more than the parent Schiff base ligand and cefepime standard against one or more bacterial species.
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Affiliation(s)
- Gehad G Mohamed
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt.
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78
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Negm NA, Zaki MF, Salem MAI. Cationic schiff base amphiphiles and their metal complexes: Surface and biocidal activities against bacteria and fungi. Colloids Surf B Biointerfaces 2010; 77:96-103. [PMID: 20167455 DOI: 10.1016/j.colsurfb.2010.01.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Revised: 01/15/2010] [Accepted: 01/21/2010] [Indexed: 11/30/2022]
Abstract
A series of cationic surfactants containing schiff base groups was synthesized by condensation of four fatty amines namely: dodecyl, tetradecyl, hexadecyl and octadecyl amine and 4-diethyl aminobenzaldehyde (1-4), as well as their metal complexes with divalent transition metal ions including Co, Cu and Mn (5-16). The surface activities of the synthesized surfactants were influenced by their chemical structures and the type of the transition metals. The biological activity measurements of the parent cationic schiff bases showed high efficacy against Gram positive and Gram negative bacterial strains and fungi. While on complexation, the biocidal activity was increased remarkably. The biocidal activity of the tested compounds against sulfur reducing bacteria showed promising results in the field of biocide applications.
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Affiliation(s)
- N A Negm
- Petrochemicals Department, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt.
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79
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Khanmohammadi H, Erfantalab M. Pyridazine-based Schiff base ligands with N4OxS2 (x=2, 4) donor set atoms: synthesis, characterization, spectral studies and 13C chemical shifts computed by the GIAO-DFT and CSGT-DFT methodologies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:127-133. [PMID: 19892590 DOI: 10.1016/j.saa.2009.09.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 09/16/2009] [Accepted: 09/25/2009] [Indexed: 05/28/2023]
Abstract
Six pyridazine-based Schiff base ligands, H(2)L(n) (n=1-5) and H(4)L, with N(4)O(2)S(2) and N(4)O(4)S(2) donor set atoms, respectively, were prepared by condensation reaction of 3,6-bis-((2-aminoethyl)thio)pyridazine with various salicyladehyde derivatives in ethanol and under solvent-free polyphosphate ester catalyzed conditions. The acid-base properties of H(2)L(2) and H(2)L(3) in DMSO/water (1:1) solution have been studied by spectrophotometric method at 25 degrees C. Optimized geometries of all compounds were also obtained at the B3LYP level of theory. Additionally, the (13)C chemical shielding of gas phase H(2)L(1) and H(2)L(2) were studied by the gauge independent atomic orbital (GIAO) and continuous set of gauge transformations (CSGT) methods at the level of density functional theory (DFT). The 6-311++G* basis set was utilized for all of the atoms.
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80
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Ozdemir UO, Arslan F, Hamurcu F. Synthesis, characterization, antibacterial activities and carbonic anhydrase enzyme inhibitor effects of new arylsulfonylhydrazone and their Ni(II), Co(II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:121-126. [PMID: 19889572 DOI: 10.1016/j.saa.2009.09.052] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Revised: 09/10/2009] [Accepted: 09/25/2009] [Indexed: 05/28/2023]
Abstract
Ethane sulfonic acide hydrazide (esh: CH(3)CH(2)SO(2)NHNH(2)) derivatives as 5-methylsalicyl-aldehydeethanesulfonylhydrazone (5msalesh), 5-methyl-2-hydroxyacetophenoneethane sulfonylhydrazone (5mafesh) and their Ni(II), Co(II) complexes have been synthesized for the first time. The structure of these compounds has been investigated by elemental analysis, FT-IR, (1)H NMR, (13)C NMR, LC/MS, UV-vis spectrophotometric method, magnetic susceptibility, thermal studies and conductivity measurements. The antibacterial activities of synthesized compounds were studied against Gram positive bacteria; Staphylococcus aureus, Bacillus subtilis, Bacillus magaterium and Gram negative bacteria; Salmonella enteritidis, Escherichia coli by using the microdilution broth method. The biological activity screening showed that ligands have more activity than complexes against the tested bacteria. The inhibition activities of these compounds on carbonic anhydrase II (CA II) have been investigated by comparing IC(50) and K(i) values and it has been found that 5msalesh and its complexes have more enzyme inhibition efficiency than other compounds.
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Affiliation(s)
- Ummühan Ozmen Ozdemir
- Department of Chemistry, Faculty of Science and Art, Gazi University, Ankara, Turkey.
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81
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Abdallah SM, Mohamed GG, Zayed MA, Abou El-Ela MS. Spectroscopic study of molecular structures of novel Schiff base derived from o-phthaldehyde and 2-aminophenol and its coordination compounds together with their biological activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 73:833-840. [PMID: 19505840 DOI: 10.1016/j.saa.2009.04.005] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2008] [Revised: 03/18/2009] [Accepted: 04/14/2009] [Indexed: 05/27/2023]
Abstract
New Schiff base (H(2)L) ligand is prepared via condensation of o-phthaldehyde and 2-aminophenol. The metal complexes of Cr(III), Mn(II), Fe(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) with the ligand are prepared in good yield from the reaction of the ligand with the corresponding metal salts. They are characterized based on elemental analyses, IR, solid reflectance, magnetic moment, electron spin resonance (ESR), molar conductance, (1)H NMR and thermal analysis (TGA). From the elemental analyses data, the complexes are proposed to have the general formulae [M(L)(H(2)O)n].yH(2)O (where M=Mn(II) (n=0, y=1), Fe(II) (n=y=0), Co(II) (n=2, y=0), Ni(II) (n=y=2), Cu(II) (n=0, y=2) and Zn(II) (n=y=0), and [MCl(L)(H(2)O)].yH(2)O (where M=Cr(III) and Fe(III), y=1-2). The molar conductance data reveal that all the metal chelates are non-electrolytes. IR spectra show that H(2)L is coordinated to the metal ions in a bi-negatively tetradentate manner with ONNO donor sites of the azomethine N and deprotonated phenolic-OH. This is supported by the (1)H NMR and ESR data. From the magnetic and solid reflectance spectra, it is found that the geometrical structures of these complexes are octahedral (Cr(III), Fe(III), Co(II) and Ni(II) complexes), tetrahedral (Mn(II), Fe(II) and Zn(II) complexes) and square planar (Cu(II) complex). The thermal behaviour of these chelates is studied and the activation thermodynamic parameters, such as, E*, Delta H*, DeltaS* and Delta G* are calculated from the DrTGA curves using Coats-Redfern method. The parent Schiff base and its eight metal complexes are assayed against two fungal and two bacterial species. With respect to antifungal activity, the parent Schiff base and four metal complexes inhibited the growth of the tested fungi at different rates. Ni(II) complex is the most inhibitory metal complex, followed by Cr(III) complex, parent Schiff base then Co(II) complex. With regard to bacteria, only two of the tested metal complexes (Mn(II) and Fe(II)) weakly inhibit the growth of the two tested bacteria.
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82
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Elmali FT, Peksel A, Demirhan N. Synthesis in solvent-free conditions, characterization and biological activity of a new Schiff-base ligand and its Cu(II) complex. J COORD CHEM 2009. [DOI: 10.1080/00958970902842471] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Fikriye Tuncel Elmali
- a Faculty of Arts and Sciences, Chemistry Department , Yildiz Technical University , 34210 Esenler, Istanbul, Turkey
| | - Aysegül Peksel
- a Faculty of Arts and Sciences, Chemistry Department , Yildiz Technical University , 34210 Esenler, Istanbul, Turkey
| | - Nebahat Demirhan
- a Faculty of Arts and Sciences, Chemistry Department , Yildiz Technical University , 34210 Esenler, Istanbul, Turkey
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83
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Özdemir ÜÖ, Güvenç P, Şahin E, Hamurcu F. Synthesis, characterization and antibacterial activity of new sulfonamide derivatives and their nickel(II), cobalt(II) complexes. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.11.029] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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84
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Youssef NS, El-Zahany E, El-Seidy AM, Caselli A, Fantauzzi S, Cenini S. Synthesis and characterisation of new Schiff base metal complexes and their use as catalysts for olefin cyclopropanation. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.09.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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85
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Selwin Joseyphus R, Sivasankaran Nair M. Synthesis, characterization and antimicrobial activity of transition metal complexes with the Schiff base derived from imidazole-2-carboxaldehyde and glycylglycine. J COORD CHEM 2008. [DOI: 10.1080/00958970802236048] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- R. Selwin Joseyphus
- a Department of Chemistry , Manonmaniam Sundaranar University , Tirunelveli-627 012, India
| | - M. Sivasankaran Nair
- a Department of Chemistry , Manonmaniam Sundaranar University , Tirunelveli-627 012, India
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86
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Turac E, Surme Y, Sahmetlioglu E, Varol R, Narin I, Toppare L. Synthesis and characterization of water-soluble oligosalicylaldehyde-sulfanilic acid and its Cu(II), Co(II), Pb(II) complexes. J Appl Polym Sci 2008. [DOI: 10.1002/app.28650] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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87
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Khanmohammadi H, Keypour H, Salehei Fard M, Abnosi MH. Synthesis and biological activity of Magnesium(II) complexes of heptaaza Schiff base macrocyclic ligands; 1H and 13C chemical shifts computed by the GIAO-DFT and CSGT-DFT methodologies. J INCL PHENOM MACRO 2008. [DOI: 10.1007/s10847-008-9495-4] [Citation(s) in RCA: 11] [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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88
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Keskioğlu E, Gündüzalp AB, Cete S, Hamurcu F, Erk B. Cr(III), Fe(III) and Co(III) complexes of tetradentate (ONNO) Schiff base ligands: synthesis, characterization, properties and biological activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 70:634-40. [PMID: 17904895 DOI: 10.1016/j.saa.2007.08.011] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2007] [Revised: 08/13/2007] [Accepted: 08/18/2007] [Indexed: 05/17/2023]
Abstract
A series of metal complexes were synthesized from equimolar amounts of Schiff bases: 1,4-bis[3-(2-hydroxy-1-naphthaldimine)propyl]piperazine (bappnaf) and 1,8-bis[3-(2-hydroxy-1-naphthaldimine)-p-menthane (damnaf) with metal chlorides. All of synthesized compounds were characterized by elemental analyses, spectral (UV-vis, IR, (1)H-(13)C NMR, LC-MS) and thermal (TGA-DTA) methods, magnetic and conductance measurements. Schiff base complexes supposed in tetragonal geometry have the general formula [M(bappnaf or damnaf)]Cl.nH(2)O, where M=Cr(III), Co(III) and n=2, 3. But also Fe(III) complexes have octahedral geometry by the coordination of two water molecules and the formula is [Fe(bappnaf or damnaf)(H(2)O)(2)]Cl. The changes in the selected vibration bands in FT-IR indicate that Schiff bases behave as (ONNO) tetradentate ligands and coordinate to metal ions from two phenolic oxygen atoms and two azomethine nitrogen atoms. Conductance measurements suggest 1:1 electrolytic nature of the metal complexes. The synthesized compounds except bappnaf ligand have the antimicrobial activity against the bacteria: Escherichia coli (ATCC 11230), Yersinia enterocolitica (ATCC 1501), Bacillus magaterium (RSKK 5117), Bacillus subtilis (RSKK 244), Bacillus cereus (RSKK 863) and the fungi: Candida albicans (ATCC 10239). These results have been considerably interest in piperazine derivatives due to their significant applications in antimicrobial studies.
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Affiliation(s)
- Eren Keskioğlu
- Department of Chemistry, Faculty of Science and Arts, Gazi University, Ankara, Turkey
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89
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Ozmen UO, Olgun G. Synthesis, characterization and antibacterial activity of new sulfonyl hydrazone derivatives and their nickel(II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 70:641-5. [PMID: 17900973 DOI: 10.1016/j.saa.2007.08.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2007] [Revised: 08/14/2007] [Accepted: 08/18/2007] [Indexed: 05/17/2023]
Abstract
Prophane sulfonic acid hydrazide (psh: CH(3)CH(2)CH(2)SO(2)NHNH(2)) derivatives as salicylaldehydeprophanesulfonylhydrazone (salpsh), 5-methylsalicylaldehydeprophanesulfonylhydrazone (5-msalpsh), 2-hydroxyacetophenoneprophanesulfonylhydrazone (afpsh), 5-methyl-2-hydroxyacetophenoneprophanesulfonylhydrazone (5-mafpsh) and their Ni(II) complexes have been synthesized. The structure of these compounds has been investigated by using elemental analysis, FTIR, (1)H NMR, LC/MS, UV-vis spectrophotometric method, magnetic susceptibility and conductivity measurements. The complexes were found to have general compositions [NiL2]. Square-planer structures are proposed for the Ni(II) complexes on the basis of magnetic evidence, electronic spectra and TGA data. Bacterial activities of sulfonyl hydrazone compounds were studied against gram-positive bacteria: Staphylococcus aureus, Bacillus subtilis, Bacillus magaterium and gram-negative bacteria: Salmonella enteritidis, Escherichia coli by using minimum inhibitory concentrations (MICs) method.
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Affiliation(s)
- Ummühan Ozdemir Ozmen
- Department of Chemistry, Faculty of Science and Art, Gazi University, 06500 Teknikokullar, Ankara, Turkey.
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90
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Garza-Ortiz A, Maheswari PU, Siegler M, Spek AL, Reedijk J. Ruthenium(III) Chloride Complex with a Tridentate Bis(arylimino)pyridine Ligand: Synthesis, Spectra, X-ray Structure, 9-Ethylguanine Binding Pattern, and In Vitro Cytotoxicity. Inorg Chem 2008; 47:6964-73. [DOI: 10.1021/ic8005579] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ariadna Garza-Ortiz
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | - Palanisamy Uma Maheswari
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | - Maxime Siegler
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | - Anthony L. Spek
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | - Jan Reedijk
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
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91
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Sedaghat T, Rahmani M. Synthesis and Spectroscopic Investigations of New Schiff Base Complexes of Tin(IV). PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426500701589107] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Tahereh Sedaghat
- a Department of Chemistry, College of Sciences , Shahid Chamran University , Ahvaz , Iran
| | - Mahbobeh Rahmani
- a Department of Chemistry, College of Sciences , Shahid Chamran University , Ahvaz , Iran
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92
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Baošić R, Radojević A, Radulović M, Miletić S, Natić M, Tešić Ž. Relationships between structure, retention and biological activity of some Schiff base ligands and their complexes. Biomed Chromatogr 2007; 22:379-86. [DOI: 10.1002/bmc.943] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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93
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İspir E, Kurtoğlu M, Toroğlu S. The d10 Metal Chelates Derived from Schiff Base Ligands Having Silane: Synthesis, Characterization, and Antimicrobial Studies of Cadmium(II) and Zinc(II) Complexes. ACTA ACUST UNITED AC 2007. [DOI: 10.1080/15533170600910553] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Esin İspir
- a Department of Chemistry, Faculty of Science and Arts , Kahramanmaraş Sütçü İmam University , Kahramanmaraş, Turkey
| | - Mükerrem Kurtoğlu
- a Department of Chemistry, Faculty of Science and Arts , Kahramanmaraş Sütçü İmam University , Kahramanmaraş, Turkey
| | - Sevil Toroğlu
- b Department of Biology, Faculty of Science and Arts , Kahramanmaraş Sütçü İmam University , Kahramanmaraş, Turkey
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