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Jevtovic V, Alhar MSO, Milenković D, Marković Z, Dimitrić Marković J, Dimić D. Synthesis, Structural Characterization, Cytotoxicity, and Protein/DNA Binding Properties of Pyridoxylidene-Aminoguanidine-Metal (Fe, Co, Zn, Cu) Complexes. Int J Mol Sci 2023; 24:14745. [PMID: 37834192 PMCID: PMC10573062 DOI: 10.3390/ijms241914745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Pyridoxylidene-aminoguanidine (PLAG) and its transition metal complexes are biologically active compounds with interesting properties. In this contribution, three new metal-PLAG complexes, Zn(PLAG)(SO4)(H2O)].∙H2O (Zn-PLAG), [Co(PLAG)2]SO4∙2H2O (Co-PLAG), and [Fe(PLAG)2]SO4∙2H2O) (Fe-PLAG), were synthetized and characterized by the X-ray crystallography. The intermolecular interactions governing the stability of crystal structure were compared to those of Cu(PLAG)(NCS)2 (Cu-PLAG) within Hirshfeld surface analysis. The structures were optimized at B3LYP/6-31+G(d,p)(H,C,N,O,S)/LanL2DZ (Fe,Co,Zn,Cu), and stability was assessed through Natural Bond Orbital Theory and Quantum Theory of Atoms in Molecules. Special emphasis was put on investigating the ligand's stability and reactivity. The binding of these compounds to Bovine and Human serum albumin was investigated by spectrofluorometric titration. The importance of complex geometry and various ligands for protein binding was shown. These results were complemented by the molecular docking study to elucidate the most important interactions. The thermodynamic parameters of the binding process were determined. The binding to DNA, as one of the main pathways in the cell death cycle, was analyzed by molecular docking. The cytotoxicity was determined towards HCT116, A375, MCF-7, and A2780 cell lines. The most active compound was Cu-PLAG due to the presence of PLAG and two thiocyanate ligands.
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Affiliation(s)
- Violeta Jevtovic
- Department of Chemistry, College of Science, University Ha’il, Ha’il 81451, Saudi Arabia
| | | | - Dejan Milenković
- Department of Science, Institute for Information Technologies, University of Kragujevac, Jovana Cvijića bb, 34000 Kragujevac, Serbia
| | - Zoran Marković
- Department of Science, Institute for Information Technologies, University of Kragujevac, Jovana Cvijića bb, 34000 Kragujevac, Serbia
| | | | - Dušan Dimić
- Faculty of Physical Chemistry, University of Belgrade, Studentski Trg 12–16, 11000 Belgrade, Serbia
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Aleshahidi M, Gholizadeh M, Seyedi SM. Bivalent metal complexes of a novel Schiff base of vitamin B6: green synthesis, characterization, DFT studies, AIM analysis and antibacterial studies. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04833-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chakraborty M, Mohanty M, Dinda R, Sengupta S, Kumar Chattopadhyay S. Cu(II) complexes of a bio-compatible aminoguanidine Schiff base: Histidine sensing and DNA-binding studies. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115554] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Kavitha R, Reddy CVR, Sireesha B. Synthesis, spectroscopic and biological activity evaluation of Ni(II), Cu(II) and Zn(II) complexes of schiff base derived from pyridoxal and 4-fluorobenzohydrazide. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2021; 40:845-866. [PMID: 34379029 DOI: 10.1080/15257770.2021.1961271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
A novel Schiff base ligand, 4-fluoro-N-((3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl)methylene)benzohydrazide (PLFBH) was synthesized by condensationof pyridoxal and 4-fluorobenzohydrazide. Its complexes with Ni(II), Cu(II), and Zn(II) metal ionswere prepared and characterized by spectroscopic IR, 1H-NMR, UV, LC-MS, ESR, and powder XRD studies and by elemental analysis and thermal analysis, molar conductance, and magnetic susceptibility measurements. The results indicate the geometry of the complexes to be hexa coordinate distorted octahedral. Based on the electronic absorption and fluorescence emission spectra and viscosity studies, an intercalative mode of binding of the complexes with CT-DNA was suggested, which was also supported by DNA docking studies. The docking studies of metal complexes with DNA were carried out using Autodock 4.2. The in vitro anticancer assay for the Cu(II)-PLFBH complex was performed to assess the ability of the complex to inhibit human cell proliferation on HeLa human cervical carcinoma cells, MCF-7 human breast carcinoma cells, and A549 human lung carcinoma cells. The Cu(II)-PLFBH complex exhibited moderate to good inhibitory effect on the cancer cell lines studied. The complexes showed good cleavageability toward plasmid pBR322 DNA. The metal complexes were found to show good antibacterial activity against gram positive bacteria, Staphylococcus aureus and Bacillus cereus and gram negative bacteria Escherichia coli and Pseudomonas aeruginosa cultures,while the ligand showed marginal activity.Supplemental data for this article is available online at https://doi.org/10.1080/15257770.2021.1961271 .
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Affiliation(s)
- R Kavitha
- Department of Chemistry, Nizam College, Osmania University, Hyderabad, Telangana, India
| | - Ch Venkata Ramana Reddy
- Department of Chemistry, Jawaharlal Nehru Technological University Hyderabad, Hyderabad, Telangana, India
| | - B Sireesha
- Department of Chemistry, Nizam College, Osmania University, Hyderabad, Telangana, India
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Aggoun D, Messasma Z, Bouzerafa B, Berenguer R, Morallon E, Ouennoughi Y, Ourari A. Synthesis, characterization and DFT investigation of new metal complexes of Ni(II), Mn(II) and VO(IV) containing N,O-donor Schiff base ligand. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hussain A, Mariappan K, Cork DC, Lewandowski LD, Shrestha PK, Giri S, Wang X, Sykes AG. A highly selective pyridoxal-based chemosensor for the detection of Zn( ii) and application in live-cell imaging; X-ray crystallography of pyridoxal-TRIS Schiff-base Zn( ii) and Cu( ii) complexes. RSC Adv 2021; 11:34181-34192. [PMID: 35497295 PMCID: PMC9042327 DOI: 10.1039/d1ra05763d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/25/2021] [Indexed: 12/18/2022] Open
Abstract
In a simple, one-step reaction, we have synthesized a pyridoxal-based chemosensor by reacting tris(hydroxymethyl)aminomethane (TRIS) together with pyridoxal hydrochloride to yield a Schiff-base ligand that is highly selective for the detection of Zn(ii) ion. Both the ligand and the Zn(ii) complex have been characterized by 1H & 13C NMR, ESI-MS, CHN analyses, and X-ray crystallography. The optical properties of the synthesized ligand were investigated in an aqueous buffer solution and found to be highly selective and sensitive toward Zn(ii) ion through a fluorescence turn-on response. The competition studies reveal the response for zinc ion is unaffected by all alkali and alkaline earth metals; and suppressed by Cu(ii) ion. The ligand itself shows a weak fluorescence intensity (quantum yield, Φ = 0.04), and the addition of zinc ion enhanced the fluorescence intensity 12-fold (quantum yield, Φ = 0.48). The detection limit for zinc ion was 2.77 × 10−8 M, which is significantly lower than the WHO's guideline (76.5 μM). Addition of EDTA to a solution containing the ligand–Zn(ii) complex quenched the fluorescence, indicating the reversibility of Zn(ii) binding. Stoichiometric studies indicated the formation of a 2 : 1 L2Zn complex with a binding constant of 1.2 × 109 M−2 (±25%). The crystal structure of the zinc complex shows the same hydrated L2Zn complex, with Zn(ii) ion binding with an octahedral coordination geometry. We also synthesized the copper(ii) complex of the ligand, and the crystal structure showed the formation of a 1 : 1 adduct, revealing 1-dimensional polymeric networks with octahedral coordinated Cu(ii). The ligand was employed as a sensor to detect zinc ion in HEK293 cell lines derived from human embryonic kidney cells grown in tissue culture which showed strong luminescence in the presence of Zn(ii). We believe that the outstanding turn-on response, sensitivity, selectivity, lower detection limit, and reversibility toward zinc ion will find further application in chemical and biological science. The synthesis, characterization, X-ray crystallography, and live-cell imaging of pyridoxal-TRIS Schiff-base ligand which is selective as a luminescence sensor to detect Zn(ii) ion, and the corresponding Zn(ii) and Cu(ii) complexes are described.![]()
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Affiliation(s)
- Anwar Hussain
- Contribution from the Department of Chemistry, University of South Dakota, Vermillion, SD 57069, USA
| | - Kadarkaraisamy Mariappan
- Contribution from the Department of Chemistry, University of South Dakota, Vermillion, SD 57069, USA
| | - Dawson C. Cork
- Contribution from the Department of Chemistry, University of South Dakota, Vermillion, SD 57069, USA
| | - Luke D. Lewandowski
- Contribution from the Department of Chemistry, University of South Dakota, Vermillion, SD 57069, USA
| | - Prem K. Shrestha
- Contribution from the Department of Chemistry, University of South Dakota, Vermillion, SD 57069, USA
| | - Samiksha Giri
- Basic Biomedical Science, University of South Dakota, School of Medicine, Vermillion, SD 57069, USA
| | - Xuejun Wang
- Basic Biomedical Science, University of South Dakota, School of Medicine, Vermillion, SD 57069, USA
| | - Andrew G. Sykes
- Contribution from the Department of Chemistry, University of South Dakota, Vermillion, SD 57069, USA
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Tabatabayi ZS, Homayouni-Tabrizi M, Neamati A, Beyramabadi SA. Mn(II) complex of a vitamin B6 Schiff base as an exclusive apoptosis inducer in human MCF7 and HepG2 cancer cells: Synthesis, characterization, and biological studies. J Cell Biochem 2019; 121:2677-2689. [PMID: 31680295 DOI: 10.1002/jcb.29488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 10/08/2019] [Indexed: 12/31/2022]
Abstract
Herein, a Mn(II) complex of the N,N'-dipyridoxyl(1,4-butanediamine) (═H2 L) Schiff base has been newly synthesized. The synthesized complex was characterized by several experimental methods. In addition, the density functional theory approaches were used for theoretical identification of the complex. A good agreement between the computed and experimental infrared frequencies demonstrates validity of the optimized geometry for the synthesized complex. In a N2 O2 manner, two azomethine nitrogens and two phenolate oxygens of the L2- ligand are coordinated to the Mn2+ metal ion. The biological studies indicate an efficient apoptotic and antioxidant activities of the synthesized [MnL(CH3 OH)2 ] complex on both of the HepG2 and MCF7 cancer cells. Since it has been suggested that the complex is an exclusive potent antitumor for treatment of the human breast and liver cancers.
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Affiliation(s)
- Zohreh S Tabatabayi
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | | | - Ali Neamati
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - S Ali Beyramabadi
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran
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Samini N, Beyramabadi SA, Bamoharram FF. Cu(II) Complex of a Schiff Base Derived from Pyridoxal: Synthesis, Experimental Characterization, DFT Studies, and Aim Analysis. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619080067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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9
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Yavari M, Beyramabadi SA, Morsali A, Bozorgmehr MR. Synthesis, Experimental and Theoretical Studies on N,N′-Dipyridoxyl(4-Chloro-1,2-Phenylenediamine) Tetradentate Ligand and Its Copper(II) Complex. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619080055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Beyramabadi SA, Javan-Khoshkholgh M, Ostad NJ, Gharib A, Ramezanzadeh M, Sadeghi M, Bazian A, Morsali A. Spectroscopic (Ft-Ir, Nmr, Uv-Vis, Fluorescence) and Dft Studies (Molecular Structure, Ir and Nmr Spectral Assignments, Nbo and Fukui Function) of Schiff Bases Derived from 2-Chloro-3-Quinolinecarboxaldehyde. J STRUCT CHEM+ 2018. [DOI: 10.1134/s0022476618060136] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Yavari M, Beyramabadi SA, Morsali A, Bozorgmehr MR. Tautomerization Reaction, Experimental and Theoretical Characterizations of the N,N′-Dipyridoxyl(4-Methyl-1,2-Phenylenediamine) Schiff Base and its Cu(II) Complex. J STRUCT CHEM+ 2018. [DOI: 10.1134/s0022476618050128] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Beyramabadi SA, Khashi M, Morsali A, Gharib A, Chegini H. Experimental and Computational Investigations of 4-((E)-(2-Amino-5- Nitrophenylimino)Methyl)-5- (Hydroxymethyl)-2-Methylpyridin-3-Ol Schiff Base Derived from Vitamin B6. J STRUCT CHEM+ 2018. [DOI: 10.1134/s0022476618060112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Das C, Pakhira B, Rheingold AL, Kumar Chattopadhyay S. Turn on ESIPT based chemosensor for histidine: Application in urine analysis and live cell imaging. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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14
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In-situ nickel(II) complexes of 3-(dimethylamino)-1-propylamine based Schiff base ligands: Structural, electrochemical, biomolecular interaction and antimicrobial properties. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.07.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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15
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Jafari-Moghaddam F, Beyramabadi SA, Khashi M, Morsali A. Three VO 2+ complexes of the pyridoxal-derived Schiff bases: Synthesis, experimental and theoretical characterizations, and catalytic activity in a cyclocondensation reaction. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Mondal S, Chakraborty M, Mondal A, Pakhira B, Blake AJ, Sinn E, Chattopadhyay SK. Cu(ii) complexes of a tridentate N,N,O-donor Schiff base of pyridoxal: synthesis, X-ray structures, DNA-binding properties and catecholase activity. NEW J CHEM 2018. [DOI: 10.1039/c8nj00418h] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DNA binding and catecholase activities of two Cu(ii) complexes [Cu(L1)X] (X = N3, NCS) of pyridoxal derived ligands are reported.
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Affiliation(s)
- Satyajit Mondal
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Shibpur
- Howrah 711103
- India
| | - Moumita Chakraborty
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Shibpur
- Howrah 711103
- India
| | - Antu Mondal
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Shibpur
- Howrah 711103
- India
| | - Bholanath Pakhira
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Shibpur
- Howrah 711103
- India
| | - Alexander J. Blake
- School of Chemistry
- The University of Nottingham
- University Park
- Nottingham
- UK
| | - Ekkehard Sinn
- Chemistry Department
- Western Michigan University
- Kalamazoo
- USA
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Radanović MM, Rodić MV, Armaković S, Armaković SJ, Vojinović-Ješić LS, Leovac VM. Pyridoxylidene aminoguanidine and its copper(II) complexes – Syntheses, structure, and DFT calculations. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1367388] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
| | - Marko V. Rodić
- Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
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Toozandejani T, Beyramabadi SA, Chegini H, Khashi M, Morsali A, Pordel M. Synthesis, experimental and theoretical characterization of a Mn(II) complex of N,N′-dipyridoxyl(1,2-diaminobenzene). J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.07.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Syntheses and characterization of 2-acetylpyridine-aminoguanidine and its copper(II) complexes: Crystallographic and antimicrobial study. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.06.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kundu S, Pramanik AK, Mondal AS, Mondal TK. Ni(II) and Pd(II) complexes with new N,O donor thiophene appended Schiff base ligand: Synthesis, electrochemistry, X-ray structure and DFT calculation. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.03.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Synthesis, characterization and antimicrobial activity of copper(II) complexes with hydrazone derived from 3-hydroxy-5-(hydroxymethyl)-2-methylpyridine-4-carbaldehyde. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.10.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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Andrade GR, Kunsminskas J, Pizzuti L, Anjos AD, Inglez SD, Tirloni B, Suegama PH. Synthesis and X-ray structural characterization of square-pyramidal copper(II) complex with aminoguanidine derivative. INORG CHEM COMMUN 2015. [DOI: 10.1016/j.inoche.2015.09.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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23
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Transition metal complexes with thiosemicarbazide-based ligands. Part 63. Syntheses, structures and physicochemical characterization of the first chromium(III) complexes with pyridoxal semi- and thiosemicarbazones. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.09.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kundu S, Biswas S, Mondal AS, Roy P, Mondal TK. Template synthesis of square-planar Ni(II) complexes with new thiophene appended Schiff base ligands: Characterization, X-ray structure and DFT calculation. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.07.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Beyramabadi SA, Morsali A, Shams A. N,N′-dipyridoxyl(1,2-diaminocyclohexane) and its Cu(II) complex: Synthesis, experimental and theoretical studies. J STRUCT CHEM+ 2015. [DOI: 10.1134/s0022476615020067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Vojinović-Ješić LS, Radanović MM, Rodić MV, Jovanović LS, Češljević VI, Joksović MD. Syntheses, structures and spectral characterization of copper(II) and dioxidovanadium(V) complexes with salicylidene-aminoguanidine. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Solís-Calero C, Ortega-Castro J, Hernández-Laguna A, Muñoz F. DFT study of the mechanism of the reaction of aminoguanidine with methylglyoxal. J Mol Model 2014; 20:2202. [PMID: 24705776 DOI: 10.1007/s00894-014-2202-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 03/04/2014] [Indexed: 11/28/2022]
Abstract
We have studied the mechanism of the reaction between aminoguanidine (AG) and methylglyoxal (MG) by carrying out Dmol3/DFT calculations, obtaining intermediates, transition-state structures, and free-energy profiles for all of the elementary steps of the reaction. Designed models included explicit water solvent, which forms hydrogen-bond networks around the reactants and intermediate molecules, facilitating intramolecular proton transfer in some steps of the reaction mechanism. The reaction take place in four steps, namely: (1) formation of a guanylhydrazone-acetylcarbinol adduct by condensation of AG and MG; (2) dehydration of the adduct; (3) formation of an 1,2,4-triazine derivative by ring closure; and (4) dehydration with the formation of 5-methyl 3-amino-1,2,4-triazine as the final product. From a microkinetic point of view, the first dehydration step was found to be the rate-determining step for the reaction, with the reaction having an apparent activation energy of 12.65 kcal mol⁻¹. Additionally, some analogous structures of intermediates and transition states for the reaction between AG and 2,3-dicarbonyl-phosphatidylethanolamine, a possible intermediate in Amadori-glycated phosphatidylethanolamine (Amadori-PE) autooxidation, were obtained to evaluate the reaction above a phosphatidylethanolamine (PE) surface. Our results are in agreement with experimental results obtaining by other authors, showing that AG is efficient at trapping dicarbonyl compounds such as methylglyoxal, and by extension these compounds joined to biomolecules such as PE in environments such as surfaces and their aqueous surroundings.
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Affiliation(s)
- Christian Solís-Calero
- Departament de Química, Institut d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, E-07122, Palma de Mallorca, Spain
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Ozdemir N, Inkaya E, Sarıpınar E, Akyüz L, Ilhan IÖ, Aydın S, Dinçer M, Büyükgüngör O. Synthesis, spectroscopic (FT-IR/NMR) characterization, X-ray structure and DFT studies on (E)-2-(1-phenylethylidene) hydrazinecarboximidamide nitrate hemimethanol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 114:175-182. [PMID: 23770506 DOI: 10.1016/j.saa.2013.05.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2013] [Revised: 05/13/2013] [Accepted: 05/14/2013] [Indexed: 06/02/2023]
Abstract
The title molecular salt, (E)-2-(1-phenylethylidene) hydrazinecarboximidamide nitrate hemimethanol C9H13N4(+)·NO3(-)·0.5CH4O, was synthesized and characterized by elemental analysis, FT-IR and NMT spectroscopies, and single-crystal X-ray diffraction technique. Quantum chemical calculations were performed to study the molecular and spectroscopic properties of the title compound, and the results were compared with the experimental findings. The calculated results show that the optimized geometry can well reproduce the crystal structure parameters, and the theoretical vibrational frequencies and GIAO (1)H and (13)CNMR chemical shifts show good agreement with experimental values. The dipole moment, linear polarizability and first hyperpolarizability values were also computed. The linear polarizabilities and first hyper polarizabilities of the studied molecule indicate that the compound is a good candidate of nonlinear optical materials. On the basis of the thermodynamic properties of the title compound at different temperatures have been calculated, revealing the correlations between standard heat capacities (C) standard entropies (S), and standard enthalpy changes (H) and temperatures.
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Affiliation(s)
- Namık Ozdemir
- Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, 55139 Samsun, Turkey.
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Lalović MM, Jovanović LS, Vojinović-Ješić LS, Leovac VM, Češljević VI, Rodić MV, Divjaković V. Syntheses, crystal structures, and electrochemical characterizations of two octahedral iron(III) complexes with Schiff base of pyridoxal and aminoguanidine. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.737916] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Mirjana M. Lalović
- a Faculty of Sciences , University of Novi Sad , Trg Dositeja Obradovića 3, 21000 Novi Sad , Serbia
| | - Ljiljana S. Jovanović
- a Faculty of Sciences , University of Novi Sad , Trg Dositeja Obradovića 3, 21000 Novi Sad , Serbia
| | | | - Vukadin M. Leovac
- a Faculty of Sciences , University of Novi Sad , Trg Dositeja Obradovića 3, 21000 Novi Sad , Serbia
| | - Valerija I. Češljević
- a Faculty of Sciences , University of Novi Sad , Trg Dositeja Obradovića 3, 21000 Novi Sad , Serbia
| | - Marko V. Rodić
- a Faculty of Sciences , University of Novi Sad , Trg Dositeja Obradovića 3, 21000 Novi Sad , Serbia
| | - Vladimir Divjaković
- a Faculty of Sciences , University of Novi Sad , Trg Dositeja Obradovića 3, 21000 Novi Sad , Serbia
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Synthesis, characterization, and antibacterial activity of a cobalt(II) Schiff base complex derived from pyridoxal and sulfanilic acid. TRANSIT METAL CHEM 2012. [DOI: 10.1007/s11243-012-9649-5] [Citation(s) in RCA: 5] [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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Synthesis, characterization and crystal structure of square-pyramidal copper(II) complexes with pyridoxylidene aminoguanidine. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.03.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ortega-Castro J, Frau J, Casasnovas R, Fernández D, Donoso J, Muñoz F. High- and low-spin Fe(III) complexes of various AGE inhibitors. J Phys Chem A 2012; 116:2961-71. [PMID: 22369344 DOI: 10.1021/jp210188w] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Density functional theory calculations [CPCM/UM06/6-31+G(d,p)] were used to elucidate the structures and relative stability of Fe(III) complexes with various ligands that inhibit the formation of advanced glycation end products (AGEs) or iron overloaded disease (viz. aminoguanidine, pyridoxamine, LR-74, Amadori compounds, and ascorbic acid). EDTA was used as the free energy reference ligand. The distorted neutral octahedral complex containing one iron atom and three molecules of pyridoxamine [Fe(PM)(3)] was found to be the most stable. The stability of the complexes decreases in the following chelate sequence: pyridoxamine, Amadori complex, aminoguanidine, LR inhibitor, and ascorbic acid.
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Affiliation(s)
- J Ortega-Castro
- Institut d'Investigació en Ciències de la Salut (IUNICS), Departament de Química, Universitat de les Illes Balears, E-07122 Palma de Mallorca, Spain
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Beyramabadi SA, Morsali A, Khoshkholgh MJ, Esmaeili AA. N,N'-dipyridoxyl Schiff bases: synthesis, experimental and theoretical characterization. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 83:467-471. [PMID: 21943715 DOI: 10.1016/j.saa.2011.08.067] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Revised: 08/13/2011] [Accepted: 08/29/2011] [Indexed: 05/31/2023]
Abstract
Three N,N'-dipyridoxyl Schiff bases (L1, L2 and L3) have been newly synthesized and characterized by IR, (1)H NMR, mass spectrometry and elemental analysis. Their optimized geometries together with the theoretical assignment of the vibrational frequencies and the (1)H NMR chemical shifts of them have been computed by using density functional theory (DFT) method. In the optimized structures of the Schiff bases, two pyridine rings are not in a same plane; however the substitutions are essentially in the same plane with the pyridine rings. Also, the benzene ring(s) in the bridge region is (are) not in the same plane with the pyridine rings and azomethine moieties. In all the species, engagement in intramolecular-hydrogen bonds causes to weakness of the phenolic O-H bonds. Consistency between the theoretical results and experimental evidence confirms suitability of the optimized geometries for the synthesized Schiff bases.
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Affiliation(s)
- S Ali Beyramabadi
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
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Study on potential antitumor mechanism of a novel Schiff Base copper(II) complex: Synthesis, crystal structure, DNA binding, cytotoxicity and apoptosis induction activity. J Inorg Biochem 2011; 105:728-37. [DOI: 10.1016/j.jinorgbio.2011.01.004] [Citation(s) in RCA: 175] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 01/04/2011] [Accepted: 01/07/2011] [Indexed: 12/30/2022]
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