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Soliman AQS, Abdel-Latif SA, Abdel-Khalik S, Abbas SM, Ahmed OM. Design, synthesis, structural characterization, molecular docking, antibacterial, anticancer activities, and density functional theory calculations of novel MnII, CoII, NiII, and CuII complexes based on pyrazolone-sulfadiazine azo-dye ligand. J Mol Struct 2024; 1318:139402. [DOI: 10.1016/j.molstruc.2024.139402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2024]
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Moharana P, Santosh G. Amphiphilic perylene diimide-based fluorescent hemispherical aggregates as probes for metal ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 297:122696. [PMID: 37043834 DOI: 10.1016/j.saa.2023.122696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/24/2023] [Accepted: 03/31/2023] [Indexed: 05/14/2023]
Abstract
The self-assembly behaviour of a newly synthesized amphiphilic core-positioned thioester appended with carboxylic acid functionalized perylene diimide derivative is studied in different organic solvents. Fluorescent J-type hemispherical aggregates are formed in THF solution. The effect of added metal ions on these fluorescent aggregates is evaluated using spectroscopic techniques, where we found these probes bind selectively to Fe3+ and Ba2+ ions. Two equivalents of Fe3+ ions bind cooperatively to one equivalent of perylene diimide derivative in the hemispherical aggregates with a binding constant of 1.4×107 M-1 and the limit of detection (LOD) was calculated to be 8.66×10-6 M. The positive cooperative binding effect of Fe3+ ions towards hemispherical aggregates equipped with perylene diimide derivatives leads to supramolecular polymerization. Ba2+ ions showed selectivity and sensitivity towards the fluorescent aggregates in THF by quenching the fluorescence intensity completely. The linear Stern-Volmer plot with a Stern-Volmer constant value of 502.6 M-1 signifies the heavy atom effect of Ba2+ ions, leading to fluorescence quenching. The morphological transformation of the fluorescent J-type hemispherical aggregates in the presence of Fe3+ and Ba2+ was studied in detail using electron microscopy.
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Affiliation(s)
- Prajna Moharana
- Division of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Chennai 600127, India
| | - G Santosh
- Division of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Chennai 600127, India.
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Palakkeezhillam VNV, Haribabu J, Manakkadan V, Rasin P, Varughese RE, Gayathri D, Bhuvanesh N, Echeverria C, Sreekanth A. Synthesis, spectroscopic characterizations, single crystal X-ray analysis, DFT calculations, in vitro biological evaluation and in silico evaluation studies of thiosemicarbazones based 1,3,4-thiadiazoles. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Fathy A, Ibrahim AB, Elkhalik SA, Villinger A, Abbas S. New iron(III) complexes with 2-formylpyridine thiosemicarbazones: Synthetic aspects, structural and spectral analyses and cytotoxicity screening against MCF-7 human cancer cells. Heliyon 2023; 9:e13008. [PMID: 36711299 PMCID: PMC9880397 DOI: 10.1016/j.heliyon.2023.e13008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/25/2023] Open
Abstract
2-Formylpyridine thiosemicarbazone - iron (III) chelates [ F e L 2 ] C l • 2 H 2 O {L = L1 (C1) [HL 1 = 4-(4-Nitrophenyl)-1-((pyridin-2-yl)methylene)thiosemicarbazide] and L = L2 (C2) [HL 2 = 4-(2,5-Dimethoxyphenyl)-1-((pyridin-2-yl)methylene)thiosemicarbazide]} were prepared. The two ligand anions in each complex resulted in saturation of the iron coordination number and consequently the existence of these complexes as 1:1 electrolytes. As well, the iron in these complexes exhibits low-spin electronic configuration. X-ray crystallography of complex C1 indicated its triclinic crystal system and P 1 ‾ space group. In addition, it proved the ligation through a thiol sulfur atom and two nitrogen atoms of pyridine and azomethine groups. This is while the presence of two water molecules of crystallization in the complex structure was also indicated. The ligand HL 1 was selected for cytotoxicity screening against human MCF-7, A-549, HEPG-2 and HCT-116 cancer cells and the most enhanced activities were detected against the breast cells. Against these cells, the compounds HL 1 , HL 2 , C1 and C2 induced cytotoxicity, respectively, with IC50 values of 52.4, 145.4, 34.3 and 62.0 μM. However, against the healthy BHK cells, HL 1 and HL 2 caused cytotoxicity, respectively, with IC50 values of 54.8 and 110.6 μM and cytotoxicity with percent viabilities of 56.7 and 55.4% of the BHK cells by the complexes (137.4 μM of C1 and 131.9 μM of C2) was determined. These activities against MCF-7 cells are less significant compared with the measured value for doxorubicin. But this standard is more toxic to normal cells than the thiosemicarbazones (IC50 (doxorubicin) = 9.66 μM against MCF-7 cells and 36.42 μM against BHK cells).
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Affiliation(s)
- Amany Fathy
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62521, Egypt
| | - Ahmed B.M. Ibrahim
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
- Corresponding author.
| | - S. Abd Elkhalik
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62521, Egypt
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany
| | - S.M. Abbas
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62521, Egypt
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Spectrophotometric Determination of Formation Constants of Iron(III) Complexes with Several Ligands. CHEMISTRY 2022. [DOI: 10.3390/chemistry4030050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dye-sensitized solar cells transform solar light into electricity. One commonly used dye is a ruthenium complex. However, the use of ruthenium has been shown to have several disadvantages. In this study, via singular spectrum analysis using HypSpec software, we determined the formation constants and calculated individual electronic spectra of species of iron(III) with several ligands (1,2-diaminoethane, 1,3-diaminopropane, 1,4-diaminobutane, 2,2′-bipyridyl, 5,5-dimethyl-2,2′-bipyridyl, 4,4′-di-tert-butyl-2,2′-bipyridyl, 1,10-phenanthroline, and 3,4,7,8-tetramethyl-1,10-phenanthroline) in methanol solution. We present a spectral comparison of the complexes reported here to the ruthenium complex: tris-(2,2′-bipyridyl)ruthenium(II).
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Segoviano-Garfias JJN, Zanor GA, Ávila-Ramos F, Bivián-Castro EY. Equilibrium Studies of Iron (III) Complexes with Either Pyrazine, Quinoxaline, or Phenazine and Their Catecholase Activity in Methanol. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103257. [PMID: 35630733 PMCID: PMC9143456 DOI: 10.3390/molecules27103257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/09/2022] [Accepted: 05/15/2022] [Indexed: 11/21/2022]
Abstract
Currently, catalysts with oxidative activity are required to create valuable chemical, agrochemical, and pharmaceutical products. The catechol oxidase activity is a model reaction that can reveal new oxidative catalysts. The use of complexes as catalysts using iron (III) and structurally simple ligands such as pyrazine (pz), quinoxaline (qx), and phenazine (fz) has not been fully explored. To characterize the composition of the solution and identify the abundant species which were used to catalyze the catechol oxidation, the distribution diagrams of these species were obtained by an equilibrium study using a modified Job method in the HypSpec software. This allows to obtain also the UV-vis spectra calculated and the formation constants for the mononuclear and binuclear complexes with Fe3+ including: [Fe(pz)]3+, [Fe2(pz)]6+, [Fe(qx)]3+, [Fe2(qx)]6+, [Fe(fz)]3+, and [Fe2(fz)]6+. The formation constants obtained were log β110 = 3.2 ± 0.1, log β210 = 6.9 ± 0.1, log β110 = 4.4 ± 0.1, log β210 = 8.3 ± 0.1, log β110 = 6.4 ± 0.2, and log β210 = 9.9 ± 0.2, respectively. The determination of the catechol oxidase activity for these complexes did not follow a traditional Michaelis–Menten behavior.
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Affiliation(s)
- José J. N. Segoviano-Garfias
- División de Ciencias de la Vida (DICIVA), Campus Irapuato-Salamanca, Universidad de Guanajuato, Ex Hacienda El Copal, Carretera Irapuato-Silao Km. 9, Irapuato 36500, Mexico; (G.A.Z.); (F.Á.-R.)
- Correspondence: ; Tel.: +52-47-3740-5320
| | - Gabriela A. Zanor
- División de Ciencias de la Vida (DICIVA), Campus Irapuato-Salamanca, Universidad de Guanajuato, Ex Hacienda El Copal, Carretera Irapuato-Silao Km. 9, Irapuato 36500, Mexico; (G.A.Z.); (F.Á.-R.)
| | - Fidel Ávila-Ramos
- División de Ciencias de la Vida (DICIVA), Campus Irapuato-Salamanca, Universidad de Guanajuato, Ex Hacienda El Copal, Carretera Irapuato-Silao Km. 9, Irapuato 36500, Mexico; (G.A.Z.); (F.Á.-R.)
| | - Egla Yareth Bivián-Castro
- Centro Universitario de los Lagos, Universidad de Guadalajara, Enrique Díaz de León 1144, Col. Paseos de la Montaña, Lagos de Moreno 47460, Mexico;
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Xavier JS, Jayabalan K, Ragavendran V, NityanandaShetty A. Syntheses, quantum mechanical modeling, biomolecular interaction and in vitro anticancer - Tubulin activity of thiosemicarbazones. Bioorg Chem 2020; 102:104081. [PMID: 32711086 DOI: 10.1016/j.bioorg.2020.104081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/19/2020] [Accepted: 07/04/2020] [Indexed: 12/25/2022]
Abstract
A new series of thiosemicarbazones were designed and synthesized. Their structures were confirmed by spectral characterization and single crystal XRD studies. Compounds MTSC-2 and ETSC-3 crystallized in the orthorhombic crystal system with space group Pbc21 andPca21respectively. Density functional theory computational studies were performed on MTSC-2 and ETSC-3 along with natural bond orbital analysis and Mulliken population analysis to study the structural and electronic properties of the thiosemicarbazones. The HOMOs of the two thiosemicarbazones are -5.2943 and -5.1133 eV respectively while the LUMOs are -1.6879 and -1.6398 eV respectively. The energy gap is 3.6064 and 3.4736 eV respectively. Molecular docking studies were performed to determine the binding mode of the thiosemicarbazones against β-tubulin. The theoretical studies were further supplemented with tubulin polymerization inhibition assay. All the four thiosemicarbazones proved effective in inhibiting the polymerization of α- and β-tubulin heterodimers into microtubules. The anticancer activity of these compounds showed their extreme potency against A549 and HepG2 cancer cell lines with IC50 values of 0.051 - 0.189 µm and 0.042 - 0.136 µm respectively. Compound PTSC-4 showed the highest activity both against tubulin and the two cancer cell lines. This was in correlation with the theoretical studies. Hence, these four compounds, specifically PTSC-4, can be considered to be potential leads in the development of non-metallic anticancer agents.
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Affiliation(s)
- Janet Sabina Xavier
- Department of Chemistry, Sathyabama Institute of Science and Technology, Chennai 600119, India
| | - Karthikeyan Jayabalan
- Department of Chemistry, Sathyabama Institute of Science and Technology, Chennai 600119, India.
| | - V Ragavendran
- Department of Physics, Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya, Kanchipuram 631561, India
| | - A NityanandaShetty
- Department of Chemistry, National Institute of Technology Karnataka, Mangalore 575025, India
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8
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Nickel Complexes Bearing SNN and SS Donor Atom Ligands: Synthesis, Structural Characterization and Biological activity. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Synthesis and characterisations of copper(II) complexes of 5-methoxyisatin thiosemicarbazones: Effect of N-terminal substitution on DNA/protein binding and biological activities. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.04.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Ibrahim AB, Farh MK, Mayer P. Synthesis, structural studies and antimicrobial evaluation of nickel (II) complexes of NNS tridentate thiosemicarbazone based ligands. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4883] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ahmed B.M. Ibrahim
- Department of Chemistry, Faculty of ScienceAssiut University Assiut 71515 Egypt
| | - Micheal K. Farh
- Department of Chemistry, Faculty of ScienceAssiut University Assiut 71515 Egypt
| | - Peter Mayer
- Department ChemieLudwig‐Maximilians‐Universität München Butenandtstr. 5‐13, Haus D 81377 Munich Germany
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Heffeter P, Pape VFS, Enyedy ÉA, Keppler BK, Szakacs G, Kowol CR. Anticancer Thiosemicarbazones: Chemical Properties, Interaction with Iron Metabolism, and Resistance Development. Antioxid Redox Signal 2019; 30:1062-1082. [PMID: 29334758 DOI: 10.1089/ars.2017.7487] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
SIGNIFICANCE During the past decades, thiosemicarbazones were clinically developed for a variety of diseases, including tuberculosis, viral infections, malaria, and cancer. With regard to malignant diseases, the class of α-N-heterocyclic thiosemicarbazones, and here especially 3-aminopyridine-2-carboxaldehyde thiosemicarbazone (Triapine), was intensively developed in multiple clinical phase I/II trials. Recent Advances: Very recently, two new derivatives, namely COTI-2 and di-2-pyridylketone 4-cyclohexyl-4-methyl-3-thiosemicarbazone (DpC) have entered phase I evaluation. Based on the strong metal-chelating/metal-interacting properties of thiosemicarbazones, interference with the cellular iron (and copper) homeostasis is assumed to play an important role in their biological activity. CRITICAL ISSUES In this review, we summarize and analyze the data on the interaction of (α-N-heterocyclic) thiosemicarbazones with iron, with the special aim of bridging the current knowledge on their mode of action from chemistry to (cell) biology. In addition, we highlight the difference to classical iron(III) chelators such as desferrioxamine (DFO), which are used for the treatment of iron overload. FUTURE DIRECTIONS We want to emphasize that thiosemicarbazones are not solely removing iron from the cells/organism. In contrast, they should be considered as iron-interacting drugs influencing diverse biological pathways in a complex and multi-faceted mode of action. Consequently, in addition to the discussion of physicochemical properties (e.g., complex stability, redox activity), this review contains an overview on the diversity of cellular thiosemicarbazone targets and drug resistance mechanisms.
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Affiliation(s)
- Petra Heffeter
- 1 Department of Medicine I, Institute of Cancer Research, Comprehensive Cancer Center of the Medical University, Medical University of Vienna , Vienna, Austria .,2 Research Cluster "Translational Cancer Therapy Research," Vienna, Austria
| | - Veronika F S Pape
- 3 Institute of Enzymology , Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary .,4 Department of Physiology, Faculty of Medicine, Semmelweis University , Budapest, Hungary
| | - Éva A Enyedy
- 5 Department of Inorganic and Analytical Chemistry, University of Szeged , Szeged, Hungary
| | - Bernhard K Keppler
- 2 Research Cluster "Translational Cancer Therapy Research," Vienna, Austria .,6 Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna , Vienna, Austria
| | - Gergely Szakacs
- 1 Department of Medicine I, Institute of Cancer Research, Comprehensive Cancer Center of the Medical University, Medical University of Vienna , Vienna, Austria .,3 Institute of Enzymology , Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Christian R Kowol
- 2 Research Cluster "Translational Cancer Therapy Research," Vienna, Austria .,6 Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna , Vienna, Austria
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Synthesis, structural and antimicrobial studies of binary and ternary complexes of a new tridentate thiosemicarbazone. Future Med Chem 2018; 10:2507-2519. [PMID: 30499339 DOI: 10.4155/fmc-2018-0194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A new thiosemicarbazone ligand was synthesized and characterized using spectroscopic techniques (UV-Vis and IR) and synchrotron x-ray powder diffraction. With M2+ = Mn2+, Zn2+ and Cd2+, coordination compounds of the type (M[L]2) were isolated. In the presence of sodium dithiocarbamate salts (NadiEtdtc.3H2O = sodium diethyldithiocarbamate trihydrate and Napipdtc = sodium piperidinedithiocarbamate), Zn2+ and Cd2+ were able to form ternary octahedral complexes where each metal binds a deprotonated (thiosemicarbazone) ligand, a monobasic dithiocarbamate ligand and a water molecule. In vitro biological evaluation tests of the free HL ligand and its metal complexes against selected fungal and bacterial cultures were performed. Compared with HL, the complexes displayed enhanced biological activities and ternary Zn (II) complexes displayed comparable antibacterial activities to the chloramphenicol standard.
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Ibrahim AB, Farh MK, El-Gyar S, EL-Gahami M, Fouad DM, Silva F, Santos IC, Paulo A. Synthesis, structural studies and antimicrobial activities of manganese, nickel and copper complexes of two new tridentate 2‑formylpyridine thiosemicarbazone ligands. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.08.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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14
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Ibrahim AB, Farh MK, Mayer P. Copper complexes of new thiosemicarbazone ligands: Synthesis, structural studies and antimicrobial activity. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.06.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Moradi-Shoeili Z, Zare M. The Effect of Substituents on Catalytic Performance of bis-Thiosemicarbazone Mo(VI) Complexes: Synthesis and Spectroscopic, Electrochemical, and Functional Properties. KINETICS AND CATALYSIS 2018. [DOI: 10.1134/s002315841802012x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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16
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Copper, nickel and zinc complexes of 3-acetyl coumarin thiosemicarbazone: Synthesis, characterization and in vitro evaluation of cytotoxicity and DNA/protein binding properties. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.06.044] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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17
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Zhang W, Shi S, Zhu W, Yang C, Li S, Liu X, Hu N, Huang L, Wang R, Suo Y, Li Z, Wang J. In-Situ Fixation of All-Inorganic Mo-Fe-S Clusters for the Highly Selective Removal of Lead(II). ACS APPLIED MATERIALS & INTERFACES 2017; 9:32720-32726. [PMID: 28872826 DOI: 10.1021/acsami.7b08967] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The selective adsorption by suitable substrate materials is considered one of the most economical methods. In this work, an all-inorganic bimetallic Mo-Fe-S cluster is facilely achieved through in situ chemical fixation of tetrathiomolybdate (TTM) on Fe3O4 nanoparticles (NPs) at room temperature (donated as FeMoS NPs). The bimetallic building blocks on the obtained FeMoS NPs possess a monovacancy species of sulfur, endowing FeMoS NPs with a selectivity order of Zn2+, Mn2+, Ni2+ < Cd2+ ≪ Cu2+ < Pb2+ for metal-ion adsorption, a novel application for the Mo-Fe-S clusters. Particularly, with the highest selectivity for Pb2+ (Kd ≈ 107), which is about 3 × 103-1 × 106 times higher than those for other ions and has exceeded that of a series of outstanding sorbents reported for Pb2+, FeMoS NPs can efficiently reduce the concentration of Pb2+ from ∼10 ppm to an extremely low level of ∼1 ppb. This facile and rational fabrication of the Mo-Fe-S cluster with Fe3O4 represents a feasible approach to cheaply develop novel and efficient materials for the selective removal of lead(II).
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Affiliation(s)
- Wentao Zhang
- College of Food Science and Engineering, Northwest A&F University , Yangling, 712100 Shaanxi, P. R. China
| | - Shuo Shi
- School of Medicine, Xi'an Jiaotong University , Xi'an, 710061 Shaanxi, P. R. China
| | - Wenxin Zhu
- College of Food Science and Engineering, Northwest A&F University , Yangling, 712100 Shaanxi, P. R. China
| | - Chengyuan Yang
- College of Food Science and Engineering, Northwest A&F University , Yangling, 712100 Shaanxi, P. R. China
| | - Sihang Li
- College of Food Science and Engineering, Northwest A&F University , Yangling, 712100 Shaanxi, P. R. China
| | - Xinnan Liu
- College of Food Science and Engineering, Northwest A&F University , Yangling, 712100 Shaanxi, P. R. China
| | - Na Hu
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences , Xining, 810008 Qinghai, P. R. China
| | - Lunjie Huang
- College of Food Science and Engineering, Northwest A&F University , Yangling, 712100 Shaanxi, P. R. China
| | - Rong Wang
- College of Food Science and Engineering, Northwest A&F University , Yangling, 712100 Shaanxi, P. R. China
| | - Yourui Suo
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences , Xining, 810008 Qinghai, P. R. China
| | - Zhonghong Li
- College of Food Science and Engineering, Northwest A&F University , Yangling, 712100 Shaanxi, P. R. China
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University , Yangling, 712100 Shaanxi, P. R. China
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Harikrishnan VK, Basheer SM, Joseph N, Sreekanth A. Colorimetric and fluorimetric response of salicylaldehyde dithiosemicarbazone towards fluoride, cyanide and copper ions: Spectroscopic and TD-DFT studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 182:160-167. [PMID: 28433803 DOI: 10.1016/j.saa.2017.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 03/06/2017] [Accepted: 04/09/2017] [Indexed: 06/07/2023]
Abstract
The sensing mechanism of salicylaldehyde phenyldithiosemicarbazone (SDTSC) chemosensor has been investigated by spectroscopic and TD-DFT methods. The SDTSC shows colourimetric and spectral changes towards fluoride, cyanide and copper ions. The interaction between SDTSC with fluoride, cyanide and copper ions was examined through their absorption and fluorescence behaviour, and found that SDTSC has more sensing ability towards Cu2+ ion than CN- and F- ions. The 1H NMR titration with SDTSC and F- gives the structural changes in the sensing process. The reversibility of SDTSC was also evaluated and thus it is confirmed as a reusable chemosensor which can be clarified by the "Read-Erase-Read-Write" logic system. The DFT and TD-DFT calculations give the detailed sensing mechanism of SDTSC towards fluoride ion. The potential energy surface (PES) analysis confirms the excited state electron transfer mechanism.
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Affiliation(s)
| | - Sabeel M Basheer
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620 015, India
| | - Nithin Joseph
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620 015, India
| | - Anandaram Sreekanth
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620 015, India.
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Spectroscopic and TDDFT investigation on highly selective fluorogenic chemosensor and construction of molecular logic gates. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 72:667-675. [DOI: 10.1016/j.msec.2016.11.131] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 11/18/2016] [Accepted: 11/26/2016] [Indexed: 11/23/2022]
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Basheer SM, Sreekanth A. TD-DFT study on the fluoride and copper ion sensing mechanism of pyrene N(4) phenyl thiosemicarbazone. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.03.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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21
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Basheer SM, Willis AC, Pace RJ, Sreekanth A. Spectroscopic and TD-DFT studies on the turn-off fluorescent chemosensor based on anthraldehyde N(4) cyclohexyl thiosemicarbazone for the selective recognition of fluoride and copper ions. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.01.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hosseini-Yazdi SA, Hosseinpour S, Khandar AA, White J. Synthesis, characterization, and X-ray crystal structures of copper(II) and nickel(II) complexes with two bis(thiosemicarbazone) ligands and investigation of their electrochemical behavior. TRANSIT METAL CHEM 2015. [DOI: 10.1007/s11243-015-9997-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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23
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Haque RA, Salam M, Arafath MA. New organotin(IV) complexes with N(4)-methylthiosemicarbazone derivatives prepared from 2,3-dihydroxybenzaldehyde and 2-hydroxy-5-methylbenzaldehyde: synthesis, characterization, and cytotoxic activity. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1057133] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Rosenani A. Haque
- The School of Chemical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - M.A. Salam
- The School of Chemical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Md. Azharul Arafath
- The School of Chemical Sciences, Universiti Sains Malaysia, Penang, Malaysia
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24
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Sankaraperumal A, Nityananda Shetty A, Karthikeyan J. Synthesis, Structural Characterization, and Biological Application of p-[N,N-bis(2-chloroethyl) Aminobenzaldehyde Thiosemicarbazone and Its Nickel (II) Complex. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/15533174.2013.862692] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - A. Nityananda Shetty
- Department of Chemistry, National Institute of Technology Karnataka, Mangalore, India
| | - J. Karthikeyan
- Department of Chemistry, Sathyabama University, Chennai, India
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25
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Hosseini-Yazdi SA, Hosseinpour S, Khandar AA, Kassel WS, Piro NA. Copper(II) and nickel(II) complexes with two new bis(thiosemicarbazone) ligands: Synthesis, characterization, X-ray crystal structures and their electrochemistry behavior. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.12.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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26
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Moradi-Shoeili Z, Zare M, Bagherzadeh M, Kubicki M, Boghaei DM. Synthesis, structural characterization, and catalytic reactivity of a new molybdenum(VI) complex containing 1,3,4-thiadiazole derivative as a tridentate NNO donor ligand. J COORD CHEM 2015. [DOI: 10.1080/00958972.2014.993321] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Zeinab Moradi-Shoeili
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
- Faculty of Sciences, Department of Chemistry, University of Guilan, Rasht, Iran
| | - Maryam Zare
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
- Materials Science & Engineering Department, Golpayegan University of Technology, Golpayegan, Iran
| | | | - Maciej Kubicki
- Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland
| | - Davar M. Boghaei
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
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27
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Study in Aqueous Solutions of Bioactive 2-Pyridineformamide-Derived Thiosemicarbazones and Their Iron(II) and Iron(III) Complexes. J SOLUTION CHEM 2013. [DOI: 10.1007/s10953-013-9977-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Sankaraperumal A, Karthikeyan J, Shetty AN, Lakshmisundaram R. Nickel(II) complex of p-[N,N-bis(2-chloroethyl)amino]benzaldehyde-4-methyl thiosemicarbazone: Synthesis, structural characterization and biological application. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.11.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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29
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Palanimuthu D, Shinde SV, Somasundaram K, Samuelson AG. In Vitro and in Vivo Anticancer Activity of Copper Bis(thiosemicarbazone) Complexes. J Med Chem 2013; 56:722-34. [DOI: 10.1021/jm300938r] [Citation(s) in RCA: 187] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Duraippandi Palanimuthu
- Department
of Inorganic and Physical Chemistry, and ‡Department of Microbiology and
Cell Biology, Indian Institute of Science, Bangalore, India 560012
| | - Sridevi Vijay Shinde
- Department
of Inorganic and Physical Chemistry, and ‡Department of Microbiology and
Cell Biology, Indian Institute of Science, Bangalore, India 560012
| | - Kumaravel Somasundaram
- Department
of Inorganic and Physical Chemistry, and ‡Department of Microbiology and
Cell Biology, Indian Institute of Science, Bangalore, India 560012
| | - Ashoka G. Samuelson
- Department
of Inorganic and Physical Chemistry, and ‡Department of Microbiology and
Cell Biology, Indian Institute of Science, Bangalore, India 560012
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30
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Sathyadevi P, Krishnamoorthy P, Jayanthi E, Butorac RR, Cowley AH, Dharmaraj N. Studies on the effect of metal ions of hydrazone complexes on interaction with nucleic acids, bovine serum albumin and antioxidant properties. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.11.033] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Shongwe MS, Al-Rahbi SH, Al-Azani MA, Al-Muharbi AA, Al-Mjeni F, Matoga D, Gismelseed A, Al-Omari IA, Yousif A, Adams H, Morris MJ, Mikuriya M. Coordination versatility of tridentate pyridyl aroylhydrazones towards iron: tracking down the elusive aroylhydrazono-based ferric spin-crossover molecular materials. Dalton Trans 2012; 41:2500-14. [DOI: 10.1039/c1dt11407g] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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32
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Kumar SLA, Gopiraman M, Kumar MS, Sreekanth A. 2-Acetylpyridine-N(4)-Morpholine Thiosemicarbazone (HAcpMTSc) as a Corrosion Inhibitor on Mild Steel in HCl. Ind Eng Chem Res 2011. [DOI: 10.1021/ie200487g] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Mayakrishnan Gopiraman
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, Tiruchirappalli 620015, Tamilnadu, India
| | - Moorthy Saravana Kumar
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, Tiruchirappalli 620015, Tamilnadu, India
| | - Anandaram Sreekanth
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, Tiruchirappalli 620015, Tamilnadu, India
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33
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Mangalam NA, Sivakumar S, Kurup MRP, Suresh E. Design and characterization of Cu(II) complexes from 2-benzoylpyridine benzhydrazone: crystallographic evidence for coordination versatility. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:686-692. [PMID: 20018559 DOI: 10.1016/j.saa.2009.11.040] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2009] [Accepted: 11/17/2009] [Indexed: 05/28/2023]
Abstract
The syntheses and characterization of six copper(II) complexes of 2-benzoylpyridine benzhydrazone in the form of [Cu(BPB)(2)], [Cu(BPB)Cl].H(2)O, [Cu(BPB)Br], [Cu(2)(BPB)(2)](ClO(4))(2).4H(2)O, [Cu(BPB)N(3)].H(2)O, and [Cu(BPB)NCS].H(2)O.CH(3)OH are reported. The analytical methods used for the characterization of complexes include partial elemental analyses, IR, electronic and EPR spectra, conductivity measurements, magnetic susceptibility measurements and single crystal X-ray diffraction. From the crystal structure, it is clear that the hydrazone adopts the E conformation about the azo bond to attach to the metal through the N(py)-N(azo)-O chelating system. In the EPR spectra of complexes in DMF at 77K four hyperfine quartets in the parallel region could be resolved and a half field signal is observed at 1500 G for complex [Cu(2)(BPB)(2)](ClO(4))(2).4H(2)O in polycrystalline state at 298 K which gives evidence for its binuclear nature indicating a weak interaction between the two Cu(II) ions.
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Affiliation(s)
- Neema Ani Mangalam
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala 682 022, India
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34
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Rosu T, Pahontu E, Pasculescu S, Georgescu R, Stanica N, Curaj A, Popescu A, Leabu M. Synthesis, characterization antibacterial and antiproliferative activity of novel Cu(II) and Pd(II) complexes with 2-hydroxy-8-R-tricyclo[7.3.1.0.(2,7)]tridecane-13-one thiosemicarbazone. Eur J Med Chem 2010; 45:1627-34. [PMID: 20096975 DOI: 10.1016/j.ejmech.2009.12.015] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Revised: 07/29/2009] [Accepted: 12/03/2009] [Indexed: 01/11/2023]
Abstract
Synthesis and biological activity investigation of complex compounds of Cu(II) are challenging issues because of the metal is not a xenobiotic one and the activity of ligands could be modulated by complexation. Complex combinations of Cu(II) and Pd(II) with thiosemicarbazone derivatives of 2-hydroxy-8-R-tricyclo[7.3.1.0.(2,7)]tridecane-13-one (where R=C(3)H(7), C(4)H(3)O) were synthesized. The characterization of the ligands and the newly formed compounds was done by (1)H NMR, (13)C NMR, UV-vis, IR, ESR spectroscopy, elemental analysis, molar electric conductibility and thermal studies. Experiments performed to identify the structures proved that the ligands coordinate to metal ions in different ways - neutral bidentate or mononegative bidentate. Also, if copper(II) acetate, copper(II) nitrate, copper(II) chloride and copper(II) thiocyanate were used, the ligands coordinated in a mononegative bidentate fashion. If copper(II) sulfate was used, the ligands coordinated in a neutral bidentate fashion. The biological activity for the copper(II) synthesized compounds was assessed in terms of antibacterial or antiproliferative activity. The antibacterial activity of the complexes against Staphylococcus aureus var. Oxford 6538, Escherichia coli ATCC 10536, Klebsielle pneumoniae ATCC 100131 and Candida albicans ATCC 10231 strains was studied and compared with that of free ligands. The effect of complex compounds on the proliferation of HeLa cells was tested. For all tested complexes an antiproliferative activity was noted at concentrations higher than 1 microM, but lower than 10 microM. Therefore, complex compounds of copper(II) were synthesized, structurally characterized and tested for biological activity, proving both antibacterial and antiproliferative activity.
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Affiliation(s)
- Tudor Rosu
- Inorganic Chemistry Department, Faculty of Chemistry, University of Bucharest, 23 Dumbrava Rosie Street, 050107 Bucharest, Romania.
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35
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Leovac VM, Češljević VI, Vojinović-Ješić LS, Divjaković V, Jovanović LS, Szécsényi KM, Rodić MV. Transition metal complexes with thiosemicarbazide-based ligands. Part 56. Square-pyramidal complexes of copper(II) with 2-acetylpyridine S-methylisothiosemicarbazone. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.07.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Nguyen HH, Jegathesh JJ, Maia PIDS, Deflon VM, Gust R, Bergemann S, Abram U. Synthesis, Structural Characterization, and Biological Evaluation of Oxorhenium(V) Complexes with a Novel Type of Thiosemicarbazones Derived from N-[N′,N′-Dialkylamino(thiocarbonyl)]benzimidoyl Chlorides. Inorg Chem 2009; 48:9356-64. [PMID: 19736964 DOI: 10.1021/ic901160v] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hung Huy Nguyen
- Department of Chemistry, Hanoi University of Sciences, 19 Le Thanh Tong, Hanoi, Vietnam
| | - Jesudas J. Jegathesh
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Fabeckstrasse 34-36, D-14195 Berlin, Germany
| | - Pedro I. da S. Maia
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780 São Carlos − São Paulo, Brazil
| | - Victor M. Deflon
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780 São Carlos − São Paulo, Brazil
| | - Ronald Gust
- Institute of Pharmacy, Königin-Luise-Strasse 2 and 4, 14195 Berlin, Germany
| | - Silke Bergemann
- Institute of Pharmacy, Königin-Luise-Strasse 2 and 4, 14195 Berlin, Germany
| | - Ulrich Abram
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Fabeckstrasse 34-36, D-14195 Berlin, Germany
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37
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Kowol CR, Trondl R, Heffeter P, Arion VB, Jakupec MA, Roller A, Galanski M, Berger W, Keppler BK. Impact of Metal Coordination on Cytotoxicity of 3-Aminopyridine-2-carboxaldehyde Thiosemicarbazone (Triapine) and Novel Insights into Terminal Dimethylation. J Med Chem 2009; 52:5032-43. [DOI: 10.1021/jm900528d] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christian R. Kowol
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Robert Trondl
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Petra Heffeter
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Vladimir B. Arion
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Michael A. Jakupec
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Alexander Roller
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Markus Galanski
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Walter Berger
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Bernhard K. Keppler
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
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38
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Ferraz KO, Wardell SMSV, Wardell JL, Louro SRW, Beraldo H. Copper(II) complexes with 2-pyridineformamide-derived thiosemicarbazones: spectral studies and toxicity against Artemia salina. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 73:140-145. [PMID: 19286418 DOI: 10.1016/j.saa.2009.02.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Revised: 01/27/2009] [Accepted: 02/06/2009] [Indexed: 05/27/2023]
Abstract
The copper(II) complexes [Cu(H2Am4DH)Cl2] (1), [Cu(H2Am4Me)Cl2] (2), [Cu(H2Am4Et)Cl2] (3) and [Cu(2Am4Ph)Cl] (4) with 2-pyridineformamide thiosemicarbazone (H2Am4DH) and its N(4)-methyl (H2Am4Me), N(4)-ethyl (H2Am4Et) and N(4)-phenyl (H2Am4Ph) derivatives were studied by means of infrared and EPR spectral techniques. The crystal structure of 4 was determined. The studied compounds proved to be toxic to Artemia salina, suggesting that they could present cytotoxic activity against solid tumors. Among the free thiosemicarbazones H2Am4Ph presented higher toxicity than all other compounds, which showed comparable effects. In the case of complexes 2 and 3 toxicity is probably attributable to the complex as an entity or to a synergistic effect involving the thiosemicarbazone and copper. H2Am4Ph and complexes 2 and 3 revealed to be the most promising compounds as potential antineoplasic agents.
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Affiliation(s)
- Karina O Ferraz
- Departamento de Química, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Brazil
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39
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Bernhardt PV, Sharpe PC, Islam M, Lovejoy DB, Kalinowski DS, Richardson DR. Iron chelators of the dipyridylketone thiosemicarbazone class: precomplexation and transmetalation effects on anticancer activity. J Med Chem 2009; 52:407-15. [PMID: 19090766 DOI: 10.1021/jm801012z] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We previously reported a series of di-2-pyridylketone thiosemicarbazone (HDpT) chelators that showed marked and selective antitumor activity (Whitnall, M.; et al. Proc. Natl. Acad. Sci. U.S.A. 2006, 103, 14901-14906). To further understand their biological efficacy, we report the characterization and activity of their Mn(II), Co(III), Ni(II), Cu(II), and Zn(II) complexes. The X-ray crystal structures of four divalent (Mn, Ni, Cu, and Zn) and one trivalent (Fe) complexes are reported. Electrochemistry shows the Fe(III/II) and Cu(II/I) potentials of the complexes may be redox-active within cells. Stability constants were also determined for the Mn(II), Ni(II), Cu(II), and Zn(II) complexes. All divalent complexes underwent transmetalation upon encountering Fe(II), to form low spin ferrous complexes. Importantly, the divalent Mn(II), Ni(II), Cu(II), and Zn(II) complexes of the HDpT analogues are equally active in preventing proliferation as their ligands, suggesting the complexes act as lipophilic vehicles facilitating intracellular delivery of the free ligand upon metal dissociation.
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Affiliation(s)
- Paul V Bernhardt
- Centre for Metals in Biology, School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Qld 4072, Australia.
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40
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Kowol CR, Reisner E, Chiorescu I, Arion VB, Galanski M, Deubel DV, Keppler BK. An Electrochemical Study of Antineoplastic Gallium, Iron and Ruthenium Complexes with Redox Noninnocent α-N-Heterocyclic Chalcogensemicarbazones. Inorg Chem 2008; 47:11032-47. [DOI: 10.1021/ic8013249] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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2-Pyridinoformamide-derived thiosemicarbazones and their iron(III) complexes: Potential antineoplastic activity. Polyhedron 2008. [DOI: 10.1016/j.poly.2007.10.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Kalinowski DS, Yu Y, Sharpe PC, Islam M, Liao YT, Lovejoy DB, Kumar N, Bernhardt PV, Richardson DR. Design, synthesis, and characterization of novel iron chelators: structure-activity relationships of the 2-benzoylpyridine thiosemicarbazone series and their 3-nitrobenzoyl analogues as potent antitumor agents. J Med Chem 2007; 50:3716-29. [PMID: 17602603 DOI: 10.1021/jm070445z] [Citation(s) in RCA: 182] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Previously, we demonstrated that the potent antiproliferative activity of the di-2-pyridylketone thiosemicarbazone (DpT) series of Fe chelators was due to their ability to induce Fe depletion and form redox-active Fe complexes (Richardson, D. R.; et al. J. Med. Chem. 2006, 49, 6510-6521). We now examine the role of aromatic substituents on the antiproliferative and redox activity of novel DpT analogues, namely, the 2-benzoylpyridine thiosemicarbazone (BpT) and 2-(3-nitrobenzoyl)pyridine thiosemicarbazone (NBpT) series. Both series exhibited selective antiproliferative effects, with the majority having greater antineoplastic activity than their DpT homologues. This makes the BpT chelators the most active anticancer agents developed within our laboratory. The BpT series Fe complexes exhibit lower redox potentials than their corresponding DpT and NBpT complexes, highlighting their enhanced redox activity. The increased ability of BpT-Fe complexes to catalyze ascorbate oxidation and benzoate hydroxylation, relative to their DpT and NBpT analogues, suggested that redox cycling plays an important role in their antiproliferative activity.
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Affiliation(s)
- Danuta S Kalinowski
- Iron Metabolism and Chelation Program, Department of Pathology, University of Sydney, Sydney, New South Wales 2006, Australia
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43
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Ruthenium(II) Complexes of Thiosemicarbazones: The First Water-Soluble Complex with pH-Dependent Antiproliferative Activity. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200601196] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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Chikate RC, Padhye SB. Transition metal quinone-thiosemicarbazone complexes 3: Spectroscopic characterizations of spin-mixed iron (III) of naphthoquinone-thiosemicarbazones. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 66:1091-6. [PMID: 16876470 DOI: 10.1016/j.saa.2006.05.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2005] [Revised: 05/16/2006] [Accepted: 05/21/2006] [Indexed: 05/11/2023]
Abstract
An interesting series of iron (III) complexes with naphthoquinone-thiosemicarbazones are synthesized and physico-chemically characterized by elemental analysis, UV-vis, IR, EPR and magnetic susceptibility measurements. They possess a cationic octahedral [FeL2]+ species and a tetrahedral [FeCl4]- anion and exhibit unusual spin-mixed states involving high-spin and low-spin ferric centers as revealed from magnetic behavior with significant amount of exchange interactions mediated by intermolecular associations. The magnetic susceptibility data is fitted with S1=5/2 and S2=1/2 Heisengberg's exchange coupled model; H=-2JS1S2 and the magnetic exchange interactions are found to be of the order of -13.6 cm-1 indicating the moderate coupling between two paramagnetic centers present in different chemical and structural environment. The presence of spin-paired iron (III) cation having dxz2dxz2dxz1 ground state is revealed from the EPR spectra with three prominent peaks while the high-spin tetrahedral iron (III) anion exhibits characteristics g=4 signal whose intensity increases with lowering the temperature suggesting its influence on the magnetic properties of the complex molecule. FTIR measurements indicate tridentate ONS donor systems involving quinone/hydroxyl oxygen, imine/hydrazinic nitrogen and thione/thiol sulfur atoms as binding sites for naphthoquinone-thiosemicarbazones.
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Affiliation(s)
- Rajeev C Chikate
- Department of Chemistry, University of Pune, Pune 411 007, India.
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45
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Rapheal P, Manoj E, Prathapachandra Kurup M. Copper(II) complexes of N(4)-substituted thiosemicarbazones derived from pyridine-2-carbaldehyde: Crystal structure of a binuclear complex. Polyhedron 2007. [DOI: 10.1016/j.poly.2006.09.091] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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46
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Joseph M, Sreekanth A, Suni V, Kurup MRP. Spectral characterization of iron(III) complexes of 2-benzoylpyridine N(4)-substituted thiosemicarbazones. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2006; 64:637-41. [PMID: 16386946 DOI: 10.1016/j.saa.2005.07.067] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2005] [Accepted: 07/29/2005] [Indexed: 05/06/2023]
Abstract
Three iron(III) complexes (1-3) of 2-benzoylpyridine N(4)-phenyl thiosemicarbazone (HL1) and one iron(III) complex (4) of 2-benzoylpyridine N(4)-cyclohexyl thiosemicarbazone (HL2) were synthesized and characterized by means of different physicochemical techniques viz., molar conductivity measurements, magnetic susceptibility studies and electronic, infrared and EPR spectral studies. The analytical data and the molar conductance measurements of the complexes reveal that two molecules of the ligand and the anion are coordinated to the metal atom in all the four complexes. The magnetic moments of the complexes suggest that they are of low spin. From the infrared spectra of the ligands and the complexes it is confirmed that the ligands coordinate to iron(III) as an anion coordinating via the azomethine nitrogen, pyridyl nitrogen, and the thiolate sulphur. The EPR spectra of the complexes in the polycrystalline state at 298 and 110 K and in DMF solution at 110 K were recorded and all the spectra show three g values indicating that these complexes have rhombic distortion. All the iron(III) complexes in DMF solution at 110 K have similar anisotropic spectra with almost the same gav values, indicating that the bonding in all the complexes is similar and is unaffected by the coordination of the anion.
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Affiliation(s)
- Marthakutty Joseph
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, Kerala, India
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