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Maurya MR, Nandi M, Chaudhary PK, Singh S, Avecilla F, Prasad R, Ghosh K. Catalytic, Antifungal, and Antiproliferative Activity Studies of a New Family of Mononuclear [V IVO]/[V VO 2] Complexes. Inorg Chem 2024; 63:714-729. [PMID: 38150362 DOI: 10.1021/acs.inorgchem.3c03665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Ligands derived from 2-(1-phenylhydrazinyl)pyridine and salicylaldehyde (HL1), 3-methoxysalicylaldehyde (HL2), 5-bromosalicylaldehyde (HL3), and 3,5-di-tert-butylsalicylaldehyde (HL4) react with [VIVO(acac)2] in MeOH followed by aerial oxidation to give [VVO2(L1)] (1), [VVO2(L2)] (2), [VVO2(L3)] (3), and [VVO2(L4)] (4). Complex [VIVO(acac)(L1)] (5) is also isolable from [VIVO(acac)2] and HL1 in dry MeOH. Structures of all complexes were confirmed by single-crystal X-ray and spectroscopic studies. They efficiently catalyze benzyl alcohol and its derivatives' oxidation in the presence of H2O2 to their corresponding aldehydes. Under optimized reaction conditions using 1 as a catalyst precursor, conversion of benzyl alcohol follows the order: 4 (93%) > 2 (90%) > 1 (86%) > 3 (84%) ≈ 5 (84%). These complexes were also evaluated for antifungal and antiproliferative activities. Complex 3 with MIC50 = 16 μg/mL, 4 with MIC50 = 12 μg/mL, and 5 with MIC50 = 16 μg/mL are efficient toward planktonic cells of Candida albicans and Candida tropicalis. On Michigan cancer foundation-7 (MCF-7) cells, they show comparable cytotoxic effects and exhibit IC50 in the 27.3-33.5 μg/mL range, and among these, 4 exhibits the highest cytotoxicity. A similar study on human embryonic kidney cells (HEK293) confirms their less toxicity at lower concentrations (4 to 16 μg/mL) compared to MCF-7.
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Affiliation(s)
- Mannar R Maurya
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Monojit Nandi
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Pankaj Kumar Chaudhary
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Sain Singh
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Fernando Avecilla
- Grupo NanoToxGen, Centro Interdisciplinar de Química y Biología (CICA), Departamento de Química, Facultade de Ciencias, Universidade da Coruña, Campus de A Coruña, 15071 A Coruña, Spain
| | - Ramasare Prasad
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Kaushik Ghosh
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
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Li M, Qiu XY, Zheng ZX, Wu YJ. SYNTHESIS, CHARACTERIZATION AND X-RAY CRYSTAL STRUCTURE OF N′-(3,5-DIFLUORO-2- HYDROXYBENZYLIDENE)-4-METHYLBENZOHYDRAZIDE AND ITS OXIDOVANADIUM(V) COMPLEX WITH ANTIBACTERIAL ACTIVITY. J STRUCT CHEM+ 2023. [DOI: 10.1134/s0022476623020154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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3
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Patel N, Patel AK, Travadi M, Jadeja R, Butcher R, Muddassir M, Kumar S, Kapavarapu R. Metal-organic hybrids based on [VO2(L)]− tecton with cations of imidazole and its derivative: Synthesis, single-crystal structures and molecular docking studies. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Abstract
A major problem with patient treatments using anticancer compounds is accompanying bacterial infections, which makes more information on how such compounds impact bacterial growth desirable. In the following study, we investigated the growth effects of an anticancerous non-toxic Schiff base oxidovanadium(V) complex (N-(salicylideneaminato)-N′-(2-hydroxyethyl)ethane-1,2-diamine) coordinated to the 3,5-di-tert-butylcatecholato ligand on a representative bacterium, Mycobacterium smegmatis (M. smeg). We prepared the Schiff base V-complexes as reported previously and selected a few complexes to develop a V-complex series. Biological studies of M. smeg growth inhibition were complemented by spectroscopic studies using UV-Vis spectrophotometry and NMR spectroscopy to determine which complexes were intact under biologically relevant conditions. We specifically chose to examine (1) the growth effects of Schiff base oxidovanadium complexes coordinated to a catechol, (2) the growth effects of respective free catecholates on M. smeg, and (3) to identify complexes where the metal coordination complex was more potent than the ligand alone under biological conditions. Results from these studies showed that the observed effects of Schiff base V-catecholate complex are a combination of catechol properties including toxicity, hydrophobicity, and sterics.
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Gayakwad SV, Shejul DR, Lokhande MN, Bhosale HJ, Wankhede DS. Synthesis, Characterization, Antimicrobial, Antioxidant, Antidiabetic, Anticancer, and Cytotoxic Activities of Mixed Ligand Complexes of Vanadium(IV). RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221040241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Synthesis, characterization and in vitro antidiabetic activity of anionic dioxidovanadium(V) complexes. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Ma X, Qiao B, Lai Y, Geng Y, Le J, Feng E, Han X, Liu M. Intelligent writable material based on a supramolecular self-assembly gel. SOFT MATTER 2021; 17:1463-1467. [PMID: 33544112 DOI: 10.1039/d1sm00012h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A simple dual acylhydrazone-functionalized gelator (G1) has been designed and synthesized, and it was found to form a supramolecular organogel (G1-gel) in a mixed solvent of DMF-H2O. The gelator solution shows brilliant blue light upon mixing with Mg2+; this blue light can be erased by saliva or CO32-. Owing to this characteristic, a smart erasable writable material was prepared.
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Affiliation(s)
- Xinxian Ma
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Bo Qiao
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Yingshan Lai
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Yutao Geng
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Jinlong Le
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Enke Feng
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Xinning Han
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Minghua Liu
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. China.
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Misinterpretations in Evaluating Interactions of Vanadium Complexes with Proteins and Other Biological Targets. INORGANICS 2021. [DOI: 10.3390/inorganics9020017] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In aqueous media, VIV- and VV-ions and compounds undergo chemical changes such as hydrolysis, ligand exchange and redox reactions that depend on pH and concentration of the vanadium species, and on the nature of the several components present. In particular, the behaviour of vanadium compounds in biological fluids depends on their environment and on concentration of the many potential ligands present. However, when reporting the biological action of a particular complex, often the possibility of chemical changes occurring has been neglected, and the modifications of the complex added are not taken into account. In this work, we highlight that as soon as most vanadium(IV) and vanadium(V) compounds are dissolved in a biological media, they undergo several types of chemical transformations, and these changes are particularly extensive at the low concentrations normally used in biological experiments. We also emphasize that in case of a biochemical interaction or effect, to determine binding constants or the active species and/or propose mechanisms of action, it is essential to evaluate its speciation in the media where it is acting. This is because the vanadium complex no longer exists in its initial form.
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Therapeutic potential of vanadium complexes with 1,10-phenanthroline ligands, quo vadis? Fate of complexes in cell media and cancer cells. J Inorg Biochem 2021; 217:111350. [PMID: 33477088 DOI: 10.1016/j.jinorgbio.2020.111350] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/15/2020] [Accepted: 12/21/2020] [Indexed: 12/14/2022]
Abstract
VIVO-complexes formulated as [VIVO(OSO3)(phen)2] (1) (phen = 1,10-phenanthroline), [VIVO(OSO3)(Me2phen)2] (2) (Me2phen = 4,7-dimethyl-1,10-phenanthroline) and [VIVO(OSO3)(amphen)2] (3) (amphen = 5-amino-1,10-phenanthroline) were prepared and stability in cell incubation media evaluated. Their cytotoxicity was determined against the A2780 (ovarian), MCF7 (breast) and PC3 (prostate) human cancer cells at different incubation times. While at 3 and 24 h the cytotoxicity differs for complexes and corresponding free ligands, at 72 h incubation all compounds are equally active presenting low IC50 values. Upon incubation of A2780 cells with 1-3, cellular distribution of vanadium in cytosol, membranes, nucleus and cytoskeleton, indicate that the uptake of V is low, particularly for 1, and that the uptake pattern depends on the ligand. Nuclear microscopic techniques are used for imaging and elemental quantification in whole PC3 cells incubated with 1. Once complexes are added to cell culture media, they decompose, and with time most VIV oxidizes to VV-species. Modeling of speciation when [VIVO(OSO3)(phen)2] (1) is added to cell media is presented. At lower concentrations of 1, VIVO- and phen-containing species are mainly bound to bovine serum albumin, while at higher concentrations [VIVO(phen)n]2+-complexes become relevant, being predicted that the species taken up and mechanisms of action operating depend on the total concentration of complex. This study emphasizes that for these VIVO-systems, and probably for many others involving oxidovanadium or other labile metal complexes, it is not possible to identify active species or propose mechanisms of cytotoxic action without evaluating speciation occurring in cell media.
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Kumar A, Kurbah SD, Syiemlieh I, Dhanpat SA, Borthakur R, Lal RA. Synthesis, characterization, reactivity, and catalytic studies of heterobimetallic vanadium(V) complexes containing hydrazone ligands. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Janas Z, Jezierska J, Ozarowski A, Bieńko A, Lis T, Jezierski A, Krawczyk M. Investigation of vanadium(III) and vanadium(IV) compounds supported by the linear diaminebis(phenolate) ligands: correlation between structures and magnetic properties. Dalton Trans 2021; 50:5184-5196. [PMID: 33881036 DOI: 10.1039/d0dt04302h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A family of oxidovanadium(iv) compounds containing linear diaminebis(phenolate (salans) L1-5 ligands (L1 = [MeNCH2CH2NMe(CH2-4-CMe2CH2CMe3-C6H3O)2]2-; L2 = [MeNCH2CH2NMe(CH2-4-CH3-C6H3O)2]2-; L3 = [MeNCH2CH2NMe(CH2-4-Cl-C6H3O)2]2-; L4 = {MeNCH2CH2NMe[CH2-4,6-(CH3)2-C6H2O]2}2-; and L5 = {MeNCH2CH2NMe[CH2-4,6-(Br)2-C6H2O]2}2-) and non-oxidovanadium(iii) with L2,4 and acac ligands has been prepared and characterized by chemical and physical techniques. Reactions of [VO(acac)2] with ligand precursors H2L2,4 in toluene or hexane afforded vanadium(iii) compounds [V(L-κ4ONNO)(acac)] (1, L2; 2, L4), while the use of acetonitrile or ethanol led to the formation of dimeric oxidovanadium(iv) [(VO)2(μ-L-κ4ONNO)2] (3, L1; 4, L2; 5, L3) and monomeric [VO(L-κ4ONNO)] (6, L4, 7, L5) compounds. As shown by X-ray crystallography, compounds 1 and 2 are monomeric, in which the chelating ligands afford octahedral cis-α geometry at the vanadium center. In the dimeric structures of 3-5, the six-coordinate vanadium centers are bridged via two oxygen atoms of the L1-3 ligands while the L4,5 ligands generate square pyramidal structures of the monomeric 6 and 7 compounds. HFEPR studies allowed the determination of the spin Hamiltonian parameters of the S = 1 spin state of the monomeric V(iii) and dimeric V(iv), and S = ½ in monomeric V(iv) compounds. Magnetic measurements of 3-5 indicated weak ferromagnetic metal-metal exchange interactions. A reaction course for the deoxygenation and reduction of vanadyl-salan compounds is proposed.
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Affiliation(s)
- Zofia Janas
- Faculty of Chemistry, University of Wrocław, 14, F. Joliot-Curie, 50-383 Wrocław, Poland.
| | - Julia Jezierska
- Faculty of Chemistry, University of Wrocław, 14, F. Joliot-Curie, 50-383 Wrocław, Poland.
| | - Andrew Ozarowski
- National High Magnetic Field Laboratory, Florida State University, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310, USA.
| | - Alina Bieńko
- Faculty of Chemistry, University of Wrocław, 14, F. Joliot-Curie, 50-383 Wrocław, Poland.
| | - Tadeusz Lis
- Faculty of Chemistry, University of Wrocław, 14, F. Joliot-Curie, 50-383 Wrocław, Poland.
| | - Adam Jezierski
- Faculty of Chemistry, University of Wrocław, 14, F. Joliot-Curie, 50-383 Wrocław, Poland.
| | - Marta Krawczyk
- Faculty of Pharmacy, Wrocław Medical University, 211 Borowska, 50-556 Wrocław, Poland
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12
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Banerjee A, Dash SP, Mohanty M, Sahu G, Sciortino G, Garribba E, Carvalho MFNN, Marques F, Costa Pessoa J, Kaminsky W, Brzezinski K, Dinda R. New V IV, V IVO, V VO, and V VO 2 Systems: Exploring their Interconversion in Solution, Protein Interactions, and Cytotoxicity. Inorg Chem 2020; 59:14042-14057. [PMID: 32914971 DOI: 10.1021/acs.inorgchem.0c01837] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The synthesis and characterization of one oxidoethoxidovanadium(V) [VVO(L1)(OEt)] (1) and two nonoxidovanadium(IV) complexes, [VIV(L2-3)2] (2 and 3), with aroylhydrazone ligands incorporating naphthalene moieties, are reported. The synthesized oxido and nonoxido vanadium complexes are characterized by various physicochemical techniques, and their molecular structures are solved by single crystal X-ray diffraction (SC-XRD). This revealed that in 1 the geometry around the vanadium atom corresponds to a distorted square pyramid, with a O4N coordination sphere, whereas that of the two nonoxido VIV complexes 2 and 3 corresponds to a distorted trigonal prismatic arrangement with a O4N2 coordination sphere around each "bare" vanadium center. In aqueous solution, the VVO moiety of 1 undergoes a change to VVO2 species, yielding [VVO2(L1)]- (1'), while the nonoxido VIV-compounds 2 and 3 are partly converted into their corresponding VIVO complexes, [VIVO(L2-3)(H2O)] (2' and 3'). Interaction of these VVO2, VIVO, and VIV systems with two model proteins, ubiquitin (Ub) and lysozyme (Lyz), is investigated through docking approaches, which suggest the potential binding sites: the interaction is covalent for species 2' and 3', with the binding to Glu16, Glu18, and Asp21 for Ub, and His15 for Lyz, and it is noncovalent for species 1', 2, and 3, with the surface residues of the proteins. The ligand precursors and complexes are also evaluated for their in vitro antiproliferative activity against ovarian (A2780) and prostate (PC3) human cancer cells and in normal fibroblasts (V79) to check the selectivity of the compounds for cancer cells.
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Affiliation(s)
- Atanu Banerjee
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Subhashree P Dash
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Monalisa Mohanty
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Gurunath Sahu
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Giuseppe Sciortino
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, I-07100 Sassari, Italy.,Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallés, Barcelona, Spain
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, I-07100 Sassari, Italy
| | - M Fernanda N N Carvalho
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - João Costa Pessoa
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Werner Kaminsky
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States
| | - Krzysztof Brzezinski
- Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245, Bialystok, Poland
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
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Maurya A, Mahato AK, Chaudhary N, Kesharwani N, Kachhap P, Mishra VK, Haldar C. Synthesis and characterization of dimeric μ‐oxidovanadium complexes as the functional model of vanadium bromoperoxidase. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5508] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Abhishek Maurya
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
| | - Arun Kumar Mahato
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
| | - Nikita Chaudhary
- Department of Chemistry and Polymer ScienceStellenbosch University Matieland 7602 Stellenbosch South Africa
| | - Neha Kesharwani
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
| | - Payal Kachhap
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
| | - Vivek Kumar Mishra
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
| | - Chanchal Haldar
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
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14
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Topić E, Pisk J, Agustin D, Jendrlin M, Cvijanović D, Vrdoljak V, Rubčić M. Discrete and polymeric ensembles based on dinuclear molybdenum( vi) building blocks with adaptive carbohydrazide ligands: from the design to catalytic epoxidation. NEW J CHEM 2020. [DOI: 10.1039/d0nj01045f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Discrete and polymeric ensembles based on dimolybdenum(vi) units with adaptive carbohydrazide ligands are described. The polymeric complexes are efficient catalysts for cyclooctene epoxidation under eco-friendly conditions.
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Affiliation(s)
- Edi Topić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | - Jana Pisk
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | | | - Martin Jendrlin
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | - Danijela Cvijanović
- University of Zagreb
- School of Medicine
- Department of Chemistry and Biochemistry
- Croatia
| | - Višnja Vrdoljak
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | - Mirta Rubčić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
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Maurya MR, Tomar R, Avecilla F, Ribeiro N, Carvalho MFNN, Kuznetsov ML, Correia I, Pessoa JC. Trinuclear vanadium(iv) and vanadium(v) complexes derived from 2,4,6-triacetylphloroglucinol and study of their peroxidase mimicking activity. Dalton Trans 2020; 49:2589-2609. [DOI: 10.1039/c9dt04415a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solid state and solution studies of trinuclear VIVO- and VVO2-complexes and their peroxidase mimicking activity, through oxidation of dopamine to aminochrome, are reported.
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Affiliation(s)
- Mannar R. Maurya
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
| | - Reshu Tomar
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
| | - Fernando Avecilla
- Grupo Xenomar
- Centro de Investigacións Científicas Avanzadas (CICA)
- Departamento de Química
- Facultade de Ciencias
- Universidade da Coruña
| | - Nádia Ribeiro
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
| | - M. Fernanda N. N. Carvalho
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
| | - Maxim L. Kuznetsov
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
| | - Isabel Correia
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
| | - João Costa Pessoa
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
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Supramolecular structures in oxovanadium(IV) compounds with pyrid-2-one and pyrid-4-one ligands. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Syiemlieh I, Asthana M, Kurbah SD, Lal RA. Synthesis, crystal structure and reactivity of homobimetallic vanadium(V) complexes derived from oxaloyldihydrazone ligands. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.05.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Maurya MR, Mengesha B, Maurya SK, Avecilla F. Synthesis, characterization and catalytic activity of dioxidouranium(VI) complexes of ONNO tetradentate Mannich bases. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.04.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Patel N, Prajapati A, Jadeja R, Patel R, Patel S, Gupta V, Tripathi I, Dwivedi N. Model investigations for vanadium-protein interactions: Synthesis, characterization and antidiabetic properties. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.04.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Syiemlieh I, Asthana M, Lal RA. Reactivity and Catalytic Activity of Homobimetallic Vanadium(V) Complex Derived from Bis(5‐chlorosalicylaldehyde)oxaloyldihydrazone Ligand. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4984] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ibanphylla Syiemlieh
- Department of Chemistry, Centre for Advanced StudiesNorth‐Eastern Hill University Shillong 793022 India
| | | | - Ram A. Lal
- Department of Chemistry, Centre for Advanced StudiesNorth‐Eastern Hill University Shillong 793022 India
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21
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Sabuzi F, Pomarico G, Floris B, Valentini F, Galloni P, Conte V. Sustainable bromination of organic compounds: A critical review. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.01.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Probing the synthetic protocols and coordination chemistry of oxido-, dioxido-, oxidoperoxido-vanadium and related complexes of higher nuclearity. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.12.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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23
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Dioxidomolybdenum(VI) and dioxidouranium(VI) complexes as functional mimic of haloperoxidases catalytic activity in presence of H2O2–KBr–HClO4. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.11.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Biswal D, Pramanik NR, Drew MGB, Jangra N, Maurya MR, Kundu M, Sil PC, Chakrabarti S. Synthesis, crystal structure, DFT calculations, protein interaction, anticancer potential and bromoperoxidase mimicking activity of oxidoalkoxidovanadium( v) complexes. NEW J CHEM 2019; 43:17783-17800. [DOI: 10.1039/c9nj02471a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Intriguing structure–activity relationships (SARs) indicating an apparent dependence of anticancer and haloperoxidase activities on the carbon chain length of the alkoxo group.
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Affiliation(s)
- Debanjana Biswal
- Department of Chemistry
- University College of Science
- Kolkata 700009
- India
| | | | | | - Nancy Jangra
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
| | - Mannar R. Maurya
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
| | - Mousumi Kundu
- Division of Molecular Medicine
- Bose Institute
- Kolkata 700054
- India
| | - Parames C. Sil
- Division of Molecular Medicine
- Bose Institute
- Kolkata 700054
- India
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25
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Maurya MR, Sarkar B, Kumar A, Ribeiro N, Miliute A, Pessoa JC. New thiosemicarbazide and dithiocarbazate based oxidovanadium(iv) and dioxidovanadium(v) complexes. Reactivity and catalytic potential. NEW J CHEM 2019. [DOI: 10.1039/c9nj01486a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The new thiosemicarbazide and dithiocarbazate based vanadium complexes show remarkable catalytic potential for oxidation of alcohols and simple arenes.
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Affiliation(s)
- Mannar R. Maurya
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247 667
- India
| | - Bithika Sarkar
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247 667
- India
| | - Amit Kumar
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade Técnica de Lisboa
- 1049-001 Lisboa
| | - Nádia Ribeiro
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade Técnica de Lisboa
- 1049-001 Lisboa
| | - Aistè Miliute
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade Técnica de Lisboa
- 1049-001 Lisboa
| | - João Costa Pessoa
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade Técnica de Lisboa
- 1049-001 Lisboa
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26
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Kongot M, Dohare N, Reddy DS, Pereira N, Patel R, Subramanian M, Kumar A. In vitro apoptosis-induction, antiproliferative and BSA binding studies of a oxidovanadium(V) complex. J Trace Elem Med Biol 2019; 51:176-190. [PMID: 30466929 DOI: 10.1016/j.jtemb.2018.10.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/06/2018] [Accepted: 10/19/2018] [Indexed: 12/15/2022]
Abstract
In our ongoing efforts to develop novel trace metal complexes with therapeutically interesting properties, a neutral mono nuclear oxidomethoxidovanadium(V) complex, [VVO(OCH3)(hpdbal-sbdt)] (1) and a μ-O bridged dinuclear oxidovanadium(V) complex, [{VVO(hpdbal-sbdt)}2μ-O] (2) [H2hpdbal-sbdt (I) is a tridentate and dibasic ONS2- donor ligand obtained through the Schiff base reaction of 2-hydroxy-5-(phenyldiazenyl)benzaldehyde (Hhpdbal) and S-benzyldithiocarbazate (Hsbdt)] have been synthesized and characterized by various analytical techniques such as TGA, EDS, ATR-IR, UV-Vis, CV, 1H NMR, 13C NMR and 51V NMR. Single-crystal X-ray diffraction analysis of 1 confirms the coordination of phenolate oxygen, imine nitrogen and thioenolate sulfur of the ligand to the vanadium center with a distorted tetragonal-pyramidal geometry. The compound 2 triggered apoptotic and reproductive death of the cancer cells in vitro with 76% and 62% growth inhibition of human breast adenocarcinoma (MCF-7) and human lung carcinoma cells (A549) respectively. The compound 2 was found to be sufficiently stable over a wide window of physiological pH. The complex 2 was studied further for its interaction with a drug carrier protein BSA with the aid of spectroscopic techniques viz. fluorescence, temperature controlled UV-vis and deconvoluted IR techniques.
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Affiliation(s)
- Manasa Kongot
- Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Jakkasandra Post, Bengaluru, 562112, Karnataka, India
| | - Neeraj Dohare
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India; Department of Biochemistry, Daulat Ram College, University of Delhi, New Delhi, 110007, India
| | - Dinesh S Reddy
- Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Jakkasandra Post, Bengaluru, 562112, Karnataka, India
| | - Neha Pereira
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
| | - Mahesh Subramanian
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Amit Kumar
- Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Jakkasandra Post, Bengaluru, 562112, Karnataka, India.
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27
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Kurbah SD, Asthana M, Syiemlieh I, Lywait AA, Longchar M, Lal R. New dioxido-vanadium(V) complexes containing hydrazone ligands: Syntheses, crystal structure and their catalytic application toward C H bond functionalization. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.08.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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28
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Langeslay RR, Kaphan DM, Marshall CL, Stair PC, Sattelberger AP, Delferro M. Catalytic Applications of Vanadium: A Mechanistic Perspective. Chem Rev 2018; 119:2128-2191. [PMID: 30296048 DOI: 10.1021/acs.chemrev.8b00245] [Citation(s) in RCA: 206] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The chemistry of vanadium has seen remarkable activity in the past 50 years. In the present review, reactions catalyzed by homogeneous and supported vanadium complexes from 2008 to 2018 are summarized and discussed. Particular attention is given to mechanistic and kinetics studies of vanadium-catalyzed reactions including oxidations of alkanes, alkenes, arenes, alcohols, aldehydes, ketones, and sulfur species, as well as oxidative C-C and C-O bond cleavage, carbon-carbon bond formation, deoxydehydration, haloperoxidase, cyanation, hydrogenation, dehydrogenation, ring-opening metathesis polymerization, and oxo/imido heterometathesis. Additionally, insights into heterogeneous vanadium catalysis are provided when parallels can be drawn from the homogeneous literature.
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Affiliation(s)
- Ryan R Langeslay
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - David M Kaphan
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Christopher L Marshall
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Peter C Stair
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States.,Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Alfred P Sattelberger
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Massimiliano Delferro
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
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29
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Kongot M, Dohare N, Singh V, Reddy DS, Singhal NK, Patel R, Kumar A. A novel biocompatible Ni II tethered moiety as a glucose uptake agent and a hit against methicillin-resistant Staphylococcus aureus. Eur J Pharm Sci 2018; 123:335-349. [PMID: 29981891 DOI: 10.1016/j.ejps.2018.07.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/31/2018] [Accepted: 07/03/2018] [Indexed: 10/28/2022]
Abstract
In the efforts to develop a biocompatible transition metal complex as a drug alike for some of the prevailing non-communicable diseases (NCDs) and communicable diseases (CDs), a novel binuclear NiII compound [{NiII(hpdbal-sbdt)}2] (2) has been synthesized by the reaction of Ni(OAc)2.4H2O and H2hpdbal-sbdt (1) [1 is a dibasic tridentate ONS2- donor Schiff base ligand obtained by the condensation of 2-hydroxy-5-(phenyldiazenyl)benzaldehyde (Hhpdbal) and S-benzyldithiocarbazate (Hsbdt)]. Both ligand 1 and compound 2 were structurally characterized in the solid and solution state using various spectroscopic techniques like ATIR, 1H NMR, 13C NMR, TGA, FESEM, EDS and CHNS analysis. The antidiabetic activity of H2hpdbal-sbdt (1) and [{NiII(hpdbal-sbdt)}2] (2) were assessed using 2-NBDG uptake assay. The assay results showed 85% and 95% of fluorescent glucose uptake by insulin resistant HePG2 cells treated with compounds 1 and 2 respectively. The 2-NBDG uptake by the cells treated with the compound 2 was observed to be comparable to the standard antidiabetic drug metformin. Compounds 1 and 2 were also tested against five bacterial and two fungi strains in order to evaluate pathogen killing activity. Compound 2 showed significant inhibitory action towards the methicillin-resistant Staphylococcus aureus (MRSA) strain with an MIC value of 2 μg/mL whereas the ligand 1 was found to be inactive. Furthermore, the interactive nature of compound 2 with a model serum carrier protein bovine serum albumin (BSA) was studied using a multi-spectroscopic approach which provided an insight into the nature and extent of binding, conformational changes and the quenching of amino acid residues of the protein.
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Affiliation(s)
- Manasa Kongot
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bengaluru 562112, Karnataka, India
| | - Neeraj Dohare
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
| | | | - Dinesh S Reddy
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bengaluru 562112, Karnataka, India
| | | | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
| | - Amit Kumar
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bengaluru 562112, Karnataka, India.
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30
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Patra D, Paul S, Sepay N, Kundu R, Ghosh T. Structure-activity relationship on DNA binding and anticancer activities of a family of mixed-ligand oxidovanadium(V) hydrazone complexes. J Biomol Struct Dyn 2017; 36:4143-4155. [DOI: 10.1080/07391102.2017.1409652] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Debashis Patra
- Department of Chemistry, Ramakrishna Mission Vivekananda Centenary College, Rahara, Kolkata 700118, India
| | - Subhabrata Paul
- Department of Botany, University of Calcutta, 35 Ballyguange Circular Road, Kolkata 700019, India
| | - Nayim Sepay
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Rita Kundu
- Department of Botany, University of Calcutta, 35 Ballyguange Circular Road, Kolkata 700019, India
| | - Tapas Ghosh
- Department of Chemistry, Ramakrishna Mission Vivekananda Centenary College, Rahara, Kolkata 700118, India
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31
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Ma X, Liu S, Zhang Z, Niu Y, Wu J. A novel thermo-responsive supramolecular organogel based on dual acylhydrazone: fluorescent detection for Al 3+ ions. SOFT MATTER 2017; 13:8882-8885. [PMID: 29167852 DOI: 10.1039/c7sm02141k] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new dual acylhydrazone-functionalized gelator (L) has been synthesized, which behaves as a thermal-responsive supramolecular organogel (L-gel) in DMSO. This L-gel exhibits very weak fluorescence based on the photoinduced electron transfer (PET) mechanism. The L-gel can recognize Al3+ and assemble into an enhanced blue-light-emitting supramolecular metallogel (Al@gel).
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Affiliation(s)
- Xinxian Ma
- School of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
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32
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Siqueira JD, Menegatti AC, Terenzi H, Pereira MB, Roman D, Rosso EF, Piquini PC, Iglesias BA, Back DF. Synthesis, characterization and phosphatase inhibitory activity of dioxidovanadium(V) complexes with Schiff base ligands derived from pyridoxal and resorcinol. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.04.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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33
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Maurya MR, Uprety B, Avecilla F, Adão P, Kuznetsov ML, Costa Pessoa J. Solution Behaviour and Catalytic Potential towards Oxidation of Dopamine by Oxidovanadium(V) Complexes of Tripodal Tetradentate Ligands. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700342] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Mannar R. Maurya
- Department of Chemistry; Indian Institute of Technology Roorkee; 247667 Roorkee India
| | - Bhawna Uprety
- Department of Chemistry; Indian Institute of Technology Roorkee; 247667 Roorkee India
| | - Fernando Avecilla
- Departamento de Química Fundamental; Universidade da Coruña; Campus de A Zapateira 15071 A Coruña Spain
| | - Pedro Adão
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade Lisboa; 1049-001 Lisboa Portugal
| | - Maxim L. Kuznetsov
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade Lisboa; 1049-001 Lisboa Portugal
| | - J. Costa Pessoa
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade Lisboa; 1049-001 Lisboa Portugal
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34
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Hong XL, Liu LJ, Lu WG, Wang XB. A vanadium(V) terpyridine complex: synthesis, characterization, cytotoxicity in vitro and induction of apoptosis in cancer cells. TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0150-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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35
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36
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Hong XL, Zeng MH, Liu LJ, Ye XL, Yi DS. Synthesis, characterization and in vitro antitumor behavior of a vanadium(V) complex with 4′-(3-methoxyphenyl)-2,2′:6′2″-terpyridine. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1290800] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xian-Lan Hong
- Department of Chemistry, Shaoguan University, Shaoguan, Guangdong, PR China
| | - Mao-Hua Zeng
- Department of Chemistry, Shaoguan University, Shaoguan, Guangdong, PR China
| | - Li-Juan Liu
- Department of Chemistry, Shaoguan University, Shaoguan, Guangdong, PR China
| | - Xiu-Li Ye
- Department of Chemistry, Shaoguan University, Shaoguan, Guangdong, PR China
| | - Dao-Sheng Yi
- Yingdong College of Life Sciences, Shaoguan University, Shaoguan, Guangdong, PR China
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37
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Scalese G, Correia I, Benítez J, Rostán S, Marques F, Mendes F, Matos AP, Costa Pessoa J, Gambino D. Evaluation of cellular uptake, cytotoxicity and cellular ultrastructural effects of heteroleptic oxidovanadium(IV) complexes of salicylaldimines and polypyridyl ligands. J Inorg Biochem 2016; 166:162-172. [PMID: 27865131 DOI: 10.1016/j.jinorgbio.2016.11.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 10/13/2016] [Accepted: 11/03/2016] [Indexed: 12/13/2022]
Abstract
Searching for prospective vanadium-based drugs for cancer treatment, a new series of structurally related [VIVO(L-2H)(NN)] compounds (1-8) was developed. They include a double deprotonated salicylaldimine Schiff base ligand (L-2H) and different NN-polypyridyl co-ligands having DNA intercalating capacity. Compounds were characterized in solid state and in solution. EPR spectroscopy suggests that the NN ligands act as bidentate and bind through both nitrogen donor atoms in an axial-equatorial mode. The cytotoxicity was evaluated in human tumoral cells (ovarian A2780, breast MCF7, prostate PC3). The cytotoxic activity was dependent on type of cell and incubation time. At 24h PC3 cells presented low sensitivity, but at 72h all complexes showed high cytotoxic activity in all cells. Human kidney HEK293 and ovarian cisplatin resistant A2780cisR cells were also included to evaluate selectivity towards cancer cells and potency to overcome cisplatin resistance, respectively. Most complexes showed no detectable interaction with plasmid DNA, except 2 and 7 which depicted low ability to induce single strand breaks in supercoiled DNA. Based on the overall cytotoxic profile, complexes with 2,2´-bipyridine and 1,10-phenanthroline ligands (1 and 2) were selected for further studies, which consisted on cellular distribution and ultrastructural analyses. In the A2780 cells both depicted different distribution profiles; the former accumulates mostly at the membrane and the latter in the cytoskeleton. Morphology of treated cells showed nuclear atypia and membrane alterations, more severe for 1. Complexes induce different cell death pathways, predominantly necrosis for 1 and apoptosis for 2. Complexes alternative mode of cell death motivates the possibility for further developments.
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Affiliation(s)
- Gonzalo Scalese
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Isabel Correia
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av Rovisco Pais, 1049-001, Lisboa, Portugal
| | - Julio Benítez
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Santiago Rostán
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066, Bobadela LRS, Portugal
| | - Filipa Mendes
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066, Bobadela LRS, Portugal
| | - António Pedro Matos
- Centro de Investigação Interdisciplinar Egas Moniz, Campus Universitário, Quinta da Granja, Monte de Caparica, Portugal
| | - João Costa Pessoa
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av Rovisco Pais, 1049-001, Lisboa, Portugal.
| | - Dinorah Gambino
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800, Montevideo, Uruguay.
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38
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Dash SP, Roy S, Mohanty M, Carvalho MFNN, Kuznetsov ML, Pessoa JC, Kumar A, Patil YP, Crochet A, Dinda R. Versatile Reactivity and Theoretical Evaluation of Mono- and Dinuclear Oxidovanadium(V) Compounds of Aroylazines: Electrogeneration of Mixed-Valence Divanadium(IV,V) Complexes. Inorg Chem 2016; 55:8407-21. [DOI: 10.1021/acs.inorgchem.6b01001] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Subhashree P. Dash
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
- Department of Chemistry, Indira Gandhi Institute of Technology, Sarang, Parjang, Dhenkanal 759146, India
| | - Satabdi Roy
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Monalisa Mohanty
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - M. Fernanda N. N. Carvalho
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Maxim L. Kuznetsov
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - João Costa Pessoa
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Amit Kumar
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
- Centre for Nano
and Material Sciences, Jain University, Jain Global Campus, Jakkasandra
Post, Bangalore 562112, India
| | - Yogesh P. Patil
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Aurélien Crochet
- Department of Chemistry, Fribourg Center for Nanomaterials, University of Fribourg, CH-1700 Fribourg, Switzerland
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
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39
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Wu X, Peters BJ, Rithner CD, Crans DC. Multinuclear NMR studies of aqueous vanadium–HEDTA complexes. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Han ZQ, Han S, Wang Y. Synthesis, crystal structure, and insulin-like activity of dimeric vanadium complex derived from 4-bromo- N'-(2-hydroxy-5-methoxybenzylidene)benzohydrazide. INORG NANO-MET CHEM 2016. [DOI: 10.1080/15533174.2016.1149734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Zhen-Quan Han
- Applied Technical College, Qiqihar University, Qiqihar, P. R. China
| | - Shuang Han
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, P. R. China
| | - Yuan Wang
- Qiqihar Environmental Monitoring Central Station, Qiqihar, P. R. China
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41
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Jarczyk-Jedryka A, Filapek M, Malecki G, Kula S, Janeczek H, Boharewicz B, Iwan A, Schab-Balcerzak E. Symmetrical N-acylsubstituted dihydrazones containing bithiophene core--Photophysical, electrochemical and thermal characterization. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 159:169-176. [PMID: 26845584 DOI: 10.1016/j.saa.2016.01.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 07/09/2015] [Accepted: 01/23/2016] [Indexed: 06/05/2023]
Abstract
Four symmetrical N-acylsubstituted dihydrazones containing bithiophene core were synthesized from condensation of 2,2'-bithiophene-5,5'-dicarboxyaldehyde with benzoic, isonicotinoyl, 2-thiophenic and 2-furoic hydrazide. The obtained compounds were characterized through the data from (1)H nuclear magnetic resonance spectroscopy (NMR), infrared spectroscopy (IR), elemental analysis, UV-vis absorption spectroscopy, photoluminescence (PL), cyclic voltammetry (CV) and differential pulse voltammetry (DPV) measurements. Additionally, the electronic properties including orbital energies and resulting energy gaps were calculated by density functional theory (DFT). Their thermal behavior was investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). They were thermal sable up to 320°C. The prepared N-acylsubstituted dihydrazones emitted light with λ(em) in the range of 499-530 nm in solution, whereas, in solid state as blend with PMMA blue emission was observed. They undergo quasi-reversible and irreversible electrochemical reduction and oxidation processes, respectively. Additionally, the selected compounds were tested preliminary as component of active layer in organic photovoltaic cells. The highest value of power conversion efficiency, equal to 1.68% under simulated 100 mW/cm(2) AM 1.5G irradiation was found for device with the architecture ITO/PEDOT:PSS/P3HT:PCBM:FBTH (1:2:2)/Al.
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Affiliation(s)
- Anna Jarczyk-Jedryka
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
| | - Michal Filapek
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
| | - Grzegorz Malecki
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
| | - Slawomir Kula
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland
| | - Bartosz Boharewicz
- Electrotechnical Institute, Division of Electrotechnology and Materials Science, 55/61 M. Sklodowskiej-Curie Str., 50-369 Wroclaw, Poland
| | - Agnieszka Iwan
- Electrotechnical Institute, Division of Electrotechnology and Materials Science, 55/61 M. Sklodowskiej-Curie Str., 50-369 Wroclaw, Poland
| | - Ewa Schab-Balcerzak
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland; Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland.
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Maurya MR, Sarkar B, Avecilla F, Tariq S, Azam A, Correia I. Synthesis, Characterization, Reactivity, Catalytic Activity, and Antiamoebic Activity of Vanadium(V) Complexes of ICL670 (Deferasirox) and a Related Ligand. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501336] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Abstract
Vanadium is omnipresent in trace amounts in the environment, in food and also in the human body, where it might serve as a regulator for phosphate-dependent proteins. Potential vanadium-based formulations--inorganic and coordination compounds with organic ligands--commonly underlie speciation in the body, that is, they are converted to vanadate(V), oxidovanadium(IV) and to complexes with the body's own ligand systems. Vanadium compounds have been shown to be potentially effective against diabetes Type 2, malign tumors including cancer, endemic tropical diseases (such as trypanosomiasis, leishmaniasis and amoebiasis), bacterial infections (tuberculosis and pneumonia) and HIV infections. Furthermore, vanadium drugs can be operative in cardio- and neuro-protection. So far, vanadium compounds have not yet been approved as pharmaceuticals for clinical use.
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Dash SP, Majumder S, Banerjee A, Carvalho MFNN, Adão P, Pessoa JC, Brzezinski K, Garribba E, Reuter H, Dinda R. Chemistry of Monomeric and Dinuclear Non-Oxido Vanadium(IV) and Oxidovanadium(V) Aroylazine Complexes: Exploring Solution Behavior. Inorg Chem 2016; 55:1165-82. [PMID: 26789655 DOI: 10.1021/acs.inorgchem.5b02346] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A series of mononuclear non-oxido vanadium(IV) [V(IV)(L(1-4))2] (1-4), oxidoethoxido vanadium(V) [V(V)O(L(1-4))(OEt)] (5-8), and dinuclear μ-oxidodioxidodivanadium(V) [V(V)2O3(L(1))2] (9) complexes with tridentate aroylazine ligands are reported [H2L(1) = 2-furoylazine of 2-hydroxy-1-acetonaphthone, H2L(2) = 2-thiophenoylazine of 2-hydroxy-1-acetonaphthone, H2L(3) = 1-naphthoylazine of 2-hydroxy-1-acetonaphthone, H2L(4) = 3-hydroxy-2-naphthoylazine of 2-hydroxy-1-acetonaphthone]. The complexes are characterized by elemental analysis, by various spectroscopic techniques, and by single-crystal X-ray diffraction (for 2, 3, 5, 6, 8, and 9). The non-oxido V(IV) complexes (1-4) are quite stable in open air as well as in solution, and DFT calculations allow predicting EPR and UV-vis spectra and the electronic structure. The solution behavior of the [V(V)O(L(1-4))(OEt)] compounds (5-8) is studied confirming the formation of at least two different types of V(V) species in solution, monomeric corresponding to 5-8, and μ-oxidodioxidodivanadium [V(V)2O3(L(1-4))2] compounds. The μ-oxidodioxidodivanadium compound [V(V)2O3(L(1))2] (9), generated from the corresponding mononuclear complex [V(V)O(L(1))(OEt)] (5), is characterized in solution and in the solid state. The single-crystal X-ray diffraction analyses of the non-oxido vanadium(IV) compounds (2 and 3) show a N2O4 binding set and a trigonal prismatic geometry, and those of the V(V)O complexes 5, 6, and 8 and the μ-oxidodioxidodivanadium(V) (9) reveal that the metal center is in a distorted square pyramidal geometry with O4N binding sets. For the μ-oxidodioxidodivanadium species in equilibrium with 5-8 in CH2Cl2, no mixed-valence complexes are detected by chronocoulometric and EPR studies. However, upon progressive transfer of two electrons, two distinct monomeric V(IV)O species are detected and characterized by EPR spectroscopy and DFT calculations.
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Affiliation(s)
- Subhashree P Dash
- Department of Chemistry, National Institute of Technology , Rourkela 769008, Odisha, India
| | - Sudarshana Majumder
- Department of Chemistry, National Institute of Technology , Rourkela 769008, Odisha, India
| | - Atanu Banerjee
- Department of Chemistry, National Institute of Technology , Rourkela 769008, Odisha, India
| | - M Fernanda N N Carvalho
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Pedro Adão
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - João Costa Pessoa
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Krzysztof Brzezinski
- Institute of Chemistry, University of Bialystok , Hurtowa 1, 5-399 Bialystok, Poland
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia, Università di Sassari , Via Vienna 2, I-07100 Sassari, Italy
| | - Hans Reuter
- Institute of Chemistry of New Materials, University of Osnabrück , Barbarastrasse 7, 49067 Osnabrück, Germany
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology , Rourkela 769008, Odisha, India
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Dash SP, Panda AK, Dhaka S, Pasayat S, Biswas A, Maurya MR, Majhi PK, Crochet A, Dinda R. A study of DNA/BSA interaction and catalytic potential of oxidovanadium(v) complexes with ONO donor ligands. Dalton Trans 2016; 45:18292-18307. [DOI: 10.1039/c6dt03228a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The study of DNA/BSA interaction and the catalytic potential of five mono- and dinuclear oxidoethoxido vanadium(v) complexes.
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Affiliation(s)
- Subhashree P. Dash
- Department of Chemistry
- National Institute of Technology
- Rourkela 769008
- India
- Department of Chemistry
| | - Alok K. Panda
- School of Basic Sciences
- Indian Institute of Technology Bhubaneswar
- Bhubaneswar 751 013
- India
| | - Sarita Dhaka
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
| | - Sagarika Pasayat
- Department of Chemistry
- National Institute of Technology
- Rourkela 769008
- India
| | - Ashis Biswas
- School of Basic Sciences
- Indian Institute of Technology Bhubaneswar
- Bhubaneswar 751 013
- India
| | - Mannar R. Maurya
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
| | - Paresh Kumar Majhi
- Department of Chemistry
- National Institute of Technology
- Rourkela 769008
- India
- Institute for Chemical Research
| | - Aurélien Crochet
- Fribourg Center for Nanomaterials
- Department of Chemistry
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
| | - Rupam Dinda
- Department of Chemistry
- National Institute of Technology
- Rourkela 769008
- India
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Maurya MR, Rana L, Avecilla F. Oxidoperoxidotungsten(VI) and dioxidotungsten(VI) complexes catalyzed oxidative bromination of thymol in presence of H2O2–KBr–HClO4. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.10.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Pessoa JC, Etcheverry S, Gambino D. Vanadium compounds in medicine. Coord Chem Rev 2015; 301:24-48. [PMID: 32226091 PMCID: PMC7094629 DOI: 10.1016/j.ccr.2014.12.002] [Citation(s) in RCA: 328] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 11/18/2014] [Accepted: 12/02/2014] [Indexed: 12/02/2022]
Abstract
Vanadium is a transition metal that, being ubiquitously distributed in soil, crude oil, water and air, also found roles in biological systems and is an essential element in most living beings. There are also several groups of organisms which accumulate vanadium, employing it in their biological processes. Vanadium being a biological relevant element, it is not surprising that many vanadium based therapeutic drugs have been proposed for the treatment of several types of diseases. Namely, vanadium compounds, in particular organic derivatives, have been proposed for the treatment of diabetes, of cancer and of diseases caused by parasites. In this work we review the medicinal applications proposed for vanadium compounds with particular emphasis on the more recent publications. In cells, partly due to the similarity of vanadate and phosphate, vanadium compounds activate numerous signaling pathways and transcription factors; this by itself potentiates application of vanadium-based therapeutics. Nevertheless, this non-specific bio-activity may also introduce several deleterious side effects as in addition, due to Fenton's type reactions or of the reaction with atmospheric O2, VCs may also generate reactive oxygen species, thereby introducing oxidative stress with consequences presently not well evaluated, particularly for long-term administration of vanadium to humans. Notwithstanding, the potential of vanadium compounds to treat type 2 diabetes is still an open question and therapies using vanadium compounds for e.g. antitumor and anti-parasitic related diseases remain promising.
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Affiliation(s)
- Joao Costa Pessoa
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Susana Etcheverry
- Cátedra de Bioquímica Patológica and CEQUINOR, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115 1900 La Plata, Argentina
| | - Dinorah Gambino
- Cátedra de Química Inorgánica, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800 Montevideo, Uruguay
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48
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Maurya MR, Uprety B, Avecilla F, Adão P, Costa Pessoa J. Vanadium(V) complexes of a tripodal ligand, their characterisation and biological implications. Dalton Trans 2015; 44:17736-55. [PMID: 26399883 DOI: 10.1039/c5dt02716k] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of the tripodal tetradentate dibasic ligand 6,6'-(2-(pyridin-2-yl)ethylazanediyl)bis(methylene)bis(2,4-di-tert-butylphenol), H2L(1)I, with [V(IV)O(acac)2] in CH3CN gives the V(V)O-complex, [V(V)O(acac)(L(1))] 1. Crystallisation of 1 in CH3CN at ∼0 °C gives dark blue crystals of 1, while at room temperature it affords dark green crystals of [{V(V)O(L(1))}2μ-O] 3. Upon prolonged treatment of 1 in MeOH, [V(V)O(OMe)(MeOH)(L(1))] 2 is obtained. All three complexes were analysed by single-crystal X-ray diffraction, depicting a distorted octahedral geometry around vanadium. In the reaction of H2L(1) with V(IV)OSO4 partial hydrolysis of the tripodal ligand results in the elimination of the pyridyl fragment of L(1) and the formation of H[V(V)O2(L(2))] 4 containing the ONO tridentate ligand 6,6'-azanediylbis(methylene)bis(2,4-di-tert-butylphenol), H2L(2)II. Compound 4, which was not fully characterised, undergoes dimerization in acetone yielding the hydroxido-bridged [{V(V)O(L(2))}2μ-(OH)2] 5 having a distorted octahedral geometry around each vanadium. In contrast, from a solution of 4 in acetonitrile, the dinuclear compound [{V(V)O(L(2))}2μ-O] 6 is obtained, with a trigonal bipyramidal geometry around each vanadium. The methoxido complex 2 is successfully employed as a functional catechol-oxidase mimic in the oxidation of catechol to o-quinone under air. The process was confirmed to follow a Michaelis-Menten type kinetics with respect to catechol, the Vmax and KM values obtained being 7.66 × 10(-6) M min(-1) and 0.0557 M, respectively, and the turnover frequency is 0.0541 min(-1). A similar reaction with the bulkier 3,5-di-tert-butylcatechol proceeded at a much slower rate. Complex 2 was also used as a catalyst precursor for the oxidative bromination of thymol in aqueous medium. The selectivity shows quite interesting trends, namely when not using excess of the primary oxidizing agent, H2O2, the para mono-brominated product corresponds to ∼93% of the products and no dibromo derivative is formed.
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Affiliation(s)
- Mannar R Maurya
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India.
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Palladium(II) complexes of OS donor N-(di(butyl/phenyl)carbamothioyl)benzamide and their antiamoebic activity. Eur J Med Chem 2015; 98:54-60. [PMID: 26005916 DOI: 10.1016/j.ejmech.2015.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 05/03/2015] [Accepted: 05/04/2015] [Indexed: 11/21/2022]
Abstract
Two promising palladium(II) compounds of general formula, cis-[Pd(L-O,S)2] [where HL-O,S = N-(di(butyl/phenyl)carbamothioyl)benzamide] as metal based antiamoebic drug candidates, have been synthesized. Both complexes are characterized in the solid state by FT-IR spectroscopy, TGA and single crystal X-ray study, as well as in solution by other spectroscopic techniques such as (1)H and (13)C NMR, and UV-visible. All these studies confirm the coordination of ligands through oxygen and sulphur atoms upon thioenolization induced delocalization. Complexes adopt cis-configuration in the solid state. Both the complexes and their respective ligands were screened in vitro for antiamoebic activity against HM1:1MSS strain of Entamoeba histolytica by microdilution method and cell viability in response to drugs was checked by using MTT assay. The IC50 values in the range 0.30-0.80 μM for ligands as well as complexes compared to 1.40 for metronidazole along with their similar inhibitory effect on cell viability of HEK293 cells like metronidazole make them promising future antiamoebic drugs.
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Thirty years through vanadium chemistry. J Inorg Biochem 2015; 147:4-24. [PMID: 25843361 DOI: 10.1016/j.jinorgbio.2015.03.004] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 03/12/2015] [Accepted: 03/13/2015] [Indexed: 11/23/2022]
Abstract
The relevance of vanadium in biological systems is known for many years and vanadium-based catalysts have important industrial applications, however, till the beginning of the 80s research on vanadium chemistry and biochemistry did not receive much attention from the scientific community. The understanding of the broad bioinorganic implications resulting from the similarities between phosphate and vanadate(V) and the discovery of vanadium dependent enzymes gave rise to an enormous increase in interest in the chemistry and biological relevance of vanadium. Thereupon the last 30years corresponded to a period of enormous research effort in these fields, as well as in medicinal applications of vanadium and in the development of catalysts for use in fine-chemical synthesis, some of these inspired by enzymatic active sites. Since the 80s my group in collaboration with others made contributions, described throughout this text, namely in the understanding of the speciation of vanadium compounds in aqueous solution and in biological fluids, and to the transport of vanadium compounds in blood plasma and their uptake by cells. Several new types of vanadium compounds were also synthesized and characterized, with applications either as prospective therapeutic drugs or as homogeneous or heterogenized catalysts for the production of fine chemicals. The developments made are described also considering the international context of the evolution of the knowledge in the chemistry and bioinorganic chemistry of vanadium compounds during the last 30years. This article was compiled based on the Vanadis Award presentation at the 9th International Vanadium Symposium.
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