1
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Dridi R, Abdelkafi-Koubaa Z, Srairi-Abid N, Socha B, Zid MF. One-pot synthesis, structural investigation, antitumor activity and molecular docking approach of two decavanadate compounds. J Inorg Biochem 2024; 255:112533. [PMID: 38547784 DOI: 10.1016/j.jinorgbio.2024.112533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/05/2024] [Accepted: 03/18/2024] [Indexed: 04/16/2024]
Abstract
Two bases-decavanadates coordination compounds [(C6H13N4)2][Mg(H2O)6]2[O28V10].6H2O (1) and [(C7H11N2)4][Mg(H2O)6][O28V10].4H2O (2) have been synthesized and well characterized using vibrational spectroscopy (infrared), UV-Visible analysis and single crystal X-ray diffraction technique. The formula unit, for both compounds, is composed by the decavanadate [V10O28]6-, hydrated magnesium ion, a counter anion and free water molecules. The transition metal adopts octahedral geometries in both compound (1) and (2). The existence of a multitude of hydrogen bonding interactions for both compounds provides a stable three-dimensional supramolecular structure. Optical absorption reveals a band gap energy indicating the semi-conductive nature of the compound. In this study, the cytotoxic and the anti-proliferative activities of compounds (1) and (2) on human cancer cells (U87 and MDA-MB-231) were investigated. Both compounds demonstrated dose-dependent anti-proliferative activity on U87 and MDA-MB-231 with respective IC50 values of 0.82 and 0.31 μM and 1.4 and 1.75 μM. These data provide evidence on the potential anticancer activity of [(C6H13N4)2][Mg(H2O)6]2[O28V10].6H2O and [(C7H11N2)4][Mg(H2O)2][O28V10].4H2O. Molecular docking of the compounds was also examined. Molecular docking studies were performed for both compounds against four target receptors and revealed better binding affinity with these targets in comparison to Cisplatin. Moreover, molecular docking investigations suggest that these compounds may function as potential inhibitors of proteins in brain and breast cells, exhibiting greater efficiency compared to Cisplatin.
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Affiliation(s)
- Rihab Dridi
- University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Materials, Crystal Chemistry and Applied Thermodynamics, 2092 El Manar II, Tunis, Tunisia.
| | - Zaineb Abdelkafi-Koubaa
- University of Tunis El Manar, Salah Azaiz Institute, LR21SP01, Laboratory of Personalized Medicine, Precision Medicine and Investigation in Oncology, Tunis 1006, Tunisia.; University of Tunis El Manar, Pasteur Institute of Tunis, LR20IPT01, Laboratory of Biomolecules, Venoms and Theranostic Applications, Tunis 1002, Tunisia
| | - Najet Srairi-Abid
- University of Tunis El Manar, Pasteur Institute of Tunis, LR20IPT01, Laboratory of Biomolecules, Venoms and Theranostic Applications, Tunis 1002, Tunisia
| | - Bhavesh Socha
- Department of Physics, Sardar Patel University, Gujarat, India
| | - Mohamed Faouzi Zid
- University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Materials, Crystal Chemistry and Applied Thermodynamics, 2092 El Manar II, Tunis, Tunisia
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2
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Somasundaram JD, Ebrahimi A, Nandan SP, Cherevan A, Eder D, Šupolíková M, Nováková E, Gyepes R, Krivosudský L. Functionalization of decavanadate anion by coordination to cobalt(II): Binding to proteins, cytotoxicity, and water oxidation catalysis. J Inorg Biochem 2023; 239:112067. [PMID: 36423394 DOI: 10.1016/j.jinorgbio.2022.112067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/01/2022] [Accepted: 11/08/2022] [Indexed: 11/18/2022]
Abstract
A series of five decavanadates (V10) using a simple, one-pot synthesis, adhering to the model template: transition metal ion - decavanadate - ligands:(Hnicotinamide)2{[Co(H2O)3(nicotinamide)2]2[μ-V10O28]}.6H2O (1), {[Co(H2O)4(isonicotinamide)2]3}V10O28·4H2O (2), {[Co(H2O)4]2[Co(H2O)2(μ-pyrazinamide)2][μ-V10O28]}·4H2O (3) {[Co(H2O)4(μ-pyrazinamide)]3.V10O28}·4H2O (4), and (NH4)2{[Ni(H2O)4(2-hydroxyethylpyridine)]2}V10O28·2H2O (5) was synthesized. X-ray analysis reveals that 1 and 3 are decavanadato complexes, while 2, 4 and 5 are decavanadate complex salts. Moreover, 3 is the first example of a polymeric decavanadato complex, employing direct coordination with the metal center and the organic ligand, in toto. From the solution studies using 51V NMR spectroscopy, it was decoded that 1 and 3 stay stable in the model buffer solution and aqueous media. Binding to model proteins, cytotoxicity and water oxidation catalysis (WOC) was studied primarily for 1 and 3 and concluded that neither 1 nor 3 have an interaction with the model proteins thaumatin, lysozyme and proteinase K, because of the presence of the organic ligands in the Co(II) center, any further interplay with the proteins was blocked. Cytotoxicity studies reveal that 1 is 40% less toxic (0.05 mM) and 26% less toxic (0.1 mM) than the uncoordinated V10 with human cell lines A549 and HeLa respectively. In WOC, 1 performed superior activity, by evolving 143.37 nmol of O2 which is 700% (9-fold) increase than the uncoordinated V10.
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Affiliation(s)
- Janaki Devi Somasundaram
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina, 842 15 Bratislava, Slovakia
| | - Arash Ebrahimi
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina, 842 15 Bratislava, Slovakia
| | - Sreejith P Nandan
- Institute of Materials Chemistry, Technische Universität Wien, 1060 Vienna, Austria
| | - Alexey Cherevan
- Institute of Materials Chemistry, Technische Universität Wien, 1060 Vienna, Austria.
| | - Dominik Eder
- Institute of Materials Chemistry, Technische Universität Wien, 1060 Vienna, Austria
| | - Miroslava Šupolíková
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina, 842 15 Bratislava, Slovakia
| | - Eva Nováková
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina, 842 15 Bratislava, Slovakia
| | - Róbert Gyepes
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 128 00, Czech Republic
| | - Lukáš Krivosudský
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina, 842 15 Bratislava, Slovakia.
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3
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Stehlíková G, Gyepes R, Bystrický R, Škrátek M, Vaněk P, Tatiersky J. Thermal properties of the hybrid compound [Cu(en)2(VO3)2]•3H2O — phase analysis upon heating and cooling. Crystal structure characterization of its two polymorphic modifications. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129930] [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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Buvailo HI, Makhankova VG, Kokozay VN, Omelchenko IV, Shishkina SV, Bieńko A, Pavliuk MV, Shylin SI. Hybrid compound based on diethylenetriaminecopper( ii) cations and scarce V-monosubstituted β-octamolybdate as water oxidation catalyst. RSC Adv 2021; 11:32119-32125. [PMID: 35495520 PMCID: PMC9041742 DOI: 10.1039/d1ra05030c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/08/2021] [Indexed: 11/21/2022] Open
Abstract
Herein, we report on a new hybrid compound (NH4){[Cu(dien)(H2O)2]2[β-VMo7O26]}·1.5H2O (1), where dien = diethylenetriamine, containing an extremely rare mixed-metal pseudo-octamolybdate cluster. An ex situ EPR spectroscopy provided insights into the formation of paramagnetic species in reaction mixture and in solution of 1. The magneto-structural correlations revealed weak antiferromagnetic exchange interactions between the [Cu(dien)]2+ cations transmitted by intermolecular pathways. The cyclic voltammetry showed the one-electron process associated with the Cu3+/Cu2+ oxidation followed by the multi-electron catalytic wave due to water oxidation with a faradaic yield of 86%. The title compound was thus employed in homogeneous water oxidation catalysis using tris(bipyridine)ruthenium photosensitizer. At pH 8.0, efficiency of the catalytic system attained 0.19 turnovers per second supported by the relatively mild water oxidation overpotential of 0.54 V. A new hybrid compound (NH4){[Cu(dien)(H2O)2]2[β-VMo7O26]}·1.5H2O was employed in homogeneous water oxidation catalysis. At pH 8.0, its efficiency attains 0.19 turnovers per second, supported by the relatively mild water oxidation overpotential of 0.54 V.![]()
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Affiliation(s)
- Halyna I. Buvailo
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Street 64/13, 01601 Kyiv, Ukraine
| | - Valeriya G. Makhankova
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, Hlushkova Avenue, 4g, 03022, Kyiv, Ukraine
| | - Vladimir N. Kokozay
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Street 64/13, 01601 Kyiv, Ukraine
| | - Iryna V. Omelchenko
- Institute for Single Crystals, National Academy of Sciences of Ukraine, Nauky Ave 60, 61001 Kharkiv, Ukraine
| | - Svitlana V. Shishkina
- Institute for Single Crystals, National Academy of Sciences of Ukraine, Nauky Ave 60, 61001 Kharkiv, Ukraine
| | - Alina Bieńko
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Mariia V. Pavliuk
- Department of Chemistry – Ångström Laboratory, Uppsala University, P. O. Box 523, 75120 Uppsala, Sweden
| | - Sergii I. Shylin
- Department of Chemistry – Ångström Laboratory, Uppsala University, P. O. Box 523, 75120 Uppsala, Sweden
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5
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Buvailo HI, Pavliuk MV, Makhankova VG, Kokozay VN, Bon V, Mijangos E, Shylin SI, Jezierska J. Facile one-pot synthesis of hybrid compounds based on decavanadate showing water oxidation activity. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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6
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Accessing decavanadate chemistry with tris(hydroxymethyl)aminomethane, and evaluation of methylene blue bleaching. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114414] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Buvailo HI, Makhankova VG, Kokozay VN, Omelchenko IV, Shishkina SV, Jezierska J, Pavliuk MV, Shylin SI. Copper-containing hybrid compounds based on extremely rare [V2Mo6O26]6– POM as water oxidation catalysts. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00040b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybrid Cu/V/Mo compounds with rare [α-V2Mo6O26]6– and oxides prepared by their thermal degradation were used as catalysts for water oxidation.
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Affiliation(s)
- Halyna I. Buvailo
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- 01601 Kyiv
- Ukraine
| | | | - Vladimir N. Kokozay
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- 01601 Kyiv
- Ukraine
| | - Irina V. Omelchenko
- Institute for Single Crystals
- National Academy of Sciences of Ukraine
- 61001 Kharkiv
- Ukraine
| | - Svitlana V. Shishkina
- Institute for Single Crystals
- National Academy of Sciences of Ukraine
- 61001 Kharkiv
- Ukraine
| | - Julia Jezierska
- Faculty of Chemistry
- University of Wroclaw
- 50-383 Wroclaw
- Poland
| | - Mariia V. Pavliuk
- Department of Chemistry – Ångström Laboratory
- Uppsala University
- 75120 Uppsala
- Sweden
| | - Sergii I. Shylin
- Department of Chemistry – Ångström Laboratory
- Uppsala University
- 75120 Uppsala
- Sweden
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8
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Krivosudský L, Roller A, Rompel A. Tuning the interactions of decavanadate with thaumatin, lysozyme, proteinase K and human serum proteins by its coordination to a pentaaquacobalt(ii) complex cation. NEW J CHEM 2019. [DOI: 10.1039/c9nj02495f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Inorganic functionalization of the decavanadate anion promotes a different type of interaction with model proteins thaumatin, lysozyme, proteinase K, human serum albumin and transferrin.
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Affiliation(s)
- Lukáš Krivosudský
- Universität Wien
- Fakultät für Chemie
- Institut für Biophysikalische Chemie
- Wien 1090
- Austria
| | - Alexander Roller
- Universität Wien
- Fakultät für Chemie
- Zentrum für Röntgenstrukturanalyse
- 1090 Wien
- Austria
| | - Annette Rompel
- Universität Wien
- Fakultät für Chemie
- Institut für Biophysikalische Chemie
- Wien 1090
- Austria
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9
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Sánchez-Lara E, Martínez-Valencia B, Corona-Motolinia ND, Sanchez-Gaytan BL, Castro ME, Bernès S, Méndez-Rojas MA, Meléndez-Bustamante FJ, González-Vergara E. A one-dimensional supramolecular chain based on [H 2V 10O 28] 4− units decorated with 4-dimethylaminopyridinium ions: an experimental and theoretical characterization. NEW J CHEM 2019. [DOI: 10.1039/c9nj02097g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
One-dimensional supramolecular structure with [H2V10O28]4− units was synthesized and experimental-theoretical characterized as potential releasing prodrug of the decavanadate ion.
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Affiliation(s)
- Eduardo Sánchez-Lara
- Centro de Química del Instituto de Ciencias
- Benemérita Universidad Autónoma de Puebla. 18 Sur y Av. San Claudio
- Col. San Manuel
- Puebla
- Mexico
| | - Beatriz Martínez-Valencia
- Centro de Química del Instituto de Ciencias
- Benemérita Universidad Autónoma de Puebla. 18 Sur y Av. San Claudio
- Col. San Manuel
- Puebla
- Mexico
| | - Nidia D. Corona-Motolinia
- Centro de Química del Instituto de Ciencias
- Benemérita Universidad Autónoma de Puebla. 18 Sur y Av. San Claudio
- Col. San Manuel
- Puebla
- Mexico
| | - Brenda L. Sanchez-Gaytan
- Centro de Química del Instituto de Ciencias
- Benemérita Universidad Autónoma de Puebla. 18 Sur y Av. San Claudio
- Col. San Manuel
- Puebla
- Mexico
| | - María Eugenia Castro
- Centro de Química del Instituto de Ciencias
- Benemérita Universidad Autónoma de Puebla. 18 Sur y Av. San Claudio
- Col. San Manuel
- Puebla
- Mexico
| | - Sylvain Bernès
- Instituto de Física “Luis Rivera Terrazas”
- Benemérita Universidad Autónoma de Puebla
- Puebla
- Mexico
| | - Miguel A. Méndez-Rojas
- Departamento de Ciencias Químico-Biológicas
- Universidad de las Américas Puebla
- Exhacienda Sta. Catarina Mártir
- San Andrés Cholula
- 72820 Puebla
| | | | - Enrique González-Vergara
- Centro de Química del Instituto de Ciencias
- Benemérita Universidad Autónoma de Puebla. 18 Sur y Av. San Claudio
- Col. San Manuel
- Puebla
- Mexico
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10
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Sánchez-Lara E, Treviño S, Sánchez-Gaytán BL, Sánchez-Mora E, Eugenia Castro M, Meléndez-Bustamante FJ, Méndez-Rojas MA, González-Vergara E. Decavanadate Salts of Cytosine and Metformin: A Combined Experimental-Theoretical Study of Potential Metallodrugs Against Diabetes and Cancer. Front Chem 2018; 6:402. [PMID: 30333969 PMCID: PMC6176007 DOI: 10.3389/fchem.2018.00402] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/20/2018] [Indexed: 01/15/2023] Open
Abstract
Cytosine, a DNA and RNA building-block, and Metformin, the most widely prescribed drug for the treatment of Type 2 Diabetes mellitus were made to react separately with ammonium or sodium metavanadates in acidic aqueous solutions to obtain two polyoxovanadate salts with a 6:1 ratio of cation-anion. Thus, compounds [HCyt]6[V10O28]·4H2O, 1 and [HMetf]6[V10O28]·6H2O, 2 (where HCyt = Cytosinium cation, [C4H6N3O]+ and HMetf = Metforminium cation, [C4H12N5]+) were obtained and characterized by elemental analysis, single crystal X-ray diffraction, vibrational spectroscopy (IR and Raman), solution 51V-NMR, thermogravimetric analysis (TGA-DTGA), as well as, theoretical methods. Both compounds crystallized in P1 ¯ space group with Z' = 1/2, where the anionic charge of the centrosymmetric ion [V10O28]6- is balanced by six Cytosinium and six Metforminium counterions, respectively. Compound 1 is stabilized by π-π stacking interactions coming from the aromatic rings of HCyt cations, as denoted by close contacts of 3.63 Å. On the other hand, guanidinium moieties from the non-planar HMetf in Compound 2 interact with decavanadate μ2-O atoms via N-H···O hydrogen bonds. The vibrational spectroscopic data of both IR and Raman spectra show that the dominant bands in the 1000-450 cm-1 range are due to the symmetric and asymmetric ν(V-O) vibrational modes. In solution, 51V-NMR experiments of both compounds show that polyoxovanadate species are progressively transformed into the monomeric, dimeric and tetrameric oxovanadates. The thermal stability behavior suggests a similar molecular mechanism regarding the loss of water molecules and the decomposition of the organic counterions. Yet, no changes were observed in the TGA range of 540-580°C due to the stability of the [V10O28]6- fragment. Dispersion-corrected density functional theory (DFT-D) calculations were carried out to model the compounds in aqueous phase using a polarized continuum model calculation. Optimized structures were obtained and the main non-covalent interactions were characterized. Biological activities of these compounds are also under investigation. The combination of two therapeutic agents opens up a window toward the generation of potential metalopharmaceuticals with new and exciting pharmacological properties.
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Affiliation(s)
- Eduardo Sánchez-Lara
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Samuel Treviño
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Brenda L. Sánchez-Gaytán
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Enrique Sánchez-Mora
- Instituto de Física “Luis Rivera Terrazas”, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - María Eugenia Castro
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | | | - Miguel A. Méndez-Rojas
- Departamento de Ciencias Químico-Biológicas, Universidad de las Américas Puebla, Puebla, Mexico
| | - Enrique González-Vergara
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
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11
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Buvailo HI, Makhankova VG, Kokozay VN, Zatovsky IV, Omelchenko IV, Shishkina SV, Zabierowski P, Matoga D, Jezierska J. Diversity of Polyoxometalate‐Based Copper Compounds Obtained from the Same Reaction System. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600976] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Halyna I. Buvailo
- Department of Chemistry Taras Shevchenko National University of Kyiv Volodymyrska 64/13 01601 Kyiv Ukraine
| | - Valeriya G. Makhankova
- Department of Chemistry Taras Shevchenko National University of Kyiv Volodymyrska 64/13 01601 Kyiv Ukraine
| | - Vladimir N. Kokozay
- Department of Chemistry Taras Shevchenko National University of Kyiv Volodymyrska 64/13 01601 Kyiv Ukraine
| | - Igor V. Zatovsky
- Department of Chemistry Taras Shevchenko National University of Kyiv Volodymyrska 64/13 01601 Kyiv Ukraine
- College of Physics Jilin University 130012 Changchun P.R. China
| | - Irina V. Omelchenko
- SSI “Institute for Single Crystals” National Academy of Sciences of Ukraine Nauky Ave 60 61072 Kharkiv Ukraine
| | - Svitlana V. Shishkina
- SSI “Institute for Single Crystals” National Academy of Sciences of Ukraine Nauky Ave 60 61072 Kharkiv Ukraine
| | - Piotr Zabierowski
- Faculty of Chemistry Jagiellonian University Ingardena 3 30‐060 Kraków Poland
| | - Dariusz Matoga
- Faculty of Chemistry Jagiellonian University Ingardena 3 30‐060 Kraków Poland
| | - Julia Jezierska
- Faculty of Chemistry University of Wroclaw F. Joliot‐Curie 14 50‐383 Wroclaw Poland
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12
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Pavliuk MV, Mijangos E, Makhankova VG, Kokozay VN, Pullen S, Liu J, Zhu J, Styring S, Thapper A. Homogeneous Cobalt/Vanadium Complexes as Precursors for Functionalized Mixed Oxides in Visible-Light-Driven Water Oxidation. CHEMSUSCHEM 2016; 9:2957-2966. [PMID: 27689346 DOI: 10.1002/cssc.201600769] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/03/2016] [Indexed: 06/06/2023]
Abstract
The heterometallic complexes (NH4 )2 [Co(H2 O)6 ]2 [V10 O28 ]⋅4 H2 O (1) and (NH4 )2 [Co(H2 O)5 (β-HAla)]2 [V10 O28 ]⋅4 H2 O (2) have been synthesized and used for the preparation of mixed oxides as catalysts for water oxidation. Thermal decomposition of 1 and 2 at relatively low temperatures (<500 °C) leads to the formation of the solid mixed oxides CoV2 O6 /V2 O5 (3) and Co2 V2 O7 /V2 O5 (4). The complexes (1, 2) and heterogeneous materials (3, 4) act as catalysts for photoinduced water oxidation. A modification of the thermal decomposition procedure allowed the deposition of mixed metal oxides (MMO) on a mesoporous TiO2 film. The electrodes containing Co/V MMOs in TiO2 films were used for electrocatalytic water oxidation and showed good stability and sustained anodic currents of about 5 mA cm-2 at 1.72 V versus relative hydrogen electrode (RHE). This method of functionalizing TiO2 films with MMOs at relatively low temperatures (<500 °C) can be used to produce other oxides with different functionality for applications in, for example, artificial photosynthesis.
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Affiliation(s)
- Mariia V Pavliuk
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden.
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64/13, 01601, Kyiv, Ukraine.
| | - Edgar Mijangos
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Valeriya G Makhankova
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64/13, 01601, Kyiv, Ukraine
| | - Vladimir N Kokozay
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64/13, 01601, Kyiv, Ukraine
| | - Sonja Pullen
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Jia Liu
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Jiefang Zhu
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Stenbjörn Styring
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Anders Thapper
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden.
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13
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Sánchez-Lombardo I, Baruah B, Alvarez S, Werst KR, Segaline NA, Levinger NE, Crans DC. Size and shape trump charge in interactions of oxovanadates with self-assembled interfaces: application of continuous shape measure analysis to the decavanadate anion. NEW J CHEM 2016. [DOI: 10.1039/c5nj01788b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using 51V NMR spectroscopy, dynamic light scattering and continuous shape analysis to characterize two polyoxometalate-encapsulation in reverse micelles.
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Affiliation(s)
| | - Bharat Baruah
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
- Department of Chemistry
| | - Santiago Alvarez
- Departament de Química Inorganica
- Institut de Química Teorica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Katarina R. Werst
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
| | | | - Nancy E. Levinger
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
| | - Debbie C. Crans
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
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Franco MP, Rüdiger AL, Soares JF, Nunes GG, Hughes DL. Crystal structures of two deca-vanadates(V) with penta-aqua-manganese(II) pendant groups: (NMe4)2[V10O28{Mn(H2O)5}2]·5H2O and [NH3C(CH2OH)3]2[V10O28{Mn(H2O)5}2]·2H2O. Acta Crystallogr E Crystallogr Commun 2015; 71:146-50. [PMID: 25878804 PMCID: PMC4384578 DOI: 10.1107/s2056989014028230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 12/29/2014] [Indexed: 11/26/2022]
Abstract
Two heterometallic deca-vanadate(V) compounds, bis-(tetra-methyl-ammonium) deca-aquadi-μ4-oxido-tetra-μ3-oxido-hexa-deca-μ2-oxido-hexa-oxidodimang-anese(II)-deca-vanadate(V) penta-hydrate, (Me4N)2[V10O28{Mn(H2O)5}2]·5H2O, A, and bis-{[tris-(hy-droxy-meth-yl)meth-yl]ammonium} deca-aquadi-μ4-oxido-tetra-μ3-oxido-hexa-deca-μ2-oxido-hexa-oxidodimanganese(II)deca-vanadate(V) dihydrate, [NH3C(CH2OH)3]2[V10O28{Mn(H2O)5}2]·2H2O, B, have been synthesized under mild reaction conditions in an aqueous medium. Both polyanions present two [Mn(OH2)5](2+) complex units bound to the deca-vanadate cluster through oxide bridges. In A, the deca-vanadate unit has 2/m symmetry, whereas in B it has twofold symmetry. Apart from this, the main differences between A and B rest on the organic cations, tetra-methyl-ammonium and [tris-(hy-droxy-meth-yl)meth-yl]ammonium, respectively, and on the number and arrangement of the water mol-ecules of crystallization. In both compounds, the H atoms from the coordinating water mol-ecules participate in extensive three-dimensional hydrogen-bonding networks, which link the cluster units both directly and through solvent mol-ecules and, in B, through the 'tris-' cation hydroxyl groups. The cation in B also participates in N-H⋯O hydrogen bonds. A number of C-H⋯O inter-actions are also observed in both structures.
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Affiliation(s)
- Maurício P. Franco
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas, 81530-900 Curitiba, PR, Brazil
| | - André Luis Rüdiger
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas, 81530-900 Curitiba, PR, Brazil
| | - Jaísa F. Soares
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas, 81530-900 Curitiba, PR, Brazil
| | - Giovana G. Nunes
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas, 81530-900 Curitiba, PR, Brazil
| | - David L. Hughes
- School of Chemistry, University of East Anglia, Norwich NR4 7TJ, England
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