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Zhang M, Liu J, Gao Y, Zhao B, Xu ML, Zhang T. Se site targeted-two circles antioxidant in GPx4-like catalytic peroxide degradation by polyphenols (-)-epigallocatechin gallate and genistein using SERS. Food Chem X 2024; 22:101387. [PMID: 38665629 PMCID: PMC11043887 DOI: 10.1016/j.fochx.2024.101387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
A Se site targeted-two circles antioxidant of polyphenols EGCG and genistein in glutathione peroxidase 4 (GPx4)-like catalytic peroxide H2O2 and cumene hydroperoxide degradation was demonstrated by surface-enhanced Raman scattering (SERS). Se atom's active center is presenting a 'low-oxidation' and a 'high-oxidation' catalytic cycle. The former is oxidized to selenenic acid (SeO-) with a Raman bond at 619/ 610 cm-1 assigned to the νO - Se by the hydroperoxide substrate at 544/ 551 cm-1 assigned to ωHSeC decreased. Under oxidative stress, the enzyme shifted to 'high-oxidation' catalytic cycle, in which GPx4 shuttles between R-SeO- and R-SeOO- with a Raman intensity of bond at 840/ 860 cm-1 assigned to νO[bond, double bond]Se. EGCG could act as a reducing agent both in H2O2 and Cu-OOH degradation, while, genistein can only reduce Cu-OOH, because it binds more readily to the selenium site in GPx4 than EGCG with a closer proximity, therefore may affect its simultaneous binding to coenzymes.
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Affiliation(s)
- Mengmeng Zhang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food/ College of Food Science and Engineering, Jilin University, Changchun 130062, PR China
| | - Jingbo Liu
- Jilin Provincial Key Laboratory of Nutrition and Functional Food/ College of Food Science and Engineering, Jilin University, Changchun 130062, PR China
| | - Yu Gao
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, PR China
| | - Bing Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Meng-Lei Xu
- Jilin Provincial Key Laboratory of Nutrition and Functional Food/ College of Food Science and Engineering, Jilin University, Changchun 130062, PR China
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Ting Zhang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food/ College of Food Science and Engineering, Jilin University, Changchun 130062, PR China
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2
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Zhu Y, Wang J, Patel SB, Li C, Head AR, Boscoboinik JA, Zhou G. Tuning the surface reactivity of oxides by peroxide species. Proc Natl Acad Sci U S A 2023; 120:e2215189120. [PMID: 36943886 PMCID: PMC10068848 DOI: 10.1073/pnas.2215189120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 01/21/2023] [Indexed: 03/23/2023] Open
Abstract
The Mars-van Krevelen mechanism is the foundation for oxide-catalyzed oxidation reactions and relies on spatiotemporally separated redox steps. Herein, we demonstrate the tunability of this separation with peroxide species formed by excessively adsorbed oxygen, thereby modifying the catalytic activity and selectivity of the oxide. Using CuO as an example, we show that a surface layer of peroxide species acts as a promotor to significantly enhance CuO reducibility in favor of H2 oxidation but conversely as an inhibitor to suppress CuO reduction against CO oxidation. Together with atomistic modeling, we identify that this opposite effect of the peroxide on the two oxidation reactions stems from its modification on coordinately unsaturated sites of the oxide surface. By differentiating the chemical functionality between lattice oxygen and peroxide, these results are closely relevant to a wide range of catalytic oxidation reactions using excessively adsorbed oxygen to activate lattice oxygen and tune the activity and selectivity of redox sites.
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Affiliation(s)
- Yaguang Zhu
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY13902
| | - Jianyu Wang
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY13902
| | - Shyam Bharatkumar Patel
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY13902
| | - Chaoran Li
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY13902
| | - Ashley R. Head
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY11973
| | | | - Guangwen Zhou
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY13902
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3
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Xu X, Wang H, Tan CH, Ye X. Applications of Vanadium, Niobium, and Tantalum Complexes in Organic and Inorganic Synthesis. ACS ORGANIC & INORGANIC AU 2022; 3:74-91. [PMID: 37035284 PMCID: PMC10080730 DOI: 10.1021/acsorginorgau.2c00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/31/2022]
Abstract
Organometallic catalysis is a powerful strategy in chemical synthesis, especially with the cheap and low toxic metals based on green chemistry principle. Thus, the selection of the metal is particularly important to plan relevant and applicable processes. The group VB metals have been the subject of exciting and significant advances in both organic and inorganic synthesis. In this Review, we have summarized some reports from recent decades, which are about the development of group VB metals utilized in various types of reactions, such as oxidation, reduction, alkylation, dealkylation, polymerization, aromatization, protein synthesis, and practical water splitting.
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Affiliation(s)
- Xinru Xu
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, P. R. China
| | - Hong Wang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, P. R. China
| | - Choon-Hong Tan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Xinyi Ye
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, P. R. China
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4
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Chen Z, Schwarz B, Zhang X, Du W, Zheng L, Tian A, Zhang Y, Zhang Z, Zeng XC, Zhang Z, Huai L, Wu J, Ehrenberg H, Wang D, Li J. Peroxo Species Formed in the Bulk of Silicate Cathodes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhenlian Chen
- Key Laboratory of Optoelectronic Chemical Materials and Devices School of Chemical and Environmental Engineering Jianghan University Wuhan China
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
- Department of Chemistry University of Nebraska–Lincoln Lincoln NE USA
| | - Bjoern Schwarz
- Institute for Applied Materials (IAM) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 Eggenstein-Leopoldshafen Germany
| | - Xianhui Zhang
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
| | - Wenqiang Du
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
| | - Lirong Zheng
- Institute of High Energy Physics Chinese Academy of Sciences Beijing China
| | - Ailing Tian
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
| | - Ying Zhang
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
| | - Zhiyong Zhang
- Stanford Research Computing Center Stanford University 255 Panama Street Stanford CA USA
| | - Xiao Cheng Zeng
- Department of Chemistry University of Nebraska–Lincoln Lincoln NE USA
| | - Zhifeng Zhang
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
| | - Liyuan Huai
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
| | - Jinlei Wu
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
| | - Helmut Ehrenberg
- Institute for Applied Materials (IAM) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 Eggenstein-Leopoldshafen Germany
| | - Deyu Wang
- Key Laboratory of Optoelectronic Chemical Materials and Devices School of Chemical and Environmental Engineering Jianghan University Wuhan China
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
| | - Jun Li
- Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences Ningbo China
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5
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Chen Z, Schwarz B, Zhang X, Du W, Zheng L, Tian A, Zhang Y, Zhang Z, Zeng XC, Zhang Z, Huai L, Wu J, Ehrenberg H, Wang D, Li J. Peroxo Species Formed in the Bulk of Silicate Cathodes. Angew Chem Int Ed Engl 2021; 60:10056-10063. [PMID: 33624367 PMCID: PMC8251627 DOI: 10.1002/anie.202100730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Indexed: 11/11/2022]
Abstract
Oxygen redox in Li-rich oxides may boost the energy density of lithium-ion batteries by incorporating oxygen chemistry in solid cathodes. However, oxygen redox in the bulk usually entangles with voltage hysteresis and oxygen release, resulting in a prolonged controversy in literature on oxygen transformation. Here, we report spectroscopic evidence of peroxo species formed and confined in silicate cathodes amid oxygen redox at high voltage, accompanied by Co2+ /Co3+ redox dominant at low voltage. First-principles calculations reveal that localized electrons on dangling oxygen drive the O-O dimerization. The covalence between the binding cation and the O-O dimer determines the degree of electron transfer in oxygen transformation. Dimerization induces irreversible structural distortion and slow kinetics. But peroxo formation can minimize the voltage drop and volume expansion in cumulative cationic and anionic redox. These findings offer insights into oxygen redox in the bulk for the rational design of high-energy-density cathodes.
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Affiliation(s)
- Zhenlian Chen
- Key Laboratory of Optoelectronic Chemical Materials and DevicesSchool of Chemical and Environmental EngineeringJianghan UniversityWuhanChina
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
- Department of ChemistryUniversity of Nebraska–LincolnLincolnNEUSA
| | - Bjoern Schwarz
- Institute for Applied Materials (IAM)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1Eggenstein-LeopoldshafenGermany
| | - Xianhui Zhang
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Wenqiang Du
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Lirong Zheng
- Institute of High Energy PhysicsChinese Academy of SciencesBeijingChina
| | - Ailing Tian
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Ying Zhang
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Zhiyong Zhang
- Stanford Research Computing CenterStanford University255 Panama StreetStanfordCAUSA
| | - Xiao Cheng Zeng
- Department of ChemistryUniversity of Nebraska–LincolnLincolnNEUSA
| | - Zhifeng Zhang
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Liyuan Huai
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Jinlei Wu
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Helmut Ehrenberg
- Institute for Applied Materials (IAM)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1Eggenstein-LeopoldshafenGermany
| | - Deyu Wang
- Key Laboratory of Optoelectronic Chemical Materials and DevicesSchool of Chemical and Environmental EngineeringJianghan UniversityWuhanChina
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Jun Li
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
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6
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Tao M, Ishikawa S, Murayama T, Inomata Y, Kamiyama A, Ueda W. Synthesis of Zeolitic Mo-Doped Vanadotungstates and Their Catalytic Activity for Low-Temperature NH3-SCR. Inorg Chem 2021; 60:5081-5086. [DOI: 10.1021/acs.inorgchem.1c00107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Meilin Tao
- Faculty of Engineering, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
| | - Satoshi Ishikawa
- Faculty of Engineering, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
| | - Toru Murayama
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Yusuke Inomata
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Akiho Kamiyama
- Faculty of Engineering, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
| | - Wataru Ueda
- Faculty of Engineering, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
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7
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Hess C. New advances in using Raman spectroscopy for the characterization of catalysts and catalytic reactions. Chem Soc Rev 2021; 50:3519-3564. [PMID: 33501926 DOI: 10.1039/d0cs01059f] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Gaining insight into the mode of operation of heterogeneous catalysts is of great scientific and economic interest. Raman spectroscopy has proven its potential as a powerful vibrational spectroscopic technique for a fundamental and molecular-level characterization of catalysts and catalytic reactions. Raman spectra provide important insight into reaction mechanisms by revealing specific information on the catalysts' (defect) structure in the bulk and at the surface, as well as the presence of adsorbates and reaction intermediates. Modern Raman instrumentation based on single-stage spectrometers allows high throughput and versatility in design of in situ/operando cells to study working catalysts. This review highlights major advances in the use of Raman spectroscopy for the characterization of heterogeneous catalysts made during the past decade, including the development of new methods and potential directions of research for applying Raman spectroscopy to working catalysts. The main focus will be on gas-solid catalytic reactions, but (photo)catalytic reactions in the liquid phase will be touched on if it appears appropriate. The discussion begins with the main instrumentation now available for applying vibrational Raman spectroscopy to catalysis research, including in situ/operando cells for studying gas-solid catalytic processes. The focus then moves to the different types of information available from Raman spectra in the bulk and on the surface of solid catalysts, including adsorbates and surface depositions, as well as the use of theoretical calculations to facilitate band assignments and to describe (resonance) Raman effects. This is followed by a presentation of major developments in enhancing the Raman signal of heterogeneous catalysts by use of UV resonance Raman spectroscopy, surface-enhanced Raman spectroscopy (SERS), and shell-isolated nanoparticle surface-enhanced Raman spectroscopy (SHINERS). The application of time-resolved Raman studies to structural and kinetic characterization is then discussed. Finally, recent developments in spatially resolved Raman analysis of catalysts and catalytic processes are presented, including the use of coherent anti-Stokes Raman spectroscopy (CARS) and tip-enhanced Raman spectroscopy (TERS). The review concludes with an outlook on potential future developments and applications of Raman spectroscopy in heterogeneous catalysis.
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Affiliation(s)
- Christian Hess
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 8, 64287, Darmstadt, Germany.
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8
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Mandal M, Cramer CJ, Truhlar DG, Sauer J, Gagliardi L. Structure and Reactivity of Single-Site Vanadium Catalysts Supported on Metal–Organic Frameworks. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02300] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mukunda Mandal
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Christopher J. Cramer
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Donald G. Truhlar
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Joachim Sauer
- Institut für Chemie, Humboldt-Universitat zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
| | - Laura Gagliardi
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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9
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Acosta D, Magaña C, Hernández F, Chavez-Esquivel G, Cortes-Cordova DE, Huerta L, Valdés-Martínez OU. Temperature effects on VO2 thin films deposited by RF sputtering for the degradation by photocatalysis of methylene blue and naproxen. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2020. [DOI: 10.1515/ijcre-2019-0214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe temperature effect on VO2 thin films synthesized by RF sputtering on their morphological, optical, electrical properties and their activity in the photocatalytic degradation of methylene blue and naproxen was studied. Characterization results presented microcrystallinity for VO2 films treated at 50 and 100 °C. Nevertheless, the untreated films and films treated at 200 °C revealed characteristic peaks of monoclinic and tetragonal phases. SEM micrographs with elemental mapping of VO2 films showed granular morphology and a good oxygen dispersion along the film surface, possibly due to a restructuring on the film occasioned by particle coalescence and vanadium oxide island conformation. The electronic transmittance spectra showed the d–d transition characteristic for the square-pyramidal stereochemistry of vanadium (IV) ion, where the optical band interval was high for films treated at 50 °C. Raman spectroscopy results presented an increment in the V = O/V–O ratio as a function of temperature, probably related to superficial vanadium species formation. X-ray spectroscopy results showed the Onon-lattice/Olattice ratio values higher for films treated at 50 °C than the other films, related to an oxide character. The V 2p fit results presented V4+, V5+ regions and satellites for VO2 films thermal treated at 50 °C. The electrical resistivity on the VO2 films decreased as a function of temperature. Finally, the VO2 films thermal treated at 50 °C had higher photocatalytic activity in the degradation of methylene blue and naproxen compared to the other VO2 films, possibly associated with high electron mobility between the surface and the bulk, where the oxygen vacancies act as recombination sites for the e−/h+ pairs during photocatalytic degradation.
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Affiliation(s)
- Dwight Acosta
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito de la Investigación Científica, Coyoacán, Mexico City, 04510, Mexico
| | - Carlos Magaña
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito de la Investigación Científica, Coyoacán, Mexico City, 04510, Mexico
| | - Francisco Hernández
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito de la Investigación Científica, Coyoacán, Mexico City, 04510, Mexico
| | - Gerardo Chavez-Esquivel
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito de la Investigación Científica, Coyoacán, Mexico City, 04510, Mexico
- Departamento de Ciencias Básicas, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana Azcapotzalco, Av. San Pablo 180, Col. Reynosa Tamaulipas, Azcapotzalco, Mexico City, 02200, Mexico
| | - Daniel Eduardo Cortes-Cordova
- Departamento de Ciencias Básicas, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana Azcapotzalco, Av. San Pablo 180, Col. Reynosa Tamaulipas, Azcapotzalco, Mexico City, 02200, Mexico
| | - Lázaro Huerta
- Instituto de Materiales, Universidad Nacional Autónoma de México, Circuito Exterior S/N Circuito de la, Investigación Científica, Cuidad Universitaria, Coyoacán, Mexico City, 04510, Mexico
| | - Omar Uriel Valdés-Martínez
- Departamento de Ingeniería de Procesos e Hidráulica, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No. 86, Col. Leyes de Reforma 1a Secc., Iztapalapa, Mexico City, 09310, Mexico
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10
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Yalcin O, Molinari Erwin JE, Gerceker D, Onal I, Wachs IE. Role of Local Structure on Catalytic Reactivity: Comparison of Methanol Oxidation by Aqueous Bioinorganic Enzyme Mimic (Vanadium Haloperoxidase) and Vanadia-Based Heterogeneous Catalyst (Supported VO4/SiO2). ACS Catal 2019. [DOI: 10.1021/acscatal.9b02450] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ozgen Yalcin
- Operando Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
- Department of Chemical Engineering, Middle East Technical University, Ankara 06800, Turkey
| | - Julie E. Molinari Erwin
- Operando Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Duygu Gerceker
- Department of Chemical Engineering, Middle East Technical University, Ankara 06800, Turkey
| | - Isik Onal
- Department of Chemical Engineering, Middle East Technical University, Ankara 06800, Turkey
| | - Israel E. Wachs
- Operando Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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11
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Ghosh S, Prasad S, Mugesh G. Understanding the role of oxo and peroxido species in the glutathione peroxidase (GPx)-like activity of metal based nanozymes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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12
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Ghosh S, Roy P, Karmodak N, Jemmis ED, Mugesh G. Nanoisozymes: Crystal-Facet-Dependent Enzyme-Mimetic Activity of V 2 O 5 Nanomaterials. Angew Chem Int Ed Engl 2018; 57:4510-4515. [PMID: 29424075 DOI: 10.1002/anie.201800681] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Indexed: 01/30/2023]
Abstract
Nanomaterials with enzyme-like activity (nanozymes) attract significant interest owing to their applications in biomedical research. Particularly, redox nanozymes that exhibit glutathione peroxidase (GPx)-like activity play important roles in cellular signaling by controlling the hydrogen peroxide (H2 O2 ) level. Herein we report, for the first time, that the redox properties and GPx-like activity of V2 O5 nanozyme depends not only on the size and morphology, but also on the crystal facets exposed on the surface within the same crystal system of the nanomaterials. These results suggest that the surface of the nanomaterials can be engineered to fine-tune their redox properties to act as "nanoisozymes" for specific biological applications.
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Affiliation(s)
- Sourav Ghosh
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Punarbasu Roy
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Naiwrit Karmodak
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Eluvathingal D Jemmis
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
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13
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Ghosh S, Roy P, Karmodak N, Jemmis ED, Mugesh G. Nanoisozymes: Crystal-Facet-Dependent Enzyme-Mimetic Activity of V2
O5
Nanomaterials. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800681] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sourav Ghosh
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
| | - Punarbasu Roy
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
| | - Naiwrit Karmodak
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
| | - Eluvathingal D. Jemmis
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
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14
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Maganas D, Trunschke A, Schlögl R, Neese F. A unified view on heterogeneous and homogeneous catalysts through a combination of spectroscopy and quantum chemistry. Faraday Discuss 2018; 188:181-97. [PMID: 27062973 DOI: 10.1039/c5fd00193e] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Identifying catalytically active structures or intermediates in homogeneous and heterogeneous catalysis is a formidable challenge. However, obtaining experimentally verified insight into the active species in heterogeneous catalysis is a tremendously challenging problem. Many highly advanced spectroscopic and microscopic methods have been developed to probe surfaces. In this discussion we employ a combination of spectroscopic methods to study two closely related systems from the heterogeneous (the silica-supported vanadium oxide VOx/SBA-15) and homogeneous (the complex K[VO(O2)Hheida]) domains. Spectroscopic measurements were conducted strictly in parallel for both systems and consisted of oxygen K-edge and vanadium L-edge X-ray absorption measurements in conjunction with resonance Raman spectroscopy. It is shown that the full information content of the spectra can be developed through advanced quantum chemical calculations that directly address the sought after structure-spectra relationships. To this end we employ the recently developed restricted open shell configuration interaction theory together with the time-dependent theory of electronic spectroscopy to calculate XAS and rR spectra respectively. The results of the study demonstrate that: (a) a combination of several spectroscopic techniques is of paramount importance in identifying signature structural motifs and (b) quantum chemistry is an extremely powerful guide in cross connecting theory and experiment as well as the homogeneous and heterogeneous catalysis fields. It is emphasized that the calculation of spectroscopic observables provides an excellent way for the critical experimental validation of theoretical results.
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Affiliation(s)
- Dimitrios Maganas
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, D-45470 Mülheim an der Ruhr, Germany.
| | | | - Robert Schlögl
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, D-45470 Mülheim an der Ruhr, Germany. and Fritz-Haber Institut, Faradayweg 4-6, 14195 Berlin, Germany
| | - Frank Neese
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, D-45470 Mülheim an der Ruhr, Germany.
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15
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Wang X, Ji K, Zhou G, Li Q, Zhou H, Xu C. Synthesis of V-MCM-41 Catalysts and Their Application in CO2
-Assisted Isobutane Dehydrogenation. Chem Eng Technol 2018. [DOI: 10.1002/ceat.201700284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Xiaosheng Wang
- China University of Petroleum-Beijing; State Key Laboratory of Heavy Oil Processing; Institute of New Energy; Beijing 102249 China
| | - Kehong Ji
- China University of Petroleum-Beijing; State Key Laboratory of Heavy Oil Processing; Institute of New Energy; Beijing 102249 China
| | - Guanglin Zhou
- China University of Petroleum-Beijing; State Key Laboratory of Heavy Oil Processing; Institute of New Energy; Beijing 102249 China
| | - Qin Li
- China University of Petroleum-Beijing; State Key Laboratory of Heavy Oil Processing; Institute of New Energy; Beijing 102249 China
| | - Hongjun Zhou
- China University of Petroleum-Beijing; State Key Laboratory of Heavy Oil Processing; Institute of New Energy; Beijing 102249 China
| | - Chunming Xu
- China University of Petroleum-Beijing; State Key Laboratory of Heavy Oil Processing; Institute of New Energy; Beijing 102249 China
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16
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Das U, Pattanayak P, Santra MK, Chattopadhyay S. Synthesis of New Oxido-Vanadium Complexes: Catalytic Properties and Cytotoxicity. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15168821806597] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Reaction of 2,3-dihydroxy benzaldehyde with 2-({2-amino phenyl}diazenyl)phenol afforded the ligand 3-(2-(2-hydroxyphenyl)diazenyl)-4-alkylphenyliminomethyl)benzene-1,2-diol. Reaction of H2L with VOSO4. 5H2O gave the oxido-vanadium(IV) complexes [(L)VO], which exhibited a quasi-reversible oxidative cyclic voltammetric response in a V(IV)/V(V) oxidative process. The complexes act as catalysts in the oxidation of organic thioethers and bromination of phenol. Their cytotoxic properties were examined for three cancer cell lines.
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Affiliation(s)
- Uttam Das
- Department of Chemistry, University of Kalyani, Kalyani 741235, India
- Department of Chemistry, Kalyani Government Engineering College, Kalyani 741235, India
| | | | - Manas Kumar Santra
- Cancer Biology and Epigenetics Lab, National Center for Cell Science, Ganeshkhind, Pune 411007, India
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17
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Klokishner S, Reu O, Noack J, Schlögl R, Trunschke A. Experimental Study and Modeling of the UV-Vis and Infrared Spectra of the [VO(O 2)Hheida] - Complex Dissolved in Water. J Phys Chem A 2017; 121:7157-7164. [PMID: 28853568 DOI: 10.1021/acs.jpca.7b07128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Combined theoretical and experimental studies of the [VO(O2)Hheida]- anion dissolved in water that may serve as a functional model for vanadium haloperoxidase enzymes have been performed. The geometrical structure and absorption and vibrational spectra of this system have been evaluated within the framework of density functional theory (DFT). The obtained theoretical results on the equilibrium structure and optical spectra are in quite good agreement with the experimental data. With the aid of the combination of UV-visible spectroscopy and electronic structure calculations, it has been revealed that, in the apparent absorption spectra of the [VO(O2)Hheida]- anion, the highest in energy band corresponds to a ligand to metal electron excitation, while the band with a maximum at 430 nm arises from the peroxo group. The calculations also reproduce quite well the positions, intensities and the grouping of frequencies in the near-infrared (NIR) spectra. The visualization of the calculated vibrations in the energy range of 400-1100 cm-1 has been presented.
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Affiliation(s)
- S Klokishner
- Institute of Applied Physics, Academy of Sciences of Moldova , Academy str. 5, MD 2028 Chisinau, Moldova
| | - O Reu
- Institute of Applied Physics, Academy of Sciences of Moldova , Academy str. 5, MD 2028 Chisinau, Moldova
| | - J Noack
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6, 14195 Berlin, Germany
| | - R Schlögl
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6, 14195 Berlin, Germany
| | - A Trunschke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6, 14195 Berlin, Germany
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18
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19
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Rana S, Pandey B, Dey A, Haque R, Rajaraman G, Maiti D. A Doubly Biomimetic Synthetic Transformation: Catalytic Decarbonylation and Halogenation at Room Temperature by Vanadium Pentoxide. ChemCatChem 2016. [DOI: 10.1002/cctc.201600843] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sujoy Rana
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Bhawana Pandey
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Aniruddha Dey
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Rameezul Haque
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Gopalan Rajaraman
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Debabrata Maiti
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
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20
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A new POMOF consisting of [VW 12 ] 4− clusters and metal-organic nanotubes: Synthesis, structure, electrocatalytic and luminescent properties. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.04.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Kaichev VV, Chesalov YA, Saraev AA, Klyushin AY, Knop-Gericke A, Andrushkevich TV, Bukhtiyarov VI. Redox mechanism for selective oxidation of ethanol over monolayer V2O5/TiO2 catalysts. J Catal 2016. [DOI: 10.1016/j.jcat.2016.02.022] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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51V NMR, 17O NMR, and UV–Vis computational studies of new VBPO functional models: Bromide oxidation reaction. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Kaichev VV, Popova GY, Chesalov YA, Saraev AA, Andrushkevich TV, Bukhtiyarov VI. Active component of supported vanadium catalysts in the selective oxidation of methanol. KINETICS AND CATALYSIS 2016. [DOI: 10.1134/s0023158416010043] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Vernekar AA, Sinha D, Srivastava S, Paramasivam PU, D’Silva P, Mugesh G. An antioxidant nanozyme that uncovers the cytoprotective potential of vanadia nanowires. Nat Commun 2014; 5:5301. [DOI: 10.1038/ncomms6301] [Citation(s) in RCA: 257] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 09/18/2014] [Indexed: 12/13/2022] Open
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25
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Maganas D, Roemelt M, Weyhermüller T, Blume R, Hävecker M, Knop-Gericke A, DeBeer S, Schlögl R, Neese F. L-edge X-ray absorption study of mononuclear vanadium complexes and spectral predictions using a restricted open shell configuration interaction ansatz. Phys Chem Chem Phys 2014; 16:264-76. [PMID: 24247594 DOI: 10.1039/c3cp52711e] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A series of mononuclear V((V)), V((IV)) and V((III)) complexes were investigated by V L-edge near edge X-ray absorption fine structure (NEXAFS) spectroscopy. The spectra show significant sensitivity to the vanadium oxidation state and the coordination environment surrounding the vanadium center. The L-edge spectra are interpreted with the aid of the recently developed Density Functional Theory/Restricted Open Shell Configuration Interaction Singles (DFT/ROCIS) method. This method is calibrated for the prediction of vanadium L-edges with different hybrid density functionals and basis sets. For the B3LYP/def2-TZVP(-f) and BHLYP/def2-TZVP(-f) functional/basis-set combinations, good to excellent agreement between calculated and experimental spectra is obtained. A treatment of the spin-orbit coupling interaction to all orders is achieved by quasi-degenerate perturbation theory (QDPT), in conjunction with DFT/ROCIS for the calculation of the molecular multiplets while accounting for dynamic correlation and anisotropic covalency. The physical origin of the observed spectral features is discussed qualitatively and quantitatively in terms of spin multiplicities, magnetic sublevels and individual 2p to 3d core level excitations. This investigation is an important prerequisite for future applications of the DFT/ROCIS method to vanadium L-edge absorption spectroscopy and vanadium-based heterogeneous catalysts.
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Affiliation(s)
- Dimitrios Maganas
- Max-Planck Institut für Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany.
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26
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Wu Z. Multi-wavelength Raman spectroscopy study of supported vanadia catalysts: Structure identification and quantification. CHINESE JOURNAL OF CATALYSIS 2014. [DOI: 10.1016/s1872-2067(14)60082-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Gärtner CA, van Veen AC, Lercher JA. Oxidative Dehydrogenation of Ethane: Common Principles and Mechanistic Aspects. ChemCatChem 2013. [DOI: 10.1002/cctc.201200966] [Citation(s) in RCA: 300] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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28
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Rana S, Haque R, Santosh G, Maiti D. Decarbonylative Halogenation by a Vanadium Complex. Inorg Chem 2013; 52:2927-32. [DOI: 10.1021/ic302611a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Sujoy Rana
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rameezul Haque
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ganji Santosh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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30
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Wang ZC, Yin S, Bernstein ER. Catalytic oxidation of CO by N2O conducted via the neutral oxide cluster couple VO2/VO3. Phys Chem Chem Phys 2013; 15:10429-34. [DOI: 10.1039/c3cp51368h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Orive J, Larrea ES, Fernández de Luis R, Iglesias M, Mesa JL, Rojo T, Arriortua MI. Amine templated open-framework vanadium(iii) phosphites with catalytic properties. Dalton Trans 2013; 42:4500-12. [DOI: 10.1039/c2dt32286b] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Wang ZC, Yin S, Bernstein ER. Gas-Phase Neutral Binary Oxide Clusters: Distribution, Structure, and Reactivity toward CO. J Phys Chem Lett 2012; 3:2415-2419. [PMID: 26292125 DOI: 10.1021/jz3008276] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Neutral binary (vanadium-cobalt) oxide clusters are generated and detected in the gas phase for the first time. Their reactivities toward carbon monoxide (CO) are studied both experimentally and theoretically. Experimental results suggest that neutral VCoO4 can react with CO to generate VCoO3 and CO2. Density functional theory studies show parallel results as well as provide detailed reaction mechanisms.
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Affiliation(s)
- Zhe-Chen Wang
- Department of Chemistry, NSF ERC for Extreme Ultraviolet Science and Technology, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Shi Yin
- Department of Chemistry, NSF ERC for Extreme Ultraviolet Science and Technology, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Elliot R Bernstein
- Department of Chemistry, NSF ERC for Extreme Ultraviolet Science and Technology, Colorado State University, Fort Collins, Colorado 80523, United States
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33
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A Novel 12-Tungstovanadate Doubly-Grafted by Zn-Complexes: Synthesis, Crystal Structure and Properties. J CLUST SCI 2012. [DOI: 10.1007/s10876-012-0511-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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34
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Guo M, Li G, Fan F, Feng Z, Li C. Enhancement of the visible light absorption intensity of microporous vanadosilicate AM-6. Chem Commun (Camb) 2012; 48:11892-4. [DOI: 10.1039/c2cc36083g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Kirillova MV, Kuznetsov ML, Kozlov YN, Shul’pina LS, Kitaygorodskiy A, Pombeiro AJL, Shul’pin GB. Participation of Oligovanadates in Alkane Oxidation with H2O2 Catalyzed by Vanadate Anion in Acidified Acetonitrile: Kinetic and DFT Studies. ACS Catal 2011. [DOI: 10.1021/cs200237m] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Marina V. Kirillova
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade Técnica de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Maxim L. Kuznetsov
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade Técnica de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Yuriy N. Kozlov
- Semenov Institute of Chemical Physics, Russian Academy of Science, Ulitsa Kosigina, dom 4, 119991 Moscow, Russia
| | - Lidia S. Shul’pina
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Ulitsa Vavilova, dom 28, Moscow 119991, Russia
| | | | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade Técnica de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Georgiy B. Shul’pin
- Semenov Institute of Chemical Physics, Russian Academy of Science, Ulitsa Kosigina, dom 4, 119991 Moscow, Russia
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36
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Wang ZC, Dietl N, Kretschmer R, Weiske T, Schlangen M, Schwarz H. Redoxreaktionen des CO/N2O-Systems, katalysiert durch das bimetallische Oxidclusterpaar AlVO3+/AlVO4+. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105691] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Wang ZC, Dietl N, Kretschmer R, Weiske T, Schlangen M, Schwarz H. Catalytic Redox Reactions in the CO/N2O System Mediated by the Bimetallic Oxide-Cluster Couple AlVO3+/AlVO4+. Angew Chem Int Ed Engl 2011; 50:12351-4. [DOI: 10.1002/anie.201105691] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Indexed: 11/06/2022]
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38
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Werncke CG, Limberg C, Knispel C, Mebs S. Surface-Inspired Molecular Vanadium Oxide Catalysts for the Oxidative Dehydrogenation of Alcohols: Evidence for Metal Cooperation and Peroxide Intermediates. Chemistry 2011; 17:12129-35. [DOI: 10.1002/chem.201101442] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Indexed: 11/11/2022]
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39
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Abstract
The current status and likely future directions of complexes of V(V/IV), Cr(III), Mo(VI), W(VI), Zn(II), Cu(II), and Mn(III) as potential oral drugs against type 2 diabetes are reviewed. We propose a unified model of extra- and intracellular mechanisms of anti-diabetic efficacies of V(V/IV), Mo(VI), W(VI), and Cr(III), centred on high-oxidation-state oxido/peroxido species that inhibit protein tyrosine phosphatases (PTPs) involved in insulin signalling. The postulated oxidative mechanism of anti-diabetic activity of Cr(III) via carcinogenic Cr(VI/V) (which adds to safety concerns) is consistent with recent clinical trials on Cr(III) picolinate, where activity was apparent only in patients with poorly controlled diabetes (high oxidative stress), and the correlation between the anti-diabetic activities and ease of oxidation of Cr(III) supplements and their metabolites in vivo. Zn(II) and Cu(II) anti-diabetics act via different mechanisms and are unlikely to be used as specific anti-diabetics due to their diverse and unpredictable biological activities. Hence, future research directions are likely to centre on enhancing the bioavailability and selectivity of V(V/IV), Mo(VI), or W(VI) drugs. The strategy of potentiating circulating insulin with metal ions has distinct therapeutic advantages over interventions that stimulate the release of more insulin, or use insulin mimetics, because of many adverse side-effects of increased levels of insulin, including increased risks of cancer and cardiovascular diseases.
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Affiliation(s)
- Aviva Levina
- School of Chemistry, The University of Sydney, NSW, Australia
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40
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Iwaszuk A, Nolan M. Reactivity of sub 1 nm supported clusters: (TiO2)n clusters supported on rutile TiO2 (110). Phys Chem Chem Phys 2011; 13:4963-73. [DOI: 10.1039/c0cp02030c] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Wachs IE, Roberts CA. Monitoring surface metal oxide catalytic active sites with Raman spectroscopy. Chem Soc Rev 2010; 39:5002-17. [DOI: 10.1039/c0cs00145g] [Citation(s) in RCA: 233] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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