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den Hartog S, Neukermans S, Samanipour M, Ching HV, Breugelmans T, Hubin A, Ustarroz J. Electrocatalysis under a magnetic lens: A combined electrochemistry and electron paramagnetic resonance review. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139704] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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D'Alessandro DM, Usov PM. Spectroelectrochemistry: A Powerful Tool for Studying Fundamental Properties and Emerging Applications of Solid-State Materials Including Metal–Organic Frameworks. Aust J Chem 2021. [DOI: 10.1071/ch20301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Spectroelectrochemistry (SEC) encompasses a broad suite of electroanalytical techniques where electrochemistry is coupled with various spectroscopic methods. This powerful and versatile array of methods is characterised as in situ, where a fundamental property is measured in real time as the redox state is varied through an applied voltage. SEC has a long and rich history and has proved highly valuable for discerning mechanistic aspects of redox reactions that underpin the function of biological, chemical, and physical systems in the solid and solution states, as well as in thin films and even in single molecules. This perspective article highlights the state of the art in solid-state SEC (ultraviolet–visible–near-infrared, infrared, Raman, photoluminescence, electron paramagnetic resonance, and X-ray absorption spectroscopy) relevant to interrogating solid state materials, particularly those in the burgeoning field of metal–organic frameworks (MOFs). Emphasis is on developments in the field over the past 10 years and prospects for application of SEC techniques to probing fundamental aspects of MOFs and MOF-derived materials, along with their emerging applications in next-generation technologies for energy storage and transformation. Along with informing the already expert practitioner of SEC, this article provides some guidance for researchers interested in entering the field.
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Malček M, Kožíšková J, Herich P, Rapta P, Stepanenko I, Arion VB. Formation of metal-radical species upon reduction of late transition metal complexes with heteroleptic ligands: an experimental and theoretical study. NEW J CHEM 2020. [DOI: 10.1039/d0nj02447c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Three novel transition metal complexes with selenadiazoloquinolones as potential broad spectrum antibiotics in clinical praxis.
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Affiliation(s)
- Michal Malček
- Institute of Physical Chemistry and Chemical Physics
- Faculty of Chemical and Food Technology
- Slovak University of Technology in Bratislava
- SK-812 37 Bratislava
- Slovak Republic
| | - Júlia Kožíšková
- Institute of Physical Chemistry and Chemical Physics
- Faculty of Chemical and Food Technology
- Slovak University of Technology in Bratislava
- SK-812 37 Bratislava
- Slovak Republic
| | - Peter Herich
- Institute of Physical Chemistry and Chemical Physics
- Faculty of Chemical and Food Technology
- Slovak University of Technology in Bratislava
- SK-812 37 Bratislava
- Slovak Republic
| | - Peter Rapta
- Institute of Physical Chemistry and Chemical Physics
- Faculty of Chemical and Food Technology
- Slovak University of Technology in Bratislava
- SK-812 37 Bratislava
- Slovak Republic
| | - Iryna Stepanenko
- Institute of Inorganic Chemistry of the University of Vienna
- A1090 Vienna
- Austria
| | - Vladimir B. Arion
- Institute of Inorganic Chemistry of the University of Vienna
- A1090 Vienna
- Austria
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Darvasiová D, Šoral M, Puškárová I, Dvoranová D, Vénosová B, Bučinský L, Zalibera M, Dujnič V, Dobrov A, Schwalbe M, Arion VB, Rapta P. Spectroelectrochemical, photochemical and theoretical study of octaazamacrocyclic nickel(II) complexes exhibiting unusual solvent-dependent deprotonation of methylene group. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.135006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Nemes CT, Swierk JR, Schmuttenmaer CA. A Terahertz-Transparent Electrochemical Cell for In Situ Terahertz Spectroelectrochemistry. Anal Chem 2018. [DOI: 10.1021/acs.analchem.7b04204] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Coleen T. Nemes
- Department of Chemistry and Energy Sciences Institute, Yale University, 225 Prospect Street, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
| | - John R. Swierk
- Department of Chemistry and Energy Sciences Institute, Yale University, 225 Prospect Street, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
| | - Charles A. Schmuttenmaer
- Department of Chemistry and Energy Sciences Institute, Yale University, 225 Prospect Street, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
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Garrett BR, Polen SM, Pimplikar M, Hadad CM, Wu Y. Anion-Redox Mechanism of MoO(S 2) 2(2,2'-bipyridine) for Electrocatalytic Hydrogen Production. J Am Chem Soc 2017; 139:4342-4345. [PMID: 28296392 DOI: 10.1021/jacs.7b01350] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Redox processes of molybdenum-sulfide (Mo-S) compounds are important in the function of materials for various applications from electrocatalysts for the hydrogen evolution reaction (HER) to cathode materials for batteries. Our group has recently described a series of Mo-S molecular HER catalysts based on a MoO(S2)2L2 structural motif. Herein, reductive pathways of MoO(S2)2bpy (Mo-bpy) (bpy = 2,2'-bipyridine) are presented from both experimental and theoretical studies. We tracked chemical reduction of Mo-bpy with UV-vis spectroscopy using sodium napthalenide (NaNpth) as the reducing agent and found that Mo-bpy undergoes anionic persulfide reduction to form the tetragonal Mo(VI) complex [MoOS3]2-. We also identified silver mercury amalgam as an inert working electrode (WE) for spectroectrochemical (SEC) studies. UV-vis spectra in the presence of trifluoroacetic acid with an applied potential confirmed that Mo-bpy maintains its structure during catalytic cycling. Finally, theoretical catalytic reaction pathways were explored, revealing that Mo=O may function as a proton relay. This finding together with the observed anion reduction as the redox center is of broad interest for amorphous Mo-S (a-MoSx) electrocatalytic materials and anion-redox chalcogel battery materials.
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Affiliation(s)
- Benjamin R Garrett
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Shane M Polen
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Maneesha Pimplikar
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Christopher M Hadad
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Yiying Wu
- Department of Chemistry and Biochemistry, The Ohio State University , 100 West 18th Avenue, Columbus, Ohio 43210, United States
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Branowska D, Olender E, Wysocki W, Karczmarzyk Z, Bancerz I, Ledwon P, Lapkowski M, Mirosław B, Urbańczyk-Lipkowska Z, Kalicki P. Synthesis and electrochemical characterization of oligothiophenes with 1,2,4-triazine and 5,5′-bi-1,2,4-triazine as strong electron acceptor units. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.08.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jantová S, Mrvová N, Hudec R, Sedlák J, Pánik M, Milata V. Pro-apoptotic effect of new quinolone 7- ethyl 9-ethyl-6-oxo-6,9-dihydro[1,2,5]selenadiazolo [3,4-h]quinoline-7-carboxylate on cervical cancer cell line HeLa alone/with UVA irradiation. Toxicol In Vitro 2016; 33:35-44. [DOI: 10.1016/j.tiv.2016.02.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/10/2016] [Accepted: 02/21/2016] [Indexed: 01/24/2023]
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Kahlfuss C, Métay E, Duclos MC, Lemaire M, Milet A, Saint-Aman E, Bucher C. Chemically and Electrochemically Triggered Assembly of Viologen Radicals: Towards Multiaddressable Molecular Switches. Chemistry 2014; 21:2090-106. [DOI: 10.1002/chem.201405157] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Indexed: 12/23/2022]
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Radical anions of quinoxalines (an in situ electron paramagnetic resonance spectroelectrochemical and theoretical study). J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2625-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Staško A, Milata V, Barbieriková Z, Brezová V. Oxidation of quinolones with peracids (an in situ EPR study). MAGNETIC RESONANCE IN CHEMISTRY : MRC 2014; 52:22-26. [PMID: 24194257 DOI: 10.1002/mrc.4029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 09/02/2013] [Accepted: 10/10/2013] [Indexed: 06/02/2023]
Abstract
4-Oxoquinoline derivatives (quinolones) represent heterocyclic compounds with a variety of biological activities, along with interesting chemical reactivity. The quinolone derivatives possessing secondary amino hydrogen at the nitrogen of the enaminone system are oxidized with 3-chloroperbenzoic acid to nitroxide radicals in the primary step while maintaining their 4-pyridone ring. Otherwise, N-methyl substituted quinolones also form nitroxide radicals coupled with the opening of the 4-pyridone ring in a gradual oxidation of the methyl group via the nitrone-nitroxide spin-adduct cycle. This was confirmed in an analogous oxidation using N,N-dimethylaniline as a model compound. N-Ethyl quinolones in contrast to its N-methyl analog form only one nitroxide radical without a further degradation.
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Affiliation(s)
- Andrej Staško
- Faculty of Chemical and Food Technology, Institute of Physical Chemistry and Chemical Physics, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37, Bratislava, Slovak Republic
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Barbieriková Z, Bella M, Sekeráková Ľ, Lietava J, Bobeničová M, Dvoranová D, Milata V, Sádecká J, Topoľská D, Heizer T, Hudec R, Czímerová A, Jantová S, Brezová V. Spectroscopic characterization, photoinduced processes and cytotoxic properties of substituted N
-ethyl selenadiazoloquinolones. J PHYS ORG CHEM 2013. [DOI: 10.1002/poc.3133] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Zuzana Barbieriková
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Maroš Bella
- Institute of Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 SK-845 38 Bratislava Slovak Republic
| | - Ľudmila Sekeráková
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
- Institute of Inorganic Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 SK-845 36 Bratislava Slovak Republic
| | - Jozef Lietava
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Miroslava Bobeničová
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Dana Dvoranová
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Viktor Milata
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Jana Sádecká
- Institute of Analytical Chemistry, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Dominika Topoľská
- Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Tomáš Heizer
- Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Roman Hudec
- Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Adriana Czímerová
- Institute of Inorganic Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 SK-845 36 Bratislava Slovak Republic
| | - Soňa Jantová
- Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
| | - Vlasta Brezová
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Radlinského 9 SK-812 37 Bratislava Slovak Republic
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