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Martins JB, de Moura CEV, Goldsztejn G, Travnikova O, Guillemin R, Ismail I, Journel L, Koulentianos D, Barbatti M, Lago AF, Céolin D, Rocco MLM, Püttner R, Piancastelli MN, Simon M, Marchenko T. Electron delocalisation in conjugated sulfur heterocycles probed by resonant Auger spectroscopy. Phys Chem Chem Phys 2022; 24:8477-8487. [PMID: 35404373 DOI: 10.1039/d1cp05910f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We propose a novel approach for an indirect probing of conjugation and hyperconjugation in core-excited molecules using resonant Auger spectroscopy. Our work demonstrates that the changes in the electronic structure of thiophene (C4H4S) and thiazole (C3H3NS), occurring in the process of resonant sulfur K-shell excitation and Auger decay, affect the stabilisation energy resulting from π-conjugation and hyperconjugation. The variations in the stabilisation energy manifest themselves in the resonant S KL2,3L2,3 Auger spectra of thiophene and thiazole. The comparison of the results obtained for the conjugated molecules and for thiolane (C4H8S), the saturated analogue of thiophene, has been performed. The experimental observations are interpreted using high-level quantum-mechanical calculations and the natural bond orbital analysis.
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Affiliation(s)
- Jessica B Martins
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France.
| | - Carlos E V de Moura
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA.,Aix-Marseille University, CNRS, ICR, Marseille, France
| | - Gildas Goldsztejn
- Université Paris-Saclay, Institut des Sciences Moléculaires d'Orsay ISMO, UMR CNRS 8214, F-91405 Orsay, France
| | - Oksana Travnikova
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France. .,Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette Cedex, France
| | - Renaud Guillemin
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France. .,Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette Cedex, France
| | - Iyas Ismail
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France. .,Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette Cedex, France
| | - Loïc Journel
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France. .,Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette Cedex, France
| | - Dimitrios Koulentianos
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France. .,Department of Physics, University of Gothenburg, Origovägen 6B, SE-412 96 Gothenburg, Sweden
| | - Mario Barbatti
- Aix-Marseille University, CNRS, ICR, Marseille, France.,Institut Universitaire de France, 75231 Paris, France
| | - Alexsandre F Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), 09210-580, Santo André, São Paulo, Brazil
| | - Denis Céolin
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette Cedex, France
| | - Maria Luiza M Rocco
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil
| | - Ralph Püttner
- Fachbereich Physik, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Maria Novella Piancastelli
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France. .,Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Marc Simon
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France. .,Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette Cedex, France
| | - Tatiana Marchenko
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France. .,Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette Cedex, France
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Pierce CE, Furman OS, Nicholas SL, Wasik JC, Gionfriddo CM, Wymore AM, Sebestyen SD, Kolka RK, Mitchell CPJ, Griffiths NA, Elias DA, Nater EA, Toner BM. Role of Ester Sulfate and Organic Disulfide in Mercury Methylation in Peatland Soils. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:1433-1444. [PMID: 34979084 DOI: 10.1021/acs.est.1c04662] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We examined the composition and spatial correlation of sulfur and mercury pools in peatland soil profiles by measuring sulfur speciation by 1s X-ray absorption near-edge structure spectrocopy and mercury concentrations by cold vapor atomic fluorescence spectroscopy. Also investigated were the methylation/demethylation rate constants and the presence of hgcAB genes with depth. Methylmercury (MeHg) concentration and organic disulfide were spatially correlated and had a significant positive correlation (p < 0.05). This finding is consistent with these species being products of dissimilatory sulfate reduction. Conversely, a significant negative correlation between organic monosulfides and MeHg was observed, which is consistent with a reduction in Hg(II) bioavailability via complexation reactions. Finally, a significant positive correlation between ester sulfate and instantaneous methylation rate constants was observed, which is consistent with ester sulfate being a substrate for mercury methylation via dissimilatory sulfate reduction. Our findings point to the importance of organic sulfur species in mercury methylation processes, as substrates and products, as well as potential inhibitors of Hg(II) bioavailability. For a peatland system with sub-μmol L-1 porewater concentrations of sulfate and hydrogen sulfide, our findings indicate that the solid-phase sulfur pools, which have a much larger sulfur concentration range, may be accessible to microbial activity or exchanging with the porewater.
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Affiliation(s)
- Caroline E Pierce
- Department of Soil, Water, and Climate, University of Minnesota, St. Paul, Minnesota 55108, United States
| | - Olha S Furman
- Department of Soil, Water, and Climate, University of Minnesota, St. Paul, Minnesota 55108, United States
| | - Sarah L Nicholas
- Department of Soil, Water, and Climate, University of Minnesota, St. Paul, Minnesota 55108, United States
| | - Jill Coleman Wasik
- Plant and Earth Science Department, University of Wisconsin River Falls, River Falls, Wisconsin 54022, United States
| | - Caitlin M Gionfriddo
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Ann M Wymore
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Stephen D Sebestyen
- USDA Forest Service, Northern Research Station, Grand Rapids, Minnesota 55744, United States
| | - Randall K Kolka
- USDA Forest Service, Northern Research Station, Grand Rapids, Minnesota 55744, United States
| | - Carl P J Mitchell
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Scarborough, Ontario M1C 1A4, Canada
| | - Natalie A Griffiths
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Dwayne A Elias
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Edward A Nater
- Department of Soil, Water, and Climate, University of Minnesota, St. Paul, Minnesota 55108, United States
| | - Brandy M Toner
- Department of Soil, Water, and Climate, University of Minnesota, St. Paul, Minnesota 55108, United States
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3
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Vogt LI, Dolgova NV, Cotelesage JJH, Barney M, Sharifi S, Pickering IJ, George GN. Sulfur K-Edge X-ray Absorption Spectroscopy of Aryl and Aryl–Alkyl Sulfides. J Phys Chem A 2019; 123:2861-2866. [DOI: 10.1021/acs.jpca.9b00908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Linda I. Vogt
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Natalia V. Dolgova
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Julien J. H. Cotelesage
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Monica Barney
- Chevron Energy Technology Company, Richmond, California 94802, United States
| | - Samin Sharifi
- Chevron Energy Technology Company, Richmond, California 94802, United States
| | - Ingrid J. Pickering
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5C9, Canada
| | - Graham N. George
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5C9, Canada
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5
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Fogarty RM, Matthews RP, Clough MT, Ashworth CR, Brandt-Talbot A, Corbett PJ, Palgrave RG, Bourne RA, Chamberlain TW, Vander Hoogerstraete T, Thompson PBJ, Hunt PA, Besley NA, Lovelock KRJ. NEXAFS spectroscopy of ionic liquids: experiments versus calculations. Phys Chem Chem Phys 2017; 19:31156-31167. [DOI: 10.1039/c7cp07143d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Experimental N 1s and S 1s NEXAFS spectra are compared to TD-DFT calculated spectra for 12 ionic liquids.
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Affiliation(s)
| | | | | | | | | | - Paul J. Corbett
- Department of Chemical Engineering, Imperial College London
- UK
| | | | - Richard A. Bourne
- School of Chemical and Process Engineering
- University of Leeds
- UK
- Institute of Process Research and Development
- School of Chemistry
| | - Thomas W. Chamberlain
- Institute of Process Research and Development
- School of Chemistry
- University of Leeds
- UK
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6
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George GN, Hackett MJ, Sansone M, Gorbaty ML, Kelemen SR, Prince RC, Harris HH, Pickering IJ. Long-range chemical sensitivity in the sulfur K-edge X-ray absorption spectra of substituted thiophenes. J Phys Chem A 2014; 118:7796-802. [PMID: 25116792 PMCID: PMC4161161 DOI: 10.1021/jp505766f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Thiophenes are the simplest aromatic
sulfur-containing compounds
and are stable and widespread in fossil fuels. Regulation of sulfur
levels in fuels and emissions has become and continues to be ever
more stringent as part of governments’ efforts to address negative
environmental impacts of sulfur dioxide. In turn, more effective removal
methods are continually being sought. In a chemical sense, thiophenes
are somewhat obdurate and hence their removal from fossil fuels poses
problems for the industrial chemist. Sulfur K-edge X-ray absorption
spectroscopy provides key information on thiophenic components in
fuels. Here we present a systematic study of the spectroscopic sensitivity
to chemical modifications of the thiophene system. We conclude that
while the utility of sulfur K-edge X-ray absorption spectra in understanding
the chemical composition of sulfur-containing fossil fuels has already
been demonstrated, care must be exercised in interpreting these spectra
because the assumption of an invariant spectrum for thiophenic forms
may not always be valid.
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Affiliation(s)
- Graham N George
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan , Saskatoon, Saskatchewan S7N 5E2, Canada
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