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Puchán Sánchez D, Josse P, Plassais N, Park G, Khan Y, Park Y, Seinfeld M, Guyard A, Allain M, Gohier F, Khrouz L, Lungerich D, Ahn HS, Walker B, Monnereau C, Cabanetos C, Le Bahers T. Driving Triplet State Population in Benzothioxanthene Imide Dyes: Let's twist! Chemistry 2024; 30:e202400191. [PMID: 38498874 DOI: 10.1002/chem.202400191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/14/2024] [Accepted: 03/18/2024] [Indexed: 03/20/2024]
Abstract
Controlling the formation of photoexcited triplet states is critical for many (photo)chemical and physical applications. Here, we demonstrate that a permanent out-of-plane distortion of the benzothioxanthene imide (BTI) dye promotes intersystem crossing by increasing spin-orbit coupling. This manipulation was achieved through a subtle chemical modification, specifically the bay-area methylation. Consequently, this simple yet efficient approach expands the catalog of known molecular engineering strategies for synthesizing heavy atom-free, dual redox-active, yet still emissive and synthetically accessible photosensitizers.
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Affiliation(s)
| | - Pierre Josse
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000, Angers, France
| | - Nathan Plassais
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000, Angers, France
- Department of Physics, University of Seoul, 02504, Seoul, Republic of Korea
| | - Geonwoo Park
- Yonsei University, 50 Yonsei-ro, Seodaemun-gu, 03722, Seoul, Republic of Korea
| | - Yeasin Khan
- Department of Chemistry, Kyung Hee University, 730-701 Seoul, Republic of Korea
| | - Yejoo Park
- Department of Chemistry, Kyung Hee University, 730-701 Seoul, Republic of Korea
| | - Mathilde Seinfeld
- ENS de Lyon, CNRS, Laboratoire de Chimie UMR 5182, F-69342 L, yon, France E-mail
| | - Antoine Guyard
- Yonsei University, 50 Yonsei-ro, Seodaemun-gu, 03722, Seoul, Republic of Korea
| | - Magali Allain
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000, Angers, France
| | - Frédéric Gohier
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000, Angers, France
| | - Lhoussain Khrouz
- ENS de Lyon, CNRS, Laboratoire de Chimie UMR 5182, F-69342 L, yon, France E-mail
| | - Dominik Lungerich
- Center for Nanomedicine, Institute for Basic Science (IBS), IBS Hall, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Department of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Hyun S Ahn
- Yonsei University, 50 Yonsei-ro, Seodaemun-gu, 03722, Seoul, Republic of Korea
| | - Bright Walker
- Department of Chemistry, Kyung Hee University, 730-701 Seoul, Republic of Korea
| | - Cyrille Monnereau
- ENS de Lyon, CNRS, Laboratoire de Chimie UMR 5182, F-69342 L, yon, France E-mail
| | - Clément Cabanetos
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000, Angers, France
- 2BFUEL, IRL CNRS 2002, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, 03722, Seoul, Republic of Korea
| | - Tangui Le Bahers
- ENS de Lyon, CNRS, Laboratoire de Chimie UMR 5182, F-69342 L, yon, France E-mail
- Institut Universitaire de France, 5 rue Descartes, 75005, Paris, France
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Kechiche A, Al Shehimy S, Khrouz L, Monnereau C, Bucher C, Parola S, Bessmertnykh-Lemeune A, Rousselin Y, Cheprakov AV, Nasri H. Phosphonate-substituted porphyrins as efficient, cost-effective and reusable photocatalysts. Dalton Trans 2024; 53:7498-7516. [PMID: 38596893 DOI: 10.1039/d4dt00418c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Recent advances in visible light photocatalysis represent a significant stride towards sustainable catalytic chemistry. However, its successful implementation in fine chemical production remains challenging and requires careful optimization of available photocatalysts. Our work aims to structurally modify bioinspired porphyrin catalysts, addressing issues related to their laborious synthesis and low solubility, with the goal of increasing their efficiency and developing reusable catalytic systems. We have demonstrated the catalytic potential of readily available meso-tetrakis[4-(diethoxyphosphoryl)phenyl]porphyrins (M(TPPP)). Novel metal (Pd(II), Co(II) and In(III)) complexes with this ligand were prepared in good yields. These chromophores were characterized in solution using spectroscopic (NMR, UV-vis, fluorescence) and electrochemical methods. The introduction of phosphonate groups on the phenyl substituents of meso-tetraphenylporphyrins (M(TPP)) improves solubility in polar organic solvents without significantly altering the photophysical properties and photostability of complexes. This structural modification also leads to easier reductions and harder oxidations of the macrocycle for all investigated complexes compared to the corresponding TPP derivatives. The free base porphyrin, zinc(II), palladium(II), and indium(III) complexes were studied as photocatalysts for oxidation of sulfides to sulfoxides using molecular oxygen as a terminal oxidant. Both dialkyl and alkyl aryl sulfides were quantitatively transformed into sulfoxides under blue LED irradiation in the acetonitrile-water mixture (10 : 1 v/v) with a low loading (0.005-0.05 mol%) of porphyrin photocatalysts, where H2(TPPP) and Pd(TPPP) were found to be the most efficient. The reaction mechanism was studied using photoluminescence and EPR spectroscopies. Then, to access reusable catalysts, water-soluble derivatives bearing phosphonic acid groups, H2(TPPP-A) and Pd(TPPP-A), were prepared in high yields. These compounds were characterized using spectroscopic methods. Single-crystal X-ray diffraction analysis of Pd(TPPP-A) reveals that the complex forms a 3D hydrogen-bonded organic framework (HOF) in the solid state. Both H2(TPPP-A) and Pd(TPPP-A) were found to catalyze the photooxidation of sulfides by molecular oxygen in the acetonitrile-water mixture (1 : 1 v/v), while only Pd(TPPP-A) resulted in selective production of sulfoxides. The complex Pd(TPPP-A) was easily recovered through extraction in the aqueous phase and successfully reused in five consecutive cycles of the sulfoxidation reaction.
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Affiliation(s)
- Azhar Kechiche
- ENS de Lyon, UMR 5182, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, École Normale Supérieure de Lyon, 46 allée d'Italie, 69342 Lyon, France.
| | - Shaymaa Al Shehimy
- ENS de Lyon, UMR 5182, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, École Normale Supérieure de Lyon, 46 allée d'Italie, 69342 Lyon, France.
| | - Lhoussain Khrouz
- ENS de Lyon, UMR 5182, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, École Normale Supérieure de Lyon, 46 allée d'Italie, 69342 Lyon, France.
| | - Cyrille Monnereau
- ENS de Lyon, UMR 5182, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, École Normale Supérieure de Lyon, 46 allée d'Italie, 69342 Lyon, France.
| | - Christophe Bucher
- ENS de Lyon, UMR 5182, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, École Normale Supérieure de Lyon, 46 allée d'Italie, 69342 Lyon, France.
| | - Stephane Parola
- ENS de Lyon, UMR 5182, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, École Normale Supérieure de Lyon, 46 allée d'Italie, 69342 Lyon, France.
| | - Alla Bessmertnykh-Lemeune
- ENS de Lyon, UMR 5182, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, École Normale Supérieure de Lyon, 46 allée d'Italie, 69342 Lyon, France.
| | - Yoann Rousselin
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, Université Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Andrey V Cheprakov
- Lomonosov Moscow State University, Department of Chemistry, 1-3, Leninskie Gory, Moscow, 119991, Russia
| | - Habib Nasri
- University of Monastir, Laboratory of Physical Chemistry of Materials (LR01ES19), Faculty of Sciences of Monastir, Avenue of the Environment, 5019 Monastir, Tunisia
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Soussi K, Jeanneau E, Maldivi P, Clémancey M, Latour JM, Khrouz L, Lorentz C, Daniele S, Mishra S. N-Alkyl substituted triazenide-bridged homoleptic iron(II) dimers with an exceptionally short Fe-Fe bond. Dalton Trans 2024; 53:1439-1444. [PMID: 38193200 DOI: 10.1039/d3dt03132b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Dinuclear transition metal complexes with direct metal-metal interactions have the potential to generate unique reactivities and properties. Using asymmetric triazine ligands HN3tBuR (R = Et, iPr, nBu) featuring different alkyl substituents at 1,3-N centers, we report here the first rational synthesis of 'tetragonal lantern' type Fe(II) triazenides [Fe2(N3tBuR)4] [R = Et (1), iPr (2), nBu (3)] having an exceptionally short Fe-Fe distance (2.167-2.174 Å). Unlike the previously reported lantern structures with related amidinate or guanidinate ligands, highly air-sensitive 1-3 show a lower spin ground state, as indicated by Mössbauer, 1H NMR and DFT studies.
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Affiliation(s)
- Khaled Soussi
- Université Claude Bernard Lyon 1, CNRS, UMR 5256, Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), 2 avenue Albert Einstein, 69626 Villeurbanne, France.
| | - Erwann Jeanneau
- Université Claude Bernard Lyon 1, Centre de Diffractométrie Henri Longchambon, 5 rue de La Doua, 69100 Villeurbanne, France
| | - Pascale Maldivi
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, DIESE, SyMMES, F-38000 Grenoble, France
| | - Martin Clémancey
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, DIESE, LCBM, pmb, F-38000 Grenoble, France
| | - Jean-Marc Latour
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, DIESE, LCBM, pmb, F-38000 Grenoble, France
| | - Lhoussain Khrouz
- Université de Lyon, ENS de Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, F69342, Lyon, France
| | - Chantal Lorentz
- Université Claude Bernard Lyon 1, CNRS, UMR 5256, Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), 2 avenue Albert Einstein, 69626 Villeurbanne, France.
| | - Stéphane Daniele
- Université Claude Bernard Lyon 1, CNRS-UMR 5218, CP2M-ESCPE Lyon, 43 Bd du 11 Nov. 1978, 69616, Villeurbanne, France.
| | - Shashank Mishra
- Université Claude Bernard Lyon 1, CNRS, UMR 5256, Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), 2 avenue Albert Einstein, 69626 Villeurbanne, France.
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4
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Mangin LP, Albkuri YM, Ovens JS, Al Shehimy S, Khrouz L, Steinmann S, Bucher C, Baker RT. Electron-Triggered Imine Coupling: Synthesis and Characterization of Three Redox States (0,-1,-2) of a Ni(N 2 S 2 ) Complex. Chemistry 2024; 30:e202302714. [PMID: 37983723 DOI: 10.1002/chem.202302714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Indexed: 11/22/2023]
Abstract
Metal imine-thiolate complexes, M(NS)2 are known to undergo imine C-C bond formation to give M(N2 S2 ) complexes (M=Co, Ni) containing a redox-active ligand. Although these transfor-mations are not typically quantitative, we demonstrate here that the one-electron reduction of a related Ni bis(imine-thiolate) complex affords the corresponding paramagnetic [Ni(N2 S2 )]- anion (2⋅- ) exclusively; subsequent oxidation with [Cp2 Fe]BF4 then affords a high yield of neutral 2 (Cp=η5 -cyclopentadienyl). Moreover, electrochemical studies indicate that a second one-electron reduction affords the diamagnetic dianion. Both anionic products were isolated and characterized by SC-XRD and their electronic structures were investigated by UV-vis spectro-electrochemistry, EPR and NMR spectroscopy, and DFT studies. These studies show that reduction proceeds primarily on the ligand, with (N2 S2 )4- containing both thiolate and ring-delocalized anions.
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Affiliation(s)
- Loïc P Mangin
- Department of Chemistry and Biomolecular Sciences and, Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Yahya M Albkuri
- Department of Chemistry and Biomolecular Sciences and, Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Jeffrey S Ovens
- Faculty of Science, University of Ottawa, 150 Louis Pasteur Pvt., Ottawa, Ontario, K1N 6N5, Canada
| | - Shaymaa Al Shehimy
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342, Lyon, France
| | - Lhoussain Khrouz
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342, Lyon, France
| | - Stephan Steinmann
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342, Lyon, France
| | - Christophe Bucher
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342, Lyon, France
| | - R Tom Baker
- Department of Chemistry and Biomolecular Sciences and, Centre for Catalysis Research and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
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5
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De S, Mouchaham G, Liu F, Affram M, Abeykoon B, Guillou N, Jeanneau E, Grenèche JM, Khrouz L, Martineau-Corcos C, Boudjema L, Salles F, Salcedo-Abraira P, Valente G, Souto M, Fateeva A, Devic T. Expanding the horizons of porphyrin metal-organic frameworks via catecholate coordination: exploring structural diversity, material stability and redox properties. J Mater Chem A Mater 2023; 11:25465-25483. [PMID: 38037625 PMCID: PMC10683559 DOI: 10.1039/d3ta04490d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023]
Abstract
Porphyrin based Metal-Organic Frameworks (MOFs) have generated high interest because of their unique combination of light absorption, electron transfer and guest adsorption/desorption properties. In this study, we expand the range of available MOF materials by focusing on the seldom studied porphyrin ligand H10TcatPP, functionalized with tetracatecholate coordinating groups. A systematic evaluation of its reactivity with M(iii) cations (Al, Fe, and In) led to the synthesis and isolation of three novel MOF phases. Through a comprehensive characterization approach involving single crystal and powder synchrotron X-ray diffraction (XRD) in combination with the local information gained from spectroscopic techniques, we elucidated the structural features of the solids, which are all based on different inorganic secondary building units (SBUs). All the synthesized MOFs demonstrate an accessible porosity, with one of them presenting mesopores and the highest reported surface area to date for a porphyrin catecholate MOF (>2000 m2 g-1). Eventually, the redox activity of these solids was investigated in a half-cell vs. Li with the aim of evaluating their potential as electrode positive materials for electrochemical energy storage. One of the solids displayed reversibility during cycling at a rather high potential (∼3.4 V vs. Li+/Li), confirming the interest of redox active phenolate ligands for applications involving electron transfer. Our findings expand the library of porphyrin-based MOFs and highlight the potential of phenolate ligands for advancing the field of MOFs for energy storage materials.
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Affiliation(s)
- Siddhartha De
- Laboratoire des Multimatériaux et Interfaces, Université Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5615 F-69622 Villeurbanne France
| | - Georges Mouchaham
- Institut Lavoisier de Versailles, UMR 8180 CNRS UVSQ, Université Paris-Saclay 45 Avenue des Etats-Unis 78035 Versailles France
| | - Fangbing Liu
- Laboratoire des Multimatériaux et Interfaces, Université Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5615 F-69622 Villeurbanne France
| | - Maame Affram
- Institut Lavoisier de Versailles, UMR 8180 CNRS UVSQ, Université Paris-Saclay 45 Avenue des Etats-Unis 78035 Versailles France
| | - Brian Abeykoon
- Laboratoire des Multimatériaux et Interfaces, Université Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5615 F-69622 Villeurbanne France
| | - Nathalie Guillou
- Institut Lavoisier de Versailles, UMR 8180 CNRS UVSQ, Université Paris-Saclay 45 Avenue des Etats-Unis 78035 Versailles France
| | - Erwann Jeanneau
- Laboratoire des Multimatériaux et Interfaces, Université Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5615 F-69622 Villeurbanne France
| | - Jean-Marc Grenèche
- Institut des Molécules et Matériaux du Mans, IMMM UMR CNRS 6283, Le Mans Université Le Mans Cedex 9 F-72085 France
| | - Lhoussain Khrouz
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182 F-69342 Lyon France
| | - Charlotte Martineau-Corcos
- Institut Lavoisier de Versailles, UMR 8180 CNRS UVSQ, Université Paris-Saclay 45 Avenue des Etats-Unis 78035 Versailles France
| | | | | | - Pablo Salcedo-Abraira
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN F-44000 Nantes France
| | - Gonçalo Valente
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro Aveiro 3810-393 Portugal
| | - Manuel Souto
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro Aveiro 3810-393 Portugal
| | - Alexandra Fateeva
- Laboratoire des Multimatériaux et Interfaces, Université Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5615 F-69622 Villeurbanne France
| | - Thomas Devic
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN F-44000 Nantes France
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Deiana M, Andrés Castán J, Josse P, Kahsay A, Sánchez D, Morice K, Gillet N, Ravindranath R, Patel A, Sengupta P, Obi I, Rodriguez-Marquez E, Khrouz L, Dumont E, Abad Galán L, Allain M, Walker B, Ahn HS, Maury O, Blanchard P, Le Bahers T, Öhlund D, von Hofsten J, Monnereau C, Cabanetos C, Sabouri N. A new G-quadruplex-specific photosensitizer inducing genome instability in cancer cells by triggering oxidative DNA damage and impeding replication fork progression. Nucleic Acids Res 2023; 51:6264-6285. [PMID: 37191066 PMCID: PMC10325911 DOI: 10.1093/nar/gkad365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 03/31/2023] [Accepted: 04/26/2023] [Indexed: 05/17/2023] Open
Abstract
Photodynamic therapy (PDT) ideally relies on the administration, selective accumulation and photoactivation of a photosensitizer (PS) into diseased tissues. In this context, we report a new heavy-atom-free fluorescent G-quadruplex (G4) DNA-binding PS, named DBI. We reveal by fluorescence microscopy that DBI preferentially localizes in intraluminal vesicles (ILVs), precursors of exosomes, which are key components of cancer cell proliferation. Moreover, purified exosomal DNA was recognized by a G4-specific antibody, thus highlighting the presence of such G4-forming sequences in the vesicles. Despite the absence of fluorescence signal from DBI in nuclei, light-irradiated DBI-treated cells generated reactive oxygen species (ROS), triggering a 3-fold increase of nuclear G4 foci, slowing fork progression and elevated levels of both DNA base damage, 8-oxoguanine, and double-stranded DNA breaks. Consequently, DBI was found to exert significant phototoxic effects (at nanomolar scale) toward cancer cell lines and tumor organoids. Furthermore, in vivo testing reveals that photoactivation of DBI induces not only G4 formation and DNA damage but also apoptosis in zebrafish, specifically in the area where DBI had accumulated. Collectively, this approach shows significant promise for image-guided PDT.
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Affiliation(s)
- Marco Deiana
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87, Umeå, Sweden
| | | | - Pierre Josse
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Abraha Kahsay
- Department of Integrative Medical Biology, Umeå University, SE-901 87, Umeå, Sweden
| | | | - Korentin Morice
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Natacha Gillet
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | - Ranjitha Ravindranath
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
- Indian Institute for Science Education and Research (IISER), Tirupati-517507, India
| | - Ankit Kumar Patel
- Department of Radiation Sciences/Oncology, Umeå University, SE-901 87, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, SE-901 87, Umeå, Sweden
| | - Pallabi Sengupta
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87, Umeå, Sweden
| | - Ikenna Obi
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87, Umeå, Sweden
| | | | - Lhoussain Khrouz
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | - Elise Dumont
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
- Institut Universitaire de France, 5 rue Descartes, 75005 Paris, France
| | - Laura Abad Galán
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | - Magali Allain
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Bright Walker
- Department of Chemistry, Kyung Hee University, Seoul, 02447, South Korea
| | - Hyun Seo Ahn
- Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - Olivier Maury
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | | | - Tangui Le Bahers
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
- Institut Universitaire de France, 5 rue Descartes, 75005 Paris, France
| | - Daniel Öhlund
- Department of Radiation Sciences/Oncology, Umeå University, SE-901 87, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, SE-901 87, Umeå, Sweden
| | - Jonas von Hofsten
- Department of Integrative Medical Biology, Umeå University, SE-901 87, Umeå, Sweden
| | - Cyrille Monnereau
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | - Clément Cabanetos
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
- Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, South Korea
- Building Blocks for FUture Electronics Laboratory (2BFUEL), IRL CNRS 2002, Yonsei University, Seoul, South Korea
| | - Nasim Sabouri
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87, Umeå, Sweden
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7
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Lancel M, Zimberlin P, Gomez C, Port M, Khrouz L, Monnereau C, Amara Z. Self-Sensitized Photooxidation of Naphthols to Naphthoquinones and the Use of Naphthoquinones as Visible Light Photocatalysts in Batch and Continuous Flow Reactors. J Org Chem 2023; 88:6498-6508. [PMID: 36988615 DOI: 10.1021/acs.joc.2c03014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Visible light photooxidation of naphthols to produce naphthoquinones, such as the natural product juglone, has been known for decades and has been widely utilized to benchmark the performances of a variety of photocatalytic systems. We discovered that these transformations can occur without the help of a photocatalyst and, even more intriguingly, that the photocatatyst-free process provides higher yields compared to control experiments utilizing state-of-the-art photocatalysts. In addition, we demonstrate that naphthoquinones and their corresponding naphthol precursors can act as alternatives to commonly used organic and organometallic photocatalysts with applications to challenging targets, such as the antimalarial drug artemisinin. This approach was finally transposed in continuous flow reactors where high photocatalyst stability and process efficiency are demonstrated with a 23× improvement in the space-time yield.
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Affiliation(s)
- Maxime Lancel
- Equipe Chimie Moléculaire, Laboratoire de Génomique, Bioinformatique et Chimie Moléculaire, (GBCM), EA 7528, Conservatoire National des Arts et Métiers, Hautes Écoles Sorbonne Arts et Métiers (HESAM) Université, Paris 2 rue Conté, 75003, France
| | - Pierre Zimberlin
- Equipe Chimie Moléculaire, Laboratoire de Génomique, Bioinformatique et Chimie Moléculaire, (GBCM), EA 7528, Conservatoire National des Arts et Métiers, Hautes Écoles Sorbonne Arts et Métiers (HESAM) Université, Paris 2 rue Conté, 75003, France
| | - Catherine Gomez
- Equipe Chimie Moléculaire, Laboratoire de Génomique, Bioinformatique et Chimie Moléculaire, (GBCM), EA 7528, Conservatoire National des Arts et Métiers, Hautes Écoles Sorbonne Arts et Métiers (HESAM) Université, Paris 2 rue Conté, 75003, France
| | - Marc Port
- Equipe Chimie Moléculaire, Laboratoire de Génomique, Bioinformatique et Chimie Moléculaire, (GBCM), EA 7528, Conservatoire National des Arts et Métiers, Hautes Écoles Sorbonne Arts et Métiers (HESAM) Université, Paris 2 rue Conté, 75003, France
| | - Lhoussain Khrouz
- Laboratoire de Chimie, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Lyon F-69342, France
| | - Cyrille Monnereau
- Laboratoire de Chimie, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Lyon F-69342, France
| | - Zacharias Amara
- Equipe Chimie Moléculaire, Laboratoire de Génomique, Bioinformatique et Chimie Moléculaire, (GBCM), EA 7528, Conservatoire National des Arts et Métiers, Hautes Écoles Sorbonne Arts et Métiers (HESAM) Université, Paris 2 rue Conté, 75003, France
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8
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Yan Y, Mesbah A, Khrouz L, Bouillet C, Lorentz C, Blanchard N, Berends AC, Anne van de Haar M, Lerouge F, Krames MR, Ersen O, Chaput F, Parola S. Ultra-Small YPO 4 -YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50. Small 2023:e2208055. [PMID: 36949498 DOI: 10.1002/smll.202208055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Synthesis of high quality colloidal Cerium(III) doped yttrium aluminum garnet (Y3 Al5 O12 :Ce3+ , "YAG:Ce") nanoparticles (NPs) meeting simultaneously both ultra-small size and high photoluminescence (PL) performance is challenging, as generally a particle size/PL trade-off has been observed for this type of nanomaterials. The glycothermal route is capable to yield ultra-fine crystalline colloidal YAG:Ce nanoparticles with a particle size as small as 10 nm but with quantum yield (QY) no more than 20%. In this paper, the first ultra-small YPO4 -YAG:Ce nanocomposite phosphor particles having an exceptional QY-to-size performance with an QY up to 53% while maintaining the particle size ≈10 nm is reported. The NPs are produced via a phosphoric acid- and extra yttrium acetate-assisted glycothermal synthesis route. Localization of phosphate and extra yttrium entities with respect to cerium centers in the YAG host has been determined by fine structural analysis techniques such as X-ray diffration (XRD), solid state nuclear magnetic resonance (NMR), and high resolution scanning transmission electron microscopy (HR-STEM), and shows distinct YPO4 and YAG phases. Finally, a correlation between the additive-induced physico-chemical environment change around cerium centers and the increasing PL performance has been suggested based on electron paramagnetic resonance (EPR), X-ray photoelectron spectrometry (XPS) data, and crystallographic simulation studies.
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Affiliation(s)
- Yige Yan
- Laboratoire de Chimie, ENS Lyon, CNRS, UCBL - UMR 5182, 46, allée d'Italie, 69364, Lyon Cedex 07, France
| | - Adel Mesbah
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON-UMR 5256, 2 Avenue Albert Einstein, 69626, Villeurbanne Cedex, France
| | - Lhoussain Khrouz
- Laboratoire de Chimie, ENS Lyon, CNRS, UCBL - UMR 5182, 46, allée d'Italie, 69364, Lyon Cedex 07, France
| | - Corinne Bouillet
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-ULP, 23 rue du Loess, 67087, Strasbourg, France
| | - Chantal Lorentz
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON-UMR 5256, 2 Avenue Albert Einstein, 69626, Villeurbanne Cedex, France
| | - Nicholas Blanchard
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, 69622, Villeurbanne, France
| | - Anne C Berends
- Seaborough Research BV, Matrix VII Innovation Center, 1098XG, Amsterdam, The Netherlands
| | - Marie Anne van de Haar
- Seaborough Research BV, Matrix VII Innovation Center, 1098XG, Amsterdam, The Netherlands
| | - Frédéric Lerouge
- Laboratoire de Chimie, ENS Lyon, CNRS, UCBL - UMR 5182, 46, allée d'Italie, 69364, Lyon Cedex 07, France
| | | | - Ovidiu Ersen
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-ULP, 23 rue du Loess, 67087, Strasbourg, France
| | - Frédéric Chaput
- Laboratoire de Chimie, ENS Lyon, CNRS, UCBL - UMR 5182, 46, allée d'Italie, 69364, Lyon Cedex 07, France
| | - Stephane Parola
- Laboratoire de Chimie, ENS Lyon, CNRS, UCBL - UMR 5182, 46, allée d'Italie, 69364, Lyon Cedex 07, France
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9
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Longevial JF, Knysh I, Shehimy SA, Khrouz L, Pandurangan A, Pascal S, Canard G, Bucher C, Jacquemin D, Siri O. Proton-Coupled Electron Transfer in a Pivaloyl-Substituted Dihydro-Tetraazapentacene. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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10
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Salaam J, Fogeron T, Pilet G, Bolbos R, Bucher C, Khrouz L, Hasserodt J. Unprecedented Relaxivity Gap in pH-Responsive Fe III -Based MRI Probes. Angew Chem Int Ed Engl 2023; 62:e202212782. [PMID: 36548129 PMCID: PMC10107872 DOI: 10.1002/anie.202212782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/25/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Two mononuclear ferric complexes are reported that respond to a pH change with a 27- and 71-fold jump, respectively, in their capacity to accelerate the longitudinal relaxation rate of water-hydrogen nuclei, and this starting from a negligible base value of only 0.06. This unprecedented performance bodes well for tackling the sensitivity issues hampering the development of Molecular MRI. The two chelates also excel in the fully reversible and fatigue-less nature of this phenomenon. The structural reasons for this performance reside in the macrocyclic nature of the hexa-dentate ligand, as well as the presence of a single pendant arm displaying a five-membered lactam or carbamate which show (perturbed) pKa values of 3.5 in the context of this N6 ⇔ ${ \Leftrightarrow }$ N5O1 coordination motif.
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Affiliation(s)
- Jeremy Salaam
- Laboratoire de Chimie, UMR CNRS/ENSL 5182, Université de Lyon-ENS de Lyon, 46 allee d'Italie, Lyon, France
| | - Thibault Fogeron
- Laboratoire de Chimie, UMR CNRS/ENSL 5182, Université de Lyon-ENS de Lyon, 46 allee d'Italie, Lyon, France
| | - Guillaume Pilet
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS/UCBL 5615, Université de Lyon-Université Claude Bernard Lyon 1, DOUA, Villeurbanne, France
| | - Radu Bolbos
- Dpt. Animage, CERMEP-Imagerie du Vivant, 59 Blvd Pinel, 69677, Bron, France
| | - Christophe Bucher
- Laboratoire de Chimie, UMR CNRS/ENSL 5182, Université de Lyon-ENS de Lyon, 46 allee d'Italie, Lyon, France
| | - Lhoussain Khrouz
- Laboratoire de Chimie, UMR CNRS/ENSL 5182, Université de Lyon-ENS de Lyon, 46 allee d'Italie, Lyon, France
| | - Jens Hasserodt
- Laboratoire de Chimie, UMR CNRS/ENSL 5182, Université de Lyon-ENS de Lyon, 46 allee d'Italie, Lyon, France
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11
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Bennaamane S, Rialland B, Khrouz L, Fustier-Boutignon M, Bucher C, Clot E, Mézailles N. Ammonia Synthesis at Room Temperature and Atmospheric Pressure from N 2 : A Boron-Radical Approach. Angew Chem Int Ed Engl 2023; 62:e202209102. [PMID: 36301016 PMCID: PMC10107438 DOI: 10.1002/anie.202209102] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/09/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
Ammonia, NH3 , is an essential molecule, being part of fertilizers. It is currently synthesized via the Haber-Bosch process, from the very stable dinitrogen molecule, N2 and dihydrogen, H2 . This process requires high temperatures and pressures, thereby generating ca 1.6 % of the global CO2 emissions. Alternative strategies are needed to realize the functionalization of N2 to NH3 under mild conditions. Here, we show that boron-centered radicals provide a means of activating N2 at room temperature and atmospheric pressure whilst allowing a radical process to occur, leading to the production of borylamines. Subsequent hydrolysis released NH4 + , the acidic form of NH3 . EPR spectroscopy supported the intermediacy of radicals in the process, corroborated by DFT calculations, which rationalized the mechanism of the N2 functionalization by R2 B radicals.
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Affiliation(s)
- Soukaina Bennaamane
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062, Toulouse, France
| | - Barbara Rialland
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062, Toulouse, France
| | - Lhoussain Khrouz
- Univ Lyon, ENS Lyon, CNRS, Universite Lyon 1, Laboratoire de Chimie, UMR 5182, 46 allée d'Italie, 69364, Lyon, France
| | - Marie Fustier-Boutignon
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062, Toulouse, France
| | - Christophe Bucher
- Univ Lyon, ENS Lyon, CNRS, Universite Lyon 1, Laboratoire de Chimie, UMR 5182, 46 allée d'Italie, 69364, Lyon, France
| | - Eric Clot
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34000, Montpellier, France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062, Toulouse, France
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12
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Salaam J, Fogeron T, Pilet G, Bolbos R, Bucher C, Khrouz L, Hasserodt J. Unprecedented Relaxivity Gap in pH‐Responsive Fe(III)‐Based MRI Probes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202212782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jeremy Salaam
- École normale supérieure de Lyon: Ecole normale superieure de Lyon Laboratoire de Chimie FRANCE
| | - Thibault Fogeron
- École normale supérieure de Lyon: Ecole normale superieure de Lyon Laboratoire de Chimie FRANCE
| | - Guillaume Pilet
- Université Claude Bernard Lyon 1: Universite Claude Bernard Lyon 1 Laboratoire des Multimatériaux et Interfaces FRANCE
| | | | - Christophe Bucher
- École normale supérieure de Lyon: Ecole normale superieure de Lyon Laboratoire de Chimie FRANCE
| | - Lhoussain Khrouz
- École normale supérieure de Lyon: Ecole normale superieure de Lyon Laboratoire de Chimie FRANCE
| | - Jens Hasserodt
- University of Lyon - ENS Labo. de Chimie 46, Allee d'Italie 69364 Lyon cedex 07 FRANCE
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13
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Deiana M, Josse P, Dalinot C, Osmolovskyi A, Marqués PS, Castán JMA, Abad Galán L, Allain M, Khrouz L, Maury O, Le Bahers T, Blanchard P, Dabos-Seignon S, Monnereau C, Sabouri N, Cabanetos C. Site-selected thionated benzothioxanthene chromophores as heavy-atom-free small-molecule photosensitizers for photodynamic therapy. Commun Chem 2022; 5:142. [PMID: 36697939 PMCID: PMC9814739 DOI: 10.1038/s42004-022-00752-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 10/07/2022] [Indexed: 01/27/2023] Open
Abstract
Photodynamic therapy is a clinically approved anticancer modality that employs a light-activated agent (photosensitizer) to generate cytotoxic reactive oxygen species (ROS). There is therefore a growing interest for developing innovative photosensitizing agents with enhanced phototherapeutic performances. Herein, we report on a rational design synthetic procedure that converts the ultrabright benzothioxanthene imide (BTI) dye into three heavy-atom-free thionated compounds featuring close-to-unit singlet oxygen quantum yields. In contrast to the BTI, these thionated analogs display an almost fully quenched fluorescence emission, in agreement with the formation of highly populated triplet states. Indeed, the sequential thionation on the BTI scaffold induces torsion of its skeleton reducing the singlet-triplet energy gaps and enhancing the spin-orbit coupling. These potential PSs show potent cancer-cell ablation under light irradiation while remaining non-toxic under dark condition owing to a photo-cytotoxic mechanism that we believe simultaneously involves singlet oxygen and superoxide species, which could be both characterized in vitro. Our study demonstrates that this simple site-selected thionated platform is an effective strategy to convert conventional carbonyl-containing fluorophores into phototherapeutic agents for anticancer PDT.
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Affiliation(s)
- Marco Deiana
- grid.12650.300000 0001 1034 3451Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87 Umeå, Sweden
| | - Pierre Josse
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Clément Dalinot
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Artem Osmolovskyi
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Pablo Simón Marqués
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - José María Andrés Castán
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Laura Abad Galán
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Magali Allain
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Lhoussain Khrouz
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Olivier Maury
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Tangui Le Bahers
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Philippe Blanchard
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Sylvie Dabos-Seignon
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Cyrille Monnereau
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Nasim Sabouri
- grid.12650.300000 0001 1034 3451Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87 Umeå, Sweden
| | - Clément Cabanetos
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France ,grid.15444.300000 0004 0470 5454IRL CNRS 2002, 2BFUEL, CNRS -Yonsei University, Seoul, South Korea
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14
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Bennaamane S, Rialland B, Khrouz L, Fustier-Boutignon M, Bucher C, Clot E, Mézailles N. Ammonia Synthesis at Room Temperature and Atmospheric Pressure from N2: A Boron‐Radical Approach. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Soukaina Bennaamane
- Université Toulouse III Paul Sabatier: Universite Toulouse III Paul Sabatier Chemistry FRANCE
| | - Barbara Rialland
- Université Toulouse III Paul Sabatier: Universite Toulouse III Paul Sabatier chemistry FRANCE
| | | | | | | | - Eric Clot
- Université de Montpellier: Universite de Montpellier chemistry FRANCE
| | - Nicolas Mézailles
- UMR CNRS 5069, Université Paul Sabatier Laboratoire Hétérochimie Fondamentale et Appliquée 118, route de Narbonne 31062 Toulouse FRANCE
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15
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Al Shehimy S, Baydoun O, Denis-Quanquin S, Mulatier JC, Khrouz L, Frath D, Dumont É, Murugesu M, Chevallier F, Bucher C. Ni-Centered Coordination-Induced Spin-State Switching Triggered by Electrical Stimulation. J Am Chem Soc 2022; 144:17955-17965. [PMID: 36154166 DOI: 10.1021/jacs.2c07196] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We herein report the synthesis and magnetic properties of a Ni(II)-porphyrin tethered to an imidazole ligand through a flexible electron-responsive mechanical hinge. The latter is capable of undergoing a large amplitude and fully reversible folding motion under the effect of electrical stimulation. This redox-triggered movement is exploited to force the axial coordination of the appended imidazole ligand onto the square-planar Ni(II) center, resulting in a change in its spin state from low spin (S = 0) to high spin (S = 1) proceeding with an 80% switching efficiency. The driving force of this reversible folding motion is the π-dimerization between two electrogenerated viologen cation radicals. The folding motion and the associated spin state switching are demonstrated on the grounds of NMR, (spectro)electrochemical, and magnetic data supported by quantum calculations.
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Affiliation(s)
- Shaymaa Al Shehimy
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | - Orsola Baydoun
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | | | | | - Lhoussain Khrouz
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | - Denis Frath
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | - Élise Dumont
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France.,Institut Universitaire de France, 5 rue Descartes, 75005 Paris, France
| | - Muralee Murugesu
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Floris Chevallier
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | - Christophe Bucher
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
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16
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Taponard A, Jarrosson T, Khrouz L, Médebielle M, Broggi J, Tlili A. Metal-Free SF 6 Activation: A New SF 5 -Based Reagent Enables Deoxyfluorination and Pentafluorosulfanylation Reactions. Angew Chem Int Ed Engl 2022; 61:e202204623. [PMID: 35471641 DOI: 10.1002/anie.202204623] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Indexed: 12/13/2022]
Abstract
The activation of SF6 , a potent greenhouse gas, under metal-free and visible light conditions is reported. Herein, mechanistic investigations including EPR spectroscopy, NMR studies and cyclic voltammetry allowed the rational design of a new fluorinating reagent which was synthesized from the 2-electron activation of SF6 with commercially available TDAE. This new SF5 -based reagent was efficiently employed for the deoxyfluorination of CO2 and the fluorinative desulfurization of CS2 allowing the formation of useful fluorinated amines. Moreover, for the first time we demonstrated that our SF5 -based reagent could afford the mild generation of Cl-SF5 gas. This finding was exploited for the chloro-pentafluorosulfanylation of alkynes and alkenes.
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Affiliation(s)
- Alexis Taponard
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
| | - Tristan Jarrosson
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
| | - Lhoussain Khrouz
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69364, Lyon, France
| | - Maurice Médebielle
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
| | - Julie Broggi
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire (ICR)ICR UMR 7273, Faculty of Pharmacy, 27 Bd Jean Moulin, 13385, Marseille, France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
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17
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Taponard A, Jarrosson T, Khrouz L, Médebielle M, Broggi J, Tlili A. Metal‐Free SF
6
Activation: A New SF
5
‐Based Reagent Enables Deoxyfluorination and Pentafluorosulfanylation Reactions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204623] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Alexis Taponard
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246) Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Tristan Jarrosson
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246) Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Lhoussain Khrouz
- ENSL, CNRS, Laboratoire de Chimie UMR 5182 46 allée d'Italie 69364 Lyon France
| | - Maurice Médebielle
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246) Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Julie Broggi
- Aix Marseille Univ, CNRS Institut de Chimie Radicalaire (ICR)ICR UMR 7273 Faculty of Pharmacy 27 Bd Jean Moulin 13385 Marseille France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246) Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
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18
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Louvel D, Souibgui A, Taponard A, Rouillon J, ben Mosbah M, Moussaoui Y, Pilet G, Khrouz L, Monnereau C, Vantourout JC, Tlili A. Tailoring the Reactivity of the Langlois Reagent and Styrenes with Cyanoarenes Organophotocatalysts under Visible‐Light. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202100828] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dan Louvel
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246) Univ Lyon Université Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Amel Souibgui
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246) Univ Lyon Université Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
- Organic Chemistry Laboratory (LR17ES08) Faculty of Sciences of Sfax University of Sfax Sfax 3029 Tunisia
- Faculty of Sciences of Gafsa University of Gafsa Gafsa 2112 Tunisia
| | - Alexis Taponard
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246) Univ Lyon Université Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Jean Rouillon
- Univ Lyon ENS de Lyon, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie F-69342 Lyon France
| | - Mongi ben Mosbah
- Organic Chemistry Laboratory (LR17ES08) Faculty of Sciences of Sfax University of Sfax Sfax 3029 Tunisia
- Laboratory for the Application of Materials to the Environment, Water and Energy (LR21ES15) Faculty of Sciences of Gafsa University of Gafsa Gafsa 2112 Tunisia
| | - Younes Moussaoui
- Organic Chemistry Laboratory (LR17ES08) Faculty of Sciences of Sfax University of Sfax Sfax 3029 Tunisia
- Faculty of Sciences of Gafsa University of Gafsa Gafsa 2112 Tunisia
| | - Guillaume Pilet
- Univ Lyon Université Lyon 1, Laboratoire des Multimatériaux et Interfaces (LMI), UMR 5615, CNRS, Bâtiment Chevreul Avenue du 11 novembre 1918 69622 Villeurbanne cedex France
| | - Lhoussain Khrouz
- Univ Lyon ENS de Lyon, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie F-69342 Lyon France
| | - Cyrille Monnereau
- Univ Lyon ENS de Lyon, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie F-69342 Lyon France
| | - Julien C. Vantourout
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246) Univ Lyon Université Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246) Univ Lyon Université Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
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Louvel D, Chelagha A, Rouillon J, Payard P, Khrouz L, Monnereau C, Tlili A. Metal‐Free Visible‐Light Synthesis of Arylsulfonyl Fluorides: Scope and Mechanism. Chemistry 2021; 27:8704-8708. [DOI: 10.1002/chem.202101056] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Indexed: 12/13/2022]
Affiliation(s)
- Dan Louvel
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246) Univ Lyon Université Lyon 1 CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Aida Chelagha
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246) Univ Lyon Université Lyon 1 CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Jean Rouillon
- Univ Lyon Ens de Lyon CNRS UMR 5182 Université Lyon 1 Laboratoire de Chimie 69342 Lyon France
| | - Pierre‐Adrien Payard
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246) Univ Lyon Université Lyon 1 CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Lhoussain Khrouz
- Univ Lyon Ens de Lyon CNRS UMR 5182 Université Lyon 1 Laboratoire de Chimie 69342 Lyon France
| | - Cyrille Monnereau
- Univ Lyon Ens de Lyon CNRS UMR 5182 Université Lyon 1 Laboratoire de Chimie 69342 Lyon France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246) Univ Lyon Université Lyon 1 CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
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20
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Mendoza C, Désert A, Khrouz L, Páez CA, Parola S, Heinrichs B. Heterogeneous singlet oxygen generation: in-operando visible light EPR spectroscopy. Environ Sci Pollut Res Int 2021; 28:25124-25129. [PMID: 30903479 DOI: 10.1007/s11356-019-04763-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 03/04/2019] [Indexed: 06/09/2023]
Abstract
The use of photosensitizers immobilized on mesoporous materials to produce singlet oxygen (1O2) has opened a new way to synthetic and environmental applications due to the fast development of flow photochemistry and continuous-flow microreactors. 1O2-based photosensitized processes can be employed for the degradation of organic pollutants in an aqueous medium and the photosensitizer can be covalently attached to the support and separated from the effluent reducing the environmental impact. The aim of the present paper is to evaluate the 1O2 generation of Rose Bengal (RB) in homogeneous and heterogeneous systems using in-operando evaluation. Mesoporous SiO2 nanoparticles (MSNs) were successfully conjugated with RB (MSN-RB) and electron paramagnetic resonance (EPR) spectroscopy in combination with the spin trap TEMP was employed to obtain paramagnetic TEMPO via generated 1O2 when RB or MSN-RB are exposed to visible light. Additionally, EPR/DMPO was used to exclude the possible generation of other reactive oxygen species (ROS) by the functionalized nanoparticles. We found that in situ 1O2 generation was enhanced when the same amount of RB is immobilized inside of mesoporous SiO2.
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Affiliation(s)
- Carlos Mendoza
- Nanomaterials, Catalysis & Electrochemistry (NCE), Department of Chemical Engineering, University of Liège, B-4000, Liège, Belgium.
| | - Anthony Désert
- UMR 5182, Laboratoire de Chimie, Université de Lyon, Ecole Normale Superieure de Lyon, CNRS, Université Lyon 1, 46 allée d'Italie, F69364, Lyon, France
| | - Lhoussain Khrouz
- UMR 5182, Laboratoire de Chimie, Université de Lyon, Ecole Normale Superieure de Lyon, CNRS, Université Lyon 1, 46 allée d'Italie, F69364, Lyon, France
| | - Carlos A Páez
- Nanomaterials, Catalysis & Electrochemistry (NCE), Department of Chemical Engineering, University of Liège, B-4000, Liège, Belgium
| | - Stéphane Parola
- UMR 5182, Laboratoire de Chimie, Université de Lyon, Ecole Normale Superieure de Lyon, CNRS, Université Lyon 1, 46 allée d'Italie, F69364, Lyon, France
| | - Benoît Heinrichs
- Nanomaterials, Catalysis & Electrochemistry (NCE), Department of Chemical Engineering, University of Liège, B-4000, Liège, Belgium
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21
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Louvel D, Ghiazza C, Debrauwer V, Khrouz L, Monnereau C, Tlili A. Forging C-SeCF 3 Bonds with Trifluoromethyl Tolueneselenosulfonate under Visible-Light. CHEM REC 2021; 21:417-426. [PMID: 33502093 DOI: 10.1002/tcr.202000184] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/08/2021] [Accepted: 01/12/2021] [Indexed: 12/17/2022]
Abstract
This account highlights some of our recent work on photoinduced trifluoromethylselenolation reactions. This research program relies primarily on the design of a new key shelf-stable selenating reagent that can be involved in various radical processes In particular, we demonstrated that trifluoromethylselenolation of arenes, alkenes, alkynes as well as aliphatic organic building blocks can be readily achieved under visible-light irradiation. Mechanistic investigations based on 19 F NMR studies, EPR spectroscopy, cyclic voltammetry and luminescence studies allowed us to shed the light on the different proposed mechanisms in the designed methodologies. The applicative potential of these strategies was further demonstrated through the synthesis of bioactive analogue containing SeCF3 motif.
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Affiliation(s)
- Dan Louvel
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
| | - Clément Ghiazza
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
| | - Vincent Debrauwer
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
| | - Lhoussain Khrouz
- Univ Lyon, Ens de Lyon, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie, F-69342, Lyon, France
| | - Cyrille Monnereau
- Univ Lyon, Ens de Lyon, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie, F-69342, Lyon, France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
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22
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Larabi C, Norsic S, Khrouz L, Boyron O, Szeto KC, Lucas C, Taoufik M, De Mallmann A. Oxide-Supported Titanium Catalysts: Structure–Activity Relationship in Heterogeneous Catalysis, with the Choice of Support as a Key Step. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cherif Larabi
- Université de Lyon, ESCPE Lyon, UMR 5265 CNRS, Université Claude Bernard Lyon 1, Laboratoire C2P2, 43 bd du 11 Novembre 1918, F-69626 Villeurbanne Cedex, France
| | - Sébastien Norsic
- Université de Lyon, ESCPE Lyon, UMR 5265 CNRS, Université Claude Bernard Lyon 1, Laboratoire C2P2, 43 bd du 11 Novembre 1918, F-69626 Villeurbanne Cedex, France
| | - Lhoussain Khrouz
- Université de Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, 46 Allée d’Italie, 69342 Lyon, France
| | - Olivier Boyron
- Université de Lyon, ESCPE Lyon, UMR 5265 CNRS, Université Claude Bernard Lyon 1, Laboratoire C2P2, 43 bd du 11 Novembre 1918, F-69626 Villeurbanne Cedex, France
| | - Kai Chung Szeto
- Université de Lyon, ESCPE Lyon, UMR 5265 CNRS, Université Claude Bernard Lyon 1, Laboratoire C2P2, 43 bd du 11 Novembre 1918, F-69626 Villeurbanne Cedex, France
| | - Christine Lucas
- Université de Lyon, ESCPE Lyon, UMR 5265 CNRS, Université Claude Bernard Lyon 1, Laboratoire C2P2, 43 bd du 11 Novembre 1918, F-69626 Villeurbanne Cedex, France
| | - Mostafa Taoufik
- Université de Lyon, ESCPE Lyon, UMR 5265 CNRS, Université Claude Bernard Lyon 1, Laboratoire C2P2, 43 bd du 11 Novembre 1918, F-69626 Villeurbanne Cedex, France
| | - Aimery De Mallmann
- Université de Lyon, ESCPE Lyon, UMR 5265 CNRS, Université Claude Bernard Lyon 1, Laboratoire C2P2, 43 bd du 11 Novembre 1918, F-69626 Villeurbanne Cedex, France
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Mendoza C, Désert A, Chateau D, Monnereau C, Khrouz L, Lerouge F, Andraud C, Monbaliu JCM, Parola S, Heinrichs B. Au nanobipyramids@mSiO 2 core-shell nanoparticles for plasmon-enhanced singlet oxygen photooxygenations in segmented flow microreactors. Nanoscale Adv 2020; 2:5280-5287. [PMID: 36132037 PMCID: PMC9416853 DOI: 10.1039/d0na00533a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 08/28/2020] [Indexed: 05/21/2023]
Abstract
The plasmonic features of gold nanomaterials provide intriguing optical effects which can find potential applications in various fields. These effects depend strongly on the size and shape of the metal nanostructures. For instance, Au bipyramids (AuBPs) exhibit intense and well-defined plasmon resonance, easily tunable by controlling their aspect ratio, which can act synergistically with chromophores for enhancing their photophysical properties. In Rose Bengal-nanoparticle systems it is now well established that the control of the dye-to-nanoparticle distance ranging from 10 to 20 nm as well as spectral overlaps is crucial to achieve appropriate coupling between the plasmon resonance and the dye, thus affecting its ability to generate singlet oxygen (1O2). We have developed AuBPs@mSiO2 core-shell nanostructures that provide control over the distance between the metal surface and the photosensitizers for improving the production of 1O2 (metal-enhanced 1O2 production - ME1O2). A drastic enhancement of 1O2 generation is evidenced for the resulting AuBPs and AuBPs@mSiO2 in the presence of Rose Bengal, using a combination of three indirect methods of 1O2 detection, namely in operando Electron Paramagnetic Resonance (EPR) with 2,2,6,6-tetramethylpiperidine (TEMP) as a chemical trap, photooxygenation of the fluorescence probe anthracene-9,10-dipropionic acid (ADPA), and photooxygenation of methionine to methionine sulfoxide in a segmented flow microreactor.
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Affiliation(s)
- Carlos Mendoza
- Nanomaterials, Catalysis & Electrochemistry (NCE), Department of Chemical Engineering, University of Liège B-4000 Liège Belgium
| | - Anthony Désert
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Denis Chateau
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Cyrille Monnereau
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Lhoussain Khrouz
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Fréderic Lerouge
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Chantal Andraud
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Jean-Christophe M Monbaliu
- Center for Integrated Technology and Organic Synthesis (CiTOS), Research Unit MolSys, University of Liège B-4000 Liège Belgium
| | - Stéphane Parola
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Benoît Heinrichs
- Nanomaterials, Catalysis & Electrochemistry (NCE), Department of Chemical Engineering, University of Liège B-4000 Liège Belgium
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Arnoux C, Konishi T, Van Elslande E, Poutougnigni EA, Mulatier JC, Khrouz L, Bucher C, Dumont E, Kamada K, Andraud C, Baldeck P, Banyasz A, Monnereau C. Polymerization Photoinitiators with Near-Resonance Enhanced Two-Photon Absorption Cross-Section: Toward High-Resolution Photoresist with Improved Sensitivity. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01518] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Caroline Arnoux
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Tatsuki Konishi
- Nanomaterials Research Institute (NMRI), National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577 Japan
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda 669-1337, Japan
| | - Emma Van Elslande
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Eric-Aimé Poutougnigni
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Jean-Christophe Mulatier
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Lhoussain Khrouz
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Christophe Bucher
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Elise Dumont
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Kenji Kamada
- Nanomaterials Research Institute (NMRI), National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577 Japan
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda 669-1337, Japan
| | - Chantal Andraud
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Patrice Baldeck
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Akos Banyasz
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
| | - Cyrille Monnereau
- Université Lyon, ENS Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France
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Payard P, Zheng Y, Zhou W, Khrouz L, Bonneviot L, Wischert R, Grimaud L, Pera‐Titus M. Cover Feature: Iron Triflate Salts as Highly Active Catalysts for the Solvent‐Free Oxidation of Cyclohexane (Eur. J. Org. Chem. 24/2020). European J Org Chem 2020. [DOI: 10.1002/ejoc.202000800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pierre‐Adrien Payard
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
- Laboratoire des Biomolécules LBM PSL University, Sorbonne Université 24 rue Lhomond 75005 Paris France
| | - Yu‐Ting Zheng
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Wen‐Juan Zhou
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Lhoussain Khrouz
- Université Claude Bernard Lyon 1, Laboratoire de Chimie LBM Univ Lyon, ENS de Lyon, CNRS UMR 5182 46 Allée d'Italie 69342 Lyon France
| | - Laurent Bonneviot
- Université Claude Bernard Lyon 1, Laboratoire de Chimie LBM Univ Lyon, ENS de Lyon, CNRS UMR 5182 46 Allée d'Italie 69342 Lyon France
| | - Raphael Wischert
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Laurence Grimaud
- Laboratoire des Biomolécules LBM PSL University, Sorbonne Université 24 rue Lhomond 75005 Paris France
| | - Marc Pera‐Titus
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
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Payard PA, Finidori C, Guichard L, Cartigny D, Corbet M, Khrouz L, Bonneviot L, Wischert R, Grimaud L, Pera-Titus M. Rational Optimization of Lewis-Acid Catalysts for the Direct Amination of Alcohols, Part 1 - Activity Descriptors for Metal Triflates and Triflimides. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pierre-Adrien Payard
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
- Laboratoire des Biomolécules, LBM; Département de Chimie, École Normale Supérieure; PSL University, Sorbonne Université, CNRS UMR 7203; 24 rue Lhomond 75005 Paris France
| | - Céline Finidori
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Laurélia Guichard
- Laboratoire des Biomolécules, LBM; Département de Chimie, École Normale Supérieure; PSL University, Sorbonne Université, CNRS UMR 7203; 24 rue Lhomond 75005 Paris France
| | - Damien Cartigny
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Matthieu Corbet
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Lhoussain Khrouz
- Univ Lyon, ENS de Lyon, CNRS UMR 5182; Université Claude Bernard Lyon 1, Laboratoire de Chimie; 46 Allée d'Italie 69342 Lyon France
| | - Laurent Bonneviot
- Univ Lyon, ENS de Lyon, CNRS UMR 5182; Université Claude Bernard Lyon 1, Laboratoire de Chimie; 46 Allée d'Italie 69342 Lyon France
| | - Raphael Wischert
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Laurence Grimaud
- Laboratoire des Biomolécules, LBM; Département de Chimie, École Normale Supérieure; PSL University, Sorbonne Université, CNRS UMR 7203; 24 rue Lhomond 75005 Paris France
| | - Marc Pera-Titus
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
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Payard PA, Finidori C, Guichard L, Cartigny D, Corbet M, Khrouz L, Bonneviot L, Wischert R, Grimaud L, Pera-Titus M. Rational Optimization of Lewis-Acid Catalysts for Direct Alcohol Amination, Part 2 - Titanium Triflimide as New Active Catalyst. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Pierre-Adrien Payard
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
- Laboratoire des Biomolécules, LBM; Département de Chimie, École Normale Supérieure; PSL University, Sorbonne Université, CNRS UMR 7203; 24 rue Lhomond 75005 Paris France
| | - Céline Finidori
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Laurélia Guichard
- Laboratoire des Biomolécules, LBM; Département de Chimie, École Normale Supérieure; PSL University, Sorbonne Université, CNRS UMR 7203; 24 rue Lhomond 75005 Paris France
| | - Damien Cartigny
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Matthieu Corbet
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
- Solvay Advanced Organic Chemistry & Molecule Design Laboratory; 85 rue des Frères Perret 69192 Saint-Fons France
| | - Lhoussain Khrouz
- Univ Lyon, ENS de Lyon, CNRS UMR 5182; Université Claude Bernard Lyon 1, Laboratoire de Chimie; 46 Allée d'Italie 69342 Lyon France
| | - Laurent Bonneviot
- Univ Lyon, ENS de Lyon, CNRS UMR 5182; Université Claude Bernard Lyon 1, Laboratoire de Chimie; 46 Allée d'Italie 69342 Lyon France
| | - Raphael Wischert
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Laurence Grimaud
- Laboratoire des Biomolécules, LBM; Département de Chimie, École Normale Supérieure; PSL University, Sorbonne Université, CNRS UMR 7203; 24 rue Lhomond 75005 Paris France
| | - Marc Pera-Titus
- Eco-Efficient Products and Processes Laboratory (E2P2L); UMI 3464 CNRS Solvay; 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
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Payard P, Zheng Y, Zhou W, Khrouz L, Bonneviot L, Wischert R, Grimaud L, Pera‐Titus M. Iron Triflate Salts as Highly Active Catalysts for the Solvent‐Free Oxidation of Cyclohexane. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000263] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pierre‐Adrien Payard
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
- Laboratoire des Biomolécules LBM PSL University, Sorbonne Université 24 rue Lhomond 75005 Paris France
| | - Yu‐Ting Zheng
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Wen‐Juan Zhou
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Lhoussain Khrouz
- Université Claude Bernard Lyon 1, Laboratoire de Chimie LBM Univ Lyon, ENS de Lyon, CNRS UMR 5182 46 Allée d'Italie 69342 Lyon France
| | - Laurent Bonneviot
- Université Claude Bernard Lyon 1, Laboratoire de Chimie LBM Univ Lyon, ENS de Lyon, CNRS UMR 5182 46 Allée d'Italie 69342 Lyon France
| | - Raphael Wischert
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Laurence Grimaud
- Laboratoire des Biomolécules LBM PSL University, Sorbonne Université 24 rue Lhomond 75005 Paris France
| | - Marc Pera‐Titus
- Eco‐Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
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Lecourt C, Izumi Y, Khrouz L, Toche F, Chiriac R, Bélanger-Desmarais N, Reber C, Fabelo O, Inoue K, Desroches C, Luneau D. Thermally-induced hysteretic valence tautomeric conversions in the solid state via two-step labile electron transfers in manganese-nitronyl nitroxide 2D-frameworks. Dalton Trans 2020; 49:15646-15662. [PMID: 33156311 DOI: 10.1039/d0dt03243c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Near room temperature hysteretic thermo-induced valence tautomerism was discovered in a layered 2D-coordination polymer of manganese(ii) with nitronyl nitroxide radicals separated by ClO4- anions (1). This opens a novel approach towards switchable materials with hysteresis and under ambient conditions with prospects for applications and for investigating solid-state intramolecular electron transfers. Herein, two new compounds with similar layered structures where the anions (X) are BF4- (2) or PF6- (3) are presented. Their magnetic behaviors also reveal hysteretic thermo-induced valence tautomeric conversions but in two steps and evidencing a strong effect of the anion. This occurs near room temperature (278-220 K) for 2 and higher for 3 (380-330 K). Their single crystal structures at different temperatures show that this involves two successive thermally-triggered electron transfers with switching between three redox tautomers formulated as {[MnII2-yMnIIIy(NITIm)3-y(NITRed)y]X}n, where y is temperature dependent. Upon cooling from the high-temperature redox-tautomer (y = 0) to the intermediate one (y = 1), half of the manganese(ii) centers are oxidized to manganese(iii) and 1/3 of the nitronyl nitroxide radicals (NITIm-) are reduced to the aminoxyl form (NITRed2-). On further cooling, the second half of the manganese(ii) centers are oxidized and another 1/3 of the radicals are reduced to reach the low-temperature redox-tautomer (y = 2). Upon reheating, reverse electron transfers occur. This is complementarily supported by X-ray powder measurements, differential scanning calorimetry, and electron paramagnetic resonance and Raman spectroscopies. These multi-stable compounds in which manganese ions exchange reversibly their electron with the nitronyl nitroxide radical are outstanding rare examples of two-step valence tautomerism in the solid state promoted by the polymeric structure.
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Affiliation(s)
- Constance Lecourt
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
| | - Yuuta Izumi
- Department of Chemistry, Graduate School of Science and Chirality Research Center (CResCent), Hiroshima University, 1-3-1, Kagamiyama, Higashi Hiroshima, Hiroshima, 739-8526, Japan
| | - Lhoussain Khrouz
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, F69342, Lyon, France
| | - François Toche
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
| | - Rodica Chiriac
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
| | | | - Christian Reber
- Département de chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Oscar Fabelo
- Institut Laue-Langevin, 71 avenue des Martyrs, 38042 Grenoble Cedex 9, France
| | - Katsuya Inoue
- Department of Chemistry, Graduate School of Science and Chirality Research Center (CResCent), Hiroshima University, 1-3-1, Kagamiyama, Higashi Hiroshima, Hiroshima, 739-8526, Japan
| | - Cédric Desroches
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
| | - Dominique Luneau
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
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30
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Lecourt C, Madanamoothoo W, Ferreol V, Bélanger-Desmarais N, Khrouz L, Tommasino JB, Reber C, Desroches C, Luneau D. Mononuclear manganese(iii) complexes with reduced imino nitroxide radicals by single-electron transfer and intermolecular hydrogen bonds as an intramolecular structural driving force. Dalton Trans 2019; 48:13378-13387. [DOI: 10.1039/c9dt02158b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
One-electron transfer from Mn(ii) ions to an imino nitroxide radical gives mononuclear Mn(iii) complexes of the reduced amino imine-oxide form for which crystal structures evidence hydrogen bonds networks acting as a stabilizing driving-force.
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Affiliation(s)
- Constance Lecourt
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | - Warren Madanamoothoo
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | - Vivian Ferreol
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | | | - Lhoussain Khrouz
- Univ Lyon
- ENS de Lyon
- CNRS UMR 5182
- Université Claude Bernard Lyon 1
- Laboratoire de Chimie
| | - Jean-Bernard Tommasino
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | | | - Cédric Desroches
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
| | - Dominique Luneau
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- Laboratoire des Multimatériaux et Interfaces
- F-69622 Villeurbanne
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31
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Ghiazza C, Monnereau C, Khrouz L, Médebielle M, Billard T, Tlili A. New Avenues in Radical Trifluoromethylselenylation with Trifluoromethyl Tolueneselenosulfonate. Synlett 2018. [DOI: 10.1055/s-0037-1610347] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We demonstrated that the shelf-stable reagent trifluoromethyl tolueneselenosulfonate can be involved in radical trifluoromethylselenylation. Upon visible-light irradiation, the homolysis of the reagent could take place at room temperature. This finding is explored for unprecedented C(sp2)–SeCF3 and C(sp3)–SeCF3 processes under transition-metal-free conditions. Mechanistic investigations, including cyclic voltammetry, luminescence measurement, and EPR studies, allowed the proposal of plausible mechanisms.1 Introduction.2 Reactivity of Reagent I with Diazonium Salts3 Reactivity of Reagent I with Alkenes and Alkynes4 Conclusion
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Affiliation(s)
- Clément Ghiazza
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA
| | - Cyrille Monnereau
- Univ Lyon, Ens de Lyon, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie
| | - Lhoussain Khrouz
- Univ Lyon, Ens de Lyon, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie
| | - Maurice Médebielle
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA
| | - Thierry Billard
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA
- CERMEP-In vivo Imaging, Groupement Hospitalier Est
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA
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32
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Zhang Z, Khrouz L, Yin G, Andrioletti B. Efficient Oxidation of Benzylic and Aliphatic Alcohols Using a Bioinspired Cross-Bridged Cyclam Manganese Complex with H2
O2. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801140] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhan Zhang
- ICBMS-UMR 5246, Campus Lyon-Tech la Doua, Bât. Curien/CPE; Univ Lyon, Université Claude Bernard Lyon 1; 43 Boulevard du 11 Novembre 1918 69622 Villeurbanne France
| | - Lhoussain Khrouz
- Laboratoire de Chimie, UMR-CNRS 5182; Univ Lyon, Ecole Normale Supérieure de Lyon; 46 allée d′Italie 69364 Lyon 07 France
| | - Guochuan Yin
- School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 430074 Wuhan P. R. China
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology); Ministry of Education; P. R. China
| | - Bruno Andrioletti
- ICBMS-UMR 5246, Campus Lyon-Tech la Doua, Bât. Curien/CPE; Univ Lyon, Université Claude Bernard Lyon 1; 43 Boulevard du 11 Novembre 1918 69622 Villeurbanne France
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Abstract
The visible-light-mediated synthesis of trifluoromethylthiolated arenes in the presence of ruthenium-based photocatayst under mild reaction conditions is reported. The trifluoromethylthiolated arenes are obtained using the shelf-stable reagent trifluoromethyl toluenethiosulfonate at room temperature. The reaction proceeds selectively and does not require the presence of any additive. A mechanism is proposed based on the obtained results of EPR as well as luminescence
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Affiliation(s)
- Clément Ghiazza
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246) Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon
| | - Cyrille Monnereau
- Univ Lyon, Ens de Lyon, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie
| | - Lhoussain Khrouz
- Univ Lyon, Ens de Lyon, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie
| | - Thierry Billard
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246) Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon
- CERMEP-In vivo Imaging, Groupement Hospitalier Est
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS–UMR CNRS 5246) Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon
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Ghiazza C, Debrauwer V, Monnereau C, Khrouz L, Médebielle M, Billard T, Tlili A. Visible‐Light‐Mediated Metal‐Free Synthesis of Trifluoromethylselenolated Arenes. Angew Chem Int Ed Engl 2018; 57:11781-11785. [DOI: 10.1002/anie.201806165] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/25/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Clément Ghiazza
- Institute of Chemistry and Biochemistry (ICBMS-UMRCNRS 5246)Univ Lyon, Université Lyon 1, CNRSCPE-LyonINSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Vincent Debrauwer
- Institute of Chemistry and Biochemistry (ICBMS-UMRCNRS 5246)Univ Lyon, Université Lyon 1, CNRSCPE-LyonINSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Cyrille Monnereau
- Univ LyonEns de Lyon, CNRS UMR 5182Université Lyon 1Laboratoire de Chimie 69342 Lyon France
| | - Lhoussain Khrouz
- Univ LyonEns de Lyon, CNRS UMR 5182Université Lyon 1Laboratoire de Chimie 69342 Lyon France
| | - Maurice Médebielle
- Institute of Chemistry and Biochemistry (ICBMS-UMRCNRS 5246)Univ Lyon, Université Lyon 1, CNRSCPE-LyonINSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Thierry Billard
- Institute of Chemistry and Biochemistry (ICBMS-UMRCNRS 5246)Univ Lyon, Université Lyon 1, CNRSCPE-LyonINSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
- CERMEP—in vivo imagingGroupement Hospitalier Est 59 Bd Pinel 69003 Lyon France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMRCNRS 5246)Univ Lyon, Université Lyon 1, CNRSCPE-LyonINSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
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35
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Ghiazza C, Khrouz L, Monnereau C, Billard T, Tlili A. Visible-light promoted fluoroalkylselenolation: toward the reactivity of unsaturated compounds. Chem Commun (Camb) 2018; 54:9909-9912. [PMID: 30105319 DOI: 10.1039/c8cc05256e] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The reactivity of fluoroalkylselenotoluenesulfonates with unsaturated substrates is explored herein. The direct activation of these shelf-stable reagents under visible light allows the double functionalisation of alkenes or alkynes efficiently, leading to a wide range of β-fluoroalkylselenolated sulfones. Mechanistic investigations have been undertaken supporting the formation of radical intermediates.
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Affiliation(s)
- Clément Ghiazza
- Institute of Chemistry and Biochemistry (ICBMS - UMR CNRS 5246), Unvi. Lyon, Université Lyon 1, CNRS, 43 Bd du 11 novembre 1918, F-69622 Villeurbanne, France.
| | - Lhoussain Khrouz
- Univ Lyon, ENS de LYON, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie, F-69342, Lyon, France
| | - Cyrille Monnereau
- Univ Lyon, ENS de LYON, CNRS UMR 5182, Université Lyon 1, Laboratoire de Chimie, F-69342, Lyon, France
| | - Thierry Billard
- Institute of Chemistry and Biochemistry (ICBMS - UMR CNRS 5246), Unvi. Lyon, Université Lyon 1, CNRS, 43 Bd du 11 novembre 1918, F-69622 Villeurbanne, France. and CERMEP - in vivo imaging, Groupement Hospitalier Est, 59 Boulevard Pinel, F-69003 Lyon, France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS - UMR CNRS 5246), Unvi. Lyon, Université Lyon 1, CNRS, 43 Bd du 11 novembre 1918, F-69622 Villeurbanne, France.
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36
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Ghiazza C, Debrauwer V, Monnereau C, Khrouz L, Médebielle M, Billard T, Tlili A. Visible-Light-Mediated Metal-Free Synthesis of Trifluoromethylselenolated Arenes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806165] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Clément Ghiazza
- Institute of Chemistry and Biochemistry (ICBMS-UMR; CNRS 5246); Univ Lyon, Université Lyon 1, CNRS; CPE-Lyon; INSA; 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Vincent Debrauwer
- Institute of Chemistry and Biochemistry (ICBMS-UMR; CNRS 5246); Univ Lyon, Université Lyon 1, CNRS; CPE-Lyon; INSA; 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Cyrille Monnereau
- Univ Lyon; Ens de Lyon, CNRS UMR 5182; Université Lyon 1; Laboratoire de Chimie; 69342 Lyon France
| | - Lhoussain Khrouz
- Univ Lyon; Ens de Lyon, CNRS UMR 5182; Université Lyon 1; Laboratoire de Chimie; 69342 Lyon France
| | - Maurice Médebielle
- Institute of Chemistry and Biochemistry (ICBMS-UMR; CNRS 5246); Univ Lyon, Université Lyon 1, CNRS; CPE-Lyon; INSA; 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Thierry Billard
- Institute of Chemistry and Biochemistry (ICBMS-UMR; CNRS 5246); Univ Lyon, Université Lyon 1, CNRS; CPE-Lyon; INSA; 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
- CERMEP-in vivo imaging; Groupement Hospitalier Est; 59 Bd Pinel 69003 Lyon France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMR; CNRS 5246); Univ Lyon, Université Lyon 1, CNRS; CPE-Lyon; INSA; 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
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37
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Kaddah S, Khreich N, Kaddah F, Khrouz L, Charcosset C, Greige-Gerges H. Corticoids modulate liposome membrane fluidity and permeability depending on membrane composition and experimental protocol design. Biochimie 2018; 153:33-45. [PMID: 29935242 DOI: 10.1016/j.biochi.2018.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 06/15/2018] [Indexed: 01/22/2023]
Abstract
Given that literature data may give inconsistent results on the effect of a drug on lipid membrane properties, this work aims to investigate the impact of the liposome composition and experimental protocol design on glucocorticoids (GRs: cortisol, cortisone, fludrocortisone acetate, methylprednisolone, prednisolone and prednisone)-modulating membrane fluidity and permeability. GRs-loaded liposomes consisting of dipalmitoylphosphatidylcholine (DPPC) and cholesterol (CHOL) were prepared by reverse phase evaporation technique (REV) at DPPC:CHOL:GR molar ratios of 100:100:2.5, and 100:100:10. The formulations were characterized for their size and homogeneity, encapsulation efficiency and loading rates of GRs, incorporation rates and loading rates of DPPC and CHOL. Changes in DPPC membrane fluidity (CHOL% 0, 10, 20, 30 and 100) after exposure to methylprednisolone were monitored by using 5- and 16-doxyl stearic acids (DSA) as spin probes. For permeability studies, the above-mentioned GRs-loaded liposomes and the preformed liposomes exposed to GRs (2.5 mol%) were compared for the leakage of an encapsulated fluorescent dye, sulforhodamine B (SRB), at 37 °C in buffer (pH 7.5) containing NaCl. The SRB release kinetics were analyzed by the Higuchi model for two release phases (from 0 to 10 h, and from 10 to 48 h). All formulations exhibited a monodispersed size distribution of liposomes with a mean particle value close to 0.4 μm, also the DPPC and CHOL were highly incorporated (>95%). High loading rate values of DPPC and CHOL were also obtained. Except for fludrocortisone acetate (51%) and prednisolone (77%), high loading rate values of GRs were obtained (>81%). Fluidity and permeability studies showed that the GR concentration, CHOL content, experimental protocol design including the period of incubation represent critical parameters to be considered in analyzing the effect of drugs on the membrane properties.
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Affiliation(s)
- Samar Kaddah
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Lebanon; Laboratoire d'Automatique et de Génie des Procédés (LAGEP), Université Claude Bernard, Lyon 1, France
| | - Nathalie Khreich
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Lebanon
| | - Fouad Kaddah
- École Supérieure d'ingénieurs de Beyrouth, Université Saint Joseph, Beyrouth, Mar Roukoz-Dekwaneh, Lebanon
| | - Lhoussain Khrouz
- Laboratoire de Chimie, École Normale Supérieure de Lyon (ENS), Université Claude Bernard, Lyon 1, France
| | - Catherine Charcosset
- Laboratoire d'Automatique et de Génie des Procédés (LAGEP), Université Claude Bernard, Lyon 1, France
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Lebanon.
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38
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Chaignon J, Gourgues M, Khrouz L, Moliner N, Bonneviot L, Fache F, Castro I, Albela B. A bioinspired heterogeneous catalyst based on the model of the manganese-dependent dioxygenase for selective oxidation using dioxygen. RSC Adv 2017. [DOI: 10.1039/c7ra00514h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
A hybrid bioinspired material with manganese(ii) complexes grafted on the surface of a mesostructured porous silica is investigated.
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Affiliation(s)
- Jérémy Chaignon
- Laboratoire de Chimie UMR CNRS 5182
- Ecole Normale Supérieure de Lyon
- University of Lyon
- 69364 Lyon
- France
| | - Marie Gourgues
- Laboratoire de Chimie UMR CNRS 5182
- Ecole Normale Supérieure de Lyon
- University of Lyon
- 69364 Lyon
- France
| | - Lhoussain Khrouz
- Laboratoire de Chimie UMR CNRS 5182
- Ecole Normale Supérieure de Lyon
- University of Lyon
- 69364 Lyon
- France
| | - Nicolás Moliner
- Instituto de Ciencia Molecular
- Universitat de València
- 46980 Paterna
- Spain
| | - Laurent Bonneviot
- Laboratoire de Chimie UMR CNRS 5182
- Ecole Normale Supérieure de Lyon
- University of Lyon
- 69364 Lyon
- France
| | - Fabienne Fache
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS) UMR CNRS 5246
- University of Lyon
- 69622 Villeurbanne
- France
| | - Isabel Castro
- Instituto de Ciencia Molecular
- Universitat de València
- 46980 Paterna
- Spain
| | - Belén Albela
- Laboratoire de Chimie UMR CNRS 5182
- Ecole Normale Supérieure de Lyon
- University of Lyon
- 69364 Lyon
- France
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Fang W, Khrouz L, Zhou Y, Shen B, Dong C, Xing M, Mishra S, Daniele S, Zhang J. Reduced {001}-TiO2−x photocatalysts: noble-metal-free CO2 photoreduction for selective CH4 evolution. Phys Chem Chem Phys 2017; 19:13875-13881. [DOI: 10.1039/c7cp01212h] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation of reduced TiO2 photocatalysts with high Ti3+ concentration is a great challenge due to their instability in air.
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Affiliation(s)
- Wenzhang Fang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | | | - Yi Zhou
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Bin Shen
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Chunyang Dong
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Mingyang Xing
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Shashank Mishra
- Université Claude Bernard Lyon 1
- Institut de Recherches sur la Catalyse et L'environnement de Lyon (IRCELYON)
- CNRS
- UMR 5256
- 69626 Villeurbanne
| | - Stéphane Daniele
- Université Claude Bernard Lyon 1
- Institut de Recherches sur la Catalyse et L'environnement de Lyon (IRCELYON)
- CNRS
- UMR 5256
- 69626 Villeurbanne
| | - Jinlong Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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Lannes A, Suffren Y, Tommasino JB, Chiriac R, Toche F, Khrouz L, Molton F, Duboc C, Kieffer I, Hazemann JL, Reber C, Hauser A, Luneau D. Room Temperature Magnetic Switchability Assisted by Hysteretic Valence Tautomerism in a Layered Two-Dimensional Manganese-Radical Coordination Framework. J Am Chem Soc 2016; 138:16493-16501. [DOI: 10.1021/jacs.6b10544] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Anthony Lannes
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
| | - Yan Suffren
- Département
de Chimie Physique, Université de Genève, 30 Quai
Ernest-Ansermet, 1211 Genève 4, Switzerland
| | - Jean Bernard Tommasino
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
| | - Rodica Chiriac
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
| | - François Toche
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
| | - Lhoussain Khrouz
- Univ Lyon, ENS de Lyon,
CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire
de Chimie, F69342, Lyon, France
| | - Florian Molton
- Département de Chimie
Moléculaire (UMR 5250), Université Joseph Fourier, Grenoble, France
| | - Carole Duboc
- Département de Chimie
Moléculaire (UMR 5250), Université Joseph Fourier, Grenoble, France
| | - Isabelle Kieffer
- BM30B/FAME Beamline, European Synchrotron for Research Facility (ESRF), Grenoble, France
- Observatoire des Sciences de l’Univers
de Grenoble (OSUG), CNRS UMS 832, 414
rue de la piscine, 38400 Saint Martin d’Hères, France
| | - Jean-Louis Hazemann
- BM30B/FAME Beamline, European Synchrotron for Research Facility (ESRF), Grenoble, France
- Institut
Néel, UPR 2940 CNRS, Grenoble, France
| | - Christian Reber
- Département de Chimie, Université de Montréal, Montréal, Canada
| | - Andreas Hauser
- Département
de Chimie Physique, Université de Genève, 30 Quai
Ernest-Ansermet, 1211 Genève 4, Switzerland
| | - Dominique Luneau
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
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Jossé C, Massardier V, Khrouz L, Cassagnau P, Viot F. Elaboration of low viscosity and high impact polypropylene blends through reactive extrusion. POLYM ENG SCI 2016. [DOI: 10.1002/pen.24267] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Camille Jossé
- Université de Lyon, 69003, INSA de Lyon, Ingénierie des Matériaux Polymères CNRS UMR 5223; 69621 Villeurbanne France
- Plastic Omnium Sigmatech; Avenue du Bois des Vergnes 01800 Sainte Julie France
- Université de Lyon, 69003, CNRS UMR 5223, Ingénierie des Matériaux Polymères; Université de Lyon 1; 69621 Villeurbanne France
| | - Valérie Massardier
- Université de Lyon, 69003, INSA de Lyon, Ingénierie des Matériaux Polymères CNRS UMR 5223; 69621 Villeurbanne France
| | - Lhoussain Khrouz
- Université de Lyon, CNRS UMR 5182, École Normale Supérieure de Lyon, Laboratoire de Chimie; 69364 Lyon France
| | - Philippe Cassagnau
- Université de Lyon, 69003, CNRS UMR 5223, Ingénierie des Matériaux Polymères; Université de Lyon 1; 69621 Villeurbanne France
| | - Frederic Viot
- Plastic Omnium Sigmatech; Avenue du Bois des Vergnes 01800 Sainte Julie France
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Fel E, Khrouz L, Massardier V, Bonneviot L. Comparative study of gamma-irradiated PP and PE polyolefins part 1: Identification and quantification of radicals using electron paramagnetic resonance. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.07.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ould-Chikh S, Proux O, Afanasiev P, Khrouz L, Hedhili MN, Anjum DH, Harb M, Geantet C, Basset JM, Puzenat E. Photocatalysis with chromium-doped TiO2: bulk and surface doping. ChemSusChem 2014; 7:1361-1371. [PMID: 24737636 DOI: 10.1002/cssc.201300922] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Indexed: 06/03/2023]
Abstract
The photocatalytic properties of TiO2 modified by chromium are usually found to depend strongly on the preparation method. To clarify this problem, two series of chromium-doped titania with a chromium content of up to 1.56 wt % have been prepared under hydrothermal conditions: the first series (Cr:TiO2) is intended to dope the bulk of TiO2, whereas the second series (Cr/TiO2) is intended to load the surface of TiO2 with Cr. The catalytic properties have been compared in the photocatalytic oxidation of formic acid. Characterization data provides evidence that in the Cr/TiO2 catalysts chromium is located on the surface of TiO2 as amorphous CrOOH clusters. In contrast, in the Cr:TiO2 series, chromium is mostly dissolved in the titania lattice, although a minor part is still present on the surface. Photocatalytic tests show that both series of chromium-doped titania demonstrate visible-light-driven photo-oxidation activity. Surface-doped Cr/TiO2 solids appear to be more efficient photocatalysts than the bulk-doped Cr:TiO2 counterparts.
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Affiliation(s)
- Samy Ould-Chikh
- KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal (Saudi Arabia).
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Petit C, Poli E, Favre-Réguillon A, Khrouz L, Denis-Quanquin S, Bonneviot L, Mignani G, Lemaire M. Unraveling the Catalytic Cycle of Tertiary Phosphine Oxides Reduction with Hydrosiloxane and Ti(OiPr)4 through EPR and 29Si NMR Spectroscopy. ACS Catal 2013. [DOI: 10.1021/cs4002767] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christelle Petit
- Laboratoire de Catalyse et de Synthèse Organique, UMR 5246,
ICBMS, Université Claude Bernard Lyon 1, 43 bld du 11 Novembre
1918, 69622 Villeurbanne Cedex, France
| | - Evelyne Poli
- ENS Lyon, Laboratoire de Chimie, Groupe Matériaux
Hybrides, 46 allée d’Italie, 69364 Lyon cedex 7, France
| | - Alain Favre-Réguillon
- Laboratoire de Génie des
Procédés Catalytiques, UMR 5285, CPE Lyon, 43 bld du
11 Novembre 1918, 69622 Villeurbanne Cedex, France
- Equipe CGP, Département CASER, Conservatoire
National des Arts et Métiers, 2 rue Conté, 75003 Paris,
France
| | - Lhoussain Khrouz
- ENS Lyon, Laboratoire de Chimie, Groupe Matériaux
Hybrides, 46 allée d’Italie, 69364 Lyon cedex 7, France
| | - Sandrine Denis-Quanquin
- ENS Lyon, Laboratoire de Chimie, Groupe Matériaux
Hybrides, 46 allée d’Italie, 69364 Lyon cedex 7, France
| | - Laurent Bonneviot
- ENS Lyon, Laboratoire de Chimie, Groupe Matériaux
Hybrides, 46 allée d’Italie, 69364 Lyon cedex 7, France
| | - Gérard Mignani
- Rhodia Operations,
Lyon Research Center, 85, avenue des Frères Perret, BP 62,
69192 Saint-Fons Cedex, France
| | - Marc Lemaire
- Laboratoire de Catalyse et de Synthèse Organique, UMR 5246,
ICBMS, Université Claude Bernard Lyon 1, 43 bld du 11 Novembre
1918, 69622 Villeurbanne Cedex, France
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Perraud O, Tommasino JB, Robert V, Albela B, Khrouz L, Bonneviot L, Dutasta JP, Martinez A. Hemicryptophane-assisted electron transfer: a structural and electronic study. Dalton Trans 2013; 42:1530-5. [DOI: 10.1039/c2dt31530k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang K, Lam KF, Albela B, Xue T, Khrouz L, Hou QW, Yuan EH, He MY, Bonneviot L. Mononuclear-dinuclear equilibrium of grafted copper complexes confined in the nanochannels of MCM-41 silica. Chemistry 2011; 17:14258-66. [PMID: 22068981 DOI: 10.1002/chem.201102026] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Indexed: 11/11/2022]
Abstract
Following the structural concept of copper-containing proteins in which dinuclear copper centers are connected by hydroxide bridging ligands, a bidentate copper(II) complex has been incorporated into nano-confined MCM-41 silica by a multistep sequential grafting technique. Characterization by a combination of EPR spectroscopy, X-ray photoelectron spectroscopy (XPS), UV/Vis spectroscopy, IR spectroscopy , and solid-state (13)C and (29)Si cross-polarization magic-angle spinning (CP-MAS) NMR suggests that dinuclear Cu complexes are bridged by hydroxide and other counterions (chloride or perchlorate ions), similar to the situation for EPR-undetectable [Cu(II)···Cu(II)] dimer analogues in biological systems. More importantly, a dynamic mononuclear-dinuclear equilibrium between different coordination modes of copper is observed, which strongly depends on the nature of the counterions (Cl(-) or ClO(4)(-)) in the copper precursor and the pore size of the silica matrix (the so-called confinement effect). A proton-transfer mechanism within the hydrogen-bonding network is suggested to explain the dynamic nature of the dinuclear copper complex supported on the MCM-41 silica.
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Affiliation(s)
- Kun Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 Zhongshan North Road, 200062, Shanghai, China.
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