X-ray photoabsorption-induced processes within protonated rifamycin sodium salts in the gas phase
Autor: | Benoit Bernay, Jean-Christophe Poully, Pinelopi Christodoulou, Andrea Espinosa Rodriguez, Thomas Schlathölter, Juliette Leroux, Marwa Abdelmouleh |
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Přispěvatelé: | Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), Faculty of Biomedical Engineering, Czech Technical University in Prague (CTU), Interactions Cellules Organismes Environnement (ICORE), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Université de Caen Normandie (UNICAEN), Normandie Université (NU), Zernike Institute for Advanced Materials, University of Groningen [Groningen], Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Normandie Université (NU)-CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN), Quantum interactions and structural dynamics |
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
010405 organic chemistry
Dimer Sodium Cationic polymerization chemistry.chemical_element Protonation 010402 general chemistry Photochemistry 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences chemistry.chemical_compound Monomer chemistry Fragmentation (mass spectrometry) [CHIM.ANAL]Chemical Sciences/Analytical chemistry Intramolecular force polycyclic compounds [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph] Absorption (chemistry) [CHIM.RADIO]Chemical Sciences/Radiochemistry |
Zdroj: | The European Physical Journal D : Atomic, molecular, optical and plasma physics The European Physical Journal D : Atomic, molecular, optical and plasma physics, EDP Sciences, 2021, 75 (3), pp.74. ⟨10.1140/epjd/s10053-021-00092-w⟩ The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2021, 75 (3), pp.74. ⟨10.1140/epjd/s10053-021-00092-w⟩ European Physical Journal D, 75(3):74. SPRINGER |
ISSN: | 1434-6060 1434-6079 |
DOI: | 10.1140/epjd/s10053-021-00092-w⟩ |
Popis: | International audience; Up to now, the response of antibiotics upon ionizing radiation has been very scarcely reported. Here, we present the results of X-ray photoabsorption experiments on isolated rifamycin, a broad-range antibiotic against Gram-positive and negative bacteria. A mass spectrometer has been coupled to a synchrotron beamline to analyze cationic products of photoabsorption on protonated rifamycin dimer and monomer sodium salts. Absorption of a single photon in the 100-300eV energy range leads to ionization of the molecular system, followed by vibrational energy deposition and subsequent inter-and/or intramolecular fragmentation. Interestingly, we observe a proton transfer from sodiated rifamycin to rifamycin, a widely-observed process in ionized molecular systems in the gas phase. Moreover, we show that another charge-transfer process occurs in both dimer and monomer: intramolecular sodium transfer, which has not been reported yet, to the best of our knowledge. |
Databáze: | OpenAIRE |
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