Photodissociation of aligned CH3I and C6H3F2I molecules probed with time-resolved Coulomb explosion imaging by site-selective extreme ultraviolet ionization
We explore time-resolved Coulomb explosion induced by intense, extreme ultraviolet (XUV) femtosecond pulses from a free-electron laser as a method to image photo-induced molecular dynamics in two molecules, iodomethane and 2,6-difluoroiodobenzene. At an excitation wavelength of 267 nm, the dominant...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
AIP Publishing
2018
|
| _version_ | 1797063687317487616 |
|---|---|
| author | Amini, K Savelyev, E Brauße, F Berrah, N Bomme, C Brouard, M Burt, M Christensen, L Düsterer, S Erk, B Höppner, H Kierspel, T Krecinic, F Lauer, A Lee, J Müller, M Müller, E Mullins, T Redlin, H Schirmel, N Thøgersen, J Techert, S Toleikis, S Treusch, R Trippel, S Ulmer, A Vallance, C Wiese, J Johnsson, P Küpper, J Rudenko, A Rouzée, A Stapelfeldt, H Rolles, D Boll, R |
| author_facet | Amini, K Savelyev, E Brauße, F Berrah, N Bomme, C Brouard, M Burt, M Christensen, L Düsterer, S Erk, B Höppner, H Kierspel, T Krecinic, F Lauer, A Lee, J Müller, M Müller, E Mullins, T Redlin, H Schirmel, N Thøgersen, J Techert, S Toleikis, S Treusch, R Trippel, S Ulmer, A Vallance, C Wiese, J Johnsson, P Küpper, J Rudenko, A Rouzée, A Stapelfeldt, H Rolles, D Boll, R |
| author_sort | Amini, K |
| collection | OXFORD |
| description | We explore time-resolved Coulomb explosion induced by intense, extreme ultraviolet (XUV) femtosecond pulses from a free-electron laser as a method to image photo-induced molecular dynamics in two molecules, iodomethane and 2,6-difluoroiodobenzene. At an excitation wavelength of 267 nm, the dominant reaction pathway in both molecules is neutral dissociation via cleavage of the carbon-iodine bond. This allows investigating the influence of the molecular environment on the absorption of an intense, femtosecond XUV pulse and the subsequent Coulomb explosion process. We find that the XUV probe pulse induces local inner-shell ionization of atomic iodine in dissociating iodomethane, in contrast to non-selective ionization of all photofragments in difluoroiodobenzene. The results reveal evidence of electron transfer from methyl and phenyl moieties to a multiply charged iodine ion. In addition, indications for ultrafast charge rearrangement on the phenyl radical are found, suggesting that time-resolved Coulomb explosion imaging is sensitive to the localization of charge in extended molecules. |
| first_indexed | 2024-03-06T21:03:28Z |
| format | Journal article |
| id | oxford-uuid:3ba88efe-ec13-4e1c-8865-ee3f9c01732f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:03:28Z |
| publishDate | 2018 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:3ba88efe-ec13-4e1c-8865-ee3f9c01732f2022-03-26T14:09:10ZPhotodissociation of aligned CH3I and C6H3F2I molecules probed with time-resolved Coulomb explosion imaging by site-selective extreme ultraviolet ionizationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3ba88efe-ec13-4e1c-8865-ee3f9c01732fEnglishSymplectic Elements at OxfordAIP Publishing2018Amini, KSavelyev, EBrauße, FBerrah, NBomme, CBrouard, MBurt, MChristensen, LDüsterer, SErk, BHöppner, HKierspel, TKrecinic, FLauer, ALee, JMüller, MMüller, EMullins, TRedlin, HSchirmel, NThøgersen, JTechert, SToleikis, STreusch, RTrippel, SUlmer, AVallance, CWiese, JJohnsson, PKüpper, JRudenko, ARouzée, AStapelfeldt, HRolles, DBoll, RWe explore time-resolved Coulomb explosion induced by intense, extreme ultraviolet (XUV) femtosecond pulses from a free-electron laser as a method to image photo-induced molecular dynamics in two molecules, iodomethane and 2,6-difluoroiodobenzene. At an excitation wavelength of 267 nm, the dominant reaction pathway in both molecules is neutral dissociation via cleavage of the carbon-iodine bond. This allows investigating the influence of the molecular environment on the absorption of an intense, femtosecond XUV pulse and the subsequent Coulomb explosion process. We find that the XUV probe pulse induces local inner-shell ionization of atomic iodine in dissociating iodomethane, in contrast to non-selective ionization of all photofragments in difluoroiodobenzene. The results reveal evidence of electron transfer from methyl and phenyl moieties to a multiply charged iodine ion. In addition, indications for ultrafast charge rearrangement on the phenyl radical are found, suggesting that time-resolved Coulomb explosion imaging is sensitive to the localization of charge in extended molecules. |
| spellingShingle | Amini, K Savelyev, E Brauße, F Berrah, N Bomme, C Brouard, M Burt, M Christensen, L Düsterer, S Erk, B Höppner, H Kierspel, T Krecinic, F Lauer, A Lee, J Müller, M Müller, E Mullins, T Redlin, H Schirmel, N Thøgersen, J Techert, S Toleikis, S Treusch, R Trippel, S Ulmer, A Vallance, C Wiese, J Johnsson, P Küpper, J Rudenko, A Rouzée, A Stapelfeldt, H Rolles, D Boll, R Photodissociation of aligned CH3I and C6H3F2I molecules probed with time-resolved Coulomb explosion imaging by site-selective extreme ultraviolet ionization |
| title | Photodissociation of aligned CH3I and C6H3F2I molecules probed with time-resolved Coulomb explosion imaging by site-selective extreme ultraviolet ionization |
| title_full | Photodissociation of aligned CH3I and C6H3F2I molecules probed with time-resolved Coulomb explosion imaging by site-selective extreme ultraviolet ionization |
| title_fullStr | Photodissociation of aligned CH3I and C6H3F2I molecules probed with time-resolved Coulomb explosion imaging by site-selective extreme ultraviolet ionization |
| title_full_unstemmed | Photodissociation of aligned CH3I and C6H3F2I molecules probed with time-resolved Coulomb explosion imaging by site-selective extreme ultraviolet ionization |
| title_short | Photodissociation of aligned CH3I and C6H3F2I molecules probed with time-resolved Coulomb explosion imaging by site-selective extreme ultraviolet ionization |
| title_sort | photodissociation of aligned ch3i and c6h3f2i molecules probed with time resolved coulomb explosion imaging by site selective extreme ultraviolet ionization |
| work_keys_str_mv | AT aminik photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT savelyeve photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT braußef photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT berrahn photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT bommec photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT brouardm photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT burtm photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT christensenl photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT dusterers photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT erkb photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT hoppnerh photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT kierspelt photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT krecinicf photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT lauera photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT leej photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT mullerm photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT mullere photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT mullinst photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT redlinh photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT schirmeln photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT thøgersenj photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT techerts photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT toleikiss photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT treuschr photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT trippels photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT ulmera photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT vallancec photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT wiesej photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT johnssonp photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT kupperj photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT rudenkoa photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT rouzeea photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT stapelfeldth photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT rollesd photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization AT bollr photodissociationofalignedch3iandc6h3f2imoleculesprobedwithtimeresolvedcoulombexplosionimagingbysiteselectiveextremeultravioletionization |