Structure determination of the tetracene dimer in helium nanodroplets using femtosecond strong-field ionization
Dimers of tetracene molecules are formed inside helium nanodroplets and identified through covariance analysis of the emission directions of kinetic tetracene cations stemming from femtosecond laser-induced Coulomb explosion. Next, the dimers are aligned in either one or three dimensions under field...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC and ACA
2019-07-01
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| Series: | Structural Dynamics |
| Online Access: | http://dx.doi.org/10.1063/1.5118005 |
| _version_ | 1811237192596455424 |
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| author | Constant Schouder Adam S. Chatterley Florent Calvo Lars Christiansen Henrik Stapelfeldt |
| author_facet | Constant Schouder Adam S. Chatterley Florent Calvo Lars Christiansen Henrik Stapelfeldt |
| author_sort | Constant Schouder |
| collection | DOAJ |
| description | Dimers of tetracene molecules are formed inside helium nanodroplets and identified through covariance analysis of the emission directions of kinetic tetracene cations stemming from femtosecond laser-induced Coulomb explosion. Next, the dimers are aligned in either one or three dimensions under field-free conditions by a nonresonant, moderately intense laser pulse. The experimental angular covariance maps of the tetracene ions are compared to calculated covariance maps for seven different dimer conformations and found to be consistent with four of these. Additional measurements of the alignment-dependent strong-field ionization yield of the dimer narrow the possible conformations down to either a slipped-parallel or parallel-slightly rotated structure. According to our quantum chemistry calculations, these are the two most stable gas-phase conformations of the dimer and one of them is favorable for singlet fission. |
| first_indexed | 2024-04-12T12:21:53Z |
| format | Article |
| id | doaj.art-2ac2d36240bc407baf4cb12592ee2ffc |
| institution | Directory Open Access Journal |
| issn | 2329-7778 |
| language | English |
| last_indexed | 2024-04-12T12:21:53Z |
| publishDate | 2019-07-01 |
| publisher | AIP Publishing LLC and ACA |
| record_format | Article |
| series | Structural Dynamics |
| spelling | doaj.art-2ac2d36240bc407baf4cb12592ee2ffc2022-12-22T03:33:17ZengAIP Publishing LLC and ACAStructural Dynamics2329-77782019-07-0164044301044301-1210.1063/1.5118005007904SDYStructure determination of the tetracene dimer in helium nanodroplets using femtosecond strong-field ionizationConstant Schouder0Adam S. Chatterley1Florent Calvo2Lars Christiansen3Henrik Stapelfeldt4 Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000 Aarhus C, Denmark Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark Université Grenoble Alpes CNRS, LIPHY, F-38000 Grenoble, France Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, DenmarkDimers of tetracene molecules are formed inside helium nanodroplets and identified through covariance analysis of the emission directions of kinetic tetracene cations stemming from femtosecond laser-induced Coulomb explosion. Next, the dimers are aligned in either one or three dimensions under field-free conditions by a nonresonant, moderately intense laser pulse. The experimental angular covariance maps of the tetracene ions are compared to calculated covariance maps for seven different dimer conformations and found to be consistent with four of these. Additional measurements of the alignment-dependent strong-field ionization yield of the dimer narrow the possible conformations down to either a slipped-parallel or parallel-slightly rotated structure. According to our quantum chemistry calculations, these are the two most stable gas-phase conformations of the dimer and one of them is favorable for singlet fission.http://dx.doi.org/10.1063/1.5118005 |
| spellingShingle | Constant Schouder Adam S. Chatterley Florent Calvo Lars Christiansen Henrik Stapelfeldt Structure determination of the tetracene dimer in helium nanodroplets using femtosecond strong-field ionization Structural Dynamics |
| title | Structure determination of the tetracene dimer in helium nanodroplets using femtosecond strong-field ionization |
| title_full | Structure determination of the tetracene dimer in helium nanodroplets using femtosecond strong-field ionization |
| title_fullStr | Structure determination of the tetracene dimer in helium nanodroplets using femtosecond strong-field ionization |
| title_full_unstemmed | Structure determination of the tetracene dimer in helium nanodroplets using femtosecond strong-field ionization |
| title_short | Structure determination of the tetracene dimer in helium nanodroplets using femtosecond strong-field ionization |
| title_sort | structure determination of the tetracene dimer in helium nanodroplets using femtosecond strong field ionization |
| url | http://dx.doi.org/10.1063/1.5118005 |
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