Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume 46, Issue 16, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/46/16/164031
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Funding
- Max Planck Society
- Office of Basic Energy Sciences, US Department of Energy
- Helmholtz Gemeinschaft through the Young Investigator Program
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Carlsberg Foundation
- excellence cluster 'The Hamburg Centre for Ultrafast Imaging - Structure, Dynamics and Control of Matter at the Atomic Scale' of the Deutsche Forschungsgemeinschaft
- Grants-in-Aid for Scientific Research [23550017] Funding Source: KAKEN
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The ionization and fragmentation of two selenium containing hydrocarbon molecules, methylselenol (CH3SeH) and ethylselenol (C2H5SeH), by intense (>10(17) W cm(-2)) 5 fs x-ray pulses with photon energies of 1.7 and 2 keV has been studied by means of coincident ion momentum spectroscopy. Measuring charge states and ion kinetic energies, we find signatures of charge redistribution within the molecular environment. Furthermore, by analyzing fragment ion angular correlations, we can determine the laboratory-frame orientation of individual molecules and thus investigate the fragmentation dynamics in the molecular frame. This allows distinguishing protons originating from different molecular sites along with identifying the reaction channels that lead to their emission.
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