A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

X-ray-initiated photodissociation of the glycine molecule




TekijätLi Fang, Hui Xiong, Edwin Kukk, Vladmire S. Petrovic, Nora Berrah

KustantajaAMER PHYSICAL SOC

Julkaisuvuosi2018

JournalPhysical Review A

Tietokannassa oleva lehden nimiPHYSICAL REVIEW A

Lehden akronyymiPHYS REV A

Artikkelin numeroARTN 053408

Vuosikerta98

Numero5

Sivujen määrä8

ISSN2469-9926

eISSN2469-9934

DOIhttps://doi.org/10.1103/PhysRevA.98.053408

Rinnakkaistallenteen osoitehttps://research.utu.fi/converis/portal/detail/Publication/37157388


Tiivistelmä
We investigated the charge distribution and dissociation dynamics of glycine (NH2CH2COOH) molecules irradiated with 310-eV x rays from the Advanced Light Source synchrotron. With simultaneous measurements of the fragment ion yield, dissociation angle, and kinetic energy, we were able to reconstruct a three-dimensional image of the x-ray-initiated molecular dissociation. Using coincidence and correlated analysis and applying a systematic comparison of properties of ion species, we partially disentangled the fragmentation pathways and identified the most probable fragmentation channels that lead to the observed fragment ions. In addition, we showed anisotropic angular distributions of dissociation subsequent to core-level photoionization and Auger decay and found an association between the initial bond-breaking sites and the kinetic energies of the final fragment ions.

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