The role of charge and proton transfer in fragmentation of hydrogen-bonded nanosystems: the breakup of ammonia clusters upon single photon multi-ionization. Issue 2 (12th December 2017)

• Record Type: Journal Article
• Authors: Oostenrijk, Bart; Walsh, Noelle; Laksman, Joakim; Månsson, Erik P.; Grunewald, Christian; Sorensen, Stacey L.; Gisselbrecht, Mathieu
• Is Part Of: Physical chemistry chemical physics. Volume 20:Issue 2(2017)
• Page Start: 932
• Page End: 940
• Publication Date: 2017-12-12
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c7cp06688k
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The charge and proton dynamics in hydrogen-bonded networks are investigated using ammonia as a model system. Abstract : The charge and proton dynamics in hydrogen-bonded networks are investigated using ammonia as a model system. The fragmentation dynamics of medium-sized clusters (1–2 nm) upon single photon multi-ionization is studied, by analyzing the momenta of small ionic fragments. The observed fragmentation pattern of the doubly- and triply-charged clusters reveals a spatial anisotropy of emission between fragments (back-to-back). Protonated fragments exhibit a distinct kinematic correlation, indicating a delay between ionization and fragmentation (fission). The different kinematics observed for channels containing protonated and unprotonated species provides possible insights into the prime mechanisms of charge and proton transfer, as well as proton hopping, in such a nanoscale system.