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- Title
Coherent Vibrational and Dissociation Dynamics of Polyatomic Radical Cations.
- Authors
Moore Tibbetts, Katharine
- Abstract
The ultrafast dynamics of polyatomic radical cations contribute to important processes including energy transfer in photovoltaics, electron transfer in photocatalysis, radiation‐induced DNA damage, and chemical reactions in the upper atmosphere and space. Probing these dynamics in the gas phase is challenging due to the rapid dissociation of polyatomic radical cations following electron removal, which arises from excess electronic excitation of the molecule during the ionization process. This Concept article introduces the reader to how the pump‐probe technique of femtosecond time‐resolved mass spectrometry (FTRMS) can overcome this challenge to capture coherent vibrational dynamics on the femtosecond timescale in polyatomic radical cations and enable the analysis of their dissociation pathways. Examples of FTRMS applied to three families of polyatomic radical cations are discussed.
- Subjects
RADICAL cations; ELECTRONIC excitation; PUMP probe spectroscopy; CHEMICAL reactions; GAS dynamics
- Publication
Chemistry - A European Journal, 2019, Vol 25, Issue 36, p8431
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201983661