University of Oulu

Fragmentation of small molecules by UV and X-ray irradiation

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Author: Kokkonen, Esko1
Organizations: 1University of Oulu, Faculty of Science, Physics
Format: ebook
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2 MB)
Persistent link: http://urn.fi/urn:isbn:9789526216317
Language: English
Published: 2017
Publish Date: 2017-09-01
Thesis type: Doctoral Dissertation
Defence Note: Academic Dissertation to be presented with the assent of the Doctoral Training Committee of Technology and Natural Sciences of the University of Oulu for public discussion in the Auditorium IT116, on September 15th, 2017, at 12 o’clock noon.
Reviewer: Professor Nobuhiro Kosugi
Doctor Robert Richter
Opponent: Doctor C. Nicolas
Kustos: Professor Marko Huttula
Description:

Abstract

Electron-ion coincidence spectroscopy has been used to study the fragmentation behaviour of small molecules in two distinct cases: to resolve the state specific fragmentation patterns of HgBr₂ and HgCl₂ subsequent to UV ionization, and to distinguish the dissociation behaviour of various chlorinated methanes (CH₃Cl, CH₂Cl₂, CHCl₃ and CCl₄) subsequent to X-ray irradiation. The mercury-compound work has revealed details on the electronic structure and dissociation dynamics of the valence states which were previously unknown. The study on the chlorinated methanes has found new details on the exact pathways of the appearance of a specific fragment and also investigates the speed of the dissociation in the four different chlorinated methane molecules. The results from the electron-ion coincidence spectroscopic experiments are presented and analysed together with theoretical and computational support.

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Series: Report series in physical sciences
ISSN: 1239-4327
ISSN-L: 1239-4327
ISBN: 978-952-62-1631-7
ISBN Print: 978-952-62-1630-0
Issue: 112
Subjects:
ion
Copyright information: © University of Oulu, 2017. This publication is copyrighted. You may download, display and print it for your own personal use. Commercial use is prohibited.