TY - BOOK ID - 56712395 TI - Two Studies in Gas-Phase Ion Spectroscopy : Vacuum-Ultraviolet Negative Photoion Spectroscopy and Ion-Molecule Reaction Kinetics AU - Simpson, Matthew J AU - SpringerLink (Online service) PY - 2012 SN - 9783642231292 PB - Berlin Heidelberg Springer Berlin Heidelberg DB - UniCat KW - Optics. Quantum optics KW - Physicochemistry KW - Theoretical spectroscopy. Spectroscopic techniques KW - spectroscopie KW - microscopie KW - fysicochemie KW - spectrometrie UR - https://www.unicat.be/uniCat?func=search&query=sysid:56712395 AB - In this thesis Matthew Simpson reports two areas of work in gas ion spectroscopy, each investigation in itself worthy of a PhD. The first study uses tunable vacuum-ultraviolet radiation from a synchrotron to identify negative ions from twenty four photoexcited polyatomic molecules in the gas phase. From these experiments, Matthew collects a vast amount of data and summarises and reviews ion-pair formation from polyatomic molecules. The second study is on selected ion flow tube mass spectrometry. Matthew investigates the reactions of cations and anions with ethene, monofluoroethene, 1,1-difluoroethene and tetrafluoroethene. In this study Matthew tries to explain why certain products are formed preferentially over other products at a microscopic level of understanding. The data recorded in this thesis form the most comprehensive collection of information about anion formation and are the basis of a review and numerous articles in specialist journals. ER -