The focus of this dissertation is the study of the photodissociation dynamics of
halogen oxide species (XO, X = Cl, Br, I). These radical species are known to be
important in stratospheric and tropospheric ozone depletion cycles. They are also useful
benchmark systems for the comparison to current theoretical methods where they
provide insight into the dynamics occurring beyond the Franck-Condon region. These
systems are studied using velocity map ion imaging, a technique that measures velocity
and angular information simultaneously. Photofragment species are state-selectively
ionized for detection using 2+1 REMPI (Resonance Enhanced Multi-Photon Ionization).
The instrumentation employs a molecular beam of the XO radicals formed using
pyrolitic and photolytic methods.
The current work involves the measurement of fundamental physical constants of
the XO species. The bond dissociation energy of IO is measured. Vibrational level
dependent correlated final state branching ratios of the predissociation of the A(^2 II_3/2)
state of ClO and BrO are reported, and comparison to theoretical methods is discussed.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/ETD-TAMU-2009-05-712 |
| Date | 2009 May 1900 |
| Creators | Dooley, Kristin S. |
| Contributors | North, Simon W. |
| Source Sets | Texas A and M University |
| Language | English |
| Detected Language | English |
| Type | Book, Thesis, Electronic Dissertation, text |
| Format | application/pdf |
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