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EVGENIIA_ETD_UPLOAD_APRIL_2015.pdf (15.46 MB)
ETD Abstract Container
Abstract Header
Ultrafast Photochemistry of Polyhalogenated Methanes and Non-Metals
Author Info
Butaeva, Evgeniia
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1429224755
Abstract Details
Year and Degree
2015, Doctor of Philosophy (Ph.D.), Bowling Green State University, Photochemical Sciences.
Abstract
A molecular level understanding of photodynamics in condensed media is one of the recent challenges to chemical physics. This is because of the intrinsic complexity of liquid-phase photophysical and photochemical singularities arising from competing intra- and intermolecular processes. Such processes often take place on a timescale of a few femtoseconds (10-15 s) to several tens of picoseconds (10-12 s). In this work, the model photochemical processes used to investigate ultrafast photo-induced reaction dynamics in solution. The model compounds are non-metal/metal polyhalogenated small molecules. The gas-phase photochemistry of these small molecules is thoroughly examined, which also enables to establish the connection between liquid and gas phase dynamics. Furthermore, contrary to the scrupulously investigated di- and triatomic molecular systems, more vibrational degrees of freedom are accessible both for the model parent molecules, nascent polyatomic radical species, and isomer photoproducts. Therefore, a detailed mapping of the photochemical reaction paths of these molecular systems can possibly reveal different couplings between the reactive modes and other dark states in a far-from-equilibrium situation. The complexity of the encountered ultrafast events requires the utilization of several experimental and computational approaches. Results of femtosecond transient absorption, picosecond transient resonance Raman, excited state ab initio calculations are discussed in this context.
Committee
Alexander Tarnovsky, Dr. (Advisor)
Haowen Xi, Dr. (Other)
Marshall Wilson , Dr. (Committee Chair)
Alexey Zayak, Dr. (Committee Chair)
Pages
218 p.
Subject Headings
Chemistry
;
Physical Chemistry
Keywords
Ultrafast transient absorption spectroscopy
;
Ab initio calculations
;
Small molecules
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Citations
Butaeva, E. (2015).
Ultrafast Photochemistry of Polyhalogenated Methanes and Non-Metals
[Doctoral dissertation, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1429224755
APA Style (7th edition)
Butaeva, Evgeniia.
Ultrafast Photochemistry of Polyhalogenated Methanes and Non-Metals.
2015. Bowling Green State University, Doctoral dissertation.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1429224755.
MLA Style (8th edition)
Butaeva, Evgeniia. "Ultrafast Photochemistry of Polyhalogenated Methanes and Non-Metals." Doctoral dissertation, Bowling Green State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1429224755
Chicago Manual of Style (17th edition)
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Document number:
bgsu1429224755
Download Count:
348
Copyright Info
© 2015, all rights reserved.
This open access ETD is published by Bowling Green State University and OhioLINK.