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HIGH RESOLUTION ELECTRONIC SPECTROSCOPY OF LARGE POLYATOMIC MOLECULES: STRUCTURES, INTERACTIONS AND ELECTRONIC DISTRIBUTIONS

Yi, John Taejong (2005) HIGH RESOLUTION ELECTRONIC SPECTROSCOPY OF LARGE POLYATOMIC MOLECULES: STRUCTURES, INTERACTIONS AND ELECTRONIC DISTRIBUTIONS. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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Abstract

Rotationally resolved fluorescence excitation spectroscopy has been used to investigate both the structures and electronic characteristics of biologically relevant polyatomic molecules and the clusters in the environment of a supersonic jet expansion. The high resolution spectra have provided accurate and precise three dimensional molecular structures for both ground (S0) and excited (S1) electronic states, and the corresponding electronic transition moment orientation. These studies gave detailed information about the preferred geometrical conformation of the molecules and have allowed insightful information of their interactions with water. Subsequently, the parameters extracted from the fit of these electronic spectra to characterize the electronic landscape for these biomolecules allow an unambiguous description of the conformational landscape. In addition, these experiments have allowed us to investigate the factors that influence the electronic organization upon excitation. All of this information is extended to the development of models to understand and characterize systems of chemical and biological essence.

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Details

Item Type: University of Pittsburgh ETD
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Yi, John Taejongjyi@chemistry.ohio-state.edu
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairPratt, David Wpratt@pitt.eduPRATT
Committee MemberJordan, Kennethjordan@pitt.eduJORDAN
Committee MemberPeteanu, Lindapeteanu@andrew.cmu.edu
Committee MemberPetoud, Stephanespetoud@pitt.eduSPETOUD
Date: 10 October 2005
Date Type: Completion
Defense Date: 6 July 2005
Approval Date: 10 October 2005
Submission Date: 13 August 2005
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Institution: University of Pittsburgh
Schools and Programs: Dietrich School of Arts and Sciences > Chemistry
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: conformers; fluorescence excitation; Rotational
Other ID: http://etd.library.pitt.edu/ETD/available/etd-08132005-180900/, etd-08132005-180900
Date Deposited: 10 Nov 2011 19:59
Last Modified: 15 Nov 2016 13:49
URI: http://d-scholarship-dev.library.pitt.edu/id/eprint/9079

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