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Some chiroptical effects on the photophysics and photochemistry of tris(bipyridine)ruthenium(II) ions in solution Sparks, Robert Henry

Abstract

The photoracemization of Ru(bipy)₃⁺⁺ in aqueous solution was studied. Quenching studies show the involvement of the (CT)³ Ru(bipy)₃⁺⁺ in the mechanism of racemization and the low quantum yield (2.9 x 10⁻⁴) shows that this state is asymmetric. Quenching studies show no increase of racemization rate for Ru(I) or (III) species. The temperature dependence gives evidence for a dissociative racemization mechanism. Quenching with Co(acac)₃ shows chiroselective electron transfer as measured by the resulting photochemistry.

Item Metadata

Title	Some chiroptical effects on the photophysics and photochemistry of tris(bipyridine)ruthenium(II) ions in solution
Creator	Sparks, Robert Henry
Publisher	University of British Columbia
Date Issued	1979
Description	The photoracemization of Ru(bipy)₃⁺⁺ in aqueous solution was studied. Quenching studies show the involvement of the (CT)³ Ru(bipy)₃⁺⁺ in the mechanism of racemization and the low quantum yield (2.9 x 10⁻⁴) shows that this state is asymmetric. Quenching studies show no increase of racemization rate for Ru(I) or (III) species. The temperature dependence gives evidence for a dissociative racemization mechanism. Quenching with Co(acac)₃ shows chiroselective electron transfer as measured by the resulting photochemistry.
Genre	Thesis/Dissertation
Type	Text
Language	eng
Date Available	2010-03-03
Provider	Vancouver : University of British Columbia Library
Rights	For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
DOI	10.14288/1.0060824
URI	http://hdl.handle.net/2429/21467
Degree	Master of Science - MSc
Program	Chemistry
Affiliation	Science, Faculty of; Chemistry, Department of
Degree Grantor	University of British Columbia
Campus	UBCV
Scholarly Level	Graduate
Aggregated Source Repository	DSpace

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UBC_1979_A6_7 S73.pdf -- 1.58MB

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For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.