Chemistry and Chemical Biology ETDs

Publication Date

6-26-1978

Abstract

A group of 15 compounds, all structurally related to trans­stilbene have been studied in systems of electrogenerated chemiluminescence (ECL). The compounds are substituted 2-phenyl indenes, dihydronapthalenes, and dihydrophenanthrenes. Absorption and fluorescence spectra, fluorescence quantum yield, cyclic voltammetry, and ECL were obtained for each compound. The ECL experiments were set up as single and mixed systems which used tri­para-tolylamine as the source of cation radicals. Each mixed system was studied in two different solvents, which were acetonitrile and a 1:1 mixture of acetonitrile and benzene. Single systems were studied only in the acetonitrile-benzene solution. Emissions at wavelengths longer than the fluorescence peak maximum were observed in the single and mixed systems in both solvents. Plots of the longer wavelength emission energy versus the first reduction potential of the compound were linear. This evidence and the fluorescence spectra obtained before and after each ECL experiment support the conclusion that such emissions are from an excited state complex. This in turn supports the model of electron transfer between the two charged radical species through a collisional interaction, rather than an outer sphere, or long range electron transfer.

Language

English

Document Type

Thesis

Degree Name

Chemistry

Level of Degree

Masters

Department Name

Department of Chemistry and Chemical Biology

First Committee Member (Chair)

Su-Moon Park

Second Committee Member

Thomas Evan Jones

Third Committee Member

Thomas Michael Niemczyk

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