Faculty Advisor

Connors, Robert E.

Abstract

The effects of different substituent groups as well as protonation on 2,5-dibenzylidene-cyclopentanone and 2,5-bis-(3-phenyl-allylidene)-cyclopentanone spectral properties were investigated. In general, a red shift was observed when moving from hydrogen bonding to acidic media due to protonation and polarity of the molecules. The electron donating substituents promoted fluorescence and decreased the difference in wave numbers between the first and second excited states in both protonated and unprotonated forms. The electron-withdrawing group significantly decreased this difference only in the unprotonated form.

Publisher

Worcester Polytechnic Institute

Date Accepted

January 2003

Major

Chemical Engineering

Project Type

Major Qualifying Project

Accessibility

Restricted-WPI community only

Advisor Department

Chemistry and Biochemistry

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