4-oxocyclohexadienylidene porphyrinogen as an electrochemical anion receptor

Loading...
Thumbnail Image
Authors
Schumacher, Amy Lea
D'Souza, Francis
Advisors
Issue Date
2007-04-27
Type
Conference paper
Keywords
Research Projects
Organizational Units
Journal Issue
Citation
Schumacher,Amy Lea & Francis D'Souza.(2007) 4-oxocyclohexadienylidene porphyrinogen as an electrochemical anion receptor. In Proceedings : 3rd Annual Symposium : Graduate Research and Scholarly Projects. Wichita, KS : Wichita State University, p.163-164
Abstract

Sensitive and selective detection of biologically and environmentally important anions has been a vast growing field in supramolecular chemistry [1,2]. Much research has been devoted to designing sensors that can selectively recognize anions. Recently, we have reported an anionic and solvatochromatic sensor [5]. (Scheme 1) In this investigation, the effect of various anions on the redox states of the porphyrinogen and its N-substituted analogues were studied. Cyclic voltammetry (CV) was employed to probe the changes in the redox potentials of the receptors upon complexation with anions. Upon addition of F- to porphyrinogen, a cathodic shift of ~520 mV corresponding to 1.F-complex was observed. The F- ion had the greatest effect on the porphyrinogen redox potentials while other anions gave modest shifts. DFT computational studies on the anion binding correlated well with the electrochemical results.

Table of Contents
Description
Paper presented to the 3rd Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 27, 2007.
Research completed at the Department of Chemistry, College of Liberal Arts and Sciences.
Publisher
Wichita State University. Graduate School.
Journal
Book Title
Series
GRASP
v.3
PubMed ID
DOI
ISSN
EISSN