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http://hdl.handle.net/10057/843
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| Title: | 4-oxocyclohexadienylidene porphyrinogen as an electrochemical anion receptor |
| Authors: | Schumacher, Amy Lea
D'Souza, Francis |
| Issue Date: | 27-Apr-2007 |
| Publisher: | Wichita State University. Graduate School. |
| 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 |
| Series/Report no.: | GRASP
v.3 |
| 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. |
| 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. |
| URI: | http://hdl.handle.net/10057/843 |
| Appears in Collections: | CHEM Graduate Student Conference Papers
Proceedings: 3rd Annual Symposium: Graduate Research and Scholarly Projects
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| grasp164.pdf | Conference paper | 157Kb | Adobe PDF | View/Open |
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