1. Highly effective electrochemical anion sensing based on oxoporphyrinogen
- Author
-
Amy Lea Schumacher, Francis D'Souza, Katsuhiko Ariga, and Jonathan P. Hill
- Subjects
biology ,Chemistry ,Inorganic chemistry ,Conjugated system ,Electrochemistry ,Medicinal chemistry ,Dichlorobenzene ,lcsh:Chemistry ,lcsh:Industrial electrochemistry ,lcsh:QD1-999 ,Stability constants of complexes ,biology.protein ,Amine gas treating ,Cyclic voltammetry ,Anion binding ,Organic anion ,lcsh:TP250-261 - Abstract
The effect of anion binding on the oxidation potential of an anion receptor, N21,N23-dibenzyl-5,10,15,20-(3,5-di-t-butyl-4-oxo-cyclohexa-2,5-dienylidene)porphyrinogen, 1 in o-dichlorobenzene is reported. The anion binding site of 1, at its inner pyrrolic amine hydrogens, is an integral part of the highly conjugated macrocycle, thus predicting larger potential shifts upon anion binding. Accordingly, cathodic shifts up to 600 mV are observed upon anion binding and such potential shifts correlate well with the anion binding constants. Keywords: Electrochemical anion sensing, Porphyrinogen, Cathodic shift, Recognition
- Published
- 2007