ELECTROCHEMICAL AND F-19 NMR DETECTION OF ANIONS, ION-PAIRS, AND A ZWITTERIONIC AMINO ACID WITH A FERROCENE-BASED HETERO-DITOPIC RECEPTOR BEARING O-(CARBOXAMIDO)TRIFLUOROACETOPHENONE AND CROWN-ETHER LIGANDS
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- Title
- ELECTROCHEMICAL AND F-19 NMR DETECTION OF ANIONS, ION-PAIRS, AND A ZWITTERIONIC AMINO ACID WITH A FERROCENE-BASED HETERO-DITOPIC RECEPTOR BEARING O-(CARBOXAMIDO)TRIFLUOROACETOPHENONE AND CROWN-ETHER LIGANDS
- Authors
- Miyaji, H; Kim, DS; Chang, BY; Park, SM; Ahn, KH
- Date Issued
- 2008-12-20
- Publisher
- KOREAN CHEMICAL SOC
- Abstract
- Described are the electrochemical and F-19 NMR detection of anions, ion-pairs, and zwitterionic L-phenylalanine with the ferrocene-based hetero-ditopic receptor. A cyclic voltammetric study shows that the receptor induces a positive shift in the ferrocene oxidation potential upon binding of a potassium cation, whereas it induces a negative shift upon binding of an acetate anion, both of which can be reversed. Also, the redox potential shifts were dependent on ion-pairing interactions. Furthermore, direct detection of ail amino acid in its zwitterionic form is demonstrated by F-19 NMR spectroscopy in aqueous media.
- Keywords
- Electrochemical detection; Anions; Ion-pairs; Zwitterionic amino acid; o-(Carboxamido)trifluoroacetophenone; MOLECULAR RECOGNITION; SELECTIVE RECOGNITION; LIQUID-MEMBRANE; BINDING; SENSORS; HOST; SOLVENT; CYANIDE; SALTS; CHEMOSENSORS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28537
- ISSN
- 0253-2964
- Article Type
- Article
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 29, no. 12, page. 2355 - 2360, 2008-12-20
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