Optical Chemosensor for Ag+, Fe3+, and Cysteine: Information Processing at Molecular Level
- 22 December 2010
- journal article
- research article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 13 (3), 366-369
- https://doi.org/10.1021/ol102543e
Abstract
A thiacalix[4]arene based chemosensor 3 bearing two pyrene groups has been synthesized which demonstrates ratiometric sensing with Ag+ and fluorescence quenching with Fe3+ ions in mixed aqueous media. The ‘in situ’ prepared Ag+ and Fe3+ complexes showed high selectivity toward cysteine. The molecular switching between three chemical inputs (Ag+, Fe3+, cysteine) results in various molecular logic gates which have been integrated sequentially to generate a sequential information processing device.Keywords
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