Sadhu, Kalyan K. ; Bag, Bamaprasad ; Bharadwaj, Parimal K. (2007) A multi-receptor fluorescence signaling system exhibiting enhancement selectively in presence of Na(I) and Tl(I) ions Journal of Photochemistry and Photobiology A: Chemistry, 185 (2-3). pp. 231-238. ISSN 1010-6030
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.jphotochem.2006.06.014
Abstract
A PET fluorescence signaling system L1 has been synthesized in the 'Receptor1-Spacer-Fluorophore-Spacer-Receptor2' format through attachment of a laterally non-symmetric heteroditopic cryptand and a 4,7,10,13-tetraoxa-1-azacyclopentadecane macrocycle at the 9- and 10-positions of anthracene. The cryptand receptor is derivatized with two 2,4-dinitrobenzene groups to impart structural rigidity. This system exhibits selective fluorescence enhancement in presence of Na(I) and Tl(I) ions simultaneously and mimics the AND logic function. The cryptand receptor also binds a Cu(II) ion outside the cavity and allows L1 to perform as an INHIBIT chemical logic in presence of H+ and Cu(II) ions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Fluorescence Enhancement; Metal Ion Specificity; Cryptand; Macrocycle; Logic Functions |
| ID Code: | 78682 |
| Deposited On: | 23 Jan 2012 03:55 |
| Last Modified: | 23 Jan 2012 03:55 |
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