http://repository.iitr.ac.in/handle/123456789/25130| Title: | A multi-receptor fluorescence signaling system exhibiting enhancement selectively in presence of Na(I) and Tl(I) ions |
| Authors: | Sadhu, Kalyan Kumar Bag B. Bharadwaj P.K. |
| Published in: | Journal of Photochemistry and Photobiology A: Chemistry |
| 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. © 2006 Elsevier B.V. All rights reserved. |
| Citation: | Journal of Photochemistry and Photobiology A: Chemistry, 185(44622): 231-238 |
| URI: | https://doi.org/10.1016/j.jphotochem.2006.06.014 http://repository.iitr.ac.in/handle/123456789/25130 |
| Issue Date: | 2007 |
| Keywords: | Cryptand Fluorescence enhancement Logic functions Macrocycle Metal ion specificity |
| ISSN: | 10106030 |
| Author Scopus IDs: | 15726375100 7004828850 7005577636 |
| Author Affiliations: | Sadhu, K.K., Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India Bag, B., Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India Bharadwaj, P.K., Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India |
| Funding Details: | Financial support for this work from the Department of Science and Technology, New Delhi, India is gratefully acknowledged. K.K.S. thanks CSIR, New Delhi, India for a Junior Research Fellowship. Department of Science and Technology, Ministry of Science and Technology, India, डीएसटी; Council of Scientific and Industrial Research, India, CSIR |
| Corresponding Author: | Bharadwaj, P.K.; Department of Chemistry, , Kanpur, 208016, India; email: pkb@iitk.ac.in |
| Appears in Collections: | Journal Publications [CY] |
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