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Bimodal Calix[2]triazole[2]arene Fluorescent Ionophore

Authors
Cho, JiheePradhan, TuhinKim, Jong SeungKim, Sanghee
Issue Date
16-8월-2013
Publisher
AMER CHEMICAL SOC
Citation
ORGANIC LETTERS, v.15, no.16, pp.4058 - 4061
Indexed
SCIE
SCOPUS
Journal Title
ORGANIC LETTERS
Volume
15
Number
16
Start Page
4058
End Page
4061
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/102439
DOI
10.1021/ol401469z
ISSN
1523-7060
Abstract
Pyrene-appended calix[2]triazole[2]arene capable of bimodal sensing has been synthesized. Upon addition of Zn2+ (or Cd2+), it selectively exhibits an enhanced monomeric emission (similar to 13-20-fold) over other metal ions. On the other hand, it displays excellent selectivity for Fe2+ over other metal ions (even over Fe3+) from the angle of excimeric emissions (10-fold enhancement). Density Functional Theory (DFT) based theoretical calculations distinguished the bimodal activity of the probe and supported the experimental observations.
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