Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2010, Issue 24, Pages 4700-4704Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201000581
Keywords
Calixarenes; Chromogenic sensors; Logic gates; Host guest systems; Click chemistry
Categories
Funding
- National Science Council (NSC), Taiwan
- Ministry of Education (MOE)
- Ministry of Education, Taiwan
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A bifunctional chromogenic calix[4]arene 3, which contains both triazoles and hydroxy azophenols as both cationic and anionic recognition sites and the azophenol moiety as a coloration unit, was designed and synthesized. The recognition of Ca2+ by 3 gave rise to a marked colour change from greenish to bright yellow, whereas the recognition of F- by 3 showed a colour change from light green to bluish. The colour changes of 3 by the inputs of Ca2+ and F- have been implemented to construct a combinational logic circuit at the molecular level.
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