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A reversible fluorescent Hg2+/K+ switch that works as keypad lock in the presence of F− ion

2009; Royal Society of Chemistry; Issue: 47 Linguagem: Inglês

10.1039/b914821c

1364-548X

M. Kumar, Rajesh Kumar, Vandana Bhalla,

Luminescence and Fluorescent Materials

A thiacalix[4]arene based fluorescent chemosensor 3 of 1,3-alternate conformation bearing two dansyl groups and a crown-5 ring behaves as an "On–Off" reversible switch for two chemical inputs Hg2+ and K+ ions and mimics a molecular level keypad lock in the presence of F− ions.