A Ratiometric Fluorescent On-Off Zn2+ Chemosensor Based on a Tripropargylamine Pyrene Azide Click Adduct

Autor(en): Ingale, Sachin A.
Seela, Frank
Stichwörter: CD2+; Chemistry; Chemistry, Organic; IONS; OLIGONUCLEOTIDES; PHOTOPHYSICS; PROBE; SENSOR; ZINC
Erscheinungsdatum: 2012
Herausgeber: AMER CHEMICAL SOC
Journal: JOURNAL OF ORGANIC CHEMISTRY
Volumen: 77
Ausgabe: 20
Startseite: 9352
Seitenende: 9356
Zusammenfassung: 
A new, easy-to-prepare and highly selective pyrene-linked tris-triazole amine fluorescent chemosensor has been designed from tripropargylamine and pyrene azide using Cu(I)-catalyzed click chemistry. The fluorescence on-off sensor 1 is highly selective for Zn2+ displaying a ratiometric change in emission. The relative intensity ratio of monomer to excimer fluorescence (M-376/E-465) of the sensor increases 80-fold upon the addition of 10 equiv of Zn2+ ions (with a detection limit of 0.2 mu M).
ISSN: 00223263
DOI: 10.1021/jo3014319

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