Bis(Dpa-ZnII) Appended Xanthone: Excitation Ratiometric Chemosensor for Phosphate Anions

Bis(Dpa-ZnII) Appended Xanthone: Excitation Ratiometric Chemosensor for Phosphate Anions

A xanthone‐based chemosensor bears two 2,2′‐dipicolylamine–zinc(II) sites and displays changes in the excitation spectrum at three wavelengths upon binding phosphates (see picture). These changes in the signals arise from the coordination rearrangement of the xanthone fluorophore around the zinc cen...

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Veröffentlicht in:Angewandte Chemie International Edition 2006-08, Vol.45 (33), p.5518-5521
Hauptverfasser: Ojida, Akio, Nonaka, Hiroshi, Miyahara, Yoshifumi, Tamaru, Shun-ichi, Sada, Kazuki, Hamachi, Itaru
Format: Artikel
Sprache:eng
Schlagworte:
anions
Anions - chemistry
coordination modes
Fluorescent Dyes - chemistry
fluorescent probes
Models, Molecular
Molecular Structure
Organometallic Compounds - chemistry
Phosphates - chemistry
sensors
Xanthones - chemistry
zinc
Zinc - chemistry
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Beschreibung
Zusammenfassung:A xanthone‐based chemosensor bears two 2,2′‐dipicolylamine–zinc(II) sites and displays changes in the excitation spectrum at three wavelengths upon binding phosphates (see picture). These changes in the signals arise from the coordination rearrangement of the xanthone fluorophore around the zinc centers, which modulates the photophysical property of the chemosensor, thus enabling ratiometric fluorescent analysis.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200601315