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3-(2-Pyridyl)-2-pyrazoline derivatives: novel fluorescent probes for Zn2+ ion

✍ Scribed by Pengfei Wang; Nobuko Onozawa-Komatsuzaki; Yuichiro Himeda; Hideki Sugihara; Hironori Arakawa; Kazuyuki Kasuga

Book ID: 104232015
Publisher: Elsevier Science
Year: 2001
Tongue: French
Weight: 106 KB
Volume: 42
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)01970-0

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✦ Synopsis

Spectroscopic studies revealed that 3-(2-pyridyl)-2-pyrazoline derivatives have rather strong affinity toward divalent transition metal ions, but have almost no interaction with alkali and alkaline-earth metal ions. In the case of the 5-(4-cyanophenyl) derivative, enhancement of the fluorescence intensity was observed upon addition of the Zn 2+ ion, while most of other transition metal ions caused complete quenching.

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