Author/Authors :
Wang، نويسنده , , Pengfei and Onozawa-Komatsuzaki، نويسنده , , Nobuko and Himeda، نويسنده , , Yuichiro and Sugihara، نويسنده , , Hideki and Arakawa، نويسنده , , Hironori and Kasuga، نويسنده , , Kazuyuki، نويسنده ,
Abstract :
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 Zn2+ ion, while most of other transition metal ions caused complete quenching.
Keywords :
fluorescence , chelation , Pyrazolines , Zinc
