Haibin Shi, S. Ji, Bing Bian
2007
Citations
0
Influential Citations
36
Citations
Journal
Dyes and Pigments
Abstract
Abstract Spectroscopic studies revealed that 1-(2-benzothiazole)-3-(2-thiophene)-2-pyrazoline derivatives have rather strong affinity toward divalent transition metal ions. In the case of 1-(2-benzothiazole)-3-(2-thiophene)-5-(4-dimethylamine-phenyl)-2-pyrazoline, enhancement of the fluorescence intensity was observed upon addition of the Zn 2+ ion ([Zn 2+ ]/L2 = 100), while most of the other transition metal ions caused complete quenching.