A new Zn2+ chemosensor based on functionalized 8-hydroxylquinoline

作者：Wang Rui Min; Huang Shao Bin^*; Zhao Na; Chen Zhong Ning

来源：INORGANIC CHEMISTRY COMMUNICATIONS, 2010, 13(12): 1432-1434.

DOI：10.1016/j.inoche.2010.08.009

• Fluorescence
• 8-Hydroxylquinoline
• Sensor
• Zinc

A new fluorescent Zn2+ chemosensor (3) based on functionalized 8-hydroxylquinoline has been synthesized and characterized. Compound 3 shows weak fluorescence in CH3CN-HEPES buffer solution (50 mM, pH 7.2 v/v = 1:9), but the fluorescence is significantly enhanced upon binding to Zn2+ through a zinc(II)-catalyzed ester hydrolysis reaction to form a highly emissive zinc(II) complex. This suggests that 3 can be served as a typical "switch-on" chemosensor with high selectivity for Zn2+ over other metal ions.

• 单位
  华南理工大学; 中国科学院福建物质结构研究所