New Application of a Known Molecule: Rhodamine B 8-hydroxy-2-quinolinecarboxaldehyde Schiff Base as a Colorimetric and Fluorescent "Off-On" Probe for Copper (II)

作者：Tang, Lijun^*; Guo, Jiaojiao; Cao, Yanhua; Zhao, Ning

来源：Journal of Fluorescence, 2012, 22(6): 1603-1608.

DOI：10.1007/s10895-012-1101-x

• Fluorescence
• Probe
• Copper(II) recognition
• Rhodamine

Rhodamine B 8-hydroxy-2-quinolinecarboxaldehyde Schiff base (1) has been investigated as a colorimetric and fluorescent "off-on" probe for the recognition of Cu2+ in aqueous solution. Probe 1 was synthesized by condensation of rhodamine B hydrazide and 8-hydroxy-2-quinolinecarboxaldehyde, which exhibited good selectivity for Cu2+ among a range of biologically and environmentally important metal ions. The Cu2+ recognition event undergoes a Cu2+ promoted hydrolysis of probe 1 to release rhodamine B and the recognition process is barely interfered by other coexisting metal ions.

• 出版日期2012-11
• 单位渤海大学