New Application of 2-(4-N-Phenyl-3-thiosemicarbazone)-8-hydroxyquinoline as a Sensor for Relay Recognition of Cu2+ and Sulfide in Aqueous Solution

作者：Tang Lijun^*; Zhou Pei; Huang Zhenlong; Zhao Jia; Cai Mingjun

来源：Bulletin of the Korean Chemical Society, 2013, 34(10): 2905-2908.

DOI：10.5012/bkcs.2013.34.10.2905

• Copper detection
• Sulfide recognition
• Fluorescence
• Quinoline
• Thiosemicarbazone

Fluorescent and colorimetric recognition properties of 2-(4-N-phenyl-3-thiosemicarbazone)-8-hydroxyquinoline (1) in buffered aqueous solution (1% DMSO, HEPES 20 mM, pH = 7.4) have been examined. Sensor 1 displays highly selective and sensitive recognition to Cu2+ with fluorescence "ON-OFF" performance. The in situ formed 1-Cu2+ complex exhibits an excellent selectivity toward sulfide ions with fluorescence "OFF-ON" behavior via Cu2+ displacement approach. Thus, relay recognition of Cu2+ and sulfide by a known molecule 1 has been achieved.

• 出版日期2013-10-20
• 单位渤海大学