A rhodamine-benzothiazole conjugated sensor for colorimetric, ratiometric and sequential recognition of copper(II) and sulfide in aqueous media

作者：Tang Lijun^*; Dai Xin; Wen Xin; Wu Di; Zhang Qiang

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2015, 139: 329-334.

DOI：10.1016/j.saa.2014.12.055

• Rhodamine
• Benzothiazole
• Copper(II) recognition
• Sulfide recognition
• Colorimetric

A new rhodamine-benzothiazole conjugated colorimetric sensor 1 that exhibits sequential recognition to Cu2+ and S2- in CH3CN/HEPES buffer (v/v = 1:1, HEPES 10 mM, pH = 7.0) solution has been developed. Sensor 1 displays highly selective and sensitive recognition to Cu2+ with a ratiometric behavior, and the resultant 1-Cu2+ complex can act as a highly selective S2- sensor via Cu2+ displacement approach. The Cu2+ and S2- recognition processes are rapid and reversible, and the Cu2+ and S2- inputs can result in an INHIBIT logic gate.

• 出版日期2015-3-15
• 单位渤海大学