A New Rhodamine B Derivative As a Colorimetric Chemosensor for Recognition of Copper(II) Ion
A New Rhodamine B Derivative As a Colorimetric Chemosensor for Recognition of Copper(II) Ion
Lijun Tang(Bohai University); Fangfang Li(Bohai University); Minghui Liu(Bohai University); Raju Nandhakumar(Karunya University)
31권 11호, 3212~3216쪽
초록
A new rhodamine-based sensor 1 was designed and synthesized by incorporating rhodamine B and benzimidazole moieties. Sensor 1 exhibits high selectivity and sensitivity to Cu2+ in CH3CN-water solution (HEPES buffer, pH = 7.0)with an obvious color change from colorless to pink. Other metal ions such as Hg2+, Ag+, Pb2+, Sr2+, Ba2+, Cd2+, Ni2+, Co2+,Fe2+, Mn2+, Cu2+, Zn2+, Ce3+, Mg2+, K+ and Na+ had no such color change and have no significant influence on Cu2+ recognition process. The interaction of Cu2+ and sensor 1 was proven to adopt a 1:1 binding stoichiometry and the recognition process is reversible.
Abstract
A new rhodamine-based sensor 1 was designed and synthesized by incorporating rhodamine B and benzimidazole moieties. Sensor 1 exhibits high selectivity and sensitivity to Cu2+ in CH3CN-water solution (HEPES buffer, pH = 7.0)with an obvious color change from colorless to pink. Other metal ions such as Hg2+, Ag+, Pb2+, Sr2+, Ba2+, Cd2+, Ni2+, Co2+,Fe2+, Mn2+, Cu2+, Zn2+, Ce3+, Mg2+, K+ and Na+ had no such color change and have no significant influence on Cu2+ recognition process. The interaction of Cu2+ and sensor 1 was proven to adopt a 1:1 binding stoichiometry and the recognition process is reversible.
- 발행기관:
- 대한화학회
- 분류:
- 화학