A New Rhodamine B Derivative As a Colorimetric Chemosensor for Recognition of Copper(II) Ion

Bulletin of the Korean chemical society

Lijun Tang¹  Fangfang Li¹  Raju Nandhakumar¹  Minghui Liu¹ 

关键词: Colorimetric;    Chemosensor;    Rhodamine B;    Copper recognition;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

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.

【 授权许可】

Unknown