An azo dye-coupled benzimidazole-based receptor 1 was synthesized and investigated as a receptor for metal ions in semi-aqueous medium. The receptor recognizes Cu2+ with high selectivity over other metal ions. The resultant complex 1·Cu2+ was found to selectively bind oxalic acid via counter ion displacement.
Bibliographical noteFunding Information:
This work was supported by the Korean and Indian Government for the India-Korea Joint Program of Cooperation in Science & Technology ( NRF-2011-0027710 ) and the CSIR Project (project no: 01(2417)/10/EMR-II). P.S. would like to thank UGC India for her research fellowship.
All Science Journal Classification (ASJC) codes
- Drug Discovery
- Organic Chemistry