K. Ghosh, T. Sarkar
Oct 1, 2012
Citations
0
Influential Citations
6
Citations
Journal
Supramolecular Chemistry
Abstract
A new and an easy-to-make simple benzimidazole-based chemosensor 1, derived from l -valine is reported. The chemosensor effectively recognises Hg2+ ion in the open cleft in CH3CN containing 0.2% DMSO by exhibiting significant enhancement in fluorescence emission. In the selectivity, the steric isopropyl groups in 1 play the key role as confirmed by considering the model compound 2. The ensemble of 1.Hg2+, on the other hand, shows the fluorescence sensing of l -cysteine, homocysteine, and glutathione over the other amino acids with no thiol group in aq. DMSO (DMSO:H2O = 4:1, v/v).