摘要:
The receptors L-1, L-2 and L-3 containing pendant aza-oxa binding sites have been synthesised and their UV-vis spectrum studied in the presence of alkali, alkali-earth and transition metal ions in dioxane. The dye L-3 changes its colour selectively upon Hg2+ addition. (C) 2001 Elsevier Science Ltd. All rights reserved.