Abstract
Three structurally similar compounds, 1-3, bearing a fluorescence chromophore to which are appended morpholine, thiomorpholine and methylpiperazine substituents, display opposite fluorescence responses to pH changes, in contrast to that observed for fluorescein; 1 and 2 have extremely high binding selectivity towards Ag+ ions and show completely different fluorescent and colorimetric changes upon addition of Ag+, and the differences are proposed to be associated with different binding modes of 1 and 2 to this metal ion.
| Original language | English |
|---|---|
| Pages (from-to) | 1234-1236 |
| Number of pages | 3 |
| Journal | Chemical Communications |
| Issue number | 10 |
| DOIs | |
| State | Published - 2009 |