| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 176108 | Dyes and Pigments | 2014 | 8 Pages |
•Two novel rhodamine dimmers linked by a sulfur containing unit were reported.•The dimmers were used to recognize Hg2+ in absolute ethanol solution.•The recognition of Hg2+ with the rhodamine probes in gas phase was also explored.•The rhodamine derivatives permit the fast detection of Hg2+ in aqueous phase.
Two rhodamine dimer compounds exhibiting high selectivity and sensitivity for Hg2+ over other metal cations have been studied in absolute ethanol solution. Increase in the absorption and emission signals with a color change from colorless to pink were observed in both cases. Recognition of Hg2+ with both compounds in the gas phase was also explored. Immobilization of the rhodamine probes in cellulose supported systems to evaluate their efficiency on the fast detection of Hg2+ in aqueous phase was also reported.
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