| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1233128 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2011 | 4 Pages |
Abstract
A new rhodamine-derived Schiff base (RS) was synthesized and its sensing property to metal ions was investigated by UV/vis and fluorescence spectroscopies. Addition of Hg2+ ions to the aqueous solution of RS gave a visual color change as well as significantly fluorescent enhancement, while other ions including Pb2+, Cd2+, Cr3+, Zn2+, Cu2+, Fe2+, Co3+, Ni2+, Ca2+, Mg2+, K+ and Na+ ions did not induce any distinct color/spectral changes, which constituted a Hg2+-selective fluorescent OFF–ON chemosensor. The Hg2+-induced ring-opening of spirolactam of rhodamine in RS resulted in the dual chromo- and fluorogenic observation.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Duong Tuan Quang, Jia-Sheng Wu, Nguyen Dinh Luyen, Tran Duong, Nguyen Dang Dan, Nguyen Chi Bao, Phan Tu Quy,