Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 141, Issue 2, Pages 506-510Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2009.07.013
Keywords
Chemosensor; Tripodal; Rhodamine; Cu(II); Hg(II)
Funding
- Foundation of the Governor of Guizhou Province China [200617]
- Talented Person Foundation of Guizhou University [2007039]
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A new flexible tripodal compound 1 linked with three rhodamine groups as fluorophores and recognition sites was synthesized and its sensing behavior toward metal ions was investigated by UV-vis and fluorescence spectroscopy methods. It exhibited excellent selectivity for Cu(II) over miscellaneous metal ions including Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Zn(II), Cd(II), AI(III). Mg(II), Ca(II), Sr(II), Na(I), and K(I). While the fluorescence of the 1-Cu(II) complex could be enhanced significantly upon the addition of Hg(II) compound 1 may therefore be applicable as an OFF-ON fluorescent chemosensor for Cu(II) and Hg(II). (C) 2009 Elsevier B,V. All rights reserved.
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