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A new rhodamine-based dual chemosensor for Al3+ and Cu2+

Authors
Journal
Tetrahedron Letters
0040-4039
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/j.tetlet.2014.07.040
Keywords
  • Colorimetric
  • Fluorometric
  • Dual Chemosensor
  • Rhodamine
  • Al3+
  • Cu2+
Disciplines
  • Design

Abstract

Abstract A new rhodamine B derivative bearing a hydrazone group has been designed and prepared. The synthesized colorimetric and fluorescent molecular chemosensor can be used as a dual probe, selectively detecting Al3+ and Cu2+ in acetonitrile solution by monitoring changes in the absorption and fluorescence spectral patterns. The results show that Al3+ ions can induce a greater fluorescence enhancement, while the addition of Cu2+ ions induces a strong UV–vis absorption enhancement with weak fluorescence. The limits of detection of Cu2+ and Al3+ were estimated to be 2.9×10−7M and 8.3×10−9M, respectively.

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