Journal
LUMINESCENCE
Volume 23, Issue 1, Pages 28-31Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/bio.1012
Keywords
ratiometry; fluorescent chemosensor; Cu(II); oxidation
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A new rhodamine derivative, rhodamine B 4-N,N-dimethylaminobenzaldehyde hydrazone (1), was designed for ratiometric sensing of Cu(II) selectively. A red-shift from 515 to 585 nm was observed in the fluorescence spectrum when Cu(II) was added to 1 in acetonitrile. Other metal ions of interest showed no ratiometric response. The interaction between Cu(II) and 1 was found to be the Cu(II)-induced oxidation of 1. Copyright (c) 2008 John Wiley & Sons, Ltd.
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