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A ratiometric and exclusively selective CuII fluorescent probe based on internal charge transfer (ICT) by Xiufu Chen; Jingyun Wang; Jingnan Cui; Zhaochao Xu; Xiaojun Peng is a Chemistry article available to read on EtoBox.

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A new ratiometric and exclusively selective fluorescent probe N-butyl-4,5-di[N-(phenyl)-2-(amino)acetamino]-1,8-naphthalimide (1) was designed and synthesized on the basis of the mechanism of internal charge transfer (ICT). The probe 1 showed exclusively selectivity for Cu II in the presence of a variety of other metal ions in aqueous ethanol solutions and the binding mode of probe 1 with Cu II was 1:1 metaleligand complex. Fluorescent emission spectra of probe 1 in the presence of Cu II showed a 50 nm blue shift, which is from 521 nm to 471 nm. Furthermore, probe 1 shows the same fluorescent change with the Cu II in living cells.

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Author

Xiufu Chen; Jingyun Wang; Jingnan Cui; Zhaochao Xu; Xiaojun Peng

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0040-4020)

Published

2011

Language

EN

Field

Chemistry (Physical Sciences)