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Two 1,8-naphthalimide-based proton-receptor fluorescent probes for pH determination

  • Hui-Lu Wu EMAIL logo , Cheng-Yong Chen , Han Zhang , Hong-Ping Peng , Fei Wang , Zai-Hui Yang und Jia-Wen Zhang
Veröffentlicht/Copyright: 2. Februar 2016
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Aus der Zeitschrift Chemical Papers Band 70 Heft 6

Abstract

Two newly synthesised 1,8-naphthalimide-based proton-receptor fluorescent probes N-allyl-4-(4′-N,N-diethylpropionamide-acetamido-piperazinyl)-1,8-naphthalimide I and N-(N,N-dibenzylpro-pionamide-acetamido)-4-allyl-1-piperazinyl-1,8-naphthalimide II were synthesised to monitor the change in pH in such a way that the presence of protons can increase the fluorescence intensity of these compounds. Unlike most of the other pH-sensitive probes reported, the probes possess the obvious advantage of being able to detect stronger acids at pH ≈ 2 and a combination of the two probes could detect a wider pH scale from 1.98 to 6.59; this should be very useful for monitoring the pH of the environment.

Keywords: 1,8-naphthalimide; fluorescence; proton-receptor probes; pH-detecting

Acknowledgements.

The present research received financial support from the National Natural Science Foundation of China (grant no. 21367017) and the Natural Science Foundation of Gansu Province (grant no. 1212RJZA037).

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Received: 2015-6-25
Revised: 2015-9-8
Accepted: 2015-11-11
Published Online: 2016-2-2
Published in Print: 2016-6-1

© 2016 Institute of Chemistry, Slovak Academy of Sciences

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https://doi.org/10.1515/chempap-2016-0006
Schlagwörter für diesen Artikel
1,8-naphthalimide; fluorescence; proton-receptor probes; pH-detecting

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