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A new detector for metal cations based on the combined effect of photoinduced electron transfer and a light harvesting system

Paper ID Volume ID Publish Year Pages File Format Full-Text
27394 44018 2011 5 PDF Available
Title
A new detector for metal cations based on the combined effect of photoinduced electron transfer and a light harvesting system
Abstract

A new tripod comprising three 1,8-naphthalimide units having different substituents at C-4 of the naphthalimide structure has been synthesized. The new dendron has two 4-ethoxy-1,8-naphthalimide units as an energy donor and a 4-N,N-dimethialaminoethilenidamino-1,8-naphthalimide acceptor to facilitate the donor–acceptor energy transfer. The main photophysical characteristics of the dendron have been studied in organic solvents of different polarity. The established energy transfer efficiency of is about 99% revealing the excellent antenna capacities of the dendron. The fluorescence intensity of the dendron has been studied in an acetonitrile solution in the presence of metal ions of various nature (Cu2+, Co2+, Zn2+, Ni2+, and Pb2+) using two different excitation wavelengths of 365 nm and 435 nm. The detection limit of metal cations has been determined.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights• Synthesis of new dendron containing 1,8-naphthalimide with different substituents at C-4 position. • The new dendron has an antenna effect. • They are an enhance of photoinduced electron transfer by light harvesting systems. • The new dendron is very sensitive for detection of metal cations.

Keywords
1,8-Naphthalimide; Antenna; Detector; Photoinduced electron transfer; Fluorescence
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A new detector for metal cations based on the combined effect of photoinduced electron transfer and a light harvesting system
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 222, Issue 1, 5 July 2011, Pages 288–292
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us