Anion recognition and sensing in organic and aqueous media using luminescent and colorimetric sensors

Gunnlaugsson, Thorfinnur, Glynn, Mark, Tocci, Gillian, Kruger, Paul and Pfeffer, Frederick 2006, Anion recognition and sensing in organic and aqueous media using luminescent and colorimetric sensors, Coordination chemistry reviews, vol. 250, no. 23-24, pp. 3094-3117.

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Title Anion recognition and sensing in organic and aqueous media using luminescent and colorimetric sensors
Author(s) Gunnlaugsson, Thorfinnur
Glynn, Mark
Tocci, Gillian
Kruger, Paul
Pfeffer, Frederick
Journal name Coordination chemistry reviews
Volume number 250
Issue number 23-24
Start page 3094
End page 3117
Publisher Elsevier BV
Place of publication Amsterdam, Netherlands
Publication date 2006-12
ISSN 0010-8545
1873-3840
Keyword(s) anion sensing
acetate
dihydrogenphosphate
fluoride
urea
thiourea
deprotonation
bifluoride
HF2
fluorescence sensors
colorimetric sensors
supramolecular chemistry
PET
photoinduced electron transfer
lanthanide luminescence
self-assembly
NMR
Summary This review article focuses primarily on the work carried in our laboratories over the last few years using luminescent and colorimetric sensors, where the anion recognition occurs through hydrogen bonding in organic or aqueous solvents. This review begins with the story of the discovery of fluorescent photoinduced electron transfer (PET) sensors for anions using charged neutral urea or thiourea receptors where both fluorescent and NMR spectroscopic methods monitored anion recognition. This work led to the development of dual luminescent and colorimetric anion sensors based on the use of the ICT based naphthalimide chromophore, where ions such as fluoride gave rise to changes in both the fluorescence and the absorption spectra of the sensors, but at different concentrations. Here, the former changes were due to hydrogen bonding interactions, whereas the latter was due to the deprotonation of acidic protons, giving rise to the formation of the bifluoride anion (HF2−). Modification of the 4-amino-l,8-naphthalimide moiety has facilitated the formation of colorimetric anion sensors that work both in organic or aqueous solutions. Such charge neutral receptor motifs have also been incorporated into organic scaffolds with norbomyl and calixarene backbones, which have enabled us to produce anion directed self-assembled structures.
Notes Available online 30 August 2006
Language eng
Field of Research 030302 Nanochemistry and Supramolecular Chemistry
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2006, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30009042

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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