Amine Molecular Cages as Supramolecular Fluorescent Explosive Sensors: A Computational Perspective.
Amine Molecular Cages as Supramolecular Fluorescent Explosive Sensors: A Computational Perspective.
复制标题
胺分子笼作为超分子荧光爆炸传感器:计算视角。
DOI:
10.1021/acs.jpcb.6b03059
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
K. Jelfs
中科院分区:
文献类型:
--
作者:
M. Zwijnenburg;E. Berardo;W. Peveler;K. Jelfs
We investigate using a computational approach the physical and chemical processes underlying the application of organic (macro)molecules as fluorescence quenching sensors for explosives sensing. We concentrate on the use of amine molecular cages to sense nitroaromatic analytes, such as picric acid and 2,4-dinitrophenol, through fluorescence quenching. Our observations for this model system hold for many related systems. We consider the different possible mechanisms of fluorescence quenching: Förster resonance energy transfer, Dexter energy transfer and photoinduced electron transfer, and show that in the case of our model system, the fluorescence quenching is driven by the latter and involves stable supramolecular sensor-analyte host-guest complexes. Furthermore, we demonstrate that the experimentally observed selectivity of amine molecular cages for different explosives can be explained by the stability of these host-guest complexes and discuss how this is related to the geometry of the binding site in the sensor. Finally, we discuss what our observations mean for explosive sensing by fluorescence quenching in general and how this can help in future rational design of new supramolecular detection systems.
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影响因子:
29.4
作者:
Brutschy, Malte;Schneider, Markus W.;Waldvogel, Siegfried R.
通讯作者:
Waldvogel, Siegfried R.
影响因子:
41.2
作者:
Chen, Linjiang;Reiss, Paul S.;Cooper, Andrew I.
通讯作者:
Cooper, Andrew I.
影响因子:
8.6
作者:
Kewley, Adam;Stephenson, Andrew;Cooper, Andrew I.
通讯作者:
Cooper, Andrew I.
DOI:
10.1002/wcms.1162
发表时间:
2014-03-01
影响因子:
11.4
作者:
Furche, Filipp;Ahlrichs, Reinhart;Weigend, Florian
通讯作者:
Weigend, Florian