Title of article
A bis(m-phenylene)-32-crown-10-based fluorescence chemosensor for paraquat and diquat
Author/Authors
Zhang، نويسنده , , Jinqiang and Zhai، نويسنده , , Chunxi and Wang، نويسنده , , Feng and Zhang، نويسنده , , Chuanju and Li، نويسنده , , Shijun and Zhang، نويسنده , , Mingming and Li، نويسنده , , Ning and Huang، نويسنده , , Feihe، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2008
Pages
4
From page
5009
To page
5012
Abstract
A bis(m-phenylene)-32-crown-10-based host to which are covalently attached two pyrene groups as fluorescence chromophores was designed and synthesized. Its complexations with paraquat (PQ) and diquat (DQ) were studied by proton NMR, ESI mass spectrometry, and UV–vis spectroscopy. Its chemosensor behavior to PQ and DQ was revealed by fluorescence emission spectroscopy. This new host can function as a fluorescence chemosensor for PQ and DQ due to the inhibition of photoinduced electron transfer between the bis(m-phenylene)-32-crown-10 moiety and the pyrene groups by the addition of PQ (or DQ).
Keywords
Crown ether , Host–guest system , Chemosensor , paraquat , Diquat
Journal title
Tetrahedron Letters
Serial Year
2008
Journal title
Tetrahedron Letters
Record number
1860632
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