Use of a new thiacalix[4]arene derivative bearing two 4-chloro-7-nitrobenzofurazan groups as a colorimetric and fluorescent chemosensor for Ag + and AcO −
作者： Yu Fu , Xi Zeng , Lan Mu , Xue-Kai Jiang , Min Deng
DOI: 10.1016/J.SNB.2012.01.071
关键词:
摘要: Abstract The synthesis and spectroscopic studies of a thiacalix[4]arene-based sensor 1,3-alternate-25,27-bis(2-aminoethoxy)-26,28-bis(2-methoxyethyl)-thiacalix[4]arene linked 4-chloro-7-nitrobenzofurazan (NBD-Cl) are described. properties the compound were evaluated show that it is colorimetric fluorescence for Ag + AcO − . addition results in red shift absorption spectrum sensor, which clearly visible to naked eye, accompanied by strong quenching fluorescence. With , was severely quenched, absorbance increased significantly, with new band appearing at shorter wavelength. This demonstrated multifunctional sensing prepared from novel thiacalix[4]arene highly selective
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