Solvent-dependent conformational and fluorescence change of an N-phenylbenzohydroxamic acid derivative bearing two pyrene moieties
作者:Misae Kanai、Tomoya Hirano、Isao Azumaya、Iwao Okamoto、Hiroyuki Kagechika、Aya Tanatani
DOI:10.1016/j.tet.2012.02.012
日期:2012.4
The conformation of N-phenylbenzohydroxamic acid has been reported to change depending on the solvent properties. Here, we newly synthesized N-phenylbenzohydroxamic acid derivative, which contains two pyrene moieties separated from the phenyl rings by ethylene linkers. It showed solvent-dependent conformational change, and its fluorescence was also solvent-dependent, that is, only monomer fluorescence of pyrene was observed in DMSO or DMF, whereas the excimer fluorescence was observed in CH2Cl2 or CHCl3. Thus, the structural characteristics could be converted to fluorescence change as output, which would be a good candidate as a fluorescent sensor. (C) 2012 Elsevier Ltd. All rights reserved.