Details

Autor(en) / Beteiligte

• Lee, Hee Joo
• Park, Sung Jun
• Sin, Hyen Je
• Na, Yu Jeong
• Kim, Cheal

Titel

A selective colorimetric chemosensor with an electron-withdrawing group for multi-analytes CN− and F−Electronic supplementary information (ESI) available. See DOI: 10.1039/c5nj00169b

Erscheinungsjahr

2015-05

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A new colorimetric chemosensor with an electron-withdrawing group (-NO 2 ) 1 for the detection of CN − and F − has been simply developed. Receptor 1 showed selectively colorimetric responses to CN − in aqueous solution and F − in acetonitrile, respectively. An obvious color change of 1 from yellow to colorless was observed for CN − through a nucleophilic addition mechanism, while F − was detected through a deprotonating mechanism with a distinct color change from pale yellow to orange. The binding modes of receptor 1 with two analytes (CN − and F − ) were proposed to be 1 : 1, based on the Job plot, 1 H NMR titration, and ESI-mass spectrometry analysis. A colorimetric chemosensor with an electron-withdrawing group (-NO 2 ) 1 for the detection of CN − and F − was developed.