کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1304022 | 1498975 | 2012 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A bezoimidazole-based highly selective and low-background fluorescent sensor for Zn2 + A bezoimidazole-based highly selective and low-background fluorescent sensor for Zn2 +](/preview/png/1304022.png)
In this article, a new benzoimidazole based Zn2 + fluorescence sensor DABI has been prepared. The sensor displays a rapid and a linear response to Zn2 + with a red-shifted 100-fold turn-on signal from the dark background. The presence of other metal ions especially Cd2 + does not interfere with its Zn2 + response. Molecular modeling study suggests that the Zn2 +-induced red shift of emission and fluorescence turn-on of DABI could be correlated to the coplanation of two aryl planes of 2-aryl substituted benzoimidazole.
A new benzoimidazole based Zn2 + fluorescence sensor DABI has been prepared and the sensor displays a rapid and a linear response to Zn2 + with a 100-fold turn-on signal from the dark background. The presence of other metal ions especially Cd2 + does not interfere with its Zn2 + response.Figure optionsDownload as PowerPoint slideHighlights
► DABI displays a Zn2+-induced 100-fold turn-on signal from the dark background.
► DABI shows high Zn2+ selectivity in CH3CN solution.
► The Zn2+ sensing behavior of DABI was explained well via molecular modeling study.
Journal: Inorganic Chemistry Communications - Volume 15, January 2012, Pages 176–179