A novel colorimetric chemosensor PBIOSi has been designed and synthesized. The addition of F to a THF solution of PBIOSi resulted in an obvious color change （from red to green） in a short time because of the specifi...A novel colorimetric chemosensor PBIOSi has been designed and synthesized. The addition of F to a THF solution of PBIOSi resulted in an obvious color change （from red to green） in a short time because of the specific cleavage of Si-O bond in PBIOSi by F-. It was interesting that PBIOSi showed excellent selectivity for F detection over other halides. The UV-Vis absorption and fluorescence were changed linearly with the concentration ofF over the range of 0- 10 μmol/L.展开更多
基金supported by the National Natural Science Foundation of China （Nos. 21272069, 20672035）, the Fundamental Research Funds for the Central Universities and Baihehua Group.
文摘A novel colorimetric chemosensor PBIOSi has been designed and synthesized. The addition of F to a THF solution of PBIOSi resulted in an obvious color change （from red to green） in a short time because of the specific cleavage of Si-O bond in PBIOSi by F-. It was interesting that PBIOSi showed excellent selectivity for F detection over other halides. The UV-Vis absorption and fluorescence were changed linearly with the concentration ofF over the range of 0- 10 μmol/L.
