INOR 777 |
| As part of our continuing interest in the detection of fluoride in aqueous environments, we have recently started to study silicon-based systems that complex or react with fluoride anions. In this presentation, we will report on the synthesis and properties of cationic fluorosilanes of general formula [p-Me3N-C6H4-SiR2F]+ (R = hydrocarbon groups). Such cationic silanes are air-stable but quickly react with fluoride to afford zwitterionic species of general formula p-Me3N-C6H4-SiR2F2. Another strategy involves the fluoride induced de-silylation of derivatives such as p-O2N-C6H4-SiR3. These reactions result in release of the free chromophore and are accompanied by an intense photophysical response. |
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Main Group Chemistry
9:00 AM-12:20 PM, Wednesday, August 22, 2007 BCEC -- 205C, Oral
Division of Inorganic Chemistry |