INOR 468 |
| The selective detection of specific anions or whole acids/metal salts (HX or MX) in the presence of potentially competitive contaminants represents a fundamental chemical challenge with applications in sensor devices and in separation technologies. Recently we have been investigating anion and whole acid receptor systems based on an array of Lewis acidic boron centres. Thus, polyfunctional systems containing one to four binding sites have been investigated for selective fluoride sensing, and mixed Lewis acid/base systems have been examined for the detection of the conjugate acid HF. Typically, colorimetric, fluorimetric or electrochemical reporters have been incorporated within the receptor, with weakly Lewis acidic binding sites being key to achieving selectivity of anion binding. Additionally, the careful design of the receptor framework is shown to be vital in maintaining its chemical integrity in host/guest complexes.
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Polyfunctional Organoboranes: From Molecules to Materials
1:30 PM-5:40 PM, Monday, 11 September 2006 Moscone Center -- Room 302, Oral
Division of Inorganic Chemistry |
