INOR 672 |
| Luminescence chemosensors are a powerful tool for providing selective and sensitive detection of a variety of chemical stimulus. Hemilabile coordination complexes have recently been used as a new type of sensor that exhibits reversible binding in the presence of small molecule analytes. It has also been demonstrated that phosphine-ether hemilabile ligands coordinated to ruthenium (II) bipyridyl systems produce luminescent signals that change upon analyte-coordination. In the presence of H2O, phosphine-ether hemilabile ruthenium complexes have shown spectral shifts in the MLCT band of [Ru(bpy)2POMe]+2 of 8nm to the red when titrated against H2O 5% (v/v). The results suggest many sensing applications for these hemilabile complexes, for example as humidity and carbon monoxide sensors. Ongoing research within this group aims to characterize the absorbance properties, emission response, and define analyte detection parameters. While the literature has previously focused in these areas, 31P{1H} NMR will be further exploited to establish definition in phosphine binding. |
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Characterization and Applications of Coordination Compounds
7:00 PM-10:00 PM, Tuesday, August 21, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Inorganic Chemistry |