CHED 1228 |
| The photophysical properties of a variety of molybdenum halide clusters [Mo6X8L6] (X=Cl, Br; L=Br-, Cl-, I-, SCN-, OPPh3, C6H5NO, CF3CO2-, CF3SO3-) have been investigated. Excitation of the clusters at 350 nm produces broad phosphorescent emission with energy maxima of 12,700 – 13,300 cm-1, emission quantum yields of 5 – 33%, and emission lifetimes of 75 – 300 µs. The photophysical properties appear to be relatively insensitive to the identity of the inner halide ligands (X). The Energy Gap Law has been used to analyze the luminescence maxima and quantum yields. All of the prepared clusters follow the predicted trend with the notable exception of the trifluoromethanesulfonate-substituted cluster.
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Undergraduate Research Poster Session: Inorganic Chemistry
2:00 PM-4:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |
