Single-Molecule Interfacial Electron Transfer Dynamics

Interfacial electron transfer dynamics is important for environmental and catalytic reactions. Extensive ensemble-averaged studies have indicated inhomogeneous and complex dynamics of interfacial ET reaction. To characterize the inhomogeniety and the complex mechanism, we have applied femtosecond ultrafast spectroscopy, single-molecule photon stamping and Raman spectroscopy, and correlated AFM imaging to study the interfacial ET dynamics of dye molecules adsorbed at the surface of TiO2 nanoparticles.

Chemistry with Methane: Concepts Rather than Recipes

Four seemingly simple transformations related to the chemistry of methane will be addressed from mechanistic and conceptual points of view, i.e.: 1) metal-mediated dehydrogenation to form metal-carbene complexes, 2) the hydrogen-atom abstraction step in the oxidative dimerization of methane, 3) the mechanisms of the CH4 -> CH3OH conversion, and 4) the initial bond scission as well as the rate-limiting step in the selective CH3OH -> CH2O oxidation.

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