70 research outputs found
Analysis of the Circular Dichroism Behavior of Some Disubstituted Benzenes in Cholesteric Mesophases
Enantioselective hydrogenation in cholesteryl tridecanoate as a chiral liquid-crystalline matrix
The Resistivity of a Liquid Crystalline Organic Conductor Measured Within the Mesophase from 100 to 1000 MHz
Photosensitized Reduction of Sulfonium Salts: Evidence for Nondissociative Electron Transfer
Excited-state dynamics of a D-Ď€-A type sulfonium-based alkoxystilbene photoacid generator
The excited-state relaxation dynamics of a D-Ď€-A sulfonium-based alkoxystilbene photoacid generator has been investigated in acetonitrile solution by using femtosecond transient absorption and nanosecond laser flash photolysis experiments. For the first time, the successive reaction steps involved in the photoinduced proton generation of a sulfonium acid generator have been kinetically and spectrally resolved from the early stages (femtosecond time scale) to the final chemical processes (microsecond domain). An overall four-step reaction scheme is established, and two main deactivation pathways limiting the proton generation efficiency are identified and quantified
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