Photochemical synthesis and photophysical features of ethynylphenanthrenes studied by emission and transient absorption measurements.

Abstract

Phenanthrenes substituted with trimethylsilylethynyl and phenylethynyl groups were photochemically prepared, and their photophysical properties were systematically investigated based on measurements of fluorescence quantum yields, lifetimes, and transient absorption. Introducing ethynyl groups into the phenanthrene skeleton caused an increase in the… (More)

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