Relationship between spatially heterogeneous reaction dynamics and photochemical kinetics in single crystals of anthracene derivatives.

ABSTRACT: Understanding physicochemical property changes based on reaction kinetics is required to design materials exhibiting desired functions at arbitrary timings. In this work, we investigated the photodimerization of anthracene derivatives in single crystals. Single crystals of 9-cyanoanthracene (9CA) and 9-anthraldehyde (9AA) exhibited reaction front propagation on the optical length scale, while 9-methylanthracene and 9-acetylanthracene crystals underwent spatially homogeneous conversion. Moreover, the sigmoidal behavior in the absorbance change associated with the reaction was much pronounced in the case of 9CA and 9AA and correlated with the observation of heterogeneous reaction progress. A kinetic analysis based on the Finke-Watzky model showed that the effective quantum yield of the photo

SUBMITTER: Kataoka S 

PROVIDER: S-EPMC11339781 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature