This dataset contains time-resolved transient absorption spectroscopy measurements of 4,7-bis(thieno[3,4-b][1,4]dioxin-5-yl)benzo[c][1,2,5]thiadiazole (EBE), a donor–acceptor–donor-type conjugated organic molecule. The data were acquired to capture the ultrafast excited-state dynamics of EBE in solution following photoexcitation at 480 nm. The dataset includes differential absorption spectra recorded over femtosecond to 172 nanosecond timescales, providing insight into the lifetimes and spectral signatures of photoexcited states. Processed data files are provided in standardized formats suitable for further kinetic analysis and spectral deconvolution (2D dataset). Also the raw data is readable using Glotaran. The dataset supports studies of charge transfer processes, excited-state relaxation, and structure–property relationships in π-conjugated systems.

Glotaran, 1.5.1, KimoPack