Synthesis and computational studies of diphenylamine donor-carbazole linker-based donor–acceptor compounds

The design, synthesis, and electronic spectra of a novel series of organic diphenylamine donor-carbazole linker-based donor–acceptor compounds are reported. The low-lying electronic transitions in these compounds are investigated using a combination of conventional steady-state absorption spectroscopy and tools of computational photochemistry. The electronic transitions were found to depend both on the nature of the acceptor moiety and the presence/absence of a carbazole linker, not affected by the presence of the trifluoromethlyphenyl group in all the reported DA compounds.