Beilstein Arch. 2025, 202511. https://doi.org/10.3762/bxiv.2025.11.v1
Published 19 Feb 2025
Since the discovery of donor-acceptor (D-A) type molecules in the field of material science, they have found great applicability in the field of photocatalysis. Most of these compounds are based on complex D-A-D structures or multi-D-A systems, such as the 4CzIPN. Whereas these systems have been widely studied and applied as photocatalysts, simpler D-A structures remain less explored. Nevertheless, the simplicity of D-A structures makes them the ideal structures to further understand the structure-property relationship of donor-acceptor (D-A) molecules for optimizing their photocatalytic performance by simpler modification of the different D-A subunits. In particular, D-A structures featuring sulfur-based acceptors and nitrogen donors have gained increasing attention for their use as photoredox catalysts. This study introduces a new family of D-A molecules by exploring various sulfur-based acceptors and nitrogen donors, including a novel tribenzo[b,d,f]azepine (TBA) unit and 5H-dibenz[b,f]azepine (IMD). Our findings demonstrate that these simple D-A structures exhibit promising photocatalytic properties, comparable to those of more complex D-A-D systems.
Keywords: donor-acceptor system; photoredox catalysis; organic photocatalyst; photocatalyst design
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Medrano-Uribe, K.; Humbrías-Martín, J.; Dell'Amico, L. Beilstein Arch. 2025, 202511. doi:10.3762/bxiv.2025.11.v1
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