Outside Back Cover: Precise Synthesis of Donor–Acceptor [17]Helicenes Exhibiting Circularly Polarized Emission

The precise synthesis of donor-acceptor [17]helicenes, the longest chiral carbohelicene to date, exhibits excellent circularly polarized luminescence with a high dissymmetry factor as reported by Zexin Jin and co-workers in the Communication (e25399). These properties are significant for the development of advanced helicene-based chiral materials with enhanced optoelectronic properties for applications in chiral photonics and molecular electronics.