Synthesis and Properties of [7]Helicene-like Compounds Fused with a Fluorene Unit OyamaHiromi AkiyamaMidori NakanoKoji NaitoMasanobu NobusawaKazuyuki NozakiKyoko 2016 [7]­Helicene-like compounds with a fluorene unit were successfully synthesized using a platinum-catalyzed double cyclization reaction. Crystal structures and photophysical properties of these compounds were also studied. In particular, they were found to exhibit a high fluorescence quantum yield and a relatively large <i>g</i> value (dissymmetric factor) of circularly polarized luminescence (CPL) for small molecules.