biostudies-literatureYamada SFoundation for the Promotion of Ion EngineeringAsahi Glass FoundationJapan Society for the Promotion of Science3922-3932https://www.ebi.ac.uk/biostudies/studies/S-EPMC6649111biostudies-literatureUnknown4(2)Herein, we describe the synthesis of novel light-emitting liquid-crystalline (LC) compounds bearing pentafluorinated bistolane-based luminophores with a V- or a Y-shaped molecular geometry and the evaluation of their LC and photophysical characteristics. The V- or Y-shaped compounds exhibited a unique LC phase and showed photoluminescence (PL) behavior under various circumstances, such as in dilute solution or in the solid state. Notably, PL characteristics were observed even under high-temperature conditions with a crystal (Cr) to LC phase transition, although the PL efficiency (<i>Φ</i> _PL) was gradually reduced because of thermal molecular motion. Interestingly, <i>Φ</i> _PL was found to be completely recovered through the LC → Cr phase transition during the coolingACS omegaNovel V- and Y-Shaped Light-Emitting Liquid Crystals with Pentafluorinated Bistolane-Based Luminophores.PMC6649111JP18K05262Konno TYamada STanaka TIchikawa TfalseNovel V- and Y-Shaped Light-Emitting Liquid Crystals with Pentafluorinated Bistolane-Based Luminophores.Herein, we describe the synthesis of novel light-emitting liquid-crystalline (LC) compounds bearing pentafluorinated bistolane-based luminophores with a V- or a Y-shaped molecular geometry and the evaluation of their LC and photophysical characteristics. The V- or Y-shaped compounds exhibited a unique LC phase and showed photoluminescence (PL) behavior under various circumstances, such as in dilute solution or in the solid state. Notably, PL characteristics were observed even under high-temperature conditions with a crystal (Cr) to LC phase transition, although the PL efficiency (<i>Φ</i> _PL) was gradually reduced because of thermal molecular motion. Interestingly, <i>Φ</i> _PL was found to be completely recovered through the LC → Cr phase transition during the cooling2019-01-01T00:00:00Z2019 Feb2025-04-05T12:53:30.056Z2019-08-31T07:05:17ZS-EPMC66491113145960110.1021/acsomega.8b03543