Media type: E-Article Title: Protonation-induced red-coloured circularly polarized luminescence of [5]carbohelicene fused by benzimidazole Contributor: Sakai, Hayato; Kubota, Takako; Yuasa, Junpei; Araki, Yasuyuki; Sakanoue, Tomo; Takenobu, Taishi; Wada, Takehiko; Kawai, Tsuyoshi; Hasobe, Taku imprint: Royal Society of Chemistry (RSC), 2016 Published in: Organic & Biomolecular Chemistry Language: English DOI: 10.1039/c6ob00937a ISSN: 1477-0520; 1477-0539 Keywords: Organic Chemistry ; Physical and Theoretical Chemistry ; Biochemistry Origination: Footnote: Description: <p>We report the first observation of red-coloured circularly polarized luminescence (CPL) of a helicene derivative (benzimidazole-fused [5]carbohelicene) induced by protonation.</p>