Year: 2025
Type: article
Abstract: Two distorted nanographenes combining helicenes and a fluoranthene unit within their polycyclic scaffolds were synthesized. Their structural and electronic properties were elucidated by various spectroscopic methods, and the experimental data were corroborated computationally. The optical and electrochemical properties of the nanographenes were evaluated. The compounds exhibit an improved two-photon absorption cross-section compared to their seven-membered ring-containing counterparts reported previously by us. These results provide important insights into how the incorporation of a pentagonal ring affects two-photon absorption properties of nanographenes. Moreover, one of the nanographenes is chiral and was obtained enantiomerically pure after chiral separation, allowing the study of its chiroptical properties both in absorption (electronic circular dichroism) and emission (circularly polarized luminescence).
Source: Organic Letters
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Awards: G1175115578, G1629571267, G2262748287, G2670165905, G294895050, G300979063, G3093205598, G3447672546, G3472979172, G3480869486, G354984597, G3641847937, G410571670, G425668148, G451917667, G4793495473, G5080475149, G5178866988, G523076202, G5539308778, G5967599077, G6033112984, G6218905885, G6803517791, SFB 953: Synthetische Kohlenstoffallotrope, G7084143925, G7127239378, G7352041285, G7488879430, G7549035430, SFB 1249: NHeteropolyzyklen als Funktionsmaterialien, G8449161743, G8835300251, G8888022036
OpenAlex ID: W4413900910