Thiophene-fused aromatic belts

Hiroki Shudo, Philipp Wiesener, Elena Kolodzeiski, Kiichi Mizukami, Daiki Imoto, Harry Mönig (), Saeed Amirjalayer (), Hirotoshi Sakamoto, Henning Klaasen, Bart Jan Ravoo, Nobuo Kimizuka (), Akiko Yagi () and Kenichiro Itami ()
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Hiroki Shudo: Nagoya University; Chikusa
Philipp Wiesener: University of Münster
Elena Kolodzeiski: Technical University of Munich
Kiichi Mizukami: Kyushu University
Daiki Imoto: Nagoya University; Chikusa
Harry Mönig: University of Münster
Saeed Amirjalayer: Heidelberg University
Hirotoshi Sakamoto: Kyoto University
Henning Klaasen: University of Münster
Bart Jan Ravoo: University of Münster
Nobuo Kimizuka: Kyushu University
Akiko Yagi: Nagoya University; Chikusa
Kenichiro Itami: Nagoya University; Chikusa

Nature Communications, 2025, vol. 16, issue 1, 1-9

Abstract: Abstract Aromatic belts, ultrashort carbon nanotubes, and related structures, are emerging molecular entities in the fields of organic electronics and supramolecular chemistry owing to their structural rigidity, fully fused π-conjugation, and well-defined cavity. Synthesis of aromatic belts with embedded thiophene structures, which manifest significant optoelectronic and conductive properties, has not yet been achieved. Herein, we report the synthesis of thiophene-fused aromatic belts (thiophene belts) via one-step sulfur cross-linking reaction of partially fluorinated cycloparaphenylenes. Their structural features, including unidirectional columnar stacking with high dipole moment in crystals, two-dimensional layer assembly on metal surfaces, and photophysical properties, such as long-lifetime phosphorescence, are uncovered. These distinctive features of the thiophene belts should inspire a range of applications such as optoelectronic devices and polar materials.

Date: 2025
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DOI: 10.1038/s41467-025-55896-w

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