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Updated: Jul 12, 2025

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
Published on: April 22, 2016
A comparative study on optical properties of pyrene-fused [4]helicenes and vinyl precursors
Guang Yang1, Kai-Yue Liu1, Jing-Yi Cao1
1School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
Abstract:
Polycyclic aromatic hydrocarbon-fused [n]helicene derivatives (PAH-fused [n]helicenes) have been widely investigated due to their excellent photoelectric and chiroptical properties. Herein, a series of pyrene-fused helicenes were synthesized by a photocyclization reaction and characterized by 1H/13C NMR spectroscopy and single crystal X-ray diffraction. All compounds and their vinyl precursors were studied as emitting materials. The experimental results reveal that these compounds possess reasonable emission efficiency (ΦFL = 97% for 3a) and tunable optical properties, and a wide emission band from bluish violet for 3c (401 nm) to green-yellow for 4c (530 nm) was observed. The detailed investigation indicated that an efficient, structure-controlled strategy was established to develop pyrene-based [n]helicene materials.
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