Synthesis and chiral optical activity of a quadruple heterohelicene based on 1,4-dihydropyrrolo[3,2-b]pyrrole–picene hybrid

Krzysztof Jan Kochanowski; Krzysztof Górski; Damian Kusy; Nicolas Vanthuyne; Alessandro Landi; Francesco Bertocchi; Arkadiusz Ciesielski; Michal Ksawery Cyranski; Guglielmo Monaco; Francesca Terenziani; Dorota Gryko

doi:10.1039/d5tc04545b

January 1, 2026Journal of Materials Chemistry COpen Access

Synthesis and chiral optical activity of a quadruple heterohelicene based on 1,4-dihydropyrrolo[3,2-b]pyrrole–picene hybrid

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Key Points

The research aims to synthesize and characterize a novel diaza-quadruple helicene and investigate its chiral optical properties.
Synthesis of the diaza-quadruple helicene using 1,4-dihydropyrrolo[3,2-b]pyrrole as a core
Structural elucidation through spectroscopic analysis including NMR and UV-Vis spectroscopy
Assessment of chiral optical activity via circular dichroism measurements
Successful synthesis of the diaza-quadruple helicene with confirmed structural characteristics
Demonstration of notable chiral optical activity, indicating potential applications in materials science
Evaluation of the fusion of [6]helicene and [5]helicene units, showing enhanced optical properties

Implication

Synthesis reveals chiral optical activity in a quadruple helicene with a DHPP core, suggesting potential uses in optical devices.

Abstract

The synthesis and structural elucidation of a diaza-quadruple helicene, comprising a double [6]helicene and two [5]helicene subunits fused around a 1,4-dihydropyrrolo[3,2-b]pyrrole (DHPP) core with appended picene units, is reported. The...

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Kochanowski et al. (2026) studied this question.

synapsesocial.com/papers/69a3d8e7ec16d51705d3028d https://doi.org/10.1039/d5tc04545b

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Synthesis and chiral optical activity of a quadruple heterohelicene based on 1,4-dihydropyrrolo[3,2-b]pyrrole–picene hybrid

Key Points

Implication

Abstract

Discussion

Cite This Study

Synthesis and chiral optical activity of a quadruple heterohelicene based on 1,4-dihydropyrrolo[3,2-b]pyrrole–picene hybrid

Key Points

Implication

Abstract

Discussion

Cite This Study

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