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Literature DB >> 28092132

A Columnar Liquid-Crystal Phase Formed by Hydrogen-Bonded Perylene Bisimide J-Aggregates.

Stefanie Herbst¹, Bartolome Soberats², Pawaret Leowanawat¹, Matthias Lehmann^1,2, Frank Würthner^1,2.

Abstract

A new perylene bisimide (PBI) dye self-assembles through hydrogen bonds and π-π interactions into J-aggregates that in turn self-organize into liquid-crystalline (LC) columnar hexagonal domains. The PBI cores are organized with the transition dipole moments parallel to the columnar axis, which is an unprecedented structural organization in π-conjugated columnar liquid crystals. Middle and wide-angle X-ray analyses reveal a helical structure consisting of three self-assembled hydrogen-bonded PBI strands that constitute a single column of the columnar hexagonal phase. This remarkable assembly mode for columnar liquid crystals may afford new anisotropic LC materials for applications in photonics.

Entities: Chemical Disease

Keywords: J-aggregates; anisotropic materials; liquid crystals; perylene bisimide; self-assembly

Year: 2017 PMID： 28092132 DOI： 10.1002/anie.201612047

Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN： 1433-7851 Impact factor: 15.336

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Cited

10 in total

1. Polymorphism in Squaraine Dye Aggregates by Self-Assembly Pathway Differentiation: Panchromatic Tubular Dye Nanorods versus J-Aggregate Nanosheets.

Authors: Chia-An Shen; David Bialas; Markus Hecht; Vladimir Stepanenko; Kazunori Sugiyasu; Frank Würthner
Journal: Angew Chem Int Ed Engl Date: 2021-05-02 Impact factor: 15.336

2. Guanine-oligothiophene conjugates: liquid-crystalline properties, photoconductivities and ion-responsive emission of their nanoscale assemblies.

Authors: Kian Ping Gan; Masafumi Yoshio; Yuki Sugihara; Takashi Kato
Journal: Chem Sci Date: 2017-10-24 Impact factor: 9.825

A Columnar Liquid-Crystal Phase Formed by Hydrogen-Bonded Perylene Bisimide J-Aggregates.

1. Polymorphism in Squaraine Dye Aggregates by Self-Assembly Pathway Differentiation: Panchromatic Tubular Dye Nanorods versus J-Aggregate Nanosheets.

2. Guanine-oligothiophene conjugates: liquid-crystalline properties, photoconductivities and ion-responsive emission of their nanoscale assemblies.

3. Direct observation of exciton-exciton interactions.

4. Self-assembly of multi-stranded perylene dye J-aggregates in columnar liquid-crystalline phases.

5. Hydrogen-bonded perylene bisimide J-aggregate aqua material.

6. Self-Sorting Supramolecular Polymerization: Helical and Lamellar Aggregates of Tetra-Bay-Acyloxy Perylene Bisimide.

7. Substituent-Controlled Tailoring of Chalcogen-Bonded Supramolecular Nanoribbons in the Solid State.

8. The role of chirality and plastic crystallinity in the optical and mechanical properties of chlorosomes.

9. Exciton Delocalization Counteracts the Energy Gap: A New Pathway toward NIR-Emissive Dyes.

10. Perylene-Based Chromophore as a Versatile Dye for Light Amplification.