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Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
Published on: December 16, 2022
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Cyclization of Pyrene Oligomers: Cyclohexa-1,3-pyrenylene
Dominik Lorbach1, Ashok Keerthi1, Teresa Marina Figueira-Duarte1
1Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz (Germany).
Angewandte Chemie (International Ed. in English)
|November 8, 2015
Summary
Researchers synthesized cyclohexa(1,3-pyrenylene), a novel blue-light-emitting material. This macrocycle synthesis opens pathways for creating holey-nanographene structures.
Area of Science:
- Organic Chemistry
- Materials Science
- Supramolecular Chemistry
Background:
- Pyrene derivatives are crucial building blocks in organic electronics.
- Achieving controlled synthesis of complex polycyclic aromatic hydrocarbons (PAHs) remains a challenge.
- Non-aggregating, twisted structures are desirable for efficient light emission.
Purpose of the Study:
- To report the first synthesis of the macrocycle cyclohexa(1,3-pyrenylene).
- To investigate the material properties of the synthesized macrocycle.
- To explore the potential of this macrocycle in synthesizing nanographene structures.
Main Methods:
- A six-step synthetic route starting from pyrene.
- Cyclization reaction to form the macrocyclic structure.
- Cyclodehydrogenation of the macrocycle.
Main Results:
- Successful synthesis of cyclohexa(1,3-pyrenylene).
- The resulting material exhibits blue-light emission.
- The material is non-aggregating and highly twisted.
- Cyclodehydrogenation provides a route to holey-nanographene.
Conclusions:
- The developed synthetic route is effective for creating complex pyrenylene macrocycles.
- Cyclohexa(1,3-pyrenylene) is a promising material for blue-light-emitting applications.
- This work establishes a new method for accessing holey-nanographene.
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