Issue 8, 2024

Frustrated π-stacking

Abstract

The properties of functional materials based on organic π-conjugated systems are governed extensively by intermolecular interactions between π-molecules. To establish clear relationships between supramolecular structures and functional properties, it is essential to attain structurally well-defined π-stacks, particularly in solution, as this enables the collection of valuable spectroscopic data. However, precise control and fine-tuning of π-stacks pose significant challenges due to the weak and bidirectional nature of π–π stacking interactions. This article introduces the concept of “frustrated π-stacking,” strategically balancing attractive (π–π interaction) and repulsive (steric hindrance) forces in self-assembly to exert control over the sizes, sequences of π-stacks, and slip-stacked structures. These research efforts contribute to a deeper understanding of the correlation between π-stacks and their properties, thereby providing useful insights for the development of molecular materials with the desired performance.

Graphical abstract: Frustrated π-stacking

Article information

Article type
Feature Article
Submitted
24 8 2023
Accepted
19 12 2023
First published
19 12 2023

Chem. Commun., 2024,60, 935-942

Frustrated π-stacking

H. Zhang, Y. Wei and J. Lin, Chem. Commun., 2024, 60, 935 DOI: 10.1039/D3CC04123A

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