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Molecular nanoribbon gels.
Marta Martínez-Abadía1, Rajeev K Dubey1, Mercedes Fernández1
1POLYMAT, University of the Basque Country UPV/EHU Avenida de Tolosa 72 E-20018 Donostia-San Sebastián Spain amateo@polymat.eu.
Chemical Science
|November 2, 2022
Summary
Twisted molecular nanoribbons efficiently form ordered π-gels. Their properties, including red fluorescence and pseudoconductivity, are tunable by nanoribbon length, showing potential for advanced materials.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Organic Electronics
Background:
- Molecular self-assembly is crucial for creating advanced functional materials.
- Ordered π-gels offer unique electronic and optical properties.
- Controlling nanostructure morphology is key to tuning material performance.
Purpose of the Study:
- To investigate the gelation capabilities of twisted molecular nanoribbons.
- To explore the relationship between nanoribbon length and π-gel properties.
- To assess the potential of these nanoribbons in electronic and optical applications.
Main Methods:
- Synthesis of twisted molecular nanoribbons with varying aromatic core lengths (up to 322 atoms).
- Characterization of self-assembled π-gel morphologies using microscopy techniques.
- Evaluation of sol-gel transition behaviors.
- Measurement of fluorescence and pseudoconductivity properties.
Main Results:
- Twisted molecular nanoribbons act as efficient gelators, forming ordered π-gels.
- Nanogel morphology and sol-gel transition temperatures are dependent on nanoribbon length.
- The resulting π-gels exhibit red fluorescence.
- Pseudoconductivity values comparable to state-of-the-art π-gels were observed.
Conclusions:
- Twisted molecular nanoribbons are versatile building blocks for self-assembled π-gels.
- Tunable properties through structural modification offer pathways for tailored material design.
- These nanoribbon-based π-gels show promise for applications in organic electronics and optoelectronics.
