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A Doubly Dissipative System Driven by Chemical and Radiative Stimuli
Matteo Valentini1, Federico Frateloreto1, Matteo Conti1
1Department of Chemistry, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, 00185, Roma, Italy.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|June 16, 2023
Summary
Researchers developed a novel dissipative network using crown-ether receptors and alkali metal cations. This system
Area of Science:
- Supramolecular Chemistry
- Chemical Systems
- Materials Science
Background:
- Dissipative systems are crucial for creating dynamic molecular networks.
- Crown-ethers are known for their ability to bind alkali metal cations.
- Controlling molecular interactions with external stimuli is a key challenge.
Purpose of the Study:
- To develop a temporally programmable dissipative network.
- To control alkali metal cation distribution using orthogonal stimuli.
- To engineer systems that can evolve to out-of-equilibrium states.
Main Methods:
- Utilized a dissipative network of crown-ether receptors and alkali metal cations.
- Employed orthogonal stimuli: light irradiation and activated carboxylic acid.
- Modulated crown-ether binding affinity to control cation occupancy over time.
Main Results:
- Demonstrated programmable changes in receptor occupancies via stimuli.
- Induced system evolution to out-of-equilibrium states with altered cation distributions.
- Showcased reversible autonomous return to equilibrium upon stimulus removal.
Conclusions:
- Achieved temporal control over dissipative systems using multiple orthogonal stimuli.
- Developed a programmable system with sophisticated operating mechanisms.
- Opened avenues for advanced dissipative systems with enhanced time programmability.
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