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Updated: Sep 17, 2025
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Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells
Published on: October 2, 2016
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Chemical Fuel-Driven Networked Catalytic Machinery
Amit Ghosh1, Sohom Kundu1, Michael Schmittel1
1Center of Micro- and Nanochemistry and Engineering, Organische Chemie I, Adolf-Reichwein-Str. 2, Siegen, D-57068, Germany.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|July 2, 2025
Summary
This study introduces networked molecular machinery that combines chemical fuel-driven communication and catalysis. It demonstrates pulsed, time-programmed catalysis mimicking biological complexity.
Area of Science:
- Supramolecular Chemistry
- Chemical Engineering
- Catalysis
Background:
- Networked molecular machinery represents a frontier in creating complex systems with programmable functions.
- Integrating communication and catalysis within these machines is crucial for advanced applications.
- Previous systems lacked the dynamic, fuel-driven control demonstrated here.
Purpose of the Study:
- To develop a novel networked molecular machine integrating chemical-fuel-driven communication and catalysis.
- To demonstrate pulsed operation and time-programmed catalytic activity.
- To mimic the complexity and responsiveness of biological systems.
Main Methods:
- Utilized a self-sorted system comprising zinc hexacyclen, a silver(I)-loaded receptor, and a [2]rotaxane (NetState-I).
- Employed 2-cyano-2-phenylpropanoic acid as a chemical fuel to trigger molecular translocation events.
- Quantified catalytic activity of the transiently generated silver(I) [2]rotaxane using kinetic measurements (k298 = 176 kHz).
Main Results:
- Demonstrated a cascade process involving the translocation of Zn2+ and Ag(I) ions upon addition of chemical fuel.
- Showcased that catalytic activity of silver(I) is masked in the initial networked state and activated upon translocation.
- Successfully catalyzed the 6-endo cyclization of 2-alkynylbenzaldoxime using the fuel-driven system.
Conclusions:
- Presents a pivotal advancement in networked molecular machinery through integrated chemical communication and catalysis.
- Establishes a novel paradigm for cascaded signaling and time-programmed catalysis via pulsed operation.
- Highlights the potential for mimicking biological system complexity with synthetic molecular machines.
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