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Enantiopure Functional Molecular Motors Obtained by a Switchable Chiral-Resolution Process
Thomas van Leeuwen1, Jefri Gan1, Jos C M Kistemaker1
1Centre for Systems Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|April 14, 2016
Summary
Researchers developed a new method for creating enantiopure molecular motors from chiral overcrowded alkenes. This advancement enables easier access to these crucial components for responsive nano-machines and adaptive materials.
Area of Science:
- Nanotechnology and Materials Science
- Organic Chemistry
Background:
- Molecular rotors and motors are essential for creating advanced nano-machines and functional materials.
- The stereochemical purity of unidirectional rotors, particularly those based on chiral overcrowded alkenes, is critical for their performance.
Purpose of the Study:
- To present a novel and efficient method for synthesizing enantiopure, functionalizable overcrowded alkenes.
- To facilitate the development of responsive molecular systems utilizing chiral overcrowded alkenes.
Main Methods:
- A concise three-step synthesis was employed.
- A solvent-switchable chiral resolution technique using a common resolving agent was utilized.
- X-ray crystallography was used to determine the absolute configuration and binding mode.
Main Results:
- The method yields new and functionalizable overcrowded alkenes in enantiopure form.
- X-ray crystallography elucidated the motor-resolving agent interaction and absolute configuration.
- NMR and UV/Vis spectroscopy confirmed the dynamic behavior of the molecular motor.
Conclusions:
- This approach provides rapid access to substantial quantities of enantiopure molecular motors.
- The developed method significantly aids the advancement of responsive systems based on chiral overcrowded alkenes.
- Enables further development of chiral molecular machines and adaptive materials.
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