Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 47, Pages 17999-18006Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja410117q
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Funding
- European Research Council
- Schlumberger-Faculty for the Future Fellowship program
- Japan Society for Promotion of Science (JSPS) postdoctoral fellowship for young scientists [2692]
- EPSRC [EP/J001163/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J001163/1] Funding Source: researchfish
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A new class of (Fe4L4)-L-II capsules, based upon a tritopic trialdehyde subcomponent, is reported. One such capsule was prepared diastereoselectively through the incorporation of a chiral amine residue. This amine was displaced by an achiral one, while maintaining the stereochemistry of the cage framework (99% ee); this cage retained its stereochemistry even after 4 days at 90 degrees C. Mechanistic studies indicate the memory displayed by this capsule to be the result of effective stereochemical communication between the metal centers mediated by the rigid 3-fold-symmetric faces, in combination with a stepwise substitution mechanism.
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