Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 21, Issue 28, Pages 10236-10240Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201500615
Keywords
cadmium; chirality; enantioselectivity; helical structures; metal-organic frameworks
Categories
Funding
- 973 Program [2012CB821705]
- NSFC [21425102, 21221001, 21173224]
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Homochiral metal-organic frameworks (HMOFs) are efficient materials for enantioselective adsorption. However, the combination of size selectivity and enantioselectivity is still a major challenge in the field of HMOFs. Herein, two enantiomorphic HMOFs built from predesigned proline-derived ligands are presented. Both of them show multiple homochiral features: they contain four different helical chains and three types of helical channels. Due to the size effect of the helical channels, each HMOF can enantioselectively adsorb methyl lactate with high ee. The results reveal a new approach toward size-dependent enantioselective separation of racemic compounds by using HMOFs built from inexpensive proline derivatives.
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