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Sci Adv. 2017 Aug 18;3(8):e1701162. doi: 10.1126/sciadv.1701162. eCollection 2017 Aug.

Tunable chiral metal organic frameworks toward visible light-driven asymmetric catalysis.

Author information

1
Chinese Academy of Science (CAS) Key Laboratory of Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology and University of Chinese Academy of Sciences, Beijing 100190, P. R. China.
2
Center for Nanochemistry, Peking University, Beijing 100871, P. R. China.

Abstract

A simple and effective strategy is developed to realize visible light-driven heterogeneous asymmetric catalysis. A chiral organic molecule, which only has very weak catalytic activity in asymmetric α-alkylation of aldehydes under visible light, is utilized as the ligand to coordinate with different types of metal ions, including Zn2+, Zr4+, and Ti4+, for construction of crystalline metal organic frameworks (MOFs). Impressively, when used as heterogeneous catalysts, all of the synthesized MOFs exhibit markedly enhanced activity. Furthermore, the asymmetric catalytic performance of these MOFs could be easily altered by selecting different metal ions, owing to the tunable electron transfer property between metal ions and chiral ligands. This work will provide a new approach for fabrication of heterogeneous catalysts and trigger more enthusiasm to conduct the asymmetric catalysis driven by visible light.

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