期刊
CHEM
卷 5, 期 3, 页码 634-648出版社
CELL PRESS
DOI: 10.1016/j.chempr.2018.12.006
关键词
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资金
- National Natural Science Foundation of China (NSFC) for the Science Center Program [21788102]
- National Natural Science Foundation of China (NSFC) for the Creative Research Groups [21421004]
- National Natural Science Foundation of China (NSFC) [21636002]
- National Key Research and Development Program [2016YFA0200300]
- Program of Introducing Talents of Discipline to Universities [B16017]
- Shanghai Municipal Science and Technology Major Project [2018SHZDZX03]
- NSFC [21625202]
- 973 Program [2015CB856600]
- Science and Technology Commission of Shanghai Municipality [16XD1401000]
- Program for Changjiang Scholars and Innovative Research Team in University
The construction of artificial chiral self-assembled systems has evolved to be one of the most attractive topics within supramolecular chemistry and materials science. However, stimuli-responsive chirality transcription with enantiospecific photoreversibility still remains challenging for chiral metallasupra-molecular structures because of the lack of appropriate building blocks. Herein, we present a chiral photoresponsive family of diarylethene-containing dipyridyl donors and their coordination-driven self-assembly behavior with the 120 degrees di-platinum(II) acceptor- The photochromic trimer units in the assembled metallacycles exhibit an unprecedented concerted photoconversion process without a step-by-step transformation. By taking advantage of the full-separated photoactive dipyridyl donor enantiomers based on the sterically hindered system, we have successfully achieved the phototriggered chirality transformation in supramolecular multi-dithienylethene metallacycles arising from axial helicity and central asymmetry, thereby establishing light-driven control in circular dichroism. Such unique photoreversible self-assembled metallacycles with photoinduced enantiospecificity enable the potential chemical platform for bistable chiroptical switching and non-destructive information encoding.
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