超分子配位化学研究所
Institute of Supramolecular Coordination Chemistry
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Trigonal Prismatic Cu6L3 Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence

Zhi-Chun Shi,+ De-Xiang Zhang,+ Shun-Ze Zhan, Mian Li, Ji Zheng, Hu Yang, Xiao-Ping Zhou,* and Dan Li*




Abstract: A trigonal prismatic Cu6L3 coordination cage has been assembled from Cu(I) and semi-rigid bipyrazolyl ligand. The X-ray crystallography demonstrates that the cage has a cavity and can encapsulate the toluene as a guest, exhibiting thermochromism phenomenon. Empty cage can be obtained by expulsion of the guest through single crystal to single crystal transformation. After removed the guest, the empty cage shows a blue-shifted emission (580 nm), in comparison to its parent cage (615 nm). The empty cage could further serve as a host to encapsulate other aromatic molecules (e. g. mesitylene), which shows new emission band. The trigonal prismatic Cu6L3 coordination cage provides a platform to make advanced luminescent materials.


Keywords: coordination cage; host-guest; aromatic; photoluminescence


文章链接:Isr J Chem 2019 317.pdf