Zhi-Chun Shi, Wei Chen, Shun-Ze Zhan, Mian Li, Mo Xie, Yan Yan Li, Seik Weng Ng, Yong-Liang Huang, Zhiyin Zhang, Guo-Hong Ning * and Dan Li *

Abstract:Coordination cages with a nanocavity can encapsulate various guests, which allows modulation of the physical and chemical properties of the host–guest inclusion complexes. In this work, we designed and prepared a phosphorescence Cu6L3 trigonal prismatic cage, which accommodates a series of aromatic guest molecules. Single crystal X-ray analysis revealed that the intermolecular Cu⋯Cu distance can be mediated by changing the volume of the guests. Moreover, the host–guest charge-transfer interactions can be also fine-tuned via tailoring the ionization potential of guests. Consequently, we have observed the guest-induced photoluminescence properties change including a gradual red shift of the maximum emission peak and a linear relationship between the quantum yield and ionization potential of guests.

文章链接：Inorg Chem Front 2020 1437.pdf