Issue 6, 2020

Guest effects on crystal structure and phosphorescence of a Cu6L3 prismatic cage

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.

Graphical abstract: Guest effects on crystal structure and phosphorescence of a Cu6L3 prismatic cage

Supplementary files

Article information

Article type
Research Article
Submitted
03 Dec 2019
Accepted
26 Jan 2020
First published
10 Feb 2020

Inorg. Chem. Front., 2020,7, 1437-1444

Guest effects on crystal structure and phosphorescence of a Cu6L3 prismatic cage

Z. Shi, W. Chen, S. Zhan, M. Li, M. Xie, Y. Y. Li, S. W. Ng, Y. Huang, Z. Zhang, G. Ning and D. Li, Inorg. Chem. Front., 2020, 7, 1437 DOI: 10.1039/C9QI01578G

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