Issue 37, 2018

A salen–Al/carbazole dyad-based guest–host assembly: enhancement of luminescence efficiency via intramolecular energy transfer

Abstract

A novel class of salen–Al/carbazole dyads (D1 and D2) was synthesized and fully identified. The emission spectra of the dyads presented intriguing dual-emission patterns via an intramolecular energy transfer (IET) state in solution. Furthermore, the IET feature of the dyads was clearly observed in the rigid state. Interestingly, the emission efficiency of the dyads was enhanced by the significant IET process from the carbazole group to the salen–Al moiety. Particularly, D1 exhibited a nearly three-fold enhanced luminescence efficiency compared to the corresponding mononuclear aluminum complexes (A1). Such an emission process of these guest–host systems was further supported by theoretical calculation.

Graphical abstract: A salen–Al/carbazole dyad-based guest–host assembly: enhancement of luminescence efficiency via intramolecular energy transfer

Supplementary files

Article information

Article type
Communication
Submitted
23 fev 2018
Accepted
12 abr 2018
First published
12 abr 2018

Chem. Commun., 2018,54, 4712-4715

A salen–Al/carbazole dyad-based guest–host assembly: enhancement of luminescence efficiency via intramolecular energy transfer

S. W. Kwak, H. Jin, H. Shin, J. H. Lee, H. Hwang, J. Lee, M. Kim, Y. Chung, Y. Kim, K. M. Lee and M. H. Park, Chem. Commun., 2018, 54, 4712 DOI: 10.1039/C8CC01528G

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