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Diversified AIE and mechanochromic luminescence based on carbazole derivatives decorated dicyanovinyl groups: Effects of Substitution Site and Molecular Packing

Abstract

Aggregation-induced emission (AIE) properties have been widely investigated not only because they thoroughly circumvent the notorious aggregation-caused quenching effect confronted in conventional fluorophores but also their promising applications in organic light-emitting diodes, fluorescent sensors and bioimaging. In this work, we reported a study of the molecular packing and luminescence properties of AIE active positional isomers (m-BPCDM and p-BPCDM) with carbazole and dicyanovinyl groups. The compound of m-BPCDM based on the meta-substitution showed more evident AIE processes than the compound of p-BPCDM based on the para-substitution, which can be attributed to the strong π-π stacking effect brought by the plane spatial structure of p-BPCDM. Moreover, the two positional isomers also exhibited distinct mechanochromic luminescence properties.

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Supplementary files

Article information


Submitted
11 Dec 2019
Accepted
09 Feb 2020
First published
11 Feb 2020

CrystEngComm, 2020, Accepted Manuscript
Article type
Paper

Diversified AIE and mechanochromic luminescence based on carbazole derivatives decorated dicyanovinyl groups: Effects of Substitution Site and Molecular Packing

K. Wang, H. Xiao, L. Qian, M. Han, X. Wu, Z. Guo and H. Zhan, CrystEngComm, 2020, Accepted Manuscript , DOI: 10.1039/C9CE01958H

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