Issue 1, 2017

Intermolecular interactions boost aggregation induced emission in carbazole Schiff base derivatives

Abstract

Six D–π-A model compounds (compounds 1–6) were conveniently synthesized and characterized by 1H NMR, 13C NMR, MS and single crystal X-ray diffraction. One photon absorption and emission properties were studied by using a series of UV-visible and fluorescence spectra and theoretical calculations were applied to investigate the structure–property relationships, which showed that all six compounds possessed an obvious intramolecular charge transfer process which could be attributed to their optical properties. We simultaneously investigated their fluorescence emission performance in water/acetonitrile mixtures and found that they all have outstanding aggregation induced emission properties. Scanning electron microscopy testing illustrated that orderly aggregation was the main reason for their aggregation induced emission properties. Cytotoxicity tests indicated that all these compounds had good biocompatibility for living cells, and bio-imaging studies highlighted the potential application of the six compounds in one-photon fluorescence microscopy imaging domains.

Graphical abstract: Intermolecular interactions boost aggregation induced emission in carbazole Schiff base derivatives

Associated articles

Supplementary files

Article information

Article type
Paper
Submitted
06 Oct 2016
Accepted
21 Nov 2016
First published
21 Nov 2016

Org. Biomol. Chem., 2017,15, 256-264

Intermolecular interactions boost aggregation induced emission in carbazole Schiff base derivatives

X. Gan, G. Liu, M. Chu, W. Xi, Z. Ren, X. Zhang, Y. Tian and H. Zhou, Org. Biomol. Chem., 2017, 15, 256 DOI: 10.1039/C6OB02181F

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