Issue 33, 2012

Aggregation induced emission in the rotatable molecules: the essential role of molecular interaction

Abstract

Aggregation-induced emission (AIE) compounds, dye2 and dye3, with a rotatable N–N single bond and aza-crown-ether, have been synthesized. The fluorescence intensities of both dyes are very weak in THF, while become extraordinarily strong in a mixture of H2O–THF (v/v 95%). They are increased by 88.9 and 70.7 times, respectively, indicating enhanced blue-green fluorescence emissions. The λem of these two compounds in different states has been well studied. Besides this, dye1 and dye2 were characterized by single crystal X-ray structural determination. The results show that molecular interactions are formed in the particles, which considerably restrict the intramolecular vibration and rotation.

Graphical abstract: Aggregation induced emission in the rotatable molecules: the essential role of molecular interaction

Supplementary files

Article information

Article type
Paper
Submitted
18 Apr 2012
Accepted
21 Jun 2012
First published
26 Jun 2012

J. Mater. Chem., 2012,22, 16927-16932

Aggregation induced emission in the rotatable molecules: the essential role of molecular interaction

Z. Yu, Y. Duan, L. Cheng, Z. Han, Z. Zheng, H. Zhou, J. Wu and Y. Tian, J. Mater. Chem., 2012, 22, 16927 DOI: 10.1039/C2JM32405A

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