Issue 14, 2016

Effect of solvent, pH and metal ions on the self-assembly process and optical properties of an A–π–D–π–A type triphenylamine carboxylic acid derivative

Abstract

A ‘Λ’ structural A–π–D–π–A type triphenylamine derivative (2E,2′E)-3,3′-(4,4′-(phenylazanediyl)bis(4,1-phenylene))diacrylic acid (abbreviated as L) with intramolecular charge transfer (ICT) character has been designed, synthesized and characterized. The morphology and linear optical properties of L nanostructures can be tuned by changing the solvent and/or the acidity of the solution. The possible growth mechanism is discussed through the single crystal structure and the corresponding molecular stacking style of L molecules. Further, the strong coordination effect between the carboxylic acid group of L and the metal ions is discussed, which also brings about changeable morphology, linear optical properties and enhanced nonlinear optical properties, two photon absorbance (TPA) included, which makes them suitable for applications in two-photon biological imaging, such as in HepG2 cells.

Graphical abstract: Effect of solvent, pH and metal ions on the self-assembly process and optical properties of an A–π–D–π–A type triphenylamine carboxylic acid derivative

Supplementary files

Article information

Article type
Paper
Submitted
15 ⴽⵜⵓ 2015
Accepted
30 ⵏⵓⵡ 2015
First published
08 ⴷⵓⵊ 2015

J. Mater. Chem. C, 2016,4, 2990-3001

Author version available

Effect of solvent, pH and metal ions on the self-assembly process and optical properties of an A–π–D–π–A type triphenylamine carboxylic acid derivative

L. Kong, Y. Liu, H. Wang, X. Tian, Q. Chen, Y. Tian, S. Li, Z. Xue and J. Yang, J. Mater. Chem. C, 2016, 4, 2990 DOI: 10.1039/C5TC03351A

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