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- Title
Near-Infrared Photochromic Diarylethenes Based on the Changes in the π-Conjugated System and the Electronic Properties of the Heteroaryl Moieties.
- Authors
Cheng, Hong‐Bo; Tan, Xin; Pang, Mei‐Li
- Abstract
It is very challenging to construct photochromic materials with absorption and reactivity in the near-infrared (NIR) spectral region. Herein, four unsymmetrical diarylethene derivatives 1o- 4o, which contain both indole and thiophene moieties, have been successfully synthesized, and their photochromic behaviors have been shifted to the NIR region. These newly developed NIR photochromic materials are highly sensitive and responsive to photostimuli both in solution and in poly(methyl methacrylate) films. It has been shown that 1o- 4o exhibit remarkable UV/Vis and fluorescence spectral changes, allowing them to behave as reversible optical molecular switches in the NIR region.
- Subjects
PHOTOCHROMIC materials; THIOPHENES; METHYL methacrylate; POLYMETHYLMETHACRYLATE; LUMINESCENCE
- Publication
European Journal of Organic Chemistry, 2013, Vol 2013, Issue 35, p7933
- ISSN
1434-193X
- Publication type
Article
- DOI
10.1002/ejoc.201301132