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DOI: 10.1055/s-0043-1775501
Donor-Acceptor Azulenes with Intense Absorption and Emission in the Visible Region
This research is funded by the Committee of Science of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant No. BR21882309).
Abstract
New donor-acceptor compounds based on the azulene nucleus have been synthesized that demonstrate intense light absorption in the visible spectrum (380–600 nm) and emit light in the blue photoluminescence range. The appearance of photoluminescence is a unique feature of the resulting compounds and is absent from the original azulene. This ability was achieved by introducing a donor substituent at position 2 and acceptors at positions 1 and 3 of azulene. This led to a restructuring of its electronic structure, which created the prerequisites for the permitted π-π* transition.
Key words
azulene - azulenecarbonitrile - donor-acceptor azulene - carbazolyl-azulene - optoelectronics - photoluminescenceSupporting Information
- Supporting information for this article is available online at https://doi.org/10.1055/s-0043-1775501.
- Supporting Information
Publication History
Received: 17 July 2025
Accepted after revision: 26 August 2025
Article published online:
08 September 2025
© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by/4.0/)
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