Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent

We designed and synthesized a donor-acceptor-donor dye consisting of a 2,7-disubstituted fluorenone with diethylaminophenyl moieties present as strong electron donating groups. Switching between twisted intramolecular charge transfer (TICT) emission and excimer emission was achieved, with no ground...

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Detalles Bibliográficos
Autores principales: Shigeta, Masayuki, Morita, Mifumi, Konishi, Gen-ichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2012
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6268939/
https://www.ncbi.nlm.nih.gov/pubmed/22504830
http://dx.doi.org/10.3390/molecules17044452
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author Shigeta, Masayuki
Morita, Mifumi
Konishi, Gen-ichi
author_facet Shigeta, Masayuki
Morita, Mifumi
Konishi, Gen-ichi
author_sort Shigeta, Masayuki
collection PubMed
description We designed and synthesized a donor-acceptor-donor dye consisting of a 2,7-disubstituted fluorenone with diethylaminophenyl moieties present as strong electron donating groups. Switching between twisted intramolecular charge transfer (TICT) emission and excimer emission was achieved, with no ground state changes, by simply changing the solvent used. In a nonpolar solvent, excimer emission was observed; with increasing polarity, the emission gradually disappeared, and the TICT emission appeared.
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spelling pubmed-62689392018-12-11 Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent Shigeta, Masayuki Morita, Mifumi Konishi, Gen-ichi Molecules Communication We designed and synthesized a donor-acceptor-donor dye consisting of a 2,7-disubstituted fluorenone with diethylaminophenyl moieties present as strong electron donating groups. Switching between twisted intramolecular charge transfer (TICT) emission and excimer emission was achieved, with no ground state changes, by simply changing the solvent used. In a nonpolar solvent, excimer emission was observed; with increasing polarity, the emission gradually disappeared, and the TICT emission appeared. MDPI 2012-04-13 /pmc/articles/PMC6268939/ /pubmed/22504830 http://dx.doi.org/10.3390/molecules17044452 Text en © 2012 by the authors; licensee MDPI, Basel, Switzerland. http://creativecommons.org/licenses/by/3.0/ This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Communication
Shigeta, Masayuki
Morita, Mifumi
Konishi, Gen-ichi
Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent
title Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent
title_full Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent
title_fullStr Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent
title_full_unstemmed Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent
title_short Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent
title_sort selective formation of twisted intramolecular charge transfer and excimer emissions on 2,7-bis(4-diethylaminophenyl)-fluorenone by choice of solvent
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6268939/
https://www.ncbi.nlm.nih.gov/pubmed/22504830
http://dx.doi.org/10.3390/molecules17044452
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AT konishigenichi selectiveformationoftwistedintramolecularchargetransferandexcimeremissionson27bis4diethylaminophenylfluorenonebychoiceofsolvent

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