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Molecules 2012, 17(4), 4452-4459; doi:10.3390/molecules17044452
Communication

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

1, 1 and 1,2,*
Received: 1 March 2012; in revised form: 30 March 2012 / Accepted: 6 April 2012 / Published: 13 April 2012
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Abstract: 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.
Keywords: twisted intramolecular charge transfer (TICT); excimer; intermolecular charge transfer; fluorenone; donor acceptor dye twisted intramolecular charge transfer (TICT); excimer; intermolecular charge transfer; fluorenone; donor acceptor dye
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Shigeta, M.; Morita, M.; Konishi, G.-I. Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent. Molecules 2012, 17, 4452-4459.

AMA Style

Shigeta M, Morita M, Konishi G-I. Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent. Molecules. 2012; 17(4):4452-4459.

Chicago/Turabian Style

Shigeta, Masayuki; Morita, Mifumi; Konishi, Gen-ichi. 2012. "Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent." Molecules 17, no. 4: 4452-4459.


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