Two-photon absorption properties of heterafluorenes and spirobiheterafluorenes bearing aminostyryl arms

Tomohiro Agou; Md. Delwar Hossain; Takayuki Kawashima; Kenji Kamada; Koji Ohta

doi:10.1039/B912745C

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Chemical Communications

Issue 44, 2009

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Two-photon absorption properties of heterafluorenes and spirobiheterafluorenes bearing aminostyryl arms

Tomohiro Agou , Md. Delwar Hossain , Takayuki Kawashima , Kenji Kamada and Koji Ohta

Chem. Commun., 2009, 6762-6764

DOI: 10.1039/B912745C
Received 29 Jun 2009, Accepted 09 Sep 2009
First published on the web 28 Sep 2009

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Abstract
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A phosphoniafluorene and a spirobiphosphoniafluorene bearing 4-(diethylamino)styryl groups were synthesized. These compounds exhibited bathochromically shifted absorption and emission, compared with their silicon analogues, because of the strong acceptor property of the phosphonium core. They also showed enhanced two-photon absorptions at around 930 nm.

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Tomohiro Agou
Md. Delwar Hossain
Takayuki Kawashima
Kenji Kamada
Koji Ohta

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Chemical Communications

Two-photon absorption properties of heterafluorenes and spirobiheterafluorenes bearing aminostyryl arms

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