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Issue 5, 2011
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Synthesis of star-shaped monodisperse oligo(9,9-di-n-octylfluorene-2,7-vinylene)s functionalized truxenes with two-photon absorption properties

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Abstract

A series of new star-shaped monodisperse conjugated truxene derivatives bearing oligo(fluorene-vinylene) arms (Tr-OFVn, n = 1, 2, 3, 4) have been synthesized. It is found that the conjugation of the oligomers can be extended with prolonging the arms. Notably, the branched oligomers Tr-OFVn without strong donor and acceptor units exhibit two-photon absorption properties, and the two-photon absorption cross sections (δmax) increase with increasing the number of fluorene-vinylene units in the arms. The maximum value of δmax reaches 8073 GM for compound Tr-OFV4, which made it one of the most competitive compounds with enhanced TPA cross section. It provides a new platform for exploiting strong TPA compounds, in which the extended π-conjugated systems are involved in the absence of strong donor and acceptor units.

Graphical abstract: Synthesis of star-shaped monodisperse oligo(9,9-di-n-octylfluorene-2,7-vinylene)s functionalized truxenes with two-photon absorption properties

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Publication details

The article was received on 30 Sep 2010, accepted on 23 Nov 2010 and first published on 24 Nov 2010


Article type: Paper
DOI: 10.1039/C0OB00803F
Citation: Org. Biomol. Chem., 2011,9, 1600-1607
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    Synthesis of star-shaped monodisperse oligo(9,9-di-n-octylfluorene-2,7-vinylene)s functionalized truxenes with two-photon absorption properties

    H. Zhou, X. Zhao, T. Huang, R. Lu, H. Zhang, X. Qi, P. Xue, X. Liu and X. Zhang, Org. Biomol. Chem., 2011, 9, 1600
    DOI: 10.1039/C0OB00803F

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