Two-photon absorption properties of 2,6-bis(styryl)anthracene derivatives: Effects of donor-acceptor substituents and the π center

Wen Jun Yang, Dae Young Kim, Mi Yun Jeong, Hwan Myung Kim, Yun Kyoung Lee, Xingzhong Fang, Seung-Joon Jeon, Bong-Rae Cho

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Abstract

A series of 2,6- and 2,7-bis-(styryl)anthracene derivatives with the donors at the styryl group and acceptors at the 9,10-positions have been synthesized, and their two-photon cross sections (φδmax) were determined. These compounds exhibit a peak two-photon absorptivity (δmax) in the range of 700-2500 GM at 780-1030 nm. Values of λmax and Stokes shifts increase as the acceptor is changed to a stronger one. There is also a parallel increase in λmax (2) and δmax with the same variation of the chromophore structure. Both λmax (2) and φδmax have been optimized by introducing donor-substituted styryl groups at the 2,6-positions and p-cyanophenyl groups at the 9,10-positions, respectively. The effect of a π center on the two-photon absorption properties has been assessed by comparing the existing data for a variety of D-π-D derivatives.

Original languageEnglish
Pages (from-to)4191-4198
Number of pages8
JournalChemistry - A European Journal
Volume11
Issue number14
DOIs
Publication statusPublished - 2005 Jul 4

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Keywords

  • Anthracene
  • Donor-acceptor systems
  • Excited states
  • Fluorescence
  • Two-photon absorption

ASJC Scopus subject areas

  • Chemistry(all)

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