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Synfacts 2011(5): 0502-0502  
DOI: 10.1055/s-0030-1259806
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Efficient TPA Cross-Conjugated Polymers

Contributor(s): Timothy M. Swager, Shuang Liu
X. Li, X. Zhang, W. Li, Y. Wang, T. Liu, B. Zhang, W. Yang*
Qingdao University of Science & Technology, P. R. of China
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Publication History

Publication Date:
15 April 2011 (online)

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Significance

Anthracene-centered 2-D cross-conjugated polymers were synthesized by the Wittig-Horner cross-coupling reaction between a 2,6-diarylenevinylene/9,10-diaryleneethynylene motif (1) and 3,6- or 2,7-diformylcarbazoles. The peak two-photon absorption (TPA) cross-sections (δ) in toluene solutions of P1 and P2 are 2360 and 1520 Gm per repeating unit, respectively. The higher δ observed in P1 is attributed to the stronger electron-donating capability of 3,6-carbazoles compared to 2,7-carbazoles.