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Synfacts 2011(6): 0621-0621  
DOI: 10.1055/s-0030-1260406
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Octupolar HBC Chromophores

Contributor(s): Timothy M. Swager, Ggoch Ddeul Han
Z. Zeng, Z. Guan, Q.-H. Xu*, J. Wu*
National University of Singapore, Singapore
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Publikationsdatum:
19. Mai 2011 (online)

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Significance

The authors synthesized chromo­phores with high two-photon absorptivity, based on a hexa-peri-hexabenzocoronene (HBC) π-conjugated core. Herein, the synthetic difficulty of cyclodehydrogenation of the precursor with donors/acceptors (step e) was overcome, and the resulting chromophores, especially HBCNO2, exhibit large two-photon absorption (TPA) cross-sections.