4.8 Article

Large hydroazaacene diimides: synthesis, tautomerism, halochromism, and redox-switchable NIR optics

Journal

CHEMICAL SCIENCE
Volume 3, Issue 11, Pages 3175-3182

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2sc21142d

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Funding

  1. National Natural Science Foundation of China [21174004, 51073002]

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A series of dihydro- and tetrahydro-tetraazaacene diimides containing 6 or 7 laterally fused six-membered rings were synthesized. Halochromic and redox-switchable vis-NIR optical characteristics were exhibited. Quinonoid tautomers of dihydrotetraazaacene derivatives were obtained and characterized, which exhibited adequate stability and existed in equilibrium with the more commonly observed benzenoid tautomer.

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