Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 24, Issue 32, Pages 8087-8091Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201801079
Keywords
acenes; heptacenes; pi extension; stabilization through benzannulation; X-ray diffraction
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Funding
- Fonds der Chemischen Industrie
- DFG [SFB 1249]
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The synthesis of bisalkynylated derivatives of tetrabenzo[a,c,p,r]heptacene and tetrabenzo[a,c,l,n]pentacene via two-/fourfold Stille reactions involving a 9-stannafluorene and suitable tetrabromoacenes is reported. These triphenylene-winged heptacenes are surprisingly stable and maintain a significant portion of the electronic properties of heptacenes.
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