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The synthesis of a decaethynylated tetraazapentacene is described. It was obtained by a combination of condensation reactions giving the two pyrazine rings and subsequent consecutive Stille-type couplings. This is the first example of any higher (hetero)acene that is peralkynylated. The presence of the four nitrogen atoms removes the peri interaction of the substituted alkyne groups, giving this rock-stable and highly twisted heteroacene.
Pubmed ID: 31609484
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Institution which compiles and distributes small molecule crystallography data from the Cambridge Structural Database (CSD), a repository of experimentally determined organic and metal-organic crystal structures. CCDC also produces associated knowledge-based application software for structural chemists. Structures deposited with CCDC are made publically available for download at the point of publication or at consent from the depositor.
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