ArticleChemical science2026
Diboron- and digermanium-doped dihydrodibenzohexacenes: Ge-B exchange to access boron-doped extended acenes.
Article in Chemical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Incorporation of main-group atoms into the backbone of polycyclic aromatic hydrocarbons offers an effective strategy to modulate their electronic structures. Boron and germanium doping is particularly attractive for enhancing optoelectronic and electrochemical properties. However, regioselective incorporation of these elements into extended π-conjugated systems remains limited due to synthetic challenges and stability issues. Herein, we report the synthesis of isomeric series of digermanium-(2 and 6) and diboron-(4 and 8) embedded dihydrodibenzohexacenes. The molecular structures of the four compounds were confirmed by single-crystal X-ray diffraction, revealing curved backbones for the digermanium-doped compounds 2 and 6, whereas the diboron analogues 4 and 8 display a planar backbone incorporating two weakly antiaromatic C
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