Triple B←N Lewis Pair-Functionalized Triazatruxenes with Large Stokes Shifts
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A novel class of multiple B←N Lewis pair-functionalized polycyclic aromatic hydrocarbons with different BR2 groups (R = Cl or Et) directly attached at positions 1, 6, and 11 of triazatruxene was synthesized. The triazatruxene backbone of 4 displays a bowl shape, and its molecular skeleton shows a highly twisted propeller-like structure with C3 symmetry. The introduction of B←N Lewis pairs not only results in a large decrease in the HOMO–LUMO gap but also lowers the LUMO to −3.00 eV. Both compounds show excellent stability with large Stokes shifts of ≤8234 cm–1 and solvatochromic emission in solvents of different polarities.
创建时间：
2023-12-14
