Azaborine chemistry and applications

BN-arenes are isosteres of aromatic hydrocarbons in which a C=C bond is formally replaced by an isoelectronic B-N bond. Although these compounds preserve planarity and aromaticity, the intrinsic polarization introduced by the B–N linkage profoundly alters their electronic structure. As a result, BN-arenes often display enhanced and tunable photophysical properties relative to their all-carbon counterparts, making them highly attractive scaffolds for optoelectronic applications. In this context, we have developed a range of synthetic methodologies enabling access to previously unexplored BN-fused polycyclic architectures, along with strategies for their selective functionalization. We systematically investigate how structural modifications within these BN-polycycles influence their optical and electronic properties, establishing structure–property relationships that guide the design of next-generation functional materials.

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