H‑Aggregated π‑Systems Based on Disulfide-Linked Dimers of Dipyrrolyldiketone Boron Complexes

Dipyrrolyldiketone boron complexes linked by a disulfide bond were synthesized, forming H-aggregated dimers assisted by intramolecular π–π and hydrogen-bonding interactions. The conformations of the dimers, with small C–S–S–C dihedral angles, were examined by UV–vis absorption and 1H NMR spectra as well as single-crystal X-ray analysis and theoretical studies.

本研究合成了经二硫键连接的二吡咯二酮硼配合物，该类配合物在分子内π-π相互作用与氢键相互作用的辅助下形成H聚集二聚体。通过紫外-可见吸收光谱、核磁共振氢谱、单晶X射线衍射分析以及理论计算研究，对具有较小C-S-S-C二面角的二聚体构象进行了考察。