We describe herein a robust π-conjugated molecules with solid-state emission in the near-infrared (NIR) region (ΦF = 0.03–0.06). Initially, the diastereomers of bisboron azomethine complexes having phenyl groups in the same and opposite directions to the π-plane were synthesized. These diastereomers showed emission properties with larger red-shifts (>200 nm) and 10 times larger emission efficiencies
我们在此描述了具有固态发射一个健壮的π共轭分子在近红外(NIR)区域(Φ ˚F = 0.03-0.06)。最初,合成在与π平面相同和相反的方向上具有苯基的双
硼偶氮甲
亚胺配合物的非对映异构体。这些非对映异构体的发射特性具有较大的红移(> 200 nm),并且发射效率是单核配合物的发射效率的10倍。理论计算数据表明,双
硼配合物的优异光学性能应归因于π共轭体系的有效扩展。此外,双
硼化合物及其共轭聚合物即使在固态下也表现出强烈的近红外发射。