Liu Ningchao, Lv Xiaojuan, Xiao Bentian, Kuzuhara Daiki, Mei Peifeng, Aratani Naoki, Yamada Hiroko, Qiu Fengxian, Pan Jianming, Xue Songlin
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China.
Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551, Japan.
Dalton Trans. 2022 Jun 27;51(25):9606-9610. doi: 10.1039/d2dt01289h.
Mono-/diboron complexes with saddle-shaped molecular conformations were synthesized from porphyrins(2.1.2.1). The boron complexes have unique structure-dependent photophysical properties: (a) monoboron complexes 2a and 2b are not emissive in solution and the solid state, (b) diboron complex 3a shows red emission in toluene, and (c) diboron complex 3b shows aggregation-induced emission (AIE) in the deep-red region due to intermolecular secondary interactions (F-π). This is the first case of a boron porphyrinoid complex that shows AIE emission in the deep-red region in decades.
通过卟啉(2.1.2.1)合成了具有鞍形分子构象的单硼/双硼配合物。硼配合物具有独特的结构依赖性光物理性质:(a)单硼配合物2a和2b在溶液和固态中均不发光,(b)双硼配合物3a在甲苯中显示红色发射,(c)双硼配合物3b由于分子间二级相互作用(F-π)在深红色区域显示聚集诱导发光(AIE)。这是几十年来首例在深红色区域显示AIE发射的硼卟啉类配合物。