Feng Yi, Zhou Jiadong, Qiu Honglin, Schnitzlein Matthias, Hu Jingtao, Liu Linlin, Würthner Frank, Xie Zengqi
State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology (SCUT), 510640, Guangzhou, P. R. China.
Institut für Organische Chemie & Center for Nanosystems Chemistry, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
Chemistry. 2022 May 19;28(29):e202200770. doi: 10.1002/chem.202200770. Epub 2022 Apr 7.
A starlike heterocyclic molecule containing an electron-deficient nonaaza-core structure and three peripheral isoquinolines locked by three tetracoordinate borons, namely isoquinoline-nona-starazine (QNSA), is synthesized by using readily available reactants through a rather straightforward approach. This new heteroatom-rich QNSA possesses a quasi-planar π-backbone structure, and bears phenyl substituents on borons which protrude on both sides of the π-backbones endowing it with good solubility in common organic solvents. Contrasting to its starphene analogue, QNSA shows intense fluorescence with a quantum yield (PLQY) of up to 62 % in dilute solution.
通过一种相当直接的方法，使用容易获得的反应物合成了一种星状杂环分子，该分子包含一个缺电子的九氮杂环核心结构和由三个四配位硼锁定的三个外围异喹啉，即异喹啉-九氮杂环辛嗪（QNSA）。这种富含杂原子的新型QNSA具有准平面π骨架结构，硼上带有苯基取代基，这些取代基在π骨架的两侧突出，使其在常见有机溶剂中具有良好的溶解性。与它的星烯类似物相比，QNSA在稀溶液中表现出强烈的荧光，量子产率（PLQY）高达62%。
