Kasahara Yotaro, Hisaki Ichiro, Akutagawa Tomoyuki, Takeda Takashi
Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan.
Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.
Chem Commun (Camb). 2021 Jun 1;57(44):5374-5377. doi: 10.1039/d1cc01356d.
We prepared octylbenzoate-substituted [12]DBA (C8[12]DBA) as an organic molecular glass material. Even with a central large, planar π unit of [12]DBA, which is generally advantageous for the formation of a crystalline/liquid crystalline state, this compound formed a thermally stable glass state due to its small intermolecular π contact between [12]DBA units and twisted geometries around the terminal benzoate units. C8[12]DBA showed a unique dielectric anomaly and isolated fluorescence properties in the glass state.
我们制备了辛基苯甲酸酯取代的[12]二苯并[a,l]芘（C8[12]DBA）作为一种有机分子玻璃材料。即使[12]DBA具有一个中心大的平面π单元，这通常有利于形成晶体/液晶态，但由于[12]DBA单元之间分子间π接触小以及末端苯甲酸酯单元周围的扭曲几何结构，该化合物形成了热稳定的玻璃态。C8[12]DBA在玻璃态下表现出独特的介电异常和孤立的荧光特性。
