Preparation of circularly polarized photoluminescent material using nonclassical method

已经报道了许多由单个有机分子组成的固态有机荧光团。然而，以前报道的大多数有机荧光团都没有手性，因此它们不显示出固态圆偏振发光(CPL)。本研究以非手性荧光羧酸分子和手性胺分子为原料，成功制备了手性双组分超分子有机荧光团。有趣的是，发现可以通过改变非手性酸组分分子的类型(即通过改变荧光单元的堆积结构)来控制酸/胺超分子有机荧光团的固态手性光学性质，而不是改变手性胺组分分子的手性。提供这些功能的超分子有机荧光团有望在开发新型固态手性超分子荧光团方面发挥作用。

Many solid-state organic fluorophores composed of a single organic molecule have been reported. However, most of the previously reported organic fluorophores do not have chirality, and therefore, they do not show solid-state circularly polarized luminescence(CPL). In this study, chiral two-component supramolecular organic fluorophore was successfully prepared by using achiral fluorescent carboxylic acid molecule and chiral amine molecule. Intersetingly, it was found that the solid-state chiral optical properties of acid/amine supramolecular organic fluorophore can be controlled by changing the type of the achiral acid component molecule(that is, by changing the packing structure of the fluorescent unit) instead of changing the chirality of the chiral amine component molecule. Supramolecular organic fluorophores offering these functionalities are expected to be useful in the development of novel solid-state chiral supramolecular fluorophores.