Anthracene has been widely explored because of its intrinsic photophysical and photochemical properties. Here, two novel anthracene-based macrocycles (1 and 2) were designed and synthesized with para- and meta-phenylene spacers. X-ray crystallographic analysis demonstrates that compound 1 with para-phenylene spacers adopts a nearly planar structure, while compound 2 with meta-phenylene spacers displays a V-shaped geometry. The photophysical properties of the resultant macrocycles, which are structural isomers, are well studied using photoluminescence spectra and time-resolved absorption spectra, which are further corroborated by density functional theory calculations. The optical properties of these two novel macrocycles can be finely tuned via their geometries.

蒽因其固有的光物理和光化学特性而被广泛研究。在此，设计并合成了两个基于蒽的新型大环化合物（1和2），并带有对-和间-亚苯基间隔基。X射线晶体学分析表明，具有对亚苯基间隔基的化合物1几乎呈平面结构，而具有间亚苯基的化合物2-亚苯基间隔基显示出V形的几何形状。使用光致发光光谱和时间分辨吸收光谱，对形成的大环（结构异构体）的光物理性质进行了深入研究，密度泛函理论计算进一步证实了这些结果。这两个新的大环的光学性质可以通过它们的几何形状进行微调。