College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding, 071002, P. R. China.
Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
Chemistry. 2023 Apr 21;29(23):e202203782. doi: 10.1002/chem.202203782. Epub 2023 Mar 16.
A helicene-containing arene and its linear analogue have been successfully synthesized and characterized, where the single-crystal X-ray diffraction analysis indicates that the former can arrange in an offset packing style with a π-π overlap. The introduction of pentagon-rings into the parent skeletons in the resulting compounds can boost the stability, and such helicene-containing molecule possesses higher solubility in organic solvent than the linear analogue. The structural difference has significantly influenced the optical limiting performance. The former in solution and in doped gel glass presents higher optical limiting response towards 532 nm laser than the latter. This study can enrich the functionalization of helicene, which can possess a positive effect in terms of nonlinear optical property.
一种含薁的芳烃及其线性类似物已被成功合成和表征，单晶 X 射线衍射分析表明，前者可以采用π-π重叠的交错堆积方式排列。在所得化合物中，五元环的引入可以提高母体骨架的稳定性，并且这种含薁的分子在有机溶剂中的溶解度比线性类似物更高。结构上的差异显著影响了光限幅性能。前者在溶液中和掺杂凝胶玻璃中对 532nm 激光的光限幅响应均高于后者。该研究丰富了薁的功能化，对非线性光学性能具有积极意义。
