据信二苯并噻吩S-氧化物(DBTO)的光脱氧在溶液中产生基态原子氧[O(3 P)]。与其他活性氧(ROS)相比,O(3 P)具有强效和选择性,是一种独特的氧化剂。DBTO的衍生物已被用作O(3 P)的前体,以氧化多种分子,包括质粒DNA,蛋白质,脂质,硫醇和其他小有机分子。不幸的是,DBTO的光脱氧需要紫外线照射,这对于生物系统而言不是理想的波长范围,并且具有约0.003的低量子产率。在这项工作中,苯并[ b ]萘[1,2- d ]硒烯Se-氧化物,苯并[b ]萘并[2,1- d ]硒吩硒氧化物,二萘并[2,3- b:2' ,3'- d ]硒吩硒氧化物,和perylo [1,12- B,C,d ]硒吩合成了Se-氧化物,并研究了它们利用可见光生成O(3 P)的能力。苯并[ b ]萘[1,2- d ]硒烯Se-氧化物在420 nm处辐照会产生O(3 P)。此外,苯并[ b ]萘并[1,2- d
Heteroatom-Annulated Perylenes: Practical Synthesis, Photophysical Properties, and Solid-State Packing Arrangement
摘要:
A practical strategy for the preparation of a series of heterocyclic annulated perylenes in good yields is presented. UV-vis absorption spectra indicate hypsochromic shift of the absorption maxima relative to the corresponding parent perylene. Single-crystal X-ray diffraction analysis reveals that the), all adopt planar conformation, but the solid-state packing arrangements are significantly altered by annulation of various heterocycles.