β‐Isoindigo‐azaDIPYs: Fully Conjugated Hybrid Systems with Broad Absorption in the Visible Region
作者:Yuriy V. Zatsikha、Liliya I. Shamova、David E. Herbert、Victor N. Nemykin
DOI:10.1002/anie.202100888
日期:2021.5.25
of fullyconjugatedβ‐isoindigo‐azaDIPYhybrid chromophores comprised of β‐isoindigo and azadipyrromethene moieties is reported. The target compounds were characterized by spectroscopic, crystallographic, and theoretical methods and show unprecedented broadabsorption across the visibleregion of the electromagnetic spectrum. The X‐ray crystal structure of the octa(n‐butyl)‐β‐isoindigo‐azaDIPY derivative
A simple route toward triplet-forming thionated BODIPY-based photosensitizers
作者:Yao Xiao、Xiaoyu Huang、Jiao Feng、Zhigang Ni、Lizhi Gai、Xuqiong Xiao、Xinbing Sui、Hua Lu
DOI:10.1016/j.dyepig.2022.110167
日期:2022.4
Thiobases or sulfur-substituted nucleobases have been developed and recognized as prospective class of heavy-atom-free photosensitizer for photodynamic therapy due to their appealing phototherapeutic properties. In this work, we have prepared the thionated BODIPY analogues by replacing oxygen with sulfur atom at exocyclic carbonyl group, which display red-shifted absorption band, remarkable fluorescence
硫代碱基或硫取代的核碱基由于其吸引人的光治疗特性而被开发并被认为是用于光动力治疗的有前景的无重原子光敏剂。在这项工作中,我们通过在环外羰基上用硫原子取代氧来制备硫代 BODIPY 类似物,该类似物显示出红移吸收带、显着的荧光猝灭和高单线态氧。量子产率以及优异的光稳定性。硫取代稳定了LUMO能级并使HOMO不稳定,从而减小了能隙并将吸收转移到长波长。用 S 原子取代 O 对于增强从单重激发态到反应三重态的系统间交叉至关重要。DFT 计算表明,大的自旋轨道耦合 (SOC) 可能是三重态有效填充的原因。此外,硫代 BODIPY 有效地产生具有低细胞毒性的细胞内活性氧 (ROS)。这些研究表明,硫代 BODIPY 类似物可能适合用作光敏剂。
Process for the production of isoindolenine derivatives
申请人:BAYER AG
公开号:US02739151A1
公开(公告)日:1956-03-20
Baumann et al., Angewandte Chemie, 1956, vol. 68, p. 133,137