Panchromatic Photosensitizers Based on Push-Pull, Unsymmetrically Substituted Porphyrazines
作者:Javier Fernández-Ariza、Maxence Urbani、M. Salomé Rodríguez-Morgade、Tomás Torres
DOI:10.1002/chem.201705242
日期:2018.2.21
The units A have been endowed with thioether, amine, ether and alkyl functions, either directly attached to the β‐position of the pyrrolic units, or connected to the porphyrazine core through p‐substituted phenyl groups. Attaching the electron‐donor functions to the porphyrazine periphery produces strong perturbations in the electronic and redox properties of the dyes. Their HOMO and LUMO energies
制备了一系列5种A 3 B型推挽式卟啉,其中B单元为异吲哚4羧酸。A单元具有硫醚,胺,醚和烷基官能团,可以直接连接到吡咯单元的β位置,也可以通过对位取代的苯基连接到卟啉核心。将电子给体功能连接到卟啉嗪的周围会在染料的电子和氧化还原特性中产生强烈的干扰。根据光学数据和氧化还原数据以及DFT计算,它们的HOMO和LUMO能量随着胺的官能化而提高,而相应的前沿轨道高能级随着硫醚,对甲氧基苯基或硫醚的官能化而降低。对叔丁基苯基。外围取代与大环的有效相互作用产生了发色团,其全色吸收在300至750-850 nm之间。