Extremely Photostable Electron‐Deficient Phthalocyanines that Generate High Levels of Singlet Oxygen
作者:Taniyuki Furuyama、Yusuke Miyaji、Kazuya Maeda、Hajime Maeda、Masahito Segi
DOI:10.1002/chem.201805082
日期:——
exhibited attractive photostability upon exposure to singlet oxygen as a bleaching agent. The photostability of such complexes that may manifest concomitantly to the generation of high levels of singlet oxygen was attributed to the presence of the electron‐withdrawing groups, which results in energetically low‐lying highest occupied molecular orbitals.
carboxylic acid anchoring group at the peripheral (SubPcs 1, 2) or axial position (SubPc 3) were synthesized and used as sensitizers for photocatalytic H2 production, for the first time. SubPc 3/TiO2 shows the best photocatalytic activity with a hydrogenevolution rate of 1396 μmol h−1, which is much higher than that of SubPcs 1 and 2 (771 and 658 μmol g−1, respectively). This work clearly shows that
包括:在所述外围设备的羧酸锚固基团(SubPcs一系列SubPcs的1,2(SubPc)或轴向位置3)的合成,并用作敏化剂的光催化ħ 2生产,为第一次。SubPc 3 / TiO 2显示出最佳的光催化活性,氢释放速率为1396μmolh -1,远高于SubPcs 1和SubPcs 2(分别为771和658μmolg -1)。这项工作清楚地表明,考虑到它们的光学和氧化还原特性,SubPcs是光驱动水分解系统的有希望的候选者。
Periphery engineering to enhance the chiroptical response of β-isoindigo-based aza-BODIPY analogs
作者:Chun-Yan Yu、Yongqiang Xu、Xian Bi、Zhigang Ni、Hongping Xiao、Xingen Hu、Hua Lu