CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190 (China).
Angew Chem Int Ed Engl. 2015 May 26;54(22):6536-9. doi: 10.1002/anie.201501732. Epub 2015 Apr 14.
Singlet oxygen ((1) O2 ) is of great interest because of its potential applications in photodynamic therapy, photooxidation of toxic molecules, and photochemical synthesis. Herein, we report novel metallophthalocyanine (MPc) based conjugated microporous polymers (MPc-CMPs) as photosensitizers for the generation of (1) O2 . The rigid microporous structure efficiently improves the exposure of the majority of the MPc units to oxygen. The MPc-CMPs also exhibit an enhanced light-harvesting capability in the far-red region through their extended π-conjugation systems. Their microporous structure and excellent absorption capability for long-wavelength photons result in the MPc-CMPs showing high efficiency for (1) O2 generation upon irradiation with 700 nm light, as evident by using 1,3-diphenylisobenzofuran as an (1) O2 trap. These results indicate that MPc-CMPs can be considered as promising photosensitizers for the generation of (1) O2 .
单线态氧（(1)O2）因其在光动力疗法、有毒分子的光氧化和光化学合成中的潜在应用而备受关注。在此，我们报告了新型基于金属酞菁（MPc）的共轭微孔聚合物（MPc-CMPs）作为产生(1)O2的光敏剂。刚性微孔结构有效地提高了大多数 MPc 单元与氧气的接触。MPc-CMPs 通过其扩展的π共轭体系在远红区表现出增强的光捕获能力。它们的微孔结构和对长波长光子的优异吸收能力导致 MPc-CMPs 在 700nm 光照射下产生(1)O2 的效率很高，这可以通过使用 1,3-二苯基异苯并呋喃作为(1)O2 捕获剂来证明。这些结果表明，MPc-CMPs 可以被认为是产生(1)O2 的有前途的光敏剂。
