Metallophthalocyanine-Based Conjugated Microporous Polymers as Highly Efficient Photosensitizers for Singlet Oxygen Generation
Metallophthalocyanine-Based Conjugated Microporous Polymers as Highly Efficient Photosensitizers for Singlet Oxygen Generation
复制标题
金属酞菁基共轭微孔聚合物作为单线态氧气产生的高效光敏剂
DOI：
10.1002/anie.201501732
复制
发表时间：
2015-05-26
影响因子：
16.6
通讯作者：
Han, Bao-Hang
中科院分区：
文献类型：
--
作者：
Ding, Xuesong;Han, Bao-Hang
单线态氧（O-1（2））由于其在光动力治疗、有毒分子的光氧化和光化学合成中的潜在应用而引起人们极大的兴趣。在此，我们报道了新型金属酞菁（MPc）基共轭微孔聚合物（MPc-CMP）作为光敏剂产生O-1（2）。刚性微孔结构有效地改善了大多数MPc单元对氧气的暴露。MPc-CMP还通过其扩展的共辄系统在远红区域中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-CMP在用700 nm光照射时显示出高的O-1（2）生成效率，如通过使用1，3-二苯基异苯并呋喃作为O-1（2）陷阱所证明的。这些结果表明，MPc-CMP可以被认为是用于产生O-1（2）的有前途的光敏剂。
Singlet oxygen (O-1(2)) 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 O-1(2). 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 -conjugation systems. Their microporous structure and excellent absorption capability for long-wavelength photons result in the MPc-CMPs showing high efficiency for O-1(2) generation upon irradiation with 700nm light, as evident by using 1,3-diphenylisobenzofuran as an O-1(2) trap. These results indicate that MPc-CMPs can be considered as promising photosensitizers for the generation of O-1(2).