Martínez-Agramunt Víctor, Peris Eduardo
Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universitat Jaume I , Av. Vicente Sos Baynat s/n , Castellón E-12071 , Spain.
Inorg Chem. 2019 Sep 3;58(17):11836-11842. doi: 10.1021/acs.inorgchem.9b02097. Epub 2019 Aug 12.
Singlet oxygen has recently attracted a great deal of attention due to its strong oxidizing properties, which makes it useful in organic synthesis and biological studies. However, the photosensitizers that are required for singlet oxygen generation remain inadequate due to their often low thermal and photochemical stabilities. Here we describe the use of a palladium-conjoined metallosquare with encapsulated fullerenes (C or C), which behaves as an efficient and photochemically stable singlet oxygen photosensitizer. The metallocage with the encapsulated fullerenes can oxidize a series of cyclic and acyclic alkenes at room temperature via visible light-induced singlet oxygen generation, using oxygen molecules in air at atmospheric pressure. These reactions take advantage of the excellent spin-converting properties of fullerenes, which make them excellent agents for singlet oxygen production.
单线态氧因其强大的氧化特性最近备受关注，这使其在有机合成和生物学研究中很有用处。然而，由于用于产生单线态氧的光敏剂通常热稳定性和光化学稳定性较低，它们仍然存在不足。在此，我们描述了一种带有包封富勒烯（C或C）的钯连接金属方，它表现为一种高效且光化学稳定的单线态氧光敏剂。带有包封富勒烯的金属笼可以在室温下通过可见光诱导产生单线态氧，利用大气压力下空气中的氧分子氧化一系列环状和非环状烯烃。这些反应利用了富勒烯出色的自旋转换特性，这使其成为产生单线态氧的优异试剂。
