Silica- and polymer-supported platinum(II) polypyridyl complexes: synthesis and application in photosensitized oxidation of alkenes

Square-planar polypyridine platinum(II) complexes have been introduced into a silica/polymer matrix by covalent ligand modi. cation. The photophysical properties of the supported matrices are well retained as their model complexes, and the quantum yields for singlet oxygen (O-1(2)) generation are comparable with that of TPP (tetraphenylporphyrin) under similar conditions. A preliminary application in photosensitized oxidation indicates the silica/polymer-supported matrices are promising, which can be reused without loss of reactivity by a simple filtration. Moreover, the polymer-supported matrix exhibits excellent compatibility in various solvents.