Micheroni Daniel, Lin Zekai, Chen Yu-Sheng, Lin Wenbin
Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States.
ChemMatCARS , The University of Chicago , Chicago , Illinois 60637 , United States.
Inorg Chem. 2019 Jun 17;58(12):7645-7648. doi: 10.1021/acs.inorgchem.9b00396. Epub 2019 May 24.
We report the synthesis, characterization, and photophysical and photochemical properties of [Ru(bpy)(py)]@Zn-oxalate metal-organic framework (Ru@MOF; bpy is 2,2'-bipyridine and py is pyridine). In Ru@MOF, the cavities of the anionic Zn-oxalate MOF tightly encapsulate [Ru(bpy)(py)] complexes, thereby altering the vibrational and electronic states of [Ru(bpy)(py)] and preventing photosubstitution of py ligands. [Ru(bpy)(py)] in Ru@MOF exhibits significantly increased photoluminescence lifetime and quantum yield, likely through destabilizing the dd state and enhancing photochemical stability.
我们报道了[Ru(bpy)(py)]@草酸锌金属有机框架（Ru@MOF；bpy为2,2'-联吡啶，py为吡啶）的合成、表征以及光物理和光化学性质。在Ru@MOF中，阴离子型草酸锌MOF的空腔紧密包裹[Ru(bpy)(py)]配合物，从而改变[Ru(bpy)(py)]的振动和电子态，并防止py配体的光取代反应。Ru@MOF中的[Ru(bpy)(py)]表现出显著增加的光致发光寿命和量子产率，这可能是通过使dd态不稳定并提高光化学稳定性实现的。
