Department of Chemistry, CB#3290, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
J Am Chem Soc. 2012 Mar 7;134(9):3991-4. doi: 10.1021/ja211271m. Epub 2012 Feb 22.
Amplified luminescence quenching has been demonstrated in metal-organic frameworks (MOFs) composed of Ru(II)-bpy building blocks with long-lived, largely triplet metal-to-ligand charge-transfer excited states. Strong non-covalent interactions between the MOF surface and cationic quencher molecules coupled with rapid energy transfer through the MOF microcrystal facilitates amplified quenching with a 7000-fold enhancement of the Stern-Völmer quenching constant for methylene blue compared to a model complex.
已在由 Ru(II)-bpy 构建块组成的具有长寿命、主要为三重态金属-配体电荷转移激发态的金属有机骨架（MOFs）中证明了放大的发光猝灭。MOF 表面与阳离子猝灭分子之间的强非共价相互作用以及通过 MOF 微晶体的快速能量转移使得放大猝灭成为可能，与模型配合物相比，亚甲蓝的 Stern-Völmer 猝灭常数增强了 7000 倍。
