| 초록 |
Enhancement of hydrolytic stability of metal−organic frameworks (MOFs) is a challenging issue in MOF chemistry due to the limitation of their applications under a humid environment. Meanwhile, inner sphere electron transfer has constituted one of the most extensively studied subjects in contemporary chemistry. In this presentation, we show a new conceptual “coordinative reduction” of Cu2+ ion, which is realized in a paddlewheel MOF, HKUST-1, with a postsynthetic manner via inner sphere “single” electron transfer from hydroquinone (H2Q) to Cu2+ through its coordination bond. H2Q treatment of HKUST-1 under anhydrous conditions leads to the single charge (1+) reduction of approximately 30% of Cu2+ ions. Furthermore, we show that the coordinative reduction results in substantial enhancement of the hydrolytic stability of HKUST-1 to the extent that its structure remains intact even after exposure to humid air for two years. |
