A Cu-based metal-organic framework with two types of connecting nodes as catalyst for oxygen activation

Using a ditopic organic linker 4-(1H-pyrazol-4-yl)benzoic acid (H2pba), FICN-6, a metal-organic frame-work containing both Cu2(O2CR)4 and Cu3(OH)(pyz)3(O2CR) secondary building units (SBUs), was synthe-sized. FICN-6 adopts in an unusual intercatenated structure with SBUs from two distinct networks con-necting to each other. Presence of Cu3 clusters makes FICN-6 a good heterogeneous catalyst for oxygen activation and aerobic oxidative C-C coupling of organic boronic acids.& COPY; 2023 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.