An excellently stable heterovalent copper-organic framework based on Cu4I4 and Cu(COO)(2)N-2 SBUs: The catalytic performance for CO2 cycloaddition reaction and Knoevenagel condensation reaction

摘要

A novel 3D heterovalent Cu-based MOF, [Cu2Cu4I4(ANA)(4)(DMF)(4)](n) (denoted as complex 1), was successfully designed and synthesized by the self-assembly of CuI and 5-aminonicotinic acid (HANA) under the solvothermal synthesis. The prepared sample has the fascinating structure and was analysed in detail by lots of testing methods. Due to the excellent stability and various catalytic sites, this material can catalyse CO2 cycloaddition reaction and Knoevenagel condensation reaction; meanwhile, complex 1 has outstanding recyclability and keep catalytic performance at least four cycles.