Gridlike 3d-4f heterometallic macrocycles for highly efficient conversion of CO2 into cyclic carbonates

• Two novel heterometallic macrocycles Ln 8 Zn 4 L 6 based on functional ligand were designed and synthesized. • Ln 8 Zn 4 L 6 display high catalytic activities and selectivity in coupling reaction of CO 2 with wide substrate scopes. • Ln 8 Zn 4 L 6 showed good tolerance to oxygen and water. Ln 8 Zn 4 L 6 has good recyclability. • The catalyst showed efficient catalytic performance of the coupling reaction in the flue gas. Recycle CO 2 as a...