Combining solvent-assisted linker exchange and transmetallation strategies to obtain a new non-catenated nickel (II) pillared-paddlewheel MOF

• A non-catenated nickel (II) pillared paddlewheel metal-organic framework is prepared;
• The combination of solvent-assisted linker exchange and transmetallation is applied;
• The Ni(II)-based metal-organic framework appears to be unattainable de novo;
• Ni(II)-MOF has enhanced N2 uptake compared to its isostructural Zn(II) analogue.

A non-catenated nickel (II) pillared paddlewheel metal-organic framework is synthesized through a combination of solvent-assisted linker exchange and transmetallation. Compared to its isostructural Zn(II) analogue, the nickel (II) pillared paddlewheel metal-organic framework features an enhanced N2 sorption performance. It is notable that the nickel (II)-based metal-organic framework could not (in our hands) be synthesized de novo. The experimental results validate that multiple building-block-replacement (BBR) methods can be utilized to access materials that are challenging to synthesize directly.

A new non-catenated nickel (II) pillar-layer metal-organic framework is achieved through the combination of solvent-assisted linker exchange (SALE) and transmetallation.Figure optionsDownload as PowerPoint slide