Converting 3D rigid metal-organic frameworks (MOFs) to 2D flexible networks via ligand exchange for enhanced CO2/N2 and CH4/N2 separation.

@article{He2015Converting3R,
  title={Converting 3D rigid metal-organic frameworks (MOFs) to 2D flexible networks via ligand exchange for enhanced CO2/N2 and CH4/N2 separation.},
  author={Yingdian He and Jin Shang and Qinfen Gu and Gang Li and Jiaye Li and Ranjeet Singh and Penny Xiao and Paul A. Webley},
  journal={Chemical communications},
  year={2015},
  volume={51 79},
  pages={14716-9}
}
We report a synthetic strategy for constructing a novel flexible MOF from a rigid parent structure by ligand exchange. This is the first reported study on introducing flexible heterogeneity into a rigid structure via substantial structural rearrangement. The daughter material exhibits enhanced gas separation selectivity compared with the parent.