Flexibility in Metal–Organic Frameworks: A fundamental understanding

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Expansion and contraction of structurally flexible Metal–Organic Frameworks (MOFs) or Porous Coordination Polymers (PCPs) have been extensively studied from different structural and application perspectives including crystal engineering, structural characterization, and gas adsorption-separation applications. The flexibility of the MOFs or PCPs depends on a number of factors including the nature of secondary building units (SBUs), organic linkers, pore geometry and/or solvent molecules. The flexibility can lead to unique properties, especially in gas-adsorption-separation related applications that is not observed in rigid frameworks. In this review, we offer a brief summary regarding a fundamental understanding of framework expansion–contraction in flexible porous MOFs in terms of their design and structure tunability by covering representative examples in the literature.




Elsaidi, S. K., Mohamed, M. H., Banerjee, D., & Thallapally, P. K. (2018, March 1). Flexibility in Metal–Organic Frameworks: A fundamental understanding. Coordination Chemistry Reviews. Elsevier B.V. https://doi.org/10.1016/j.ccr.2017.11.022

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