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Article Dans Une Revue Chemical Science Année : 2022

Cutting-edge molecular modelling to unveil new microscopic insights into the guest-controlled flexibility of metal–organic frameworks

Résumé

Metal-organic frameworks are a class of porous solids that exhibit intriguing flexibility under stimuli, leading often to reversible giant structural changes upon guest adsorption. DUT-49(Cu) and MIL-53(Cr) are fascinating flexible MOFs owing to their guest-induced breathing and negative gas adsorption behaviors respectively. Molecular simulation is one of the most relevant tools to examine these phenomena at the atomistic scale and gain a unique understanding of the physics behind them. Although molecular dynamics and Monte Carlo simulations are widely used in the field of porous materials, these methods hardly consider the structural deformation of a soft material upon guest adsorption. In this work, a cutting-edge osmotic molecular dynamics approach is developed to consider simultaneously the fluid adsorption process and material flexibility. We demonstrate that this newly developed computational strategy offers a unique opportunity to gain unprecedented molecular insights into the flexibility of this class of materials.
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hal-03906449 , version 1 (02-06-2023)

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Paternité - Pas d'utilisation commerciale

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Hengli Zhao, Camille Pelgrin-Morvan, Guillaume Maurin, Aziz Ghoufi. Cutting-edge molecular modelling to unveil new microscopic insights into the guest-controlled flexibility of metal–organic frameworks. Chemical Science, 2022, 13 (48), pp.14336-14345. ⟨10.1039/d2sc04174j⟩. ⟨hal-03906449⟩
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