A structure–dynamics relationship enables prediction of the water hydrogen bond exchange activation energy from experimental data

Piskulich, Zeke A.; Laage, Damien; Thompson, Ward H.

doi:10.1039/d3sc04495e

Chem. Sci.

2024

DOI: 10.1039/d3sc04495e

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A structure–dynamics relationship enables prediction of the water hydrogen bond exchange activation energy from experimental data

Zeke A. Piskulich,

Damien Laage,

Ward H. Thompson

Abstract: It has long been understood that the structural features of water are determined by hydrogen bonding (H-bonding) and that the exchange of, or "jumps" between, H-bond partners underlies many of...

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Cited by 3 publications

References 66 publications

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Metal‐Ligand Bonds Based Reprogrammable and Re‐Processable Supramolecular Liquid Crystal Elastomer Network

Zhou,

Jin,

Zhu

et al. 2024

Angewandte Chemie

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Dynamic covalent bonds endow liquid crystal elastomers (LCEs) with network rearrangeability, facilitating the fixation of mesogen alignment induced by external forces and enabling reversible actuation. In comparison, the bond exchange of supramolecular interactions is typically too significant to stably maintain the programmed alignment, particularly under intensified external stimuli. Nevertheless, the remaking and recycling of supramolecular interaction‐based polymer networks are more accessible than those based on dynamic covalent bonds, as the latter are difficult to completely dissociate. Thus, preparing an LCE that possesses both supramolecular‐like exchangeability and covalent bond‐level stability remains a significant challenge. In this work, we addressed this issue by employing metal‐ligand bonds as the crosslinking points of LCE networks. As such, mesogen alignment can be repeatedly encoded through metal‐ligand bond exchange and stably maintained after programming, since the bond exchange rate is sufficiently slow when the programming and actuation temperatures are below the bond dissociation temperature. More importantly, the metal‐ligand bonds can be completely dissociated at high temperatures, allowing the LCE network to be dissolved in a solvent and reshaped into desired geometries via solution casting. Building on these properties, our LCEs can be fabricated into versatile actuators, such as reversible folding origami, artificial muscles, and soft robotics.

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Metal‐Ligand Bonds Based Reprogrammable and Re‐Processable Supramolecular Liquid Crystal Elastomer Network

Zhou,

Jin,

Zhu

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

show abstract

Metal‐Ligand Bonds Based Reprogrammable and Re‐Processable Supramolecular Liquid Crystal Elastomer Network

Zhou,

Jin,

Zhu

et al. 2024

Angew Chem Int Ed

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Novel integration of dual-modified Zr-MOFs and graphene oxide nanocomposites in polyethersulfone membranes: Enhanced permeability, selectivity, and fouling resistance

Gadallah,

Khalil,

Karam

et al. 2025

Separation and Purification Technology

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A structure–dynamics relationship enables prediction of the water hydrogen bond exchange activation energy from experimental data

Abstract: It has long been understood that the structural features of water are determined by hydrogen bonding (H-bonding) and that the exchange of, or "jumps" between, H-bond partners underlies many of...

Cited by 3 publications

References 66 publications

Metal‐Ligand Bonds Based Reprogrammable and Re‐Processable Supramolecular Liquid Crystal Elastomer Network

Metal‐Ligand Bonds Based Reprogrammable and Re‐Processable Supramolecular Liquid Crystal Elastomer Network

Metal‐Ligand Bonds Based Reprogrammable and Re‐Processable Supramolecular Liquid Crystal Elastomer Network

Novel integration of dual-modified Zr-MOFs and graphene oxide nanocomposites in polyethersulfone membranes: Enhanced permeability, selectivity, and fouling resistance

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