Structural transitions during the water sorption process in two layered metal hydrogen-bonded organic frameworks and the effect of the H-bond strength between the layers

Tsobnang, Patrice Kenfack; Sakam, Yannick Thiery Nchedoung; Fröhlich, Dominik; Porcher, Florence; Rustam, Lina; Hastürk, Emrah; Janiak, Christoph

doi:10.1039/d2ce00138a

CrystEngComm

2022

DOI: 10.1039/d2ce00138a

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Structural transitions during the water sorption process in two layered metal hydrogen-bonded organic frameworks and the effect of the H-bond strength between the layers

Patrice Kenfack Tsobnang

Yannick Thiery Nchedoung Sakam

Dominik Fröhlich

et al.

Abstract: The supramolecular network material [Co(amp)3][Cr(ox)3] (amp = 2-aminomethylpyridine, ox = oxalate) (I’) shows in its powder X-ray diffraction (PXRD) carpet plot during the water adsorption process two sets of diffraction...

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“…Rahmani et al found that nonporous TPBD allows for highly selective capture of p -xylene, undergoing a structure transformation from TPBD to TPBD-PX . Molecular crystals with hydrophilic functional groups, such as amino and 2,4-diamino triazine (DAT) groups might be promising adsorbent materials for selective recognition and separation of water. − …”

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confidence: 99%

Hydration/Dehydration Induced Reversible Transformation between a Porous Hydrogen-Bonded Organic Framework and a Nonporous Molecular Crystal for Highly Efficient Gas Dehydration

Wang,

Song,

et al. 2024

Chem Bio Eng.

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Gas dehydration is a critical process in gas transportation and chemical reactions, yet traditional drying agents require an energy-intensive dehydration and regeneration step. Here, we present a nonporous molecular crystal called Melem that can be synthesized and scaled up through solid-state synthesis methods. Melem exhibits exceptional water selectivity in gas dehydration and can be reactivated under moderate conditions. According to the single-crystal structure and powder X-ray diffraction studies, a reversible structural transformation between Melem and its hydrated form, Melem−H 2 O, induced by hydration/dehydration processes has been observed. Melem displays water adsorption properties with a maximum uptake of 11 mmol•g −1 at p/p 0 = 0.92 and 298 K. Additionally, Melem retained consistent water capture capacities after 5 adsorption−desorption cycles. The remarkable gas dehydration performance of Melem was confirmed by column breakthrough experiments, which achieved a separation factor of up to 654.

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confidence: 99%

Hydration/Dehydration Induced Reversible Transformation between a Porous Hydrogen-Bonded Organic Framework and a Nonporous Molecular Crystal for Highly Efficient Gas Dehydration

Wang,

Song,

et al. 2024

Chem Bio Eng.

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A multiscale perspective on cluster-based layered materials: Design and function optimization toward catalytic and energy storage applications

Qian,

Xu,

Zhang

et al. 2024

Fundamental Research

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Synthesis, Structural Characterization, and Guest Exchange Properties of Hydrogen-Bonded Organic Frameworks Based on Bis(benzimidazole)ZnCl₂ Complexes

et al. 2022

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Hydrogen-bonded organic frameworks (HOFs) based on coordination compounds constitute a developing class of interesting porous materials. Herein, we report on the synthesis, crystal structures, and guest exchange properties of four HOFs based on zinc dichlorido complexes that bear a bis(benzimidazolyl)methane ligand (bis(benzimidazole)ZnCl2). The porous structures of these bis(benzimidazole)ZnCl2-based HOFs are characterized predominantly by intermolecular N–H···Cl hydrogen bonds in conjunction with π–π interactions. One of these HOFs was found to exchange guest molecules via single-crystal-to-single-crystal transformations with or without structural change. A single-crystal X-ray diffraction study revealed that the guest exchange accompanied by a structural change is induced by the cleavage of the N–H···Cl hydrogen bonds between the bis(benzimidazole)ZnCl2 complexes, followed by the formation of alternate hydrogen bonds with guest molecules. This result suggests that the use of weaker N–H···Cl hydrogen bonds than those typically used for the construction of HOFs (e.g., carboxylic acid dimers, N-heterocycles, and charge-assisted moieties) may represent a convenient strategy to synthesize flexible HOFs.

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Structural transitions during the water sorption process in two layered metal hydrogen-bonded organic frameworks and the effect of the H-bond strength between the layers

Abstract: The supramolecular network material [Co(amp)3][Cr(ox)3] (amp = 2-aminomethylpyridine, ox = oxalate) (I’) shows in its powder X-ray diffraction (PXRD) carpet plot during the water adsorption process two sets of diffraction...

Cited by 3 publications

References 43 publications

Hydration/Dehydration Induced Reversible Transformation between a Porous Hydrogen-Bonded Organic Framework and a Nonporous Molecular Crystal for Highly Efficient Gas Dehydration

Hydration/Dehydration Induced Reversible Transformation between a Porous Hydrogen-Bonded Organic Framework and a Nonporous Molecular Crystal for Highly Efficient Gas Dehydration

A multiscale perspective on cluster-based layered materials: Design and function optimization toward catalytic and energy storage applications

Synthesis, Structural Characterization, and Guest Exchange Properties of Hydrogen-Bonded Organic Frameworks Based on Bis(benzimidazole)ZnCl₂ Complexes

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Structural transitions during the water sorption process in two layered metal hydrogen-bonded organic frameworks and the effect of the H-bond strength between the layers

Abstract: The supramolecular network material [Co(amp)3][Cr(ox)3] (amp = 2-aminomethylpyridine, ox = oxalate) (I’) shows in its powder X-ray diffraction (PXRD) carpet plot during the water adsorption process two sets of diffraction...

Cited by 3 publications

References 43 publications

Hydration/Dehydration Induced Reversible Transformation between a Porous Hydrogen-Bonded Organic Framework and a Nonporous Molecular Crystal for Highly Efficient Gas Dehydration

Hydration/Dehydration Induced Reversible Transformation between a Porous Hydrogen-Bonded Organic Framework and a Nonporous Molecular Crystal for Highly Efficient Gas Dehydration

A multiscale perspective on cluster-based layered materials: Design and function optimization toward catalytic and energy storage applications

Synthesis, Structural Characterization, and Guest Exchange Properties of Hydrogen-Bonded Organic Frameworks Based on Bis(benzimidazole)ZnCl2 Complexes

Contact Info

Product

Resources

About

Synthesis, Structural Characterization, and Guest Exchange Properties of Hydrogen-Bonded Organic Frameworks Based on Bis(benzimidazole)ZnCl₂ Complexes