An ethynyl-modified interpenetrated metal–organic framework for highly efficient selective gas adsorption

Yu, Xueyue; Huang, Ziyang; Krishna, Rajamani; Luo, Xiaolong; Liu, Yunling

doi:10.1039/d3dt02834h

Cited by 1 publication

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“…As we know, 2-fold interpenetrated complexes are liable to have structure changes when the guest solvent molecules are removed. , To examine the possible structure transformation of FJI-W-66 , the fresh crystal of FJI-W-66 is activated by being immersed in acetone to exchange guest DMF molecules and then degassed under a vacuum to obtain guest-free FJI-W-66a . Single-crystal X-ray diffraction analysis reveals that FJI-W-66 experiences distinct structural transformation after activation (Figures a,b and S7–S10).…”

Section: Resultsmentioning

confidence: 99%

Flexible Microporous Framework for One-Step Acquisition of Ethylene from Ternary C₂ Hydrocarbons

Zhang,

Zou,

Zhou

et al. 2024

Inorg. Chem.

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One-step purification of ethylene (C 2 H 4 ) from ternary C 2 hydrocarbon mixtures is a crucial task and an enduring challenge because of their similar molecular size and physical properties. Owing to their intriguing structural dynamics, flexible MOFs have attracted more attention for gas adsorption and separation. Herein, we report a flexible MOF FJI-W-66 that exhibits rarely seen "breathing" behaviors for C 2 hydrocarbons. Upon activation, the channels of guest-free FJI-W-66a significantly contract to a nearly closed-pore state. FJI-W-66a shows the stepwise adsorption isotherms for C 2 hydrocarbons, which suggests the occurrence of structural transformation between less open and more open phases. Breakthrough experiments provide evidence that FJI-W-66a can selectively separate C 2 H 4 from C 2 H 2 /C 2 H 4 / C 2 H 6 mixtures with different ratios under ambient conditions, realizing the one-step acquisition of C 2 H 4 from ternary C 2 hydrocarbons.

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Section: Resultsmentioning

confidence: 99%

Flexible Microporous Framework for One-Step Acquisition of Ethylene from Ternary C₂ Hydrocarbons

Zhang,

Zou,

Zhou

et al. 2024

Inorg. Chem.

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An ethynyl-modified interpenetrated metal–organic framework for highly efficient selective gas adsorption

Abstract: Compound 1 has been constructed by using expanded ethynyl-modified tetracarboxylates ligands and Cu2(CO2)4 paddle-wheel building units, and exhibits excellent adsorption and separation behavior for light hydrocarbons.

Cited by 1 publication

References 65 publications

Flexible Microporous Framework for One-Step Acquisition of Ethylene from Ternary C₂ Hydrocarbons

Flexible Microporous Framework for One-Step Acquisition of Ethylene from Ternary C₂ Hydrocarbons

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An ethynyl-modified interpenetrated metal–organic framework for highly efficient selective gas adsorption

Abstract: Compound 1 has been constructed by using expanded ethynyl-modified tetracarboxylates ligands and Cu2(CO2)4 paddle-wheel building units, and exhibits excellent adsorption and separation behavior for light hydrocarbons.

Cited by 1 publication

References 65 publications

Flexible Microporous Framework for One-Step Acquisition of Ethylene from Ternary C2 Hydrocarbons

Flexible Microporous Framework for One-Step Acquisition of Ethylene from Ternary C2 Hydrocarbons

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Flexible Microporous Framework for One-Step Acquisition of Ethylene from Ternary C₂ Hydrocarbons

Flexible Microporous Framework for One-Step Acquisition of Ethylene from Ternary C₂ Hydrocarbons