Gated Channels and Selectivity Tuning of CO2over N2Sorption by Post-Synthetic Modification of a UiO-66-Type Metal–Organic Framework

Alexander Kronast; Sebastian Eckstein; Peter T. Altenbuchner; Konrad Hindelang; Sergei I. Vagin; Bernhard Rieger

doi:10.1002/chem.201602318

Gated Channels and Selectivity Tuning of CO₂over N₂Sorption by Post-Synthetic Modification of a UiO-66-Type Metal–Organic Framework

Alexander Kronast, Sebastian Eckstein, Peter T. Altenbuchner, Konrad Hindelang, Sergei I. Vagin, Bernhard Rieger

Wacker-Chair of Macromolecular Chemistry

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

The highly porous and stable metal–organic framework (MOF) UiO-66 was altered using post-synthetic modifications (PSMs). Prefunctionalization allowed the introduction of carbon double bonds into the framework through a four-step synthesis from 2-bromo-1,4-benzenedicarboxylic acid; the organic linker 2-allyl-1,4-benzenedicarboxylic acid was obtained. The corresponding functionalized MOF (UiO-66-allyl) served as a platform for further PSMs. From UiO-66-allyl, epoxy, dibromide, thioether, diamine, and amino alcohol functionalities were synthesized. The abilities of these compounds to adsorb CO₂and N₂were compared, which revealed the structure–selectivity correlations. All synthesized MOFs showed profound thermal stability together with an increased ability for selective CO₂uptake and molecular gate functionalities at low temperatures.

Original language	English
Pages (from-to)	12800-12807
Number of pages	8
Journal	Chemistry - A European Journal
Volume	22
Issue number	36
DOIs	https://doi.org/10.1002/chem.201602318
State	Published - 26 Aug 2016

Keywords

UiO-66
carbon dioxide sorption
gate effects
metal–organic frameworks
post-synthetic modification

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title = "Gated Channels and Selectivity Tuning of CO2over N2Sorption by Post-Synthetic Modification of a UiO-66-Type Metal–Organic Framework",

abstract = "The highly porous and stable metal–organic framework (MOF) UiO-66 was altered using post-synthetic modifications (PSMs). Prefunctionalization allowed the introduction of carbon double bonds into the framework through a four-step synthesis from 2-bromo-1,4-benzenedicarboxylic acid; the organic linker 2-allyl-1,4-benzenedicarboxylic acid was obtained. The corresponding functionalized MOF (UiO-66-allyl) served as a platform for further PSMs. From UiO-66-allyl, epoxy, dibromide, thioether, diamine, and amino alcohol functionalities were synthesized. The abilities of these compounds to adsorb CO2and N2were compared, which revealed the structure–selectivity correlations. All synthesized MOFs showed profound thermal stability together with an increased ability for selective CO2uptake and molecular gate functionalities at low temperatures.",

keywords = "UiO-66, carbon dioxide sorption, gate effects, metal–organic frameworks, post-synthetic modification",

author = "Alexander Kronast and Sebastian Eckstein and Altenbuchner, {Peter T.} and Konrad Hindelang and Vagin, {Sergei I.} and Bernhard Rieger",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2016",

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AU - Kronast, Alexander

AU - Eckstein, Sebastian

AU - Altenbuchner, Peter T.

AU - Hindelang, Konrad

AU - Vagin, Sergei I.

AU - Rieger, Bernhard

PY - 2016/8/26

Y1 - 2016/8/26

N2 - The highly porous and stable metal–organic framework (MOF) UiO-66 was altered using post-synthetic modifications (PSMs). Prefunctionalization allowed the introduction of carbon double bonds into the framework through a four-step synthesis from 2-bromo-1,4-benzenedicarboxylic acid; the organic linker 2-allyl-1,4-benzenedicarboxylic acid was obtained. The corresponding functionalized MOF (UiO-66-allyl) served as a platform for further PSMs. From UiO-66-allyl, epoxy, dibromide, thioether, diamine, and amino alcohol functionalities were synthesized. The abilities of these compounds to adsorb CO2and N2were compared, which revealed the structure–selectivity correlations. All synthesized MOFs showed profound thermal stability together with an increased ability for selective CO2uptake and molecular gate functionalities at low temperatures.

AB - The highly porous and stable metal–organic framework (MOF) UiO-66 was altered using post-synthetic modifications (PSMs). Prefunctionalization allowed the introduction of carbon double bonds into the framework through a four-step synthesis from 2-bromo-1,4-benzenedicarboxylic acid; the organic linker 2-allyl-1,4-benzenedicarboxylic acid was obtained. The corresponding functionalized MOF (UiO-66-allyl) served as a platform for further PSMs. From UiO-66-allyl, epoxy, dibromide, thioether, diamine, and amino alcohol functionalities were synthesized. The abilities of these compounds to adsorb CO2and N2were compared, which revealed the structure–selectivity correlations. All synthesized MOFs showed profound thermal stability together with an increased ability for selective CO2uptake and molecular gate functionalities at low temperatures.

KW - UiO-66

KW - carbon dioxide sorption

KW - gate effects

KW - metal–organic frameworks

KW - post-synthetic modification

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DO - 10.1002/chem.201602318

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JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 36

ER -

Gated Channels and Selectivity Tuning of CO₂over N₂Sorption by Post-Synthetic Modification of a UiO-66-Type Metal–Organic Framework

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