Metal-ion-dependent gas sorptivity of elastic layer-structured MOFs

Atsushi Kondo; Ayako Chinen; Hiroshi Kajiro; Tomohiro Nakagawa; Kenichi Kato; Masaki Takata; Yoshiyuki Hattori; Fujio Okino; Tomonori Ohba; Katsumi Kaneko; Hirofumi Kanoh

doi:10.1002/chem.200901208

Metal-ion-dependent gas sorptivity of elastic layer-structured MOFs

Atsushi Kondo, Ayako Chinen, Hiroshi Kajiro, Tomohiro Nakagawa, Kenichi Kato, Masaki Takata, Yoshiyuki Hattori, Fujio Okino, Tomonori Ohba, Katsumi Kaneko, Hirofumi Kanoh

SRIS - SR Core Research Division

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

60 Citations (Scopus)

Abstract

Gas adsorptivities of elastic layer-structured (ELS) metal-organic frameworks (MOFs) were analyzed using different metal ions. Single-crystal analyses of ELM-12 (Cu) and ELM-22 (Co) showed that each metal is coordinated by four bpy ligands in equatorial positions and two OTf anions in axial positions in an octahedral geometry to form quite similar two-dimensional square-grid sheets. ELM-12 (Cu) undergoes structural transformation under vacuum heating and its interlayer distances decrease when the hydrogen-bonding networks with and without guest molecules are changed. The weight of the metal species is one of the most important factors impacting the amount of adsorption on the rigid MOFs. The results reveal that by controlling the coordination field of a metal ion the gas adsorptivity of the flexible can be altered and ELMs can be potentially utilized for effective gas separation and storage.

Original language	English
Pages (from-to)	7549-7553
Number of pages	5
Journal	Chemistry - A European Journal
Volume	15
Issue number	31
DOIs	https://doi.org/10.1002/chem.200901208
Publication status	Published - 2009 Aug 3

Keywords

Coordination structures
Dynamic adsorption
Metal-organic frameworks
Polymers

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10.1002/chem.200901208

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title = "Metal-ion-dependent gas sorptivity of elastic layer-structured MOFs",

abstract = "Gas adsorptivities of elastic layer-structured (ELS) metal-organic frameworks (MOFs) were analyzed using different metal ions. Single-crystal analyses of ELM-12 (Cu) and ELM-22 (Co) showed that each metal is coordinated by four bpy ligands in equatorial positions and two OTf anions in axial positions in an octahedral geometry to form quite similar two-dimensional square-grid sheets. ELM-12 (Cu) undergoes structural transformation under vacuum heating and its interlayer distances decrease when the hydrogen-bonding networks with and without guest molecules are changed. The weight of the metal species is one of the most important factors impacting the amount of adsorption on the rigid MOFs. The results reveal that by controlling the coordination field of a metal ion the gas adsorptivity of the flexible can be altered and ELMs can be potentially utilized for effective gas separation and storage.",

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author = "Atsushi Kondo and Ayako Chinen and Hiroshi Kajiro and Tomohiro Nakagawa and Kenichi Kato and Masaki Takata and Yoshiyuki Hattori and Fujio Okino and Tomonori Ohba and Katsumi Kaneko and Hirofumi Kanoh",

year = "2009",

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doi = "10.1002/chem.200901208",

language = "English",

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T1 - Metal-ion-dependent gas sorptivity of elastic layer-structured MOFs

AU - Kondo, Atsushi

AU - Chinen, Ayako

AU - Kajiro, Hiroshi

AU - Nakagawa, Tomohiro

AU - Kato, Kenichi

AU - Takata, Masaki

AU - Hattori, Yoshiyuki

AU - Okino, Fujio

AU - Ohba, Tomonori

AU - Kaneko, Katsumi

AU - Kanoh, Hirofumi

PY - 2009/8/3

Y1 - 2009/8/3

N2 - Gas adsorptivities of elastic layer-structured (ELS) metal-organic frameworks (MOFs) were analyzed using different metal ions. Single-crystal analyses of ELM-12 (Cu) and ELM-22 (Co) showed that each metal is coordinated by four bpy ligands in equatorial positions and two OTf anions in axial positions in an octahedral geometry to form quite similar two-dimensional square-grid sheets. ELM-12 (Cu) undergoes structural transformation under vacuum heating and its interlayer distances decrease when the hydrogen-bonding networks with and without guest molecules are changed. The weight of the metal species is one of the most important factors impacting the amount of adsorption on the rigid MOFs. The results reveal that by controlling the coordination field of a metal ion the gas adsorptivity of the flexible can be altered and ELMs can be potentially utilized for effective gas separation and storage.

AB - Gas adsorptivities of elastic layer-structured (ELS) metal-organic frameworks (MOFs) were analyzed using different metal ions. Single-crystal analyses of ELM-12 (Cu) and ELM-22 (Co) showed that each metal is coordinated by four bpy ligands in equatorial positions and two OTf anions in axial positions in an octahedral geometry to form quite similar two-dimensional square-grid sheets. ELM-12 (Cu) undergoes structural transformation under vacuum heating and its interlayer distances decrease when the hydrogen-bonding networks with and without guest molecules are changed. The weight of the metal species is one of the most important factors impacting the amount of adsorption on the rigid MOFs. The results reveal that by controlling the coordination field of a metal ion the gas adsorptivity of the flexible can be altered and ELMs can be potentially utilized for effective gas separation and storage.

KW - Coordination structures

KW - Dynamic adsorption

KW - Metal-organic frameworks

KW - Polymers

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EP - 7553

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 31

ER -

Metal-ion-dependent gas sorptivity of elastic layer-structured MOFs

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Keywords

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