Strong H2 binding and selective gas adsorption within the microporous coordination solid Mg3(O2C-C 10H6-CO2)3

Mircea Dincǎ; Jeffrey R. Long

doi:10.1021/ja0523082

Strong H₂ binding and selective gas adsorption within the microporous coordination solid Mg₃(O₂C-C ₁₀H₆-CO₂)₃

Mircea Dincǎ, Jeffrey R. Long

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

723 Scopus citations

Abstract

The synthesis of Mg₃(NDC)₃(DEF)₄ (NDC = 2,6-naphthalenedicarboxylate, DEF = N,N-diethylformamide, 1), the first porous metal-organic framework solid incorporating Mg²⁺ ions, is reported. Its structure consists of linear Mg₃ units linked via NDC bridges to form a three-dimensional framework, featuring one-dimensional channels filled with DEF molecules. Significantly, its framework is fully analogous to that observed within Zn₃(NDC)₃(CH₃OH)₂·2DMF·H₂O (2), demonstrating that Mg²⁺ ions can directly substitute for the heavier Zn²⁺ ions. Compound 1 is readily desolvated by heating at 190 °C to give the microporous solid Mg₃(NDC)₃, exhibiting a BET surface area of 190 m²/g. Adsorption isotherms measured at 77 and 87 K indicate high H₂ adsorption enthalpies in the range 7.0-9.5 kJ/mol, depending on the degree of loading. In addition, the material displays selective adsorption of H₂ or O₂ over N₂ or CO, suggesting possible applications in gas separation technologies.

Original language	English (US)
Pages (from-to)	9376-9377
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	127
Issue number	26
DOIs	https://doi.org/10.1021/ja0523082
State	Published - Jul 6 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja0523082

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title = "Strong H2 binding and selective gas adsorption within the microporous coordination solid Mg3(O2C-C 10H6-CO2)3",

abstract = "The synthesis of Mg3(NDC)3(DEF)4 (NDC = 2,6-naphthalenedicarboxylate, DEF = N,N-diethylformamide, 1), the first porous metal-organic framework solid incorporating Mg2+ ions, is reported. Its structure consists of linear Mg3 units linked via NDC bridges to form a three-dimensional framework, featuring one-dimensional channels filled with DEF molecules. Significantly, its framework is fully analogous to that observed within Zn3(NDC)3(CH3OH)2·2DMF·H2O (2), demonstrating that Mg2+ ions can directly substitute for the heavier Zn2+ ions. Compound 1 is readily desolvated by heating at 190 °C to give the microporous solid Mg3(NDC)3, exhibiting a BET surface area of 190 m2/g. Adsorption isotherms measured at 77 and 87 K indicate high H2 adsorption enthalpies in the range 7.0-9.5 kJ/mol, depending on the degree of loading. In addition, the material displays selective adsorption of H2 or O2 over N2 or CO, suggesting possible applications in gas separation technologies.",

author = "Mircea Dincǎ and Long, \{Jeffrey R.\}",

year = "2005",

month = jul,

day = "6",

doi = "10.1021/ja0523082",

language = "English (US)",

volume = "127",

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journal = "Journal of the American Chemical Society",

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T1 - Strong H2 binding and selective gas adsorption within the microporous coordination solid Mg3(O2C-C 10H6-CO2)3

AU - Dincǎ, Mircea

AU - Long, Jeffrey R.

PY - 2005/7/6

Y1 - 2005/7/6

N2 - The synthesis of Mg3(NDC)3(DEF)4 (NDC = 2,6-naphthalenedicarboxylate, DEF = N,N-diethylformamide, 1), the first porous metal-organic framework solid incorporating Mg2+ ions, is reported. Its structure consists of linear Mg3 units linked via NDC bridges to form a three-dimensional framework, featuring one-dimensional channels filled with DEF molecules. Significantly, its framework is fully analogous to that observed within Zn3(NDC)3(CH3OH)2·2DMF·H2O (2), demonstrating that Mg2+ ions can directly substitute for the heavier Zn2+ ions. Compound 1 is readily desolvated by heating at 190 °C to give the microporous solid Mg3(NDC)3, exhibiting a BET surface area of 190 m2/g. Adsorption isotherms measured at 77 and 87 K indicate high H2 adsorption enthalpies in the range 7.0-9.5 kJ/mol, depending on the degree of loading. In addition, the material displays selective adsorption of H2 or O2 over N2 or CO, suggesting possible applications in gas separation technologies.

AB - The synthesis of Mg3(NDC)3(DEF)4 (NDC = 2,6-naphthalenedicarboxylate, DEF = N,N-diethylformamide, 1), the first porous metal-organic framework solid incorporating Mg2+ ions, is reported. Its structure consists of linear Mg3 units linked via NDC bridges to form a three-dimensional framework, featuring one-dimensional channels filled with DEF molecules. Significantly, its framework is fully analogous to that observed within Zn3(NDC)3(CH3OH)2·2DMF·H2O (2), demonstrating that Mg2+ ions can directly substitute for the heavier Zn2+ ions. Compound 1 is readily desolvated by heating at 190 °C to give the microporous solid Mg3(NDC)3, exhibiting a BET surface area of 190 m2/g. Adsorption isotherms measured at 77 and 87 K indicate high H2 adsorption enthalpies in the range 7.0-9.5 kJ/mol, depending on the degree of loading. In addition, the material displays selective adsorption of H2 or O2 over N2 or CO, suggesting possible applications in gas separation technologies.

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JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 26

ER -

Strong H₂ binding and selective gas adsorption within the microporous coordination solid Mg₃(O₂C-C ₁₀H₆-CO₂)₃

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