Control of the Metal Composition in Bimetallic Mg/Zn(dobpdc) Constructed from a One-Dimensional Zn-Based Template

Hyojin Kim; Hwa Young Lee; Dong Won Kang; Minjung Kang; Jong Hyeak Choe; Woo Ram Lee; Chang Seop Hong

doi:10.1021/acs.inorgchem.9b02126

Control of the Metal Composition in Bimetallic Mg/Zn(dobpdc) Constructed from a One-Dimensional Zn-Based Template

Hyojin Kim, Hwa Young Lee, Dong Won Kang, Minjung Kang, Jong Hyeak Choe, Woo Ram Lee, Chang Seop Hong

Department of Chemistry

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

6 Citations (Scopus)

Abstract

While mixed-metal ions into a single framework can be randomly arranged in most reported cases, it is synthetically challenging to control and organize the distribution of different metal ions over a three-dimensional structure. In this context, for the family of M₂(dobpdc) with broad applications, we present the first case of a bimetallic Mg/Zn(dobpdc) framework with a 1:1 compositional ratio, based on a one-dimensional Zn(H₂dobpdc) template, which would not be obtained by the conventional reaction of the corresponding metal salts. Moreover, we demonstrate that the resultant compositional ratios in the bimetallic M′/Zn(dobpdc) (M′ = Mg, Mn, Co, Ni) are governed by the ionic radii of the metals and the affinity of the metal ions for the linker groups. Notably, the unexpected gradual reduction in the adsorption enthalpy and the mixed CO₂ adsorption feature are revealed in Mg/Zn(dobpdc) and its diamine-grafted framework, respectively.

Original language	English
Pages (from-to)	14107-14111
Number of pages	5
Journal	Inorganic Chemistry
Volume	58
Issue number	20
DOIs	https://doi.org/10.1021/acs.inorgchem.9b02126
Publication status	Published - 2019 Oct 21

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "Control of the Metal Composition in Bimetallic Mg/Zn(dobpdc) Constructed from a One-Dimensional Zn-Based Template",

abstract = "While mixed-metal ions into a single framework can be randomly arranged in most reported cases, it is synthetically challenging to control and organize the distribution of different metal ions over a three-dimensional structure. In this context, for the family of M2(dobpdc) with broad applications, we present the first case of a bimetallic Mg/Zn(dobpdc) framework with a 1:1 compositional ratio, based on a one-dimensional Zn(H2dobpdc) template, which would not be obtained by the conventional reaction of the corresponding metal salts. Moreover, we demonstrate that the resultant compositional ratios in the bimetallic M′/Zn(dobpdc) (M′ = Mg, Mn, Co, Ni) are governed by the ionic radii of the metals and the affinity of the metal ions for the linker groups. Notably, the unexpected gradual reduction in the adsorption enthalpy and the mixed CO2 adsorption feature are revealed in Mg/Zn(dobpdc) and its diamine-grafted framework, respectively.",

author = "Hyojin Kim and Lee, {Hwa Young} and Kang, {Dong Won} and Minjung Kang and Choe, {Jong Hyeak} and Lee, {Woo Ram} and Hong, {Chang Seop}",

note = "Funding Information: This work was supported by the Korea CCS R&D Center (KCRC) grant funded by the Korean government (the Ministry of Science, ICT and Future Planning; Grant NRF-2012-0008901), Basic Science Research Program (Grant NRF-2018R1A2A1A05079297), Priority Research Centers Program (Grant NRF-2019R1A6A1A11044070), National Research Council of Science & Technology grant by the Korea government (Grant CRC-14-1-KRICT), and PAL. Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",

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AU - Kim, Hyojin

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AU - Kang, Dong Won

AU - Kang, Minjung

AU - Choe, Jong Hyeak

AU - Lee, Woo Ram

AU - Hong, Chang Seop

N1 - Funding Information: This work was supported by the Korea CCS R&D Center (KCRC) grant funded by the Korean government (the Ministry of Science, ICT and Future Planning; Grant NRF-2012-0008901), Basic Science Research Program (Grant NRF-2018R1A2A1A05079297), Priority Research Centers Program (Grant NRF-2019R1A6A1A11044070), National Research Council of Science & Technology grant by the Korea government (Grant CRC-14-1-KRICT), and PAL. Publisher Copyright: Copyright © 2019 American Chemical Society.

PY - 2019/10/21

Y1 - 2019/10/21

N2 - While mixed-metal ions into a single framework can be randomly arranged in most reported cases, it is synthetically challenging to control and organize the distribution of different metal ions over a three-dimensional structure. In this context, for the family of M2(dobpdc) with broad applications, we present the first case of a bimetallic Mg/Zn(dobpdc) framework with a 1:1 compositional ratio, based on a one-dimensional Zn(H2dobpdc) template, which would not be obtained by the conventional reaction of the corresponding metal salts. Moreover, we demonstrate that the resultant compositional ratios in the bimetallic M′/Zn(dobpdc) (M′ = Mg, Mn, Co, Ni) are governed by the ionic radii of the metals and the affinity of the metal ions for the linker groups. Notably, the unexpected gradual reduction in the adsorption enthalpy and the mixed CO2 adsorption feature are revealed in Mg/Zn(dobpdc) and its diamine-grafted framework, respectively.

AB - While mixed-metal ions into a single framework can be randomly arranged in most reported cases, it is synthetically challenging to control and organize the distribution of different metal ions over a three-dimensional structure. In this context, for the family of M2(dobpdc) with broad applications, we present the first case of a bimetallic Mg/Zn(dobpdc) framework with a 1:1 compositional ratio, based on a one-dimensional Zn(H2dobpdc) template, which would not be obtained by the conventional reaction of the corresponding metal salts. Moreover, we demonstrate that the resultant compositional ratios in the bimetallic M′/Zn(dobpdc) (M′ = Mg, Mn, Co, Ni) are governed by the ionic radii of the metals and the affinity of the metal ions for the linker groups. Notably, the unexpected gradual reduction in the adsorption enthalpy and the mixed CO2 adsorption feature are revealed in Mg/Zn(dobpdc) and its diamine-grafted framework, respectively.

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Control of the Metal Composition in Bimetallic Mg/Zn(dobpdc) Constructed from a One-Dimensional Zn-Based Template

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