Synergistic interaction of Re complex and amine functionalized multiple ligands in metal-organic frameworks for conversion of carbon dioxide

Abstract A metal-organic framework (MOF) is composed of secondary building units (SBUs) of metal ions and organic ligands to link each SBU. Moreover, the photosynthetic synthesis of a valuable CO chemical from carbon dioxide (CO2) represents an important class of appealing methods. Herein, we find t...

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Autores principales: Un Jin Ryu, Sang Jun Kim, Hyung-Kyu Lim, Hyungjun Kim, Kyung Min Choi, Jeung Ku Kang
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Publicado: Nature Portfolio 2017
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spelling oai:doaj.org-article:007b93e294ef4519973db7e3db7d68e72021-12-02T16:07:06ZSynergistic interaction of Re complex and amine functionalized multiple ligands in metal-organic frameworks for conversion of carbon dioxide10.1038/s41598-017-00574-12045-2322https://doaj.org/article/007b93e294ef4519973db7e3db7d68e72017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00574-1https://doaj.org/toc/2045-2322Abstract A metal-organic framework (MOF) is composed of secondary building units (SBUs) of metal ions and organic ligands to link each SBU. Moreover, the photosynthetic synthesis of a valuable CO chemical from carbon dioxide (CO2) represents an important class of appealing methods. Herein, we find that a molecular photocatalyst with high selectivity and activity can be designed via a fine balance in the proximity of Re complex (ReI(CO)3(BPYDC)(Cl), BPYDC = 2,2′-bipyridine-5,5′-dicarboxylate) and -NH2 functionalized multiple ligands composing a MOF photocatalyst, denoted as Re-MOF-NH2. These ligands in Re-MOF-NH2 has been confirmed by infrared, UV-visible, and 1H nuclear magnetic resonance spectra. Moreover, we show from extended X-ray absorption fine structure and in-situ infrared spectra that the bond corresponding to Re-CO upon introduction of -NH2 functional groups is divided into asymmetric bonds of 1.4 Å and 2.3 Å along with different CO2 vibrations, thus making the configuration of carbonyl groups in a Re metal complex become asymmetric in addition to aiding formation of CO2 intermediates within Re-MOF-NH2. Indeed, both of the uneven electron distribution in asymmetric carbonyl groups for Re-CO and the intermolecular stabilization of carbamate intermediates are proven to give the approximately 3-fold increase in photocatalytic activity for conversion of CO2 into CO.Un Jin RyuSang Jun KimHyung-Kyu LimHyungjun KimKyung Min ChoiJeung Ku KangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Un Jin Ryu
Sang Jun Kim
Hyung-Kyu Lim
Hyungjun Kim
Kyung Min Choi
Jeung Ku Kang
Synergistic interaction of Re complex and amine functionalized multiple ligands in metal-organic frameworks for conversion of carbon dioxide
description Abstract A metal-organic framework (MOF) is composed of secondary building units (SBUs) of metal ions and organic ligands to link each SBU. Moreover, the photosynthetic synthesis of a valuable CO chemical from carbon dioxide (CO2) represents an important class of appealing methods. Herein, we find that a molecular photocatalyst with high selectivity and activity can be designed via a fine balance in the proximity of Re complex (ReI(CO)3(BPYDC)(Cl), BPYDC = 2,2′-bipyridine-5,5′-dicarboxylate) and -NH2 functionalized multiple ligands composing a MOF photocatalyst, denoted as Re-MOF-NH2. These ligands in Re-MOF-NH2 has been confirmed by infrared, UV-visible, and 1H nuclear magnetic resonance spectra. Moreover, we show from extended X-ray absorption fine structure and in-situ infrared spectra that the bond corresponding to Re-CO upon introduction of -NH2 functional groups is divided into asymmetric bonds of 1.4 Å and 2.3 Å along with different CO2 vibrations, thus making the configuration of carbonyl groups in a Re metal complex become asymmetric in addition to aiding formation of CO2 intermediates within Re-MOF-NH2. Indeed, both of the uneven electron distribution in asymmetric carbonyl groups for Re-CO and the intermolecular stabilization of carbamate intermediates are proven to give the approximately 3-fold increase in photocatalytic activity for conversion of CO2 into CO.
format article
author Un Jin Ryu
Sang Jun Kim
Hyung-Kyu Lim
Hyungjun Kim
Kyung Min Choi
Jeung Ku Kang
author_facet Un Jin Ryu
Sang Jun Kim
Hyung-Kyu Lim
Hyungjun Kim
Kyung Min Choi
Jeung Ku Kang
author_sort Un Jin Ryu
title Synergistic interaction of Re complex and amine functionalized multiple ligands in metal-organic frameworks for conversion of carbon dioxide
title_short Synergistic interaction of Re complex and amine functionalized multiple ligands in metal-organic frameworks for conversion of carbon dioxide
title_full Synergistic interaction of Re complex and amine functionalized multiple ligands in metal-organic frameworks for conversion of carbon dioxide
title_fullStr Synergistic interaction of Re complex and amine functionalized multiple ligands in metal-organic frameworks for conversion of carbon dioxide
title_full_unstemmed Synergistic interaction of Re complex and amine functionalized multiple ligands in metal-organic frameworks for conversion of carbon dioxide
title_sort synergistic interaction of re complex and amine functionalized multiple ligands in metal-organic frameworks for conversion of carbon dioxide
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/007b93e294ef4519973db7e3db7d68e7
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AT hyungkyulim synergisticinteractionofrecomplexandaminefunctionalizedmultipleligandsinmetalorganicframeworksforconversionofcarbondioxide
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AT kyungminchoi synergisticinteractionofrecomplexandaminefunctionalizedmultipleligandsinmetalorganicframeworksforconversionofcarbondioxide
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