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Li J, Wu JX, Wei ML, Yang C, Dong Q, Yin Z, Kurmoo M, Zeng MH. Supramolecular Interactions Induce Dynamics in Metal-Organic Layers to Selectively Separate Acetylene from Carbon Dioxide. Inorg Chem 2024; 63:6033-6041. [PMID: 38500387 DOI: 10.1021/acs.inorgchem.4c00350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
We report the synthesis and structural characterization of a 2D metal-organic framework with AB-packing layers, [Co2(pybz)2(CH3COO)2]·DMF (Co2, pybz= 4-(4-pyridyl)benzoate), containing a stable (4,4)-grid network fabricated by paddle-wheel nodes, ditopic pybz, and acetate ligands. After removal of the guest, the layer structure is retained but reorganized into an ABCD packing mode in the activated phase (Co2a). Consequently, the intralayer square windows (7.2 × 5.0 Å2) close, while the interlayer separation is decreased slightly from 3.69 to 3.45 Å, leaving a narrow gap. Importantly, the dangling methyl group of the acetate with H-bonds to the adjacent layers and also the well-distributed π-π interactions between the aromatic rings of neighboring layers facilitate the structural stability. These weak supramolecular interactions further allow for favorable dynamic exfoliation of the layers, which promotes efficient adsorption of C2H2 (41.6 cm3 g-1) over CO2 with an adsorption ratio of 6.3 (0.5 bar, 298 K). The effective separation performance of equimolar C2H2/CO2 was verified by cycling breakthrough experiments and was even tolerable to moisture (R.H = 52%). DFT calculations, in situ PXRD, and PDF characterization reveal that the favorable retention of C2H2 rather than that of CO2 is due to its H-bond formation with the paddle-wheel oxygen atoms that triggers the increase in interlayer separation during C2H2 adsorption.
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Affiliation(s)
- Jian Li
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
| | - Jia-Xin Wu
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
| | - Mei-Ling Wei
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
| | - Chuang Yang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Qiubing Dong
- School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Zheng Yin
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
| | - Mohamedally Kurmoo
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
- Institut de Chimie de Strasbourg, CNRS-UMR 7177, Université de Strasbourg, 4 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Ming-Hua Zeng
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
- School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China
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Schwotzer F, Horak J, Senkovska I, Schade E, Gorelik TE, Wollmann P, Anh ML, Ruck M, Kaiser U, Weidinger IM, Kaskel S. Cooperative Assembly of 2D-MOF Nanoplatelets into Hierarchical Carpets and Tubular Superstructures for Advanced Air Filtration. Angew Chem Int Ed Engl 2022; 61:e202117730. [PMID: 35285126 PMCID: PMC9315001 DOI: 10.1002/anie.202117730] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Indexed: 11/10/2022]
Abstract
Clean air is an indispensable prerequisite for human health. The capture of small toxic molecules requires the development of advanced materials for air filtration. Two-dimensional nanomaterials offer highly accessible surface areas but for real-world applications their assembly into well-defined hierarchical mesostructures is essential. DUT-134(Cu) ([Cu2 (dttc)2 ]n , dttc=dithieno[3,2-b : 2',3'-d]thiophene-2,6-dicarboxylate]) is a metal-organic framework forming platelet-shaped particles, that can be organized into complex structures, such as millimeter large free-standing layers (carpets) and tubes. The structured material demonstrates enhanced accessibility of open metal sites and significantly enhanced H2 S adsorption capacity in gas filtering tests compared with traditional bulk analogues.
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Affiliation(s)
- Friedrich Schwotzer
- Inorganic Chemistry Center I, Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
| | - Jacob Horak
- Inorganic Chemistry Center I, Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
| | - Irena Senkovska
- Inorganic Chemistry Center I, Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
| | - Elke Schade
- IWS Dresden, Winterbergstr. 28, 01277, Dresden, Germany
| | - Tatiana E Gorelik
- Electron Microscopy Group of Materials Science (EMMS), Central Facility for Electron Microscopy, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Philipp Wollmann
- Electrochemistry, Technische Universität Dresden, Zellescher Weg 19, 01069, Dresden, Germany
| | - Mai Lê Anh
- Inorganic Chemistry II, Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
| | - Michael Ruck
- Inorganic Chemistry II, Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany.,Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187, Dresden, Germany
| | - Ute Kaiser
- Electron Microscopy Group of Materials Science (EMMS), Central Facility for Electron Microscopy, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Inez M Weidinger
- Electrochemistry, Technische Universität Dresden, Zellescher Weg 19, 01069, Dresden, Germany
| | - Stefan Kaskel
- Inorganic Chemistry Center I, Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany.,IWS Dresden, Winterbergstr. 28, 01277, Dresden, Germany
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Schwotzer F, Horak J, Senkovska I, Schade E, Gorelik TE, Wollmann P, Anh ML, Ruck M, Kaiser U, Weidinger IM, Kaskel S. Cooperative Assembly of 2D‐MOF Nanoplatelets into Hierarchical Carpets and Tubular Superstructures for Advanced Air Filtration. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Friedrich Schwotzer
- Inorganic Chemistry Center I Technische Universität Dresden Bergstr. 66 01069 Dresden Germany
| | - Jacob Horak
- Inorganic Chemistry Center I Technische Universität Dresden Bergstr. 66 01069 Dresden Germany
| | - Irena Senkovska
- Inorganic Chemistry Center I Technische Universität Dresden Bergstr. 66 01069 Dresden Germany
| | - Elke Schade
- IWS Dresden Winterbergstr. 28 01277 Dresden Germany
| | - Tatiana E. Gorelik
- Electron Microscopy Group of Materials Science (EMMS) Central Facility for Electron Microscopy Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Philipp Wollmann
- Electrochemistry Technische Universität Dresden Zellescher Weg 19 01069 Dresden Germany
| | - Mai Lê Anh
- Inorganic Chemistry II Technische Universität Dresden Bergstr. 66 01069 Dresden Germany
| | - Michael Ruck
- Inorganic Chemistry II Technische Universität Dresden Bergstr. 66 01069 Dresden Germany
- Max Planck Institute for Chemical Physics of Solids Nöthnitzer Str. 40 01187 Dresden Germany
| | - Ute Kaiser
- Electron Microscopy Group of Materials Science (EMMS) Central Facility for Electron Microscopy Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Inez M. Weidinger
- Electrochemistry Technische Universität Dresden Zellescher Weg 19 01069 Dresden Germany
| | - Stefan Kaskel
- Inorganic Chemistry Center I Technische Universität Dresden Bergstr. 66 01069 Dresden Germany
- IWS Dresden Winterbergstr. 28 01277 Dresden Germany
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