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Liu Y, Liu FZ, Li S, Liu H, Yan K. Biasing the Formation of Solution-Unstable Intermediates in Coordination Self-Assembly by Mechanochemistry. Chemistry 2023; 29:e202302563. [PMID: 37670119 DOI: 10.1002/chem.202302563] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/07/2023]
Abstract
Due to the reversible nature of coordination bonds and solvation effect, coordination self-assembly pathways are often difficult to elucidate experimentally in solution, as intermediates and products are in constant equilibration. The present study shows that some of these transient and high-energy self-assembly intermediates can be accessed by means of ball-milling approaches. Among them, highly aqueous-unstable Pd3 L11 and Pd6 L14 open-cage intermediates of the framed Fujita Pd6 L14 cage and Pd2 L22 , Pd3 L21 and Pd4 L22 intermediates of Mukherjee Pd6 L24 capsule are successfully trapped in solid-state, where Pd=tmedaPd2+ , L1=2,4,6-tris(4-pyridyl)-1,3,5-triazine and L2=1,3,5-tris(1-imidazolyl)benzene). Their structures are assigned by a combination of solution-based characterization tools such as standard NMR spectroscopy, DOSY NMR, ESI-MS and X-ray diffraction. Collectively, these results highlight the opportunity of using mechanochemistry to access unique chemical space with vastly different reactivity compared to conventional solution-based supramolecular self-assembly reactions.
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Affiliation(s)
- Yan Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Fang-Zi Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Shi Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Hua Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - KaKing Yan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
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Chen Z, Yuan B, Zhan G, Li Y, Li J, Chen J, Peng Y, Wang L, You C, Li J. Energy-Efficient Biphasic Solvents for Industrial Carbon Capture: Role of Physical Solvents on CO 2 Absorption and Phase Splitting. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:13305-13313. [PMID: 36094167 DOI: 10.1021/acs.est.2c05687] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Physical solvent is a promising alternative for the phase splitting of solvent to drastically reduce the regeneration energy during CO2 capture. Here, an aqueous biphasic solvent, optimally composed of 30 wt % polyamine (N, N-dimethylpropylamine, DMPA) and 50 wt % physical solvent (polyethyleneglycol dimethyl ether, NHD), is prepared, which presents high cyclic loading, low regeneration energy, and good stability. L16(45) orthogonal tests are performed to comprehensively evaluate the mass-transfer kinetics and the effect of crucial conditions, verifying the weak effect of NHD solvent on mass transfer. The solvent effect of NHD could decrease the energy barrier of carbamate generation from zwitterions (DMPA+COO-) to enhance chemical absorption. The low polarity of the NHD solvent provides source motivation and accelerates phase splitting. Time-space resolution distribution of CO2 capacity is established based on a scale-up separator with 5 L solvent, which supports multiscale force analysis for the various stages during phase splitting. The drag force of the homogeneous cluster was first introduced into separation dynamics, referred to as an important reason for the various splitting behaviors of a scale-up separator.
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Affiliation(s)
- Zhen Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing100084, P.R. China
- Key Laboratory for Thermal Science and Power Engineering of the Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing100084, P.R. China
| | - Bingling Yuan
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing102206, P.R. China
| | - Guoxiong Zhan
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing100084, P.R. China
| | - Yuchen Li
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing102206, P.R. China
| | - Jinyang Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing100084, P.R. China
| | - Jianjun Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing100084, P.R. China
| | - Yue Peng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing100084, P.R. China
| | - Lidong Wang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing102206, P.R. China
| | - Changfu You
- Key Laboratory for Thermal Science and Power Engineering of the Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing100084, P.R. China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing100084, P.R. China
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Liu Y, Liu FZ, Yan K. Mechanochemical Access to a Short-Lived Cyclic Dimer Pd 2 L 2 : An Elusive Kinetic Species En Route to Molecular Triangle Pd 3 L 3 and Molecular Square Pd 4 L 4. Angew Chem Int Ed Engl 2022; 61:e202116980. [PMID: 35191567 DOI: 10.1002/anie.202116980] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Indexed: 11/08/2022]
Abstract
Pd-based molecular square Pd4 L4 and triangle Pd3 L3 represent the molecular ancestors of metal-coordination polyhedra that have been an integral part of the field for the last 30 years. Conventional solution-based reactions between cis-protected Pd ions and 2,2'-bipyridine exclusively give Pd4 L4 and/or Pd3 L3 as the sole products. We herein show that, under solvent-free mechanochemical conditions, the self-assembly energy landscape can be thermodynamically manipulated to form an elusive cyclic dimer Pd2 L2 for the first time. In the absence of solvent, Pd2 L2 is indefinitely stable in the solid-state, but converts rapidly to its thermodynamic products Pd3 L3 and Pd4 L4 in solution, confirming Pd2 L2 as a short-lived kinetic species in the solution-based self-assembly process. Our results highlight how mechanochemistry grants access to a vastly different chemical space than available under conventional solution conditions. This provides a unique opportunity to isolate elusive species in self-assembly processes that are too reactive to both "see" and "capture".
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Affiliation(s)
- Yan Liu
- School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China
| | - Fang-Zi Liu
- School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China
| | - KaKing Yan
- School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China
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Liu Y, Liu F, Yan K. Mechanochemical Access to a Short‐Lived Cyclic Dimer Pd
2
L
2
: An Elusive Kinetic Species En Route to Molecular Triangle Pd
3
L
3
and Molecular Square Pd
4
L
4. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yan Liu
- School of Physical Science and Technology ShanghaiTech University 201210 Shanghai China
| | - Fang‐Zi Liu
- School of Physical Science and Technology ShanghaiTech University 201210 Shanghai China
| | - KaKing Yan
- School of Physical Science and Technology ShanghaiTech University 201210 Shanghai China
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Bhandari P, Mondal B, Howlader P, Mukherjee PS. Face‐Directed Tetrahedral Organic Cage Anchored Palladium Nanoparticles for Selective Homocoupling Reactions. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pallab Bhandari
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 India
| | - Bijnaneswar Mondal
- Department of Chemistry Guru Ghasidas Vishwavidyalaya Bilaspur Chhattisgarh 495009 India
| | - Prodip Howlader
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 India
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Valsartan metal complexes as capture and reversible storage media for methane. APPLIED PETROCHEMICAL RESEARCH 2020. [DOI: 10.1007/s13203-020-00247-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
AbstractThree valsartan metal (tin, nickel, and magnesium) complexes were examined as capture and storage media for methane under high temperature (323 K) and pressure (50 bar) conditions. The surface morphology of the complexes were examined using Field emission scanning electron microscopy and displayed porous structures comprising particles of different shapes and sizes. The narrow pore-size distribution of metal complexes makes them suitable materials for methane capture. The methane adsorption–desorption isotherms of the metal complexes were reversible. The tin(IV) and nickel(II) complexes exhibited type-III physisorption isotherms, while the magnesium(II) complex displayed a type-IV physisorption isotherm. Both types of isotherms are typical for mesoporous materials. The magnesium(II) complex was more efficient compared with the tin(IV) and nickel(II) complexes. It exhibited a remarkable methane uptake capacity of 71.68 cm3/g under optimized conditions.
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