1
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Wang Z, Wang W, Luo AQ, Yuan LM. Recent progress for chiral stationary phases based on chiral porous materials in high-performance liquid chromatography and gas chromatography separation. J Sep Sci 2024; 47:e2400073. [PMID: 38965996 DOI: 10.1002/jssc.202400073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 05/24/2024] [Accepted: 05/31/2024] [Indexed: 07/06/2024]
Abstract
Chirality is a fundamental property of nature. Separation and analysis of racemates are of great importance in the fields of medicine and the production of chiral biopharmaceutical intermediates. Chiral chromatography has the characteristics of a wide separation range, fast separation speed, and high efficiency. The development and preparation of novel chiral stationary phases with good chiral recognition and separation capacity is the core and key of chiral chromatographic separation and analysis. In this work, the representative research progress of novel chiral porous crystal materials including chiral covalent organic frameworks, chiral porous organic cages, chiral metal-organic frameworks, and chiral metal-organic cages used as chiral stationary phases of capillary gas chromatography and high-performance liquid chromatography over the last 4 years is reviewed in detail. The chiral recognition and separation properties of the representative studies in this review are also introduced and discussed.
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Affiliation(s)
- Zhen Wang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Wei Wang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Ai-Qin Luo
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Li-Ming Yuan
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
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2
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Rondelli M, Pasán J, Fernández I, Martín T. Predisposition in Dynamic Covalent Chemistry: The Role of Non-Covalent Interactions in the Assembly of Tetrahedral Boronate Cages. Chemistry 2024; 30:e202400896. [PMID: 38507133 DOI: 10.1002/chem.202400896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 03/22/2024]
Abstract
Directional bonding strategies guide the design of complex molecular architectures, yet challenges arise due to emergent behavior. Rigid structures face geometric constraints and sensitivity to mismatches, hindering the efficient assembly of molecular organic cages (MOCs). Harnessing intramolecular non-covalent interactions offers a promising solution, broadening geometrical possibilities and enhancing adaptability to boost assembly yields. However, identifying these interactions remains challenging, with their full potential sometimes latent until final assembly. This study explores these challenges by synthesizing boronic acid tripods with varied oxygen positions at the tripodal feet and investigating their role in assembling tetrahedral boronate MOCs. Our results reveal substantial differences in the assembly efficiency among tripods. While the building blocks with oxygen in the benzylic position relative to the central aromatic ring form the MOCs in high yields, those with the oxygen atom directly bound to the central aromatic ring, only yield traces. Through X-ray crystallography and DFT analyses, we elucidate how intramolecular interactions profoundly influence the geometry of the building blocks and cages in a relay-like fashion, highlighting the importance of considering intramolecular interactions in the rational design of (supra)molecular architectures.
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Affiliation(s)
- Manuel Rondelli
- Molecular Science Department, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Cientícas (IPNA-CSIC) Avda. Astrofísico Francisco Sánchez 3, 38206, La Laguna, Tenerife, Spain
| | - Jorge Pasán
- Departamento de Química, Facultad de Ciencias, Laboratorio de Materiales para Análisis Químico (MAT4LL) Universidad de La Laguna, 38200, Tenerife, Spain
| | - Israel Fernández
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Tomás Martín
- Molecular Science Department, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Cientícas (IPNA-CSIC) Avda. Astrofísico Francisco Sánchez 3, 38206, La Laguna, Tenerife, Spain
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3
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Chen Y, Cao Z, Feng T, Zhang X, Li Z, Dong X, Huang S, Liu Y, Cao X, Sue ACH, Peng C, Lin X, Wang L, Li H. Enantioselective Self-Assembly of a Homochiral Tetrahedral Cage Comprising Only Achiral Precursors. Angew Chem Int Ed Engl 2024; 63:e202400467. [PMID: 38273162 DOI: 10.1002/anie.202400467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/25/2024] [Accepted: 01/25/2024] [Indexed: 01/27/2024]
Abstract
How Nature synthesizes enantiomerically pure substances from achiral or racemic resources remains a mystery. In this study, we aimed to emulate this natural phenomenon by constructing chiral tetrahedral cages through self-assembly, achieved by condensing two achiral compounds-a trisamine and a trisaldehyde. The occurrence of intercomponent CH⋅⋅⋅π interactions among the phenyl building blocks within the cage frameworks results in twisted conformations, imparting planar chirality to the tetrahedrons. In instances where the trisaldehyde precursor features electron-withdrawing ester side chains, we observed that the intermolecular CH⋅⋅⋅π forces are strong enough to prevent racemization. To attain enantioselective self-assembly, a chiral amine was introduced during the imine formation process. The addition of three equivalents of chiral amino mediator to one equivalent of the achiral trisaldehyde precursor formed a trisimino intermediate. This chiral compound was subsequently combined with the achiral trisamino precursor, leading to an imine exchange reaction that releasing the chiral amino mediator and formation of the tetrahedral cage with an enantiomeric excess (ee) of up to 75 %, exclusively composed of achiral building blocks. This experimental observation aligns with theoretical calculations based on the free energies of related cage structures. Moreover, since the chiral amine was not consumed during the imine exchange cycle, it enabled the enantioselective self-assembly of the tetrahedral cage for multiple cycles when new batches of the achiral trisaldehyde and trisamino precursors were successively added.
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Affiliation(s)
- Yixin Chen
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Ze Cao
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Tinglong Feng
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Excited-State Materials of Zhejiang Province, Hangzhou, 310058, China
| | - Xiaobo Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Zhaoyong Li
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Excited-State Materials of Zhejiang Province, Hangzhou, 310058, China
| | - Xue Dong
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Shaoying Huang
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 310027, China
| | - Yingchun Liu
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Xiaoyu Cao
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Andrew C-H Sue
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Chuanhui Peng
- The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xufeng Lin
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Linjun Wang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Excited-State Materials of Zhejiang Province, Hangzhou, 310058, China
| | - Hao Li
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 310027, China
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4
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Wu G, Zhuang SY, Xing J, Lin Q, Li ZT, Zhang DW. Modular Strategy for Constructing para-Cage[ n]arenes, meta-Cage[ n]arenes, and meta-Bimacrocyclic-Arenes. Org Lett 2024; 26:2007-2012. [PMID: 38442042 DOI: 10.1021/acs.orglett.4c00033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Here, we present a versatile modular strategy for crafting novel covalent organic cages (para-cage[n]arenes and meta-cage[n]arenes, n = 3,4) and bimacrocycles (meta-bimacrocyclic-arenes) with stable backbones and modifiable rims. These structures can be synthesized from commercially available aromatic multialdehydes in a three-step process: quantitative bromination, Suzuki-Miyaura reaction (yielding over 60%), and a rapid one-pot Friedel-Crafts reaction with paraformaldehyde. Notably, the cage[n]arenes exhibit a well-defined prismatic shape, and the bimacrocyclic-arenes display both dimeric and monomeric configurations.
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Affiliation(s)
- Gang Wu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Sheng-Yi Zhuang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Jiabin Xing
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Qihan Lin
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Zhan-Ting Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Dan-Wei Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
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5
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Kirchner P, Schramm L, Ivanova S, Shoyama K, Würthner F, Beuerle F. A Water-Stable Boronate Ester Cage. J Am Chem Soc 2024; 146:5305-5315. [PMID: 38325811 PMCID: PMC10910528 DOI: 10.1021/jacs.3c12002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 02/09/2024]
Abstract
The reversible condensation of catechols and boronic acids to boronate esters is a paradigm reaction in dynamic covalent chemistry. However, facile backward hydrolysis is detrimental for stability and has so far prevented applications for boronate-based materials. Here, we introduce cubic boronate ester cages 6 derived from hexahydroxy tribenzotriquinacenes and phenylene diboronic acids with ortho-t-butyl substituents. Due to steric shielding, dynamic exchange at the Lewis acidic boron sites is feasible only under acid or base catalysis but fully prevented at neutral conditions. For the first time, boronate ester cages 6 tolerate substantial amounts of water or alcohols both in solution and solid state. The unprecedented applicability of these materials under ambient and aqueous conditions is showcased by efficient encapsulation and on-demand release of β-carotene dyes and heterogeneous water oxidation catalysis after the encapsulation of ruthenium catalysts.
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Affiliation(s)
- Philipp
H. Kirchner
- Institut
für Organische Chemie, Julius-Maximilians-Universität
Würzburg, Am Hubland, Würzburg 97074, Germany
- Center
for Nanosystems Chemistry (CNC), Julius-Maximilians-Universität
Würzburg, Theodor-Boveri-Weg, Würzburg 97074, Germany
| | - Louis Schramm
- Institut
für Organische Chemie, Julius-Maximilians-Universität
Würzburg, Am Hubland, Würzburg 97074, Germany
- Center
for Nanosystems Chemistry (CNC), Julius-Maximilians-Universität
Würzburg, Theodor-Boveri-Weg, Würzburg 97074, Germany
| | - Svetlana Ivanova
- Institut
für Organische Chemie, Julius-Maximilians-Universität
Würzburg, Am Hubland, Würzburg 97074, Germany
- Center
for Nanosystems Chemistry (CNC), Julius-Maximilians-Universität
Würzburg, Theodor-Boveri-Weg, Würzburg 97074, Germany
| | - Kazutaka Shoyama
- Institut
für Organische Chemie, Julius-Maximilians-Universität
Würzburg, Am Hubland, Würzburg 97074, Germany
- Center
for Nanosystems Chemistry (CNC), Julius-Maximilians-Universität
Würzburg, Theodor-Boveri-Weg, Würzburg 97074, Germany
| | - Frank Würthner
- Institut
für Organische Chemie, Julius-Maximilians-Universität
Würzburg, Am Hubland, Würzburg 97074, Germany
- Center
for Nanosystems Chemistry (CNC), Julius-Maximilians-Universität
Würzburg, Theodor-Boveri-Weg, Würzburg 97074, Germany
| | - Florian Beuerle
- Institut
für Organische Chemie, Julius-Maximilians-Universität
Würzburg, Am Hubland, Würzburg 97074, Germany
- Center
for Nanosystems Chemistry (CNC), Julius-Maximilians-Universität
Würzburg, Theodor-Boveri-Weg, Würzburg 97074, Germany
- Institut
für Organische Chemie, Eberhard Karls
Universität Tübingen, Auf der Morgenstelle 18, Tübingen 72076, Germany
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6
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Xu Z, Ye Y, Liu Y, Liu H, Jiang S. Design and assembly of porous organic cages. Chem Commun (Camb) 2024; 60:2261-2282. [PMID: 38318641 DOI: 10.1039/d3cc05091b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Porous organic cages (POCs) represent a notable category of porous materials, showing remarkable material properties due to their inherent porosity. Unlike extended frameworks which are constructed by strong covalent or coordination bonds, POCs are composed of discrete molecular units held together by weak intermolecular forces. Their structure and chemical traits can be systematically tailored, making them suitable for a range of applications including gas storage and separation, molecular separation and recognition, catalysis, and proton and ion conduction. This review provides a comprehensive overview of POCs, covering their synthesis methods, structure and properties, computational approaches, and applications, serving as a primer for those who are new to the domain. A special emphasis is placed on the growing role of computational methods, highlighting how advanced data-driven techniques and automation are increasingly aiding the rapid exploration and understanding of POCs. We conclude by addressing the prevailing challenges and future prospects in the field.
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Affiliation(s)
- Zezhao Xu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Yangzhi Ye
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Yilan Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Huiyu Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Shan Jiang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
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7
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Zhang Y, Yu S, Huang X, Qin Z, Liu T, Tang G, Xie X. Preparation of porous superabsorbent particles based on starch by supercritical CO 2 drying and its water absorption mechanism. Int J Biol Macromol 2024; 258:129102. [PMID: 38163499 DOI: 10.1016/j.ijbiomac.2023.129102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/09/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
The slow water-absorption speed of starch-based superabsorbent resin (St-SAP) limits its application. In this study, porous St-SAP (P-St-SAP) was prepared by inverse suspension polymerization and supercritical CO2 drying, the aim is to provide a preparation method of fast absorbent resin. The P-St-SAP at 33 % starch content had an interpenetrating porous structure with macropores, mesopores and micropores, and the surface area, pore volume and average pore diameter were 32.06 m2·g-1, 0.116 cm3·g-1 and 21.6 nm, respectively. The water-absorption process included rapid-section, medium-section and slow-section, according with internal diffusion, double-constant and quasi second-order kinetic models, respectively. In the initial 30 s, a water-absorption speed of 262.6 g·g-1·min-1 in distilled water was much higher than some previous research results, and the equilibrium absorption value of 517.9 g·g-1 in distilled water and 72.9 g·g-1 in 0.9 % saline was better than that of non-porous St-SAP at similar starch content. Moreover, at the same stage the percentage of saline absorption ratio to equilibrium absorption value was 1.0- 2.0 times higher than that of distilled water. These research results indicate that the P-St-SAP has fast water-absorption speed and good salt resistance, which will have greater application prospects in sanitary materials, building concrete pouring, and flood control blocking piping.
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Affiliation(s)
- Youquan Zhang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Shenghua Yu
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xinyi Huang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Zuzeng Qin
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Tusong Liu
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; Guangxi Shengya Technology Group Co., Ltd, Liuzhou 545600, China
| | - Guo Tang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xinling Xie
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
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8
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Wang Z, Zhang QP, Guo F, Ma H, Liang ZH, Yi CH, Zhang C, Chen CF. Self-similar chiral organic molecular cages. Nat Commun 2024; 15:670. [PMID: 38253630 PMCID: PMC10803742 DOI: 10.1038/s41467-024-44922-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
The endeavor to enhance utility of organic molecular cages involves the evolution of them into higher-level chiral superstructures with self-similar, presenting a meaningful yet challenging. In this work, 2D tri-bladed propeller-shaped triphenylbenzene serves as building blocks to synthesize a racemic 3D tri-bladed propeller-shaped helical molecular cage. This cage, in turn, acts as a building block for a pair of higher-level 3D tri-bladed chiral helical molecular cages, featuring multilayer sandwich structures and displaying elegant characteristics with self-similarity in discrete superstructures at different levels. The evolutionary procession of higher-level cages reveals intramolecular self-shielding effects and exclusive chiral narcissistic self-sorting behaviors. Enantiomers higher-level cages can be interconverted by introducing an excess of corresponding chiral cyclohexanediamine. In the solid state, higher-level cages self-assemble into supramolecular architectures of L-helical or D-helical nanofibers, achieving the scale transformation of chiral characteristics from chiral atoms to microscopic and then to mesoscopic levels.
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Affiliation(s)
- Zhen Wang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Technology Institute, Wuhan Textile University, Wuhan, Hubei, 430200, China.
| | - Qing-Pu Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Fei Guo
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Technology Institute, Wuhan Textile University, Wuhan, Hubei, 430200, China
| | - Hui Ma
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zi-Hui Liang
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Technology Institute, Wuhan Textile University, Wuhan, Hubei, 430200, China
| | - Chang-Hai Yi
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Technology Institute, Wuhan Textile University, Wuhan, Hubei, 430200, China
| | - Chun Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Chuan-Feng Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
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9
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Holsten M, Elbert SM, Rominger F, Zhang WS, Schröder RR, Mastalerz M. Single Crystals of Insoluble Porous Salicylimine Cages. Chemistry 2023; 29:e202302116. [PMID: 37577877 DOI: 10.1002/chem.202302116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/28/2023] [Accepted: 08/11/2023] [Indexed: 08/15/2023]
Abstract
Porous organic cages (POCs) are meanwhile an established class of porous materials. Most of them are soluble to a certain extend and thus processable in or from solution. However, a few of larger salicylimine cages were reported to be insoluble in any organic solvents and thus characterized as amorphous materials. These cages were now synthesized as single-crystalline materials to get insight into packing motifs and preferred intermolecular interactions. Furthermore, the pairs of crystalline and amorphous materials for each cage allowed to compare their gas-sorption properties in both morphological states.
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Affiliation(s)
- Mattes Holsten
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Sven M Elbert
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Wen-Shan Zhang
- Bioquant, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 267, 69120, Heidelberg, Germany
| | - Rasmus R Schröder
- Bioquant, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 267, 69120, Heidelberg, Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
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10
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Ivanova S, Adamski P, Köster E, Schramm L, Fröhlich R, Beuerle F. Size Determination of Organic Cages by Diffusion NMR Spectroscopy. Chemistry 2023:e202303318. [PMID: 37966964 DOI: 10.1002/chem.202303318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 11/17/2023]
Abstract
Reliable structure elucidation of covalent organic cage compounds remains challenging as routine analysis might leave ambiguities. Diffusion-ordered NMR spectroscopy (DOSY) allows insight into the molecular size and mass of the species present in solution, but a systematic evaluation of the diffusion behavior for cage assemblies is rarely considered. Here we report the synthesis of four series of covalent organic cages based on tribenzotriquinacenes and diboronic acids with varying geometry and exohedral substituents. We provide a guideline for the consistent measurement of diffusion coefficients from 1 H-DOSY NMR spectroscopy, which was utilized to study the diffusion behavior for the whole set of cages and selected examples from the literature. For structurally similar cages, a linear correlation between the solvodynamic volume and the molecular mass allows precise size determination. For more complex systems, multiple parameters, such as window size or rigid exohedral functionalization. further modulate cage diffusion in solution.
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Affiliation(s)
- Svetlana Ivanova
- Julius-Maximilians-Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074, Würzburg, Germany
- Julius-Maximilians-Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Paul Adamski
- Julius-Maximilians-Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074, Würzburg, Germany
- Julius-Maximilians-Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Eva Köster
- Julius-Maximilians-Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074, Würzburg, Germany
- Julius-Maximilians-Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Louis Schramm
- Julius-Maximilians-Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074, Würzburg, Germany
- Julius-Maximilians-Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Rebecca Fröhlich
- Julius-Maximilians-Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074, Würzburg, Germany
- Julius-Maximilians-Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Florian Beuerle
- Julius-Maximilians-Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074, Würzburg, Germany
- Julius-Maximilians-Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, 97074, Würzburg, Germany
- Eberhard Karls Universität Tübingen, Institut für Organische Chemie, Auf der Morgenstelle 18, 72076, Tübingen, Germany
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11
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Sun X, Di M, Liu J, Gao L, Yan X, He G. Continuous Covalent Organic Frameworks Membranes: From Preparation Strategies to Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303757. [PMID: 37381640 DOI: 10.1002/smll.202303757] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/30/2023] [Indexed: 06/30/2023]
Abstract
Covalent organic frameworks (COFs) are porous crystalline polymeric materials formed by the covalent bonding of organic units. The abundant organic units library gives the COFs species diversity, easily tuned pore channels, and pore sizes. In addition, the periodic arrangement of organic units endows COFs regular and highly connected pore channels, which has led to the rapid development of COFs in membrane separations. Continuous defect-free and high crystallinity of COF membranes is the key to their application in separations, which is the most important issue to be addressed in the research. This review article describes the linkage types of covalent bonds, synthesis methods, and pore size regulation strategies of COFs materials. Further, the preparation strategies of continuous COFs membranes are highlighted, including layer-by-layer (LBL) stacking, in situ growth, interfacial polymerization (IP), and solvent casting. The applications in separation fields of continuous COFs membranes are also discussed, including gas separation, water treatment, organic solvent nanofiltration, ion conduction, and energy battery membranes. Finally, the research results are summarized and the future prospect for the development of COFs membranes are outlined. More attention may be paid to the large-scale preparation of COFs membranes and the development of conductive COFs membranes in future research.
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Affiliation(s)
- Xiaojun Sun
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Mengting Di
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Jie Liu
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Li Gao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Xiaoming Yan
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
| | - Gaohong He
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, China
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12
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Drożdż W, Ciesielski A, Stefankiewicz AR. Dynamic Cages-Towards Nanostructured Smart Materials. Angew Chem Int Ed Engl 2023; 62:e202307552. [PMID: 37449543 DOI: 10.1002/anie.202307552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/18/2023]
Abstract
The interest in capsular assemblies such as dynamic organic and coordination cages has blossomed over the last decade. Given their chemical and structural variability, these systems have found applications in diverse fields of research, including energy conversion and storage, catalysis, separation, molecular recognition, and live-cell imaging. In the exploration of the potential of these discrete architectures, they are increasingly being employed in the formation of more complex systems and smart materials. This Review highlights the most promising pathways to overcome common drawbacks of cage systems (stability, recovery) and discusses the most promising strategies for their hybridization with systems featuring various dimensionalities. Following the description of the most recent advances in the fabrication of zero to three-dimensional cage-based systems, this Review will provide the reader with the structure-dependent relationship between the employed cages and the properties of the materials.
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Affiliation(s)
- Wojciech Drożdż
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
| | - Artur Ciesielski
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
- Institut de Science et d'Ingénierie Supramoléculaires, Université de Strasbourg & CNRS, 8 allée Gaspard Monge, 67000, Strasbourg, France
| | - Artur R Stefankiewicz
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
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13
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Chen Y, Tang H, Chen H, Li H. Self-Assembly via Condensation of Imine or Its N-Substituted Derivatives. Acc Chem Res 2023; 56:2838-2850. [PMID: 37751270 DOI: 10.1021/acs.accounts.3c00475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
ConspectusCompared to traditionally used irreversible chemical reactions, dynamic covalent chemistry (DCC) including imine formation represents a more advanced technique in the preparation of molecules with complex structures and topologies, whose syntheses require the formation of many bonds. By allowing the occurrence of error checking and self-correcting, it is likely that the target molecules with high enough thermodynamic stability could be self-assembled in high or even quantitative yield. Two questions are raised herein. First, it becomes a central problem in self-assembly that how to endow a target product with high enough thermodynamic stability so that it can be produced as the major or the only product within the self-assembly library. Second, the reversible nature of dynamic bonds jeopardizes the intrinsic stability of the products. More specifically, the imine bond which represents the mostly used dynamic covalent bond, is apt to undergo hydrolysis in the presence of water. Developing new approaches to make imine more robust and compatible with water is thus of importance. In this account, we summarized the progress made in our group in the field of self-assembly based on C═N bond formation. In organic solvent where an imine bond is relatively robust, we focus on studying how to enhance the thermodynamic stability of a target molecule by introducing intramolecular forces. These noncovalent interactions either release enthalpy to favor the formation of the target molecule or preorganize the building blocks into specific conformations that mimic the product, so that the entropy loss of the formation of the latter is thus suppressed. In water, which often leads to imine hydrolysis, we developed two strategies to enhance the water-compatibility. By taking advantage of multivalency, namely, multiple bonds are often more robust than a single bond, self-assembly via condensation of imine was performed successfully in water, a solvent that is considered as forbidden zone of imine. Another approach is to replace typical imine with its more robust and water compatible derivatives, namely, either hydrazone or oxime, whose C═N bonds are generally less electrophilic compared to typical imine. With the water-compatible dynamic bonds in hand, a variety topological nontrivial molecules such as catenanes and knots was self-assembled successfully in aqueous media, driven by hydrophobic effect. When the self-assembled molecules in the form of rings and cages were designed for supramolecular purposes, water-compatibility endows a merit that allows the hosts to take advantage of hydrophobic effect to drive host-guest recognition, enabling various tasks to be accomplished, such as separation of guest isomers with similar physical properties, recognition of highly hydrated anions, as well as stabilization of guest dimers.
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Affiliation(s)
- Yixin Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Hua Tang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Hongliang Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 31125, China
| | - Hao Li
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 31125, China
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14
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Zhang G, Lin W, Huang F, Sessler J, Khashab NM. Industrial Separation Challenges: How Does Supramolecular Chemistry Help? J Am Chem Soc 2023; 145:19143-19163. [PMID: 37624708 DOI: 10.1021/jacs.3c06175] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023]
Abstract
The chemical industry and the chemical processes underscoring it are under intense scrutiny as the demands for the transition to more sustainable and environmentally friendly practices are increasing. Traditional industrial separation systems, such as thermally driven distillation for hydrocarbon purification, are energy intensive. The development of more energy efficient separation technologies is thus emerging as a critical need, as is the creation of new materials that may permit a transition away from classic distillation-based separations. In this Perspective, we focus on porous organic cages and macrocycles that can adsorb guest molecules selectively through various host-guest interactions and permit molecular sieving behavior at the molecular level. Specifically, we summarize the recent advances where receptor-based adsorbent materials have been shown to be effective for industrially relevant hydrocarbon separations, highlighting the underlying host-guest interactions that impart selectivity and permit the observed separations. This approach to sustainable separations is currently in its infancy. Nevertheless, several receptor-based adsorbent materials with extrinsic/intrinsic voids or special functional groups have been reported in recent years that can selectively capture various targeted guest molecules. We believe that the understanding of the interactions that drive selectivity at a molecular level accruing from these initial systems will permit an ever-more-effective "bottom-up" design of tailored molecular sieves that, in due course, will allow adsorbent material-based approaches to separations to transition from the laboratory into an industrial setting.
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Affiliation(s)
- Gengwu Zhang
- Smart Hybrid Materials Laboratory (SHMs), Chemistry Program, Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Weibin Lin
- Smart Hybrid Materials Laboratory (SHMs), Chemistry Program, Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Feihe Huang
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, P. R. China
| | - Jonathan Sessler
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Niveen M Khashab
- Smart Hybrid Materials Laboratory (SHMs), Chemistry Program, Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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15
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Zhu L, Yang X, Sun JK. Cooperative cage hybrids enabled by electrostatic marriage. Chem Commun (Camb) 2023; 59:6020-6023. [PMID: 37186246 DOI: 10.1039/d3cc00779k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
A cage hybrid (C-Cage-PB) was developed by electrostatic complexation of a quaternary ammonium cage (C-Cage+) and an anionic inorganic Prussian blue (PB-). Given the unique synergy of the two parts, such a cage hybrid can be used as a promising platform for the efficient removal of toxic compounds in wastewater through adsorption, delivery or catalytic degradation via a Fenton oxidation reaction. In addition, C-Cage-PB can encapsulate Pd clusters, which amplifies the function of the hybrid for enhanced catalytic performance in the sequential degradation of toxic organic compounds and heavy metal pollution in wastewater treatment.
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Affiliation(s)
- Liying Zhu
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, P. R. China.
| | - Xinchun Yang
- Faculty of Materials Science and Energy Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen, 518055, P. R. China.
| | - Jian-Ke Sun
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, P. R. China.
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16
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Abstract
Porous organic cages (POCs) are a relatively new class of low-density crystalline materials that have emerged as a versatile platform for investigating molecular recognition, gas storage and separation, and proton conduction, with potential applications in the fields of porous liquids, highly permeable membranes, heterogeneous catalysis, and microreactors. In common with highly extended porous structures, such as metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and porous organic polymers (POPs), POCs possess all of the advantages of highly specific surface areas, porosities, open pore channels, and tunable structures. In addition, they have discrete molecular structures and exhibit good to excellent solubilities in common solvents, enabling their solution dispersibility and processability─properties that are not readily available in the case of the well-established, insoluble, extended porous frameworks. Here, we present a critical review summarizing in detail recent progress and breakthroughs─especially during the past five years─of all the POCs while taking a close look at their strategic design, precise synthesis, including both irreversible bond-forming chemistry and dynamic covalent chemistry, advanced characterization, and diverse applications. We highlight representative POC examples in an attempt to gain some understanding of their structure-function relationships. We also discuss future challenges and opportunities in the design, synthesis, characterization, and application of POCs. We anticipate that this review will be useful to researchers working in this field when it comes to designing and developing new POCs with desired functions.
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Affiliation(s)
- Xinchun Yang
- Faculty of Materials Science and Energy Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
- Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
| | - Zakir Ullah
- Convergence Research Center for Insect Vectors, Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, South Korea
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
| | - Cafer T Yavuz
- Oxide & Organic Nanomaterials for Energy & Environment Laboratory, Physical Science & Engineering (PSE), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal 23955, Saudi Arabia
- Advanced Membranes & Porous Materials Center, PSE, KAUST, 4700 KAUST, Thuwal 23955, Saudi Arabia
- KAUST Catalysis Center, PSE, KAUST, 4700 KAUST, Thuwal 23955, Saudi Arabia
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17
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Halliwell C, Soria JF, Fernandez A. Beyond Microporosity in Porous Organic Molecular Materials (POMMs). Angew Chem Int Ed Engl 2023; 62:e202217729. [PMID: 36637113 DOI: 10.1002/anie.202217729] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/14/2023]
Abstract
Porous organic molecular materials (POMMs) are a novel class of porous materials that cover a wide range of organic-based molecular building blocks connected through weak supramolecular interactions, such as hydrogen bonds, π-π stacking, van der Waals and electrostatic interactions. Despite of their diverse chemical and structural nature, common features to POMMs include solution processability, crystallinity and microporosity. Herein, we focus, for the first time, on the advance of the field of POMMs beyond the archetypical microporosity. In particular, we highlight relevant examples of meso- and macroporous POMMs, as well as hierchachical ones (micro-/meso-, micro-/macro- and meso-/macroporous). We also remark some of their unique properties, and how they can be key in many applications.
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Affiliation(s)
- Chris Halliwell
- Chemistry Department, School of Science, Loughborough University, Loughborough, LE11 3TU, UK
| | - Jesus Ferrando Soria
- Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980, Paterna, València, Spain
| | - Antonio Fernandez
- Chemistry Department, School of Science, Loughborough University, Loughborough, LE11 3TU, UK
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18
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Wagner P, Rominger F, Gross JH, Mastalerz M. Solvent-Controlled Quadruple Catenation of Giant Chiral [8+12] Salicylimine Cubes Driven by Weak Hydrogen Bonding. Angew Chem Int Ed Engl 2023; 62:e202217251. [PMID: 36695113 DOI: 10.1002/anie.202217251] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 01/26/2023]
Abstract
Mechanically interlocked structures are fascinating synthetic targets and the topological complexity achieved through catenation offers numerous possibilities for the construction of new molecules with exciting properties. In the structural space of catenated organic cage molecules, only few examples have been realized so far, and control over the catenation process in solution is still barely achieved. Herein, we describe the formation of a quadruply interlocked catenane of giant chiral [8+12] salicylimine cubes. The formation could be controlled by the choice of solvent used in the reaction. The interlocked structure was unambiguously characterized by single crystal X-ray diffraction and weak hydrogen bonding was identified as a central driving force for the catenation. Furthermore, scrambling experiments using partially deuterated cages were performed, revealing that the catenane formation occurs through mechanical interlocking of preformed single cages.
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Affiliation(s)
- Philippe Wagner
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Jürgen H Gross
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
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19
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Benke BP, Kirschbaum T, Graf J, Gross JH, Mastalerz M. Dimeric and trimeric catenation of giant chiral [8 + 12] imine cubes driven by weak supramolecular interactions. Nat Chem 2023; 15:413-423. [PMID: 36456691 PMCID: PMC9986109 DOI: 10.1038/s41557-022-01094-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 10/18/2022] [Indexed: 12/05/2022]
Abstract
Mechanically interlocked structures, such as catenanes and rotaxanes, are fascinating synthetic targets and some are used for molecular switches and machines. Today, the vast majority of catenated structures are built upon macrocycles and only a very few examples of three-dimensional shape-persistent organic cages forming such structures have been reported. However, the catenation in all these cases was based on a thermodynamically favoured π-π-stacking under certain reaction conditions. Here, we show that catenane formation can be induced by adding methoxy or thiomethyl groups to one of the precursors during the synthesis of chiral [8 + 12] imine cubes, giving dimeric and trimeric catenated organic cages. To elucidate the underlying driving forces, we reacted 11 differently 1,4-disubstituted terephthaldehydes with a chiral triamino tribenzotriquinacene under various conditions to study whether monomeric cages or catenated cage dimers are the preferred products. We find that catenation is mainly directed by weak interactions derived from the substituents rather than by π-stacking.
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Affiliation(s)
- Bahiru Punja Benke
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Tobias Kirschbaum
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Jürgen Graf
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Jürgen H Gross
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
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20
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Rondelli M, Daranas AH, Martín T. Importance of Precursor Adaptability in the Assembly of Molecular Organic Cages. J Org Chem 2023; 88:2113-2121. [PMID: 36730713 PMCID: PMC9942191 DOI: 10.1021/acs.joc.2c02523] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
For molecular architectures based on dynamic covalent chemistry (DCvC), strict preorganization is a paradigmatic concept and the generally accepted strategy for their rational design. This results in the creation of highly rigid building blocks which are expected to fulfill the ideal geometry of the assembly, coming at a price that small geometric mismatches result in unpredicted and/or unproductive reaction outcomes. In this study, we show that feet of a tripodal platform have a great influence on the assembly of tetrahedral organic cages based on boronate ester formation. The aryl benzyl ether-functionalized building blocks perform significantly better than their alkyl-functionalized equivalents. Experimentally and using density functional theory geometry optimization of the cage structures, we prove that unexpectedly, this is not due to solubility but because of the enhanced capability of the aryl benzyl ether-functionalized building blocks to fit the ideal geometry of the assembly. This introduces the concept of building block adaptability to overcome geometrical mismatches in DCvC systems.
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Affiliation(s)
- Manuel Rondelli
- Instituto
de Productos Naturales y Agrobiología, Consejo Superior de
Investigaciones Científicas (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez,
3, 38206 La Laguna, Tenerife, Spain,Doctoral
and Postgraduate School, University of La
Laguna, Avda. Astrofísico
Francisco Sánchez, 38203 La Laguna, Tenerife, Spain
| | - Antonio H. Daranas
- Instituto
de Productos Naturales y Agrobiología, Consejo Superior de
Investigaciones Científicas (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez,
3, 38206 La Laguna, Tenerife, Spain,Instituto
Universitario de Bio-Orgánica “Antonio González”, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez,
2, 38206 La Laguna, Tenerife, Spain,
| | - Tomás Martín
- Instituto
de Productos Naturales y Agrobiología, Consejo Superior de
Investigaciones Científicas (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez,
3, 38206 La Laguna, Tenerife, Spain,Instituto
Universitario de Bio-Orgánica “Antonio González”, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez,
2, 38206 La Laguna, Tenerife, Spain,
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21
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Anipa V, Tarzia A, Jelfs KE, Alexandrov EV, Addicoat MA. Pore topology analysis in porous molecular systems. ROYAL SOCIETY OPEN SCIENCE 2023; 10:220813. [PMID: 36778946 PMCID: PMC9905991 DOI: 10.1098/rsos.220813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 12/05/2022] [Indexed: 06/18/2023]
Abstract
Porous molecular materials are constructed from molecules that assemble in the solid-state such that there are cavities or an interconnected pore network. It is challenging to control the assembly of these systems, as the interactions between the molecules are generally weak, and subtle changes in the molecular structure can lead to vastly different intermolecular interactions and subsequently different crystal packing arrangements. Similarly, the use of different solvents for crystallization, or the introduction of solvent vapour, can result in different polymorphs and pore networks being formed. It is difficult to uniquely describe the pore networks formed, and thus we analyse 1033 crystal structures of porous molecular systems to determine the underlying topology of their void spaces and potential guest diffusion networks. Material-agnostic topology definitions are applied. We use the underlying topological nets to examine whether it is possible to apply isoreticular design principles to porous molecular materials. Overall, our automatic analysis of a large dataset gives a general insight into the relationships between molecular topologies and the topological nets of their pore network. We show that while porous molecular systems tend to pack similarly to non-porous molecules, the topologies of their pore distributions resemble those of more prominent porous materials, such as metal-organic frameworks and covalent organic frameworks.
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Affiliation(s)
- Verity Anipa
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Andrew Tarzia
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London W12 0BZ, UK
| | - Kim E. Jelfs
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London W12 0BZ, UK
| | - Eugeny V. Alexandrov
- Samara Center for Theoretical Materials Science (SCTMS), Samara University, Ac. Pavlov Street 1, Samara 443011, Russia
- Samara Center for Theoretical Materials Science (SCTMS), Samara State Technical University, Molodogvardeyskaya Street 244, Samara 443100, Russia
- Laboratory of Coherent Optics, Samara Branch of P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Novo-Sadovaya Street 221, Samara 443011, Russia
- Institute of Experimental Medicine and Biotechnology, Samara State Medical University, Chapayevskaya Street 89, Samara 443099, Russia
| | - Matthew A. Addicoat
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
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22
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Self-Assembly of a Purely Organic Bowl in Water via Acylhydrazone Formation. Molecules 2023; 28:molecules28030976. [PMID: 36770651 PMCID: PMC9921396 DOI: 10.3390/molecules28030976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/05/2023] [Accepted: 01/11/2023] [Indexed: 01/21/2023] Open
Abstract
A bowl-shaped molecule can be self-assembled by condensing a triscationic hexaaldehyde compound and three equiv. of a dihydrazide linkers in pure water. The molecular bowl is thus composed of a triscationic π-electron deficient platform, as well as a hexagonal rim that contains six acylhydrazone functions. When the counteranions are chloride, the solid-state structure reveals that this molecular bowl undergoes dimerization via N-H···Cl hydrogen bonds, forming a cage-like dimer with a huge inner cavity. This molecular bowl can employ its cavity to accommodate a hydrophobic guest, namely 1-adamantanecarboxylic acid in aqueous media.
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23
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Chen J, Ma Z, Li Y, Cao S, Zhuang Q. Research Progress in Metal-Porous Organic Cage Nanocomposites. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202207020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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24
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Zhu D, Sun B, Tong L, Wu Y, Cetin MM, Li H. A π-Electron Rich Cage via the Friedel–Crafts Reaction. Org Lett 2022; 24:8980-8985. [DOI: 10.1021/acs.orglett.2c03560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Dingsheng Zhu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Bin Sun
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 31200, P. R. China
| | - Lu Tong
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yating Wu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - M. Mustafa Cetin
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali Campus, Fatih, Istanbul 34083, Turkey
| | - Hao Li
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 31200, P. R. China
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25
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Yang X, Li C, Giorgi M, Siri D, Bugaut X, Chatelet B, Gigmes D, Yemloul M, Hornebecq V, Kermagoret A, Brasselet S, Martinez A, Bardelang D. Energy‐Efficient Iodine Uptake by a Molecular Host⋅Guest Crystal. Angew Chem Int Ed Engl 2022; 61:e202214039. [PMID: 36198650 PMCID: PMC10092189 DOI: 10.1002/anie.202214039] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Indexed: 11/07/2022]
Abstract
Recently, porous organic crystals (POC) based on macrocycles have shown exceptional sorption and separation properties. Yet, the impact of guest presence inside a macrocycle prior to adsorption has not been studied. Here we show that the inclusion of trimethoxybenzyl-azaphosphatrane in the macrocycle cucurbit[8]uril (CB[8]) affords molecular porous host⋅guest crystals (PHGC-1) with radically new properties. Unactivated hydrated PHGC-1 adsorbed iodine spontaneously and selectively at room temperature and atmospheric pressure. The absence of (i) heat for material synthesis, (ii) moisture sensitivity, and (iii) energy-intensive steps for pore activation are attractive attributes for decreasing the energy costs. 1 H NMR and DOSY were instrumental for monitoring the H2 O/I2 exchange. PHGC-1 crystals are non-centrosymmetric and I2 -doped crystals showed markedly different second harmonic generation (SHG), which suggests that iodine doping could be used to modulate the non-linear optical properties of porous organic crystals.
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Affiliation(s)
- Xue Yang
- Aix Marseille Univ CNRS ICR AMUTech Marseille France
| | - Chunyang Li
- School of Materials Science and Engineering & Material Corrosion and Protection Key Laboratory of Sichuan Province Sichuan University of Science & Engineering Zigong 643000 P. R. China
- Aix Marseille Univ CNRS Centrale Marseille iSm2 AMUTech Marseille France
| | - Michel Giorgi
- Aix Marseille Univ CNRS, Centrale Marseille, FSCM Spectropole Marseille France
| | - Didier Siri
- Aix Marseille Univ CNRS ICR AMUTech Marseille France
| | - Xavier Bugaut
- Université de Strasbourg Université de Haute-Alsace CNRS LIMA UMR 7042 67000 Strasbourg France
| | - Bastien Chatelet
- Aix Marseille Univ CNRS Centrale Marseille iSm2 AMUTech Marseille France
| | - Didier Gigmes
- Aix Marseille Univ CNRS ICR AMUTech Marseille France
| | - Mehdi Yemloul
- Aix Marseille Univ CNRS Centrale Marseille iSm2 AMUTech Marseille France
| | | | | | | | - Alexandre Martinez
- Aix Marseille Univ CNRS Centrale Marseille iSm2 AMUTech Marseille France
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26
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Thomas CM, Liang W, Preston D, Doonan CJ, White NG. Post‐Synthetic Modification of a Porous Hydrocarbon Cage to Give a Discrete Co
24
Organometallic Complex**. Chemistry 2022; 28:e202200958. [PMID: 35863888 PMCID: PMC9544953 DOI: 10.1002/chem.202200958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Indexed: 11/11/2022]
Abstract
A new alkyne‐based hydrocarbon cage was synthesized in high overall yield using alkyne‐alkyne coupling in the cage forming step. The cage is porous and displays a moderately high BET surface area (546 m2 g−1). The cage loses crystallinity on activation and thus is porous in its amorphous form, while very similar cages have been either non‐porous, or retained crystallinity on activation. Reaction of the cage with Co2(CO)8 results in exhaustive metalation of its 12 alkyne groups to give the Co24(CO)72 adduct of the cage in good yield.
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Affiliation(s)
- Chriso M. Thomas
- Research School of ChemistryThe Australian National UniversityCanberraACTAustralia
| | - Weibin Liang
- Department of Chemistry and Centre for Advanced MaterialsThe University of AdelaideSAAustralia
| | - Dan Preston
- Research School of ChemistryThe Australian National UniversityCanberraACTAustralia
| | - Christian J. Doonan
- Department of Chemistry and Centre for Advanced MaterialsThe University of AdelaideSAAustralia
| | - Nicholas G. White
- Research School of ChemistryThe Australian National UniversityCanberraACTAustralia
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27
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Lauer JC, Bhat AS, Barwig C, Fritz N, Kirschbaum T, Rominger F, Mastalerz M. [2+3] Amide Cages by Oxidation of [2+3] Imine Cages – Revisiting Molecular Hosts for Highly Efficient Nitrate Binding. Chemistry 2022; 28:e202201527. [PMID: 35699158 PMCID: PMC9544679 DOI: 10.1002/chem.202201527] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Indexed: 11/16/2022]
Abstract
The pollution of groundwater with nitrate is a serious issue because nitrate can cause several diseases such as methemoglobinemia or cancer. Therefore, selective removal of nitrate by efficient binding to supramolecular hosts is highly desired. Here we describe how to make [2+3] amide cages in very high to quantitative yields by applying an optimized Pinnick oxidation protocol for the conversion of corresponding imine cages. By NMR titration experiments of the eight different [2+3] amide cages with nitrate, chloride and hydrogen sulfate we identified one cage with an unprecedented high selectivity towards nitrate binding vs. chloride (S=705) or hydrogensulfate (S>13500) in CD2Cl2/CD3CN (1 : 3). NMR experiments as well as single‐crystal structure comparison of host‐guest complexes give insight into structure‐property‐relationships.
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Affiliation(s)
- Jochen C. Lauer
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Avinash S. Bhat
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Chantal Barwig
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Nathalie Fritz
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Tobias Kirschbaum
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
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28
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Montà-González G, Sancenón F, Martínez-Máñez R, Martí-Centelles V. Purely Covalent Molecular Cages and Containers for Guest Encapsulation. Chem Rev 2022; 122:13636-13708. [PMID: 35867555 PMCID: PMC9413269 DOI: 10.1021/acs.chemrev.2c00198] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Cage compounds offer unique binding pockets similar to enzyme-binding sites, which can be customized in terms of size, shape, and functional groups to point toward the cavity and many other parameters. Different synthetic strategies have been developed to create a toolkit of methods that allow preparing tailor-made organic cages for a number of distinct applications, such as gas separation, molecular recognition, molecular encapsulation, hosts for catalysis, etc. These examples show the versatility and high selectivity that can be achieved using cages, which is impossible by employing other molecular systems. This review explores the progress made in the field of fully organic molecular cages and containers by focusing on the properties of the cavity and their application to encapsulate guests.
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Affiliation(s)
- Giovanni Montà-González
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM) Universitat
Politècnica de València, Universitat de València. Camino de Vera, s/n 46022, Valencia, Spain
| | - Félix Sancenón
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM) Universitat
Politècnica de València, Universitat de València. Camino de Vera, s/n 46022, Valencia, Spain,CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain,Centro
de Investigación Príncipe Felipe, Unidad Mixta UPV-CIPF
de Investigación de Mecanismos de Enfermedades y Nanomedicina,
Valencia, Universitat Politècnica
de València, 46012 Valencia, Spain,Instituto
de Investigación Sanitaria la Fe, Unidad Mixta de Investigación
en Nanomedicina y Sensores, Universitat
Politènica de València, 46026 València, Spain,Departamento
de Química, Universitat Politècnica
de València, 46022 Valencia, Spain
| | - Ramón Martínez-Máñez
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM) Universitat
Politècnica de València, Universitat de València. Camino de Vera, s/n 46022, Valencia, Spain,CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain,Centro
de Investigación Príncipe Felipe, Unidad Mixta UPV-CIPF
de Investigación de Mecanismos de Enfermedades y Nanomedicina,
Valencia, Universitat Politècnica
de València, 46012 Valencia, Spain,Instituto
de Investigación Sanitaria la Fe, Unidad Mixta de Investigación
en Nanomedicina y Sensores, Universitat
Politènica de València, 46026 València, Spain,Departamento
de Química, Universitat Politècnica
de València, 46022 Valencia, Spain,R.M.-M.: email,
| | - Vicente Martí-Centelles
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM) Universitat
Politècnica de València, Universitat de València. Camino de Vera, s/n 46022, Valencia, Spain,V.M.-C.:
email,
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29
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Borne I, Simon N, Jones CW, Lively RP. Design of Gas Separation Processes Using Type II Porous Liquids as Physical Solvents. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Isaiah Borne
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Natalie Simon
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Christopher W. Jones
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Ryan P. Lively
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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30
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Rivera MP, Lively RP. Analysis of gas transport in molecularly-mixed composite membranes. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Khan N, Itaya K, Wirth T. Chiral Iodotriptycenes: Synthesis and Catalytic Applications. Chemistry 2022; 11:e202200145. [PMID: 35822927 PMCID: PMC9278095 DOI: 10.1002/open.202200145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 06/27/2022] [Indexed: 02/05/2023]
Abstract
New iodotriptycenes, including some chiral derivatives, have been synthesised, and their catalytic potential towards oxidative transformations has been investigated. The enantioselectivities observed in the products using chiral iodotriptycene catalysts are low, probably owing to the large distances between the coordinating groups and the iodine moieties in these compounds.
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Affiliation(s)
- Nasim Khan
- School of Chemistry, Cardiff University, Park Place, Main Building, CF10 3AT, Cardiff, UK
| | - Katsunori Itaya
- School of Chemistry, Cardiff University, Park Place, Main Building, CF10 3AT, Cardiff, UK
| | - Thomas Wirth
- School of Chemistry, Cardiff University, Park Place, Main Building, CF10 3AT, Cardiff, UK
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32
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Guchhait T, Roy S, Jena P. Mannich Reaction: An Alternative Synthetic Approach for Various Pyrrole‐Based Anion Receptors and Chelating Ligands. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200578] [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)
- Tapas Guchhait
- C V Raman Global University Chemistry Mahura, Janla 752054 Bhubaneswar INDIA
| | - Satabdi Roy
- St Mary's College Department of Sciences INDIA
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33
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Badjic JD, Liyana Gunawardana VW, Finnegan TJ, Ward CE, Moore CE. Dissipative Formation of Covalent Basket Cages. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207418] [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)
- Jovica D Badjic
- Ohio State University Department of Chemistry 100 W. 18th Avenue 43210 Columbus UNITED STATES
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34
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Liyana Gunawardana VW, Finnegan TJ, Ward CE, Moore CE, Badjić JD. Dissipative Formation of Covalent Basket Cages. Angew Chem Int Ed Engl 2022; 61:e202207418. [PMID: 35723284 PMCID: PMC9544755 DOI: 10.1002/anie.202207418] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 11/23/2022]
Abstract
Living systems use chemical fuels to transiently assemble functional structures. As a step toward constructing abiotic mimics of such structures, we herein describe dissipative formation of covalent basket cage CBC 5 by reversible imine condensation of cup‐shaped aldehyde 2 (i.e., basket) with trivalent aromatic amine 4. This nanosized [4+4] cage (V=5 nm3, Mw=6150 Da) has shape of a truncated tetrahedron with four baskets at its vertices and four aromatic amines forming the faces. Importantly, tris‐aldehyde basket 2 and aliphatic tris‐amine 7 undergo condensation to give small [1+1] cage 6. The imine metathesis of 6 and aromatic tris‐amine 4 into CBC 5 was optimized to bias the equilibrium favouring 6. Addition of tribromoacetic acid (TBA) as a chemical fuel perturbs this equilibrium to result in the transient formation of CBC 5, with subsequent consumption of TBA via decarboxylation driving the system back to the starting state.
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Affiliation(s)
| | - Tyler J Finnegan
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
| | - Carson E Ward
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
| | - Curtis E Moore
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
| | - Jovica D Badjić
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
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35
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Saha R, Mondal B, Mukherjee PS. Molecular Cavity for Catalysis and Formation of Metal Nanoparticles for Use in Catalysis. Chem Rev 2022; 122:12244-12307. [PMID: 35438968 DOI: 10.1021/acs.chemrev.1c00811] [Citation(s) in RCA: 73] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The employment of weak intermolecular interactions in supramolecular chemistry offers an alternative approach to project artificial chemical environments like the active sites of enzymes. Discrete molecular architectures with defined shapes and geometries have become a revolutionary field of research in recent years because of their intrinsic porosity and ease of synthesis using dynamic non-covalent/covalent interactions. Several porous molecular cages have been constructed from simple building blocks by self-assembly, which undergoes many self-correction processes to form the final architecture. These supramolecular systems have been developed to demonstrate numerous applications, such as guest stabilization, drug delivery, catalysis, smart materials, and many other related fields. In this respect, catalysis in confined nanospaces using such supramolecular cages has seen significant growth over the years. These porous discrete cages contain suitable apertures for easy intake of substrates and smooth release of products to exhibit exceptional catalytic efficacy. This review highlights recent advancements in catalytic activity influenced by the nanocavities of hydrogen-bonded cages, metal-ligand coordination cages, and dynamic or reversible covalently bonded organic cages in different solvent media. Synthetic strategies for these three types of supramolecular systems are discussed briefly and follow similar and simplistic approaches manifested by simple starting materials and benign conditions. These examples demonstrate the progress of various functionalized molecular cages for specific chemical transformations in aqueous and nonaqueous media. Finally, we discuss the enduring challenges related to porous cage compounds that need to be overcome for further developments in this field of work.
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Affiliation(s)
- Rupak Saha
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560 012, India
| | - Bijnaneswar Mondal
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur-495 009, Chhattisgarh, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560 012, India
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36
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Xu M, Yang F. Transition Metal Nanoparticles‐Catalyzed Organic Reactions within Porous Organic Cages. ChemCatChem 2022. [DOI: 10.1002/cctc.202200183] [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)
- Miao Xu
- Beijing Institute of Technology Advanced Research Institute of Multidisciplinary Sciences 100081 Beijing CHINA
| | - Fanzhi Yang
- Beijing Institute of Technology Advanced Research Institute for Multidisciplinary Science 5 South Zhongguancun Street, Haidian District 100081 Beijing CHINA
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37
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Wan X, Li S, Tian Y, Xu J, Shen LC, Zuilhof H, Zhang M, Sue ACH. Twisted pentagonal prisms: AgnL2 metal-organic pillars. Chem 2022. [DOI: 10.1016/j.chempr.2022.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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38
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Dong J, Pan Y, Yang K, Yuan YD, Wee V, Xu S, Wang Y, Jiang J, Liu B, Zhao D. Enhanced Biological Imaging via Aggregation-Induced Emission Active Porous Organic Cages. ACS NANO 2022; 16:2355-2368. [PMID: 35084185 DOI: 10.1021/acsnano.1c08605] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Porous organic cages (POCs) have many advantages, including superior microenvironments, good monodispersity, and shape homogeneity, excellent molecular solubility, high chemical stability, and intriguing host-guest chemistry. These properties enable POCs to overcome the limitations of extended porous networks such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs). However, the applications of POCs in bioimaging remain limited due to the problems associated with their rigid and hydrophobic structures, thus leading to strong aggregation-caused quenching (ACQ) in aqueous biological media. To address this challenge, we report the preparation of aggregation-induced emission (AIE)-active POCs capable of stimuli responsiveness for enhanced bioimaging. We rationally design a hydrophilic, structurally flexible tetraphenylethylene (TPE)-based POC that is almost entirely soluble in aqueous solutions. This POC's conformationally flexible superstructure allows the dynamic rotation of the TPE-based phenyl rings, thus endowing impressive AIE characteristics for responses to environmental changes such as temperature and viscosity. We employ these notable features in the bioimaging of living cells and obtain good performance, demonstrating that the present AIE-active POCs are suitable candidates for further biological applications.
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Affiliation(s)
- Jinqiao Dong
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yutong Pan
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Kuiwei Yang
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Yi Di Yuan
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Vanessa Wee
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Shidang Xu
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Yuxiang Wang
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Jianwen Jiang
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Bin Liu
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Dan Zhao
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 117585, Singapore
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39
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40
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41
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Chen Q, Lei Y, Wu G, Li Q, Pan Y, Li H. Ultramacrocyclization in water via external templation. Chem Sci 2022; 13:798-803. [PMID: 35173945 PMCID: PMC8768864 DOI: 10.1039/d1sc06236k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/19/2021] [Indexed: 12/04/2022] Open
Abstract
Condensing a dihydrazide and each of a series of cationic bisaldehyde compounds bearing polymethylene chains in weakly acidic water produces either a macrocycle in a [1 + 1] manner or its dimer namely a [2]catenane, or their mixture. The product distribution is determined by the length of the bisaldehydes. Addition of cucurbit[8]uril (CB[8]) drives the catenane/macrocycle equilibria to the side of macrocycles, by forming ring-in-ring complexes with the latter. When the polymethylene unit of the bisaldehyde is replaced with a more rigid p-xylene linker, its self-assembly with the dihydrazide leads to quantitative formation of a [2]catenane. Upon addition of CB[8], the [2]catenane is transformed into an ultra-large macrocycle condensed in a [2 + 2] manner, which is encircled by two CB[8] rings. The framework of this macrocycle contains one hundred and two atoms, whose synthesis would be a formidable task without the external template CB[8]. Removal of CB[8] with a competitive guest leads to recovery of the [2]catenane.
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Affiliation(s)
- Qiong Chen
- Department of Chemistry Institution, Zhejiang University Hangzhou 310027 China
| | - Ye Lei
- Department of Chemistry Institution, Zhejiang University Hangzhou 310027 China
| | - Guangcheng Wu
- Department of Chemistry Institution, Zhejiang University Hangzhou 310027 China
| | - Qing Li
- Key Laboratory of Macrocyclic and Supramolecular Chemistry, Guizhou University Guiyang 550025 China
| | - Yuanjiang Pan
- Department of Chemistry Institution, Zhejiang University Hangzhou 310027 China
| | - Hao Li
- Department of Chemistry Institution, Zhejiang University Hangzhou 310027 China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 310027 China
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42
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Yang W, Sun N, Wang X, Yu B, Wang H. Racemic Porous Organic Cage Crystal with Selective Gas Adsorption Behaviors. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202100357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wei Yang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry University of Science and Technology Beijing Beijing 100083 China
| | - Nana Sun
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry University of Science and Technology Beijing Beijing 100083 China
| | - Xinxin Wang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry University of Science and Technology Beijing Beijing 100083 China
| | - Baoqiu Yu
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry University of Science and Technology Beijing Beijing 100083 China
| | - Hailong Wang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry University of Science and Technology Beijing Beijing 100083 China
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43
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Special Issue of Covalent Organic Frameworks(COFs): Dimeric Calix[4]resorcinarene-based Porous Organic Cages for CO2/CH4 Separation. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-1454-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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44
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Sun N, Wang C, Yu B, Wang H, Barbour LJ, Jiang J. Stimuli-Responsive Porous Molecular Crystal with Reversible Modulation of Porosity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:1519-1525. [PMID: 34962764 DOI: 10.1021/acsami.1c18368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Responsive materials have received much attention due to modulated properties under stimuli such as light, heat, and electricity. A photoresponsive porous molecular crystal (1) has been assembled from a racemic dithienylethene-cage (L) by multiple C-F···H-C hydrogen bonds and van der Waals forces according to crystallographic investigation. Electronic absorption spectroscopy reveals reversible photochromic behaviors of the solution and film forms of enantiomeric L upon UV and visible light irradiation due to photoisomerization of dithienylethene units. X-ray photoelectron spectroscopy (XPS), in combination with NMR, discloses the quantitative photoisomerization of photochromic dithienylethene moieties. Moreover, the porosity of 1 is modulated by UV irradiation based on gas sorption data. Interestingly, heating the irradiated sample of 1 in 1,4-dioxane leads to recovered porosity due to the recovered cage molecular structure and maintained periodic frameworks.
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Affiliation(s)
- Nana Sun
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Chiming Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Baoqiu Yu
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Hailong Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Leonard J Barbour
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, Matieland, Stellenbosch 7600, South Africa
| | - Jianzhuang Jiang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
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45
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Yang P, He L, Wang Y. Ultrastable Anion Catechol Frameworks (ACFs) of Pentiptycene‐based Quad(catechol) Through Decavalent Hydrogen Bond. ChemistrySelect 2022. [DOI: 10.1002/slct.202103985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pan Yang
- Instrumental Analysis Center Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 PR China
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 PR China
| | - Lin He
- Instrumental Analysis Center Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 PR China
| | - Youfu Wang
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 PR China
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46
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Woźny M, Mames A, Ratajczyk T. Triptycene Derivatives: From Their Synthesis to Their Unique Properties. Molecules 2021; 27:250. [PMID: 35011478 PMCID: PMC8746337 DOI: 10.3390/molecules27010250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/27/2021] [Accepted: 12/28/2021] [Indexed: 11/17/2022] Open
Abstract
Since the first preparation of triptycene, great progress has been made with respect to its synthesis and the understanding of its properties. Interest in triptycene-based systems is intense; in recent years, advances in the synthetic methodology and properties of new triptycenes have been reported by researchers from various fields of science. Here, an account of these new developments is given and placed in reference to earlier pivotal works that underpin the field. First, we discuss new approaches to the synthesis of new triptycenes. Progress in the regioselective synthesis of sterically demanding systems is discussed. The application of triptycenes in catalysis is also presented. Next, progress in the understanding of the relations between triptycene structures and their properties is discussed. The unique properties of triptycenes in the liquid and solid states are elaborated. Unique interactions, which involve triptycene molecular scaffolds, are presented. Molecular interactions within a triptycene unit, as well as between triptycenes or triptycenes and other molecules, are also evaluated. In particular, the summary of the synthesis and useful features will be helpful to researchers who are using triptycenes as building blocks in the chemical and materials sciences.
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Affiliation(s)
- Mateusz Woźny
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Adam Mames
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Tomasz Ratajczyk
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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47
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Kunde T, Pausch T, Schmidt BM. Porous Organic Compounds – Small Pores on the Rise. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Tom Kunde
- Institut für Organische Chemie und Makromolekulare Chemie Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 40225 Düsseldorf Germany
| | - Tobias Pausch
- Institut für Organische Chemie und Makromolekulare Chemie Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 40225 Düsseldorf Germany
| | - Bernd M. Schmidt
- Institut für Organische Chemie und Makromolekulare Chemie Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 40225 Düsseldorf Germany
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48
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Yang M, Qiu F, M El-Sayed ES, Wang W, Du S, Su K, Yuan D. Water-stable hydrazone-linked porous organic cages. Chem Sci 2021; 12:13307-13315. [PMID: 34777749 PMCID: PMC8528071 DOI: 10.1039/d1sc04531h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/23/2021] [Indexed: 11/21/2022] Open
Abstract
Although porous organic cages (POCs), particularly imine-linked (C[double bond, length as m-dash]N) ones, have advanced significantly over the last few decades, the reversible nature of imine linkages makes them prone to hydrolysis and structural collapse, severely limiting their applications under moist or water conditions. Herein, seven water-stable hydrazone-linked (C[double bond, length as m-dash]N-N) POCs are prepared through a simple coupling of the same supramolecular tetraformylresorcin[4]arene cavitand with different dihydrazide linkers. Their structures are all determined by single-crystal X-ray crystallography, demonstrating rich structural diversity from the [2 + 4] lantern, [3 + 6] triangular prism, and unprecedented [4 + 8] square prism to the extra-large [6 + 12] octahedron. In addition, they respectively exhibit tunable window diameters and cavity volumes ranging from about 5.4 to 11.1 nm and 580 to 6800 Å3. Moreover, their application in the water environment for pollutant removal was explored, indicating that they can effectively eliminate various types of contaminants from water, including radionuclide waste, toxic heavy metal ions, and organic micropollutants. This work demonstrates a convenient method for rationally constructing versatile robust POCs and presents their great application potentialities in water medium.
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Affiliation(s)
- Miao Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 China .,College of Chemistry and Materials Science, Fujian Normal University Fuzhou 350007 China
| | - Fenglei Qiu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 China .,College of Chemistry, Fuzhou University Fuzhou 350116 China
| | - El-Sayed M El-Sayed
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 China .,University of the Chinese Academy of Sciences Beijing 100049 China.,Chemical Refining Laboratory, Refining Department, Egyptian Petroleum Research Institute Nasr City 11727 Egypt
| | - Wenjing Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 China .,University of the Chinese Academy of Sciences Beijing 100049 China
| | - Shunfu Du
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 China .,College of Chemistry, Fuzhou University Fuzhou 350116 China
| | - Kongzhao Su
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 China .,University of the Chinese Academy of Sciences Beijing 100049 China
| | - Daqiang Yuan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 China .,University of the Chinese Academy of Sciences Beijing 100049 China
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49
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Borne I, He D, DeWitt SJA, Liu M, Cooper AI, Jones CW, Lively RP. Polymeric Fiber Sorbents Embedded with Porous Organic Cages. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47118-47126. [PMID: 34570486 DOI: 10.1021/acsami.1c12002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The synthesis and functionalization of porous organic cages (POCs) for separation have attracted growing interest over the past decade. However, the potential of solid-phase POCs for practical, large-scale separations will require incorporation into appropriate gas-solid or liquid-solid contactors. Contactors with more effective mass transfer properties and lower pressure drops than pelletized systems are preferred. Here, we prepared and characterized fiber sorbents with POCs throughout a cellulose acetate (CA) polymer matrix, which were then deployed in model separations. The POC CC3 was shown to be stable after exposure to spinning solvents, as confirmed by NMR, powder X-ray diffraction, and gas sorption experiments. CC3-CA fibers were spun using the dry-jet wet-quench spinning method. Spun fibers retained the adsorptive properties of CC3 powders, as confirmed by CO2 and N2 physisorption and TGA, reaching upward of 60 wt % adsorbent loading, whereas the pelletized CC3 counterparts suffered significant losses in textural properties. The separation capabilities of the CC3-CA fibers are tested with both simulated postcombustion flue gas and with Xe/Kr mixtures. Fixed bed breakthrough experiments performed on fibers samples show that CC3 embedded in polymeric fibers can effectively perform these proof-of-concept gas separations. The development of fiber sorbents embedded with POCs provides an alternative to traditional pelletization for the incorporation of these materials into adsorptive separation systems.
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Affiliation(s)
- Isaiah Borne
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Donglin He
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Stephen J A DeWitt
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Ming Liu
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Andrew I Cooper
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Christopher W Jones
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Ryan P Lively
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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50
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Iwasawa N, Ono K. 3D-Boronic Ester Architectures: Synthesis, Host-Guest Chemistry, Dynamic Behavior, and Supramolecular Catalysis. CHEM REC 2021; 22:e202100214. [PMID: 34596949 DOI: 10.1002/tcr.202100214] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/11/2021] [Accepted: 09/13/2021] [Indexed: 11/09/2022]
Abstract
Boronic esters are known to be formed simply by mixing boronic acids and alcohols under neutral conditions, and the equilibrium is in favor of the boronic esters when 1,2- or 1,3-diols are employed as alcohols. By utilizing the dynamic nature of the boronic ester formation, our group successfully constructed unique boron-containing 3D structures, such as ring-shaped macrocycles, cages, and tubes, based on the boronic ester formation of various aromatic di-, tri-, or hexaboronic acids with an originally designed tetrol 1 containing two sets of fixed 1,2-diol units oriented on the same face of an indacene framework. Various functions of the obtained boronates were further pursued to disclose the characteristic features of this system. This personal account describes our self-assembled boronate system using tetrol 1 including synthesis, host-guest chemistry, kinetic connection, characteristic dynamic behaviors, and supramolecular catalysis.
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Affiliation(s)
- Nobuharu Iwasawa
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Kosuke Ono
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
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