1
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Huang YH, Lu YL, Cao ZM, Zhang XD, Liu CH, Xu HS, Su CY. Multipocket Cage Enables the Binding of High-Order Bulky and Drug Guests Uncovered by MS Methodology. J Am Chem Soc 2024; 146:21677-21688. [PMID: 39042557 DOI: 10.1021/jacs.4c05758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Achieving high guest loading and multiguest-binding capacity holds crucial significance for advancement in separation, catalysis, and drug delivery with synthetic receptors; however, it remains a challenging bottleneck in characterization of high-stoichiometry guest-binding events. Herein, we describe a large-sized coordination cage (MOC-70-Zn8Pd6) possessing 12 peripheral pockets capable of accommodating multiple guests and a high-resolution electrospray ionization mass spectrometry (HR-ESI-MS)-based method to understand the solution host-guest chemistry. A diverse range of bulky guests, varying from drug molecules to rigid fullerenes as well as flexible host molecules of crown ethers and calixarenes, could be loaded into open pockets with high capacities. Notably, these hollow cage pockets provide multisites to capture different guests, showing heteroguest coloading behavior to capture binary, ternary, or even quaternary guests. Moreover, a pair of commercially applied drugs for the combination therapy of chronic lymphocytic leukemia (CLL) has been tested, highlighting its potential in multidrug delivery for combined treatment.
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Affiliation(s)
- Yin-Hui Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yu-Lin Lu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zhong-Min Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiao-Dong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, Sun Yat-Sen University, Guangzhou 510275, China
| | - Chen-Hui Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hai-Sen Xu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, Sun Yat-Sen University, Guangzhou 510275, China
| | - Cheng-Yong Su
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, Sun Yat-Sen University, Guangzhou 510275, China
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2
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Li K, Li Z, Yuan J, Chen M, Zhao H, Jiang Z, Wang J, Jiang Z, Li Y, Chan YT, Wang P, Liu D. High-order layered self-assembled multicavity metal--organic capsules and anti-cooperative host-multi-guest chemistry. Chem Sci 2024; 15:8913-8921. [PMID: 38873050 PMCID: PMC11168090 DOI: 10.1039/d4sc01204f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/07/2024] [Indexed: 06/15/2024] Open
Abstract
The construction and application of metal-organic cages with accessible internal cavities have witnessed rapid development, however, the precise synthesis of complex metal-organic capsules with multiple cavities and achievement of multi-guest encapsulation, and further in-depth comprehension of host-multi-guest recognition remain a great challenge. Just like building LEGO blocks, herein, we have constructed a series of high-order layered metal-organic architectures of generation n (n = 1/2/3/4 is also the number of cavities) by multi-component coordination-driven self-assembly using porphyrin-containing tetrapodal ligands (like plates), multiple parallel-podal ligands (like clamps) and metal ions (like nodes). Importantly, these high-order assembled structures possessed different numbers of rigid and separate cavities formed by overlapped porphyrin planes with specific gaps. The host-guest experiments and convincing characterization proved that these capsules G2-G4 could serve as host structures to achieve multi-guest recognition and unprecedentedly encapsulate up to four C60 molecules. More interestingly, these capsules revealed negative cooperation behavior in the process of multi-guest recognition, which provides a new platform to further study complicated host-multi-guest interaction in the field of supramolecular chemistry.
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Affiliation(s)
- Kaixiu Li
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan-410083 China
| | - Zhengguang Li
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan-410083 China
| | - Jie Yuan
- School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - Mingzhao Chen
- Department Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University Guangzhou-510006 China
| | - He Zhao
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan-410083 China
| | - Zhiyuan Jiang
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan-410083 China
| | - Jun Wang
- Department Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University Guangzhou-510006 China
| | - Zhilong Jiang
- Department Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University Guangzhou-510006 China
| | - Yiming Li
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan-410083 China
| | - Yi-Tsu Chan
- Department of Chemistry, National Taiwan University Taipei 10617 Taiwan
| | - Pingshan Wang
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan-410083 China
- Department Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University Guangzhou-510006 China
| | - Die Liu
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan-410083 China
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3
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Liu H, Guo C, Li L, Zhang Z, Hou Y, Mu C, Hou GL, Zhang Z, Wang H, Li X, Zhang M. Multicomponent, Multicavity Metallacages That Contain Different Binding Sites for Allosteric Recognition. J Am Chem Soc 2024; 146:15787-15795. [PMID: 38738985 DOI: 10.1021/jacs.4c01873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
The encapsulation of different guest molecules by their different recognition domains of proteins leads to selective binding, catalysis, and transportation. Synthetic hosts capable of selectively binding different guests in their different cavities to mimic the function of proteins are highly desirable but challenging. Here, we report three ladder-shaped, triple-cavity metallacages prepared by multicomponent coordination-driven self-assembly. Interestingly, the porphyrin-based metallacage is capable of heteroleptic encapsulation of fullerenes (C60 or C70) and coronene using its different cavities, allowing distinct allosteric recognition of coronene upon the addition of C60 or C70. Owing to the different binding affinities of the cavities, the metallacage hosts one C60 molecule in the central cavity and two coronene units in the side cavities, while encapsulating two C70 molecules in the side cavities and one coronene molecule in the central cavity. The rational design of multicavity assemblies that enable heteroleptic encapsulation and allosteric recognition will guide the further design of advanced supramolecular constructs with tunable recognition properties.
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Affiliation(s)
- Haifei Liu
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Chenxing Guo
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518055, P. R. China
| | - Luqi Li
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Zeyuan Zhang
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yali Hou
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Chaoqun Mu
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Gao-Lei Hou
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Zhenyi Zhang
- Bruker (Beijing) Scientific Technology Co., Ltd., 9F, Building NO.1, Lane 2570, Hechuan Rd., Minhang District, Shanghai 201600, P. R. China
| | - Heng Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518055, P. R. China
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518055, P. R. China
| | - Mingming Zhang
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
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4
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Zeng QW, Hu L, Niu Y, Wang D, Kang Y, Jia H, Dou WT, Xu L. Metal-organic cages for gas adsorption and separation. Chem Commun (Camb) 2024; 60:3469-3483. [PMID: 38444260 DOI: 10.1039/d3cc05935a] [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
The unique high surface area and tunable cavity size endow metal-organic cages (MOCs) with superior performance and broad application in gas adsorption and separation. Over the past three decades, for instance, numerous MOCs have been widely explored in adsorbing diverse types of gas including energy gases, greenhouse gases, toxic gases, noble gases, etc. To gain a better understanding of the structure-performance relationships, great endeavors have been devoted to ligand design, metal node regulation, active metal site construction, cavity size adjustment, and function-oriented ligand modification, thus opening up routes toward rationally designed MOCs with enhanced capabilities. Focusing on the unveiled structure-performance relationships of MOCs towards target gas molecules, this review consists of two parts, gas adsorption and gas separation, which are discussed separately. Each part discusses the cage assembly process, gas adsorption strategies, host-guest chemistry, and adsorption properties. Finally, we briefly overviewed the challenges and future directions in the rational development of MOC-based sorbents for application in challenging gas adsorption and separation, including the development of high adsorption capacity MOCs oriented by adsorbability and the development of highly selective adsorption MOCs oriented by separation performance.
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Affiliation(s)
- Qing-Wen Zeng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China.
| | - Lianrui Hu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China.
| | - Yulian Niu
- Shanghai Jahwa United Co., Ltd, Shanghai 200082, P. R. China.
| | - Dehua Wang
- State Key Laboratory of Petroleum Molecular and Process engineering, SKLPMPE, Sinopec research institute of petroleum processing Co., LTD., Beijing 100083, China.
- East China Normal University, Shanghai 200062, P. R. China
| | - Yan Kang
- Shanghai Jahwa United Co., Ltd, Shanghai 200082, P. R. China.
| | - Haidong Jia
- Shanghai Jahwa United Co., Ltd, Shanghai 200082, P. R. China.
| | - Wei-Tao Dou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China.
| | - Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China.
- State Key Laboratory of Petroleum Molecular and Process engineering, SKLPMPE, Sinopec research institute of petroleum processing Co., LTD., Beijing 100083, China.
- East China Normal University, Shanghai 200062, P. R. China
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5
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Dutton KG, Jones TJ, Emge TJ, Lipke MC. Cage Match: Comparing the Anion Binding Ability of Isostructural Versus Isofunctional Pairs of Metal-Organic Nanocages. Chemistry 2024; 30:e202303013. [PMID: 37907394 DOI: 10.1002/chem.202303013] [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: 09/15/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/02/2023]
Abstract
Affinities of six anions (mesylate, acetate, trifluoroacetate, p-toluenecarboxylate, p-toluenesulfonate, and perfluorooctanoate) for three related Pt2+ -linked porphyrin nanocages were measured to probe the influence of different noncovalent recognition motifs (e. g., hydrogen bonding, electrostatics, π bonding) on anion binding. Two new hosts of M6 L3 12+ (1b) and M4 L2 8+ (2) composition (M=(en)Pt2+ , L=(3-py)4 porphyrin) were prepared in a one-pot synthesis and allowed comparison of hosts that differ in structure while maintaining similar N-H hydrogen-bond donor ability. Comparisons of isostructural hosts that differ in hydrogen-bonding ability were made between 1b and a related M6 L3 12+ nanoprism (1a, M=(tmeda)Pt2+ ) that lacks N-H groups. Considerable variation in association constants (K1 =1.6×103 M-1 to 1.3×108 M-1 ) and binding mode (exo vs. endo) were found for different host-guest combinations. Strongest binding was seen between p-toluenecarboxylate and 1b, but surprisingly, association of this guest with 1a was only slightly weaker despite the absence of NH⋅⋅⋅O interactions. The high affinity between p-toluenecarboxylate and 1a could be turned off by protonation, and this behavior was used to toggle between the binding of this guest and the environmental pollutant perfluorooctanoate, which otherwise has a lower affinity for the host.
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Affiliation(s)
- Kaitlyn G Dutton
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
| | - Taro J Jones
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
| | - Thomas J Emge
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
| | - Mark C Lipke
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
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6
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Huang YH, Lu YL, Zhang XD, Liu CH, Ruan J, Qin YH, Cao ZM, Jiang J, Xu HS, Su CY. Dynamic Stereochemistry of M 8 Pd 6 Supramolecular Cages Based on Metal-Center Lability for Differential Chiral Induction, Resolution, and Recognition. Angew Chem Int Ed Engl 2024; 63:e202315053. [PMID: 37883532 DOI: 10.1002/anie.202315053] [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: 10/07/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 10/28/2023]
Abstract
A series of isostructural supramolecular cages with a rhombic dodecahedron shape have been assembled with distinct metal-coordination lability (M8 Pd6 -MOC-16, M=Ru2+ , Fe2+ , Ni2+ , Zn2+ ). The chirality transfer between metal centers generally imposes homochirality on individual cages to enable solvent-dependent spontaneous resolution of Δ8 /Λ8 -M8 Pd6 enantiomers; however, their distinguishable stereochemical dynamics manifests differential chiral phenomena governed by the cage stability following the order Ru8 Pd6 >Ni8 Pd6 >Fe8 Pd6 >Zn8 Pd6 . The highly labile Zn centers endow the Zn8 Pd6 cage with conformational flexibility and deformation, enabling intrigue chiral-Δ8 /Λ8 -Zn8 Pd6 to meso-Δ4 Λ4 -Zn8 Pd6 transition induced by anions. The cage stabilization effect differs from inert Ru2+ , metastable Fe2+ /Ni2+ , and labile Zn2+ , resulting in different chiral-guest induction. Strikingly, solvent-mediated host-guest interactions have been revealed for Δ8 /Λ8 -(Ru/Ni/Fe)8 Pd6 cages to discriminate the chiral recognition of the guests with opposite chirality. These results demonstrate a versatile procedure to control the stereochemistry of metal-organic cages based on the dynamic metal centers, thus providing guidance to maneuver cage chirality at a supramolecular level by virtue of the solvent, anion, and guest to benefit practical applications.
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Affiliation(s)
- Yin-Hui Huang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yu-Lin Lu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xiao-Dong Zhang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Chen-Hui Liu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jia Ruan
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yu-Han Qin
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Zhong-Min Cao
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jijun Jiang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Hai-Sen Xu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Cheng-Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
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7
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Chang X, Xu Y, von Delius M. Recent advances in supramolecular fullerene chemistry. Chem Soc Rev 2024; 53:47-83. [PMID: 37853792 PMCID: PMC10759306 DOI: 10.1039/d2cs00937d] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Indexed: 10/20/2023]
Abstract
Fullerene chemistry has come a long way since 1990, when the first bulk production of C60 was reported. In the past decade, progress in supramolecular chemistry has opened some remarkable and previously unexpected opportunities regarding the selective (multiple) functionalization of fullerenes and their (self)assembly into larger structures and frameworks. The purpose of this review article is to provide a comprehensive overview of these recent developments. We describe how macrocycles and cages that bind strongly to C60 can be used to block undesired addition patterns and thus allow the selective preparation of single-isomer addition products. We also discuss how the emergence of highly shape-persistent macrocycles has opened opportunities for the study of photoactive fullerene dyads and triads as well as the preparation of mechanically interlocked compounds. The preparation of two- or three-dimensional fullerene materials is another research area that has seen remarkable progress over the past few years. Due to the rapidly decreasing price of C60 and C70, we believe that these achievements will translate into all fields where fullerenes have traditionally (third-generation solar cells) and more recently been applied (catalysis, spintronics).
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Affiliation(s)
- Xingmao Chang
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, China.
- Institute of Organic Chemistry, Ulm University, Ulm 89081, Germany.
| | - Youzhi Xu
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, China.
| | - Max von Delius
- Institute of Organic Chemistry, Ulm University, Ulm 89081, Germany.
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8
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Spicer RL, O'Connor HM, Ben-Tal Y, Zhou H, Boaler PJ, Milne FC, Brechin EK, Lloyd-Jones GC, Lusby PJ. Exo-cage catalysis and initiation derived from photo-activating host-guest encapsulation. Chem Sci 2023; 14:14140-14145. [PMID: 38098714 PMCID: PMC10718074 DOI: 10.1039/d3sc04877b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023] Open
Abstract
Coordination cage catalysis has commonly relied on the endogenous binding of substrates, exploiting the cavity microenvironment and spatial constraints to engender increased reactivity or interesting selectivity. Nonetheless, there are issues with this approach, such as the frequent occurrence of product inhibition or the limited applicability to a wide range of substrates and reactions. Here we describe a strategy in which the cage acts as an exogenous catalyst, wherein reactants, intermediates and products remain unbound throughout the course of the catalytic cycle. Instead, the cage is used to alter the properties of a cofactor guest, which then transfers reactivity to the bulk-phase. We have exemplified this approach using photocatalysis, showing that a photoactivated host-guest complex can mediate [4 + 2] cycloadditions and the aza-Henry reaction. Detailed in situ photolysis experiments show that the cage can both act as a photo-initiator and as an on-cycle catalyst where the quantum yield is less than unity.
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Affiliation(s)
- Rebecca L Spicer
- EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh Scotland EH9 3FJ UK
| | - Helen M O'Connor
- EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh Scotland EH9 3FJ UK
| | - Yael Ben-Tal
- EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh Scotland EH9 3FJ UK
| | - Hang Zhou
- EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh Scotland EH9 3FJ UK
| | - Patrick J Boaler
- EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh Scotland EH9 3FJ UK
| | - Fraser C Milne
- EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh Scotland EH9 3FJ UK
| | - Euan K Brechin
- EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh Scotland EH9 3FJ UK
| | - Guy C Lloyd-Jones
- EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh Scotland EH9 3FJ UK
| | - Paul J Lusby
- EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh Scotland EH9 3FJ UK
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9
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Das S, Sai Naik MB, Maliyekkal G, Maity SB, Jana A. Recent update on the electroactive oligopyrrolic macrocyclic hosts with a Bucky-ball heart. Chem Commun (Camb) 2023; 59:12972-12985. [PMID: 37828866 DOI: 10.1039/d3cc04028c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Supramolecular chemistry is a multidisciplinary research area mostly associated with the investigation of host-guest interactions within intricate three-dimensional (3D) molecular architectures held together reversibly by various non-covalent interactions. Continuous efforts to develop such kinds of complex host-guest systems with designer oligopyrrolic macrocyclic receptors are a rapidly growing research domain, which is deeply involved in applied supramolecular chemistry research. These host-guest supramolecular complexes can be constructed by combining suitable electron-rich oligopyrrolic donors (as a host) with complementary electron-poor guests (as acceptors), held together by the ionic force of attraction triggered by intermolecular charge/electron transfer (CT/ET) transitions. Some of these resulting CT/ET ensembles are potential candidates for the construction of efficient optoelectronic materials, optical sensors, molecular switches, etc. In this Feature Article we aim to focus on these supramolecular ensembles composed by size and shape complementary electroactive oligopyrrolic molecular containers, which are suitable for spherical guest (e.g., buckminsterfullerene) complexation. We also provide a "state-of-the-art" overview on plausible applications of these particular host-guest systems. Our aim is to cover only specific electron-rich tetrathiafulvalene (TTF)-based oligopyrrolic receptors, e.g., TTF-calix[4]pyrroles, TTF-cryptands, TTF-porphyrins and exTTF-porphyrin-based molecular motifs reported to date, along with a brief outlining of their "functional behaviour" in materials chemistry research.
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Affiliation(s)
- Shubhasree Das
- Applied Supramolecular Chemistry Research Laboratory, Department of Chemistry, Gandhi Institute of Technology and Management (GITAM), Gandhinagar, Rushikonda, Visakhapatnam - 530045, Andhra Pradesh, India.
| | - M Bhargav Sai Naik
- Applied Supramolecular Chemistry Research Laboratory, Department of Chemistry, Gandhi Institute of Technology and Management (GITAM), Gandhinagar, Rushikonda, Visakhapatnam - 530045, Andhra Pradesh, India.
| | - Godwin Maliyekkal
- Department of Chemical Sciences, IISER Mohali, Manauli - 140306, Punjab, India
| | - Shubhra Bikash Maity
- Faculty of Physical and Mathematical Sciences, Department of Chemistry, C. V. Raman Global University, Bhubaneswar - 752054, India
| | - Atanu Jana
- Applied Supramolecular Chemistry Research Laboratory, Department of Chemistry, Gandhi Institute of Technology and Management (GITAM), Gandhinagar, Rushikonda, Visakhapatnam - 530045, Andhra Pradesh, India.
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10
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Chen H, Roy I, Myong MS, Seale JSW, Cai K, Jiao Y, Liu W, Song B, Zhang L, Zhao X, Feng Y, Liu F, Young RM, Wasielewski MR, Stoddart JF. Triplet-Triplet Annihilation Upconversion in a Porphyrinic Molecular Container. J Am Chem Soc 2023; 145:10061-10070. [PMID: 37098077 DOI: 10.1021/jacs.2c13846] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
Triplet-triplet annihilation-based molecular photon upconversion (TTA-UC) is a photophysical phenomenon that can yield high-energy emitting photons from low-energy incident light. TTA-UC is believed to fuse two triplet excitons into a singlet exciton through several consecutive energy-conversion processes. When organic aromatic dyes─i.e., sensitizers and annihilators─are used in TTA-UC, intermolecular distances, as well as relative orientations between the two chromophores, are important in an attempt to attain high upconversion efficiencies. Herein, we demonstrate a host-guest strategy─e.g., a cage-like molecular container incorporating two porphyrinic sensitizers and encapsulating two perylene emitters inside its cavity─to harness photon upconversion. Central to this design is tailoring the cavity size (9.6-10.4 Å) of the molecular container so that it can host two annihilators with a suitable [π···π] distance (3.2-3.5 Å). The formation of a complex with a host:guest ratio of 1:2 between a porphyrinic molecular container and perylene was confirmed by NMR spectroscopy, mass spectrometry, and isothermal titration calorimetry (ITC) as well as by DFT calculations. We have obtained TTA-UC yielding blue emission at 470 nm when the complex is excited with low-energy photons. This proof-of-concept demonstrates that TTA-UC can take place in one supermolecule by bringing together the sensitizers and annihilators. Our investigations open up some new opportunities for addressing several issues associated with supramolecular photon upconversion, such as sample concentrations, molecular aggregation, and penetration depths, which have relevance to biological imaging applications.
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Affiliation(s)
- Hongliang Chen
- Department of Chemistry, Stoddart Institute of Molecular Science, Zhejiang University, Hangzhou 310027, China
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
| | - Indranil Roy
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michele S Myong
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - James S W Seale
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Kang Cai
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300072, China
| | - Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Wenqi Liu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Bo Song
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xingang Zhao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yuanning Feng
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Fangjun Liu
- Department of Chemistry, Stoddart Institute of Molecular Science, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
| | - Ryan M Young
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael R Wasielewski
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - J Fraser Stoddart
- Department of Chemistry, Stoddart Institute of Molecular Science, Zhejiang University, Hangzhou 310027, China
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
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11
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Sarkar M, Hey-Hawkins E, Boomishankar R. Encapsulation Studies on closo-Dicarbadodecaborane Isomers in Neutral Tetrahedral Palladium(II) Cages. Inorg Chem 2023; 62:4035-4042. [PMID: 36857772 DOI: 10.1021/acs.inorgchem.2c04207] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
The encapsulation of icosahedral closo-dicarbadodecaborane (o-, m-, and p-carboranes, Cb) as guest molecules at the intrinsic cavities of the three isostructural tetrahedral cages [{Pd3(NiPr)3PO}4(Cl-AN)6] (1), [{Pd3(NiPr)3PO}4(Br-AN)6] (2), and [{Pd3(NiPr)3PO}4(H-AN)6] (3) was studied. The formation of definite host-guest assemblies was probed with mass spectrometry, IR, and NMR spectral analysis. 2D DOSY 1H NMR of the Cb⊂Cage systems showed similar diffusion coefficient (D) values for the host and guest species, signifying the encapsulation of these guests inside the cage assemblies. The hydrodynamic radius (RH) derived from the D values of the host and guest species further confirmed the encapsulation of the Cb isomers at the cage pockets. The single-molecule energy optimization of the host-guest assemblies indicated the preferential binding of o-Cb as a guest inside the cages (1-3). The stabilization of these Cb guests inside these cages was further attributed to various possible nonclassical C-H···X-type interactions.
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Affiliation(s)
- Meghamala Sarkar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune 411008, India
| | - Evamarie Hey-Hawkins
- Institut für Anorganische Chemie, Fakultät für Chemie und Mineralogie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Ramamoorthy Boomishankar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune 411008, India.,Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune 411008, India
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12
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Bera S, Das S, Melle-Franco M, Mateo-Alonso A. An Organic Molecular Nanobarrel that Hosts and Solubilizes C 60. Angew Chem Int Ed Engl 2023; 62:e202216540. [PMID: 36469042 PMCID: PMC10107786 DOI: 10.1002/anie.202216540] [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: 11/09/2022] [Revised: 12/05/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Organic cages have gained increasing attention in recent years as molecular hosts and porous materials. Among these, barrel-shaped cages or molecular nanobarrels are promising systems to encapsulate large hosts as they possess windows of the same size as their internal cavity. However, these systems have received little attention and remain practically unexplored despite their potential. Herein, we report the design and synthesis of a new trigonal prismatic organic nanobarrel with two large triangular windows with a diameter of 12.7 Å optimal for the encapsulation of C60 . Remarkably, this organic nanobarrel shows a high affinity for C60 in solvents in which C60 is virtually insoluble, providing stable solutions of C60 .
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Affiliation(s)
- Saibal Bera
- POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018, Donostia-San Sebastián, Spain
| | - Satyajit Das
- POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018, Donostia-San Sebastián, Spain
| | - Manuel Melle-Franco
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Aurelio Mateo-Alonso
- POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018, Donostia-San Sebastián, Spain.,Ikerbasque, Basque Foundation for Science, 48009, Bilbao, Spain
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13
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Sen S, Ishiwari F, Kaur R, Ishida M, Ray D, Kikuchi K, Mori T, Bähring S, Lynch VM, Saeki A, Guldi DM, Sessler JL, Jana A. Supramolecular Recognition within a Nanosized "Buckytrap" That Exhibits Substantial Photoconductivity. J Am Chem Soc 2023; 145:1031-1039. [PMID: 36608693 DOI: 10.1021/jacs.2c10555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We report here a nanosized "buckytrap", 1, constructed from two bis-zinc(II) expanded-TTF (exTTF) porphyrin subunits. Two forms, 1a and 1b, differing in the axial ligands, H2O vs tetrahydrofuran (THF), were isolated and characterized. Discrete host-guest inclusion complexes are formed upon treatment with fullerenes as inferred from a single-crystal X-ray structural analyses of 1a with C70. The fullerene is found to be encapsulated within the inner pseudohexagonal cavity of 1a. In contrast, the corresponding free-base derivative (2) was found to form infinite ball-and-socket type supramolecular organic frameworks (3D-SOFs) with fullerenes, (2•C60)n or (2•C70)n. This difference is ascribed to the fact that in 1a and 1b the axial positions are blocked by a H2O or THF ligand. Emission spectroscopic studies supported a 1:1 host-guest binding stoichiometry, allowing association constants of (2.0 ± 0.5) × 104 M-1 and (4.3 ± 0.9) × 104 M-1 to be calculated for C60 and C70, respectively. Flash-photolysis time-resolved microwave conductivity (FP-TRMC) studies of solid films of the Zn-complex 1a revealed that the intrinsic charge carrier transport, i.e., pseudo-photoconductivity (ϕ∑μ), increases upon fullerene inclusion (e.g., ϕ∑μ = 1.53 × 10-4 cm2 V-1 s-1 for C60⊂(1a)2 and ϕ∑μ = 1.45 × 10-4 cm2 V-1 s-1 for C70⊂(1a)2 vs ϕ∑μ = 2.49 × 10-5 cm2 V-1 s-1 for 1a) at 298 K. These findings provide support for the notion that controlling the nature of self-assembly supramolecular constructs formed from exTTF-porphyrin dimers through metalation or choice of fullerene can be used to regulate key functional features, including photoconductivity.
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Affiliation(s)
- Sajal Sen
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street Stop A 5300, Austin, Texas 78712-1224, United States
| | - Fumitaka Ishiwari
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ramandeep Kaur
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Masatoshi Ishida
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Debmalya Ray
- Department of Chemistry, Chemical Theory Center, Minnesota Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Koichi Kikuchi
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Takehiko Mori
- Department of Materials Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguru-ku, Tokyo 152-8552, Japan
| | - Steffen Bähring
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Vincent M Lynch
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street Stop A 5300, Austin, Texas 78712-1224, United States
| | - Akinori Saeki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Dirk M Guldi
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street Stop A 5300, Austin, Texas 78712-1224, United States
| | - Atanu Jana
- Applied Supramolecular Chemistry Research Laboratory, Department of Chemistry, Gandhi Institute of Technology and Management (GITAM), Gandhinagar, Rushikonda, Visakhapatnam 530045, Andhra Pradesh, India
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14
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15
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Pfrunder MC, Marshall DL, Poad BLJ, Stovell EG, Loomans BI, Blinco JP, Blanksby SJ, McMurtrie JC, Mullen KM. Exploring the Gas-Phase Formation and Chemical Reactivity of Highly Reduced M 8 L 6 Coordination Cages. Angew Chem Int Ed Engl 2022; 61:e202212710. [PMID: 36102176 PMCID: PMC9827999 DOI: 10.1002/anie.202212710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Indexed: 01/12/2023]
Abstract
Coordination cages with well-defined cavities show great promise in the field of catalysis on account of their unique combination of molecular confinement effects and transition-metal redox chemistry. Here, three coordination cages are reduced from their native 16+ oxidation state to the 2+ state in the gas phase without observable structural degradation. Using this method, the reaction rate constants for each reduction step were determined, with no noticeable differences arising following either the incorporation of a C60 -fullerene guest or alteration of the cage chemical structure. The reactivity of highly reduced cage species toward molecular oxygen is "switched-on" after a threshold number of reduction steps, which is influenced by guest molecules and the structure of cage components. These new experimental approaches provide a unique window to explore the chemistry of highly-reduced cage species that can be modulated by altering their structures and encapsulated guest species.
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Affiliation(s)
- Michael C. Pfrunder
- Centre for Materials Science (CFMS)Queensland University of Technology (QUT)2 George StreetBrisbaneQueensland4000Australia,School of Chemistry and PhysicsQueensland University of Technology2 George StreetBrisbaneQueensland4000Australia
| | - David L. Marshall
- Centre for Materials Science (CFMS)Queensland University of Technology (QUT)2 George StreetBrisbaneQueensland4000Australia,Central Analytical Research Facility (CARF)Queensland University of Technology2 George StreetBrisbaneQueensland4000Australia
| | - Berwyck L. J. Poad
- Centre for Materials Science (CFMS)Queensland University of Technology (QUT)2 George StreetBrisbaneQueensland4000Australia,School of Chemistry and PhysicsQueensland University of Technology2 George StreetBrisbaneQueensland4000Australia,Central Analytical Research Facility (CARF)Queensland University of Technology2 George StreetBrisbaneQueensland4000Australia
| | - Ethan G. Stovell
- School of Chemistry and PhysicsQueensland University of Technology2 George StreetBrisbaneQueensland4000Australia
| | - Benjamin I. Loomans
- Centre for Materials Science (CFMS)Queensland University of Technology (QUT)2 George StreetBrisbaneQueensland4000Australia,School of Chemistry and PhysicsQueensland University of Technology2 George StreetBrisbaneQueensland4000Australia
| | - James P. Blinco
- Centre for Materials Science (CFMS)Queensland University of Technology (QUT)2 George StreetBrisbaneQueensland4000Australia,School of Chemistry and PhysicsQueensland University of Technology2 George StreetBrisbaneQueensland4000Australia
| | - Stephen J. Blanksby
- Centre for Materials Science (CFMS)Queensland University of Technology (QUT)2 George StreetBrisbaneQueensland4000Australia,School of Chemistry and PhysicsQueensland University of Technology2 George StreetBrisbaneQueensland4000Australia,Central Analytical Research Facility (CARF)Queensland University of Technology2 George StreetBrisbaneQueensland4000Australia
| | - John C. McMurtrie
- Centre for Materials Science (CFMS)Queensland University of Technology (QUT)2 George StreetBrisbaneQueensland4000Australia,School of Chemistry and PhysicsQueensland University of Technology2 George StreetBrisbaneQueensland4000Australia
| | - Kathleen M. Mullen
- Centre for Materials Science (CFMS)Queensland University of Technology (QUT)2 George StreetBrisbaneQueensland4000Australia,School of Chemistry and PhysicsQueensland University of Technology2 George StreetBrisbaneQueensland4000Australia
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16
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Chai L, Ju Y, Xing J, Ma X, Zhao X, Tan Y. Nanographene Metallaprisms: Structure, Stimulated Transformation, and Emission Enhancement. Angew Chem Int Ed Engl 2022; 61:e202210268. [DOI: 10.1002/anie.202210268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Ling Chai
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Yang‐Yang Ju
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Jiang‐Feng Xing
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xiao‐Hui Ma
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin‐Jing Zhao
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Yuan‐Zhi Tan
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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17
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Bobylev EO, Poole DA, de Bruin B, Reek JNH. M 6L 12 Nanospheres with Multiple C 70 Binding Sites for 1O 2 Formation in Organic and Aqueous Media. J Am Chem Soc 2022; 144:15633-15642. [PMID: 35977385 PMCID: PMC9437924 DOI: 10.1021/jacs.2c05507] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Singlet oxygen is a potent oxidant with major applications
in organic
synthesis and medicinal treatment. An efficient way to produce singlet
oxygen is the photochemical generation by fullerenes which exhibit
ideal thermal and photochemical stability. In this contribution we
describe readily accessible M6L12 nanospheres
with unique binding sites for fullerenes located at the windows of
the nanospheres. Up to four C70 can be associated with
a single nanosphere, presenting an efficient method for fullerene
extraction and application. Depending on the functionality located
on the outside of the sphere, they act as vehicles for 1O2 generation in organic or in aqueous media using white
LED light. Excellent productivity in 1O2 generation
and consecutive oxidation of 1O2 acceptors using
C70⊂[Pd6L12], C60⊂[Pd6L12] or fullerene soot extract
was observed. The methodological design principles allow preparation
and application of highly effective multifullerene binding spheres.
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Affiliation(s)
- Eduard O Bobylev
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam The Netherlands
| | - David A Poole
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam The Netherlands
| | - Bas de Bruin
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam The Netherlands
| | - Joost N H Reek
- van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam The Netherlands
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18
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Chai L, Ju YY, Xing JF, Ma XH, Zhao XJ, Tan YZ. Nanographene Metallaprisms: Structure, Stimulated Transformation, and Emission Enhancement. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210268] [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)
| | | | | | | | | | - Yuan-Zhi Tan
- Xiamen University Department of Chemistry Siminnan Road 422 361005 Xiamen CHINA
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19
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Rothschild DA, Kopcha WP, Tran A, Zhang J, Lipke MC. Gram-scale synthesis of a covalent nanocage that preserves the redox properties of encapsulated fullerenes. Chem Sci 2022; 13:5325-5332. [PMID: 35655559 PMCID: PMC9093146 DOI: 10.1039/d2sc00445c] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 04/04/2022] [Indexed: 11/21/2022] Open
Abstract
Discrete nanocages provide a way to solubilize, separate, and tune the properties of fullerenes, but these 3D receptors cannot usually be synthesized easily from inexpensive starting materials, limiting their utility. Herein, we describe the first fullerene-binding nanocage (Cage4+) that can be made efficiently on a gram scale. Cage4+ was prepared in up to 57% yield by the formation of pyridinium linkages between complemantary porphyrin components that are themselves readily accessible. Cage4+ binds C60 and C70 with large association constants (>108 M−1), thereby solubilizing these fullerenes in polar solvents. Fullerene association and redox-properties were subsequently investigated across multiple charge states of the host-guest complexes. Remarkably, neutral and singly reduced fullerenes bind with similar strengths, leaving their 0/1− redox couples minimally perturbed and fully reversible, whereas other hosts substantially alter the redox properties of fullerenes. Thus, C60@Cage4+ and C70@Cage4+ may be useful as solubilized fullerene derivatives that preserve the inherent electron-accepting and electron-transfer capabilities of the fullerenes. Fulleride dianions were also found to bind strongly in Cage4+, while further reduction is centered on the host, leading to lowered association of the fulleride guest in the case of C602−. This report describes the first gram-scale synthesis of a nanocage that can host fullerenes (C60 and C70). The redox properties of the fullerenes are preserved in this host, enabling characterization of complexes with fulleride anions and dianions.![]()
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Affiliation(s)
- Daniel A Rothschild
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
| | - William P Kopcha
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
| | - Aaron Tran
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
| | - Jianyuan Zhang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
| | - Mark C Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey 123 Bevier Rd Piscataway NJ 08854 USA
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20
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Chen B, Holstein JJ, Platzek A, Schneider L, Wu K, Clever GH. Cooperativity of steric bulk and H-bonding in coordination sphere engineering: heteroleptic Pd II cages and bowls by design. Chem Sci 2022; 13:1829-1834. [PMID: 35282629 PMCID: PMC8826863 DOI: 10.1039/d1sc06931d] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 01/16/2022] [Indexed: 12/24/2022] Open
Abstract
Recently developed self-assembly strategies allow to rationally reduce the symmetry of metallosupramolecular architectures. In addition, the combination of multiple ligand types without creating compound mixtures has become possible. Among several approaches to realize non-statistical heteroleptic assembly, Coordination Sphere Engineering (CSE) makes use of secondary repulsive or attractive interactions in direct vicinity of the metal nodes. Previously, we used steric congestion to turn dinuclear [Pd2L4] cages with fourfold symmetry into [Pd2L3X2] (X = solvent, halide) bowl structures. Here, we introduce a new subtype of this strategy based on balancing hydrogen bonding and repulsive interactions between ligands carrying quinoline (LQu) and 1,8-naphthyridine (LNa) donors to generate trans-[Pd2L2] and [Pd2L3L′] cages, assisted by templation of encapsulated fullerenes. Combined with steric congestion caused by acridine (LAc) donors, we further report the first example of a heteroleptic [Pd2L2L′X2] bowl. Formation, structure and fullerene binding ability of these metallo-supramolecular hosts were studied by NMR, mass spectrometry and single crystal X-ray diffraction. Coordination Sphere Engineering (CSE) allows non-statistical assembly of heteroleptic supramolecular architectures by fine adjustment of steric and electronic features around square-planar Pd(ii) cations with naphthyridine donors.![]()
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Affiliation(s)
- Bin Chen
- Department of Chemistry and Chemical Biology, TU Dortmund University Otto-Hahn Straße 6 44227 Dortmund Germany .,State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University Suzhou 215123 China
| | - Julian J Holstein
- Department of Chemistry and Chemical Biology, TU Dortmund University Otto-Hahn Straße 6 44227 Dortmund Germany
| | - André Platzek
- Department of Chemistry and Chemical Biology, TU Dortmund University Otto-Hahn Straße 6 44227 Dortmund Germany
| | - Laura Schneider
- Department of Chemistry and Chemical Biology, TU Dortmund University Otto-Hahn Straße 6 44227 Dortmund Germany
| | - Kai Wu
- Department of Chemistry and Chemical Biology, TU Dortmund University Otto-Hahn Straße 6 44227 Dortmund Germany .,Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Guido H Clever
- Department of Chemistry and Chemical Biology, TU Dortmund University Otto-Hahn Straße 6 44227 Dortmund Germany
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21
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Zhou W, Sarma T, Su Y, Lei C, Sessler JL. Kinetic trapping of a cobalt(ii) metallocage using a carbazole-containing expanded carbaporphyrinoid ligand. Chem Sci 2022; 13:692-697. [PMID: 35173933 PMCID: PMC8768885 DOI: 10.1039/d1sc06514a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/19/2021] [Indexed: 11/21/2022] Open
Abstract
The meso-unsubstituted expanded porphyrinoid 3, incorporating two carbazole moieties, acts as an effective ligand for Co(ii) and permits the isolation and X-ray diffraction-based characterization of a 6 : 3 metal-to-ligand metallocage complex that converts spontaneously to the constituent 2 : 1 metal-to-ligand metalloring species in chloroform solution. The discrete metalloring is formed directly when the Co(ii) complex is crystallized from supersaturated solutions, whereas crystallization from more dilute solutions favors the metallocage. Studies with two other test cations, Pd(ii) and Zn(ii), revealed exclusive formation of the monomeric metalloring complexes with no evidence of higher order species being formed. Structural, electrochemical and UV-vis-NIR absorption spectral studies provide support for the conclusion that the Pd(ii) complex is less distorted and more effectively conjugated than its Co(ii) and Zn(ii) congeners, an inference further supported by TD-DFT calculations. The findings reported here underscore how expanded porphyrins can support coordination modes, including bimetallic complexes and self-assembled cage structures, that are not necessarily easy to access using more traditional ligand systems. Carbazole containing expanded carbaporphyrinoid ligand supports the formation of 2 : 1 metal-to-ligand complexes with Pd, Co, and Zn. Solid-state studies also revealed formation of a 6 : 3 metal-to-ligand metallocage in the case of Co complexation.![]()
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Affiliation(s)
- Weinan Zhou
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Tridib Sarma
- Department of Chemistry, Cotton University, Guwahati 781001, Assam, India
| | - Yonghuan Su
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Chuanhu Lei
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Jonathan L. Sessler
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, USA
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Abstract
New synthetic routes are presented to derivatives of a (known) M8L12 cubic coordination cage in which a range of different substituents are attached at the C4 position of the pyridyl rings at either end of the bis(pyrazolyl-pyridine) bridging ligands. The substituents are (i) –CN groups (new ligand LCN), (ii) –CH2OCH2–CCH (containing a terminal alkyne) groups (new ligand LCC); and (iii) –(CH2OCH2)3CH2OMe (tri-ethyleneglycol monomethyl ether) groups (new ligand LPEG). The resulting functionalised ligands combine with M2+ ions (particularly Co2+, Ni2+, Cd2+) to give isostructural [M8L12]16+ cage cores bearing 24 external functional groups; the cages based on LCN (with M2+ = Cd2+) and LCC (with M2+ = Ni2+) have been crystallographically characterised. The value of these is twofold: (i) exterior nitrile or alkene substituents can provide a basis for further synthetic opportunities via ‘Click’ reactions allowing in principle a diverse range of functionalisation of the cage exterior surface; (ii) the exterior –(CH2OCH2)3CH2OMe groups substantially increase cage solubility in both water and in organic solvents, allowing binding constants of cavity-binding guests to be measured under an increased range of conditions.
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Yamamura M, Saito T, Hasegawa T, Nishibori E, Nabeshima T. Synthesis of a chiral metallo-capsule composed of concave molecules and chirogenesis upon fullerene binding. Chem Commun (Camb) 2021; 57:8754-8757. [PMID: 34378583 DOI: 10.1039/d1cc02341a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantiopure molecular capsule was synthesized quantitatively using complexation of four phosphangulenes as concave molecules with four Zn2+ ions and applied to fullerene binding and chirogenesis. The capsule encapsulated selectively fullerene and its derivatives based on the size of cavity. The fullerene C60 incorporated in the capsule exhibited induced-CD signals at the transitions of C60.
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Affiliation(s)
- Masaki Yamamura
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan.
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24
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Pei WY, Lu BB, Yang J, Wang T, Ma JF. Two new calix[4]resorcinarene-based coordination cages adjusted by metal ions for the Knoevenagel condensation reaction. Dalton Trans 2021; 50:9942-9948. [PMID: 34225357 DOI: 10.1039/d1dt01139a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new calix[4]resorcinarene-based coordination cages, namely, [Zn4(TPC4R)(PDC)4]·2DMF·6H2O (1-Zn) and [In11(TPC4R)2(PDC)16(μ2-OH)2(H2O)2]·[(CH3)2NH2]·8DMF·20H2O·EtOH (2-In), have been synthesized via solvothermal reactions (TPC4R = tetra(2-(4H-pyrazol-3-yl)pyridine)calix[4]resorcinarene, H2PDC = 3,5-pyridinedicarboxylic acid, DMF = N,N'-dimethylformamide). By carefully tuning different metal ions, two structurally different cages 1-Zn and 2-In were achieved. The former shows a bowl-shaped structure, while the latter features a dumbbell-like structure. After activation, they exhibited unsaturated Zn(ii) or In(iii) Lewis acid sites and the free nitrogen Lewis base sites of the PDC2-. Therefore, they were employed as catalysts for the Knoevenagel condensation reaction in the absence of a solvent. Particularly, 1-Zn featured high structural stability and enhanced the catalytic activity.
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Affiliation(s)
- Wen-Yuan Pei
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun 130024, China.
| | - Bing-Bing Lu
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Jin Yang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun 130024, China.
| | - Tianqi Wang
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun, 130022, China.
| | - Jian-Fang Ma
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun 130024, China.
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26
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Hasegawa S, Meichsner SL, Holstein JJ, Baksi A, Kasanmascheff M, Clever GH. Long-Lived C 60 Radical Anion Stabilized Inside an Electron-Deficient Coordination Cage. J Am Chem Soc 2021; 143:9718-9723. [PMID: 34156243 DOI: 10.1021/jacs.1c02860] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Fullerene C60 and its derivatives are widely used in molecular electronics, photovoltaics, and battery materials, because of their exceptional suitability as electron acceptors. In this context, single-electron transfer on C60 generates the C60• - radical anion. However, the short lifetime of free C60• - hampers its investigation and application. In this work, we dramatically stabilize the usually short-lived C60• - species within a self-assembled M2L4 coordination cage consisting of a triptycene-based ligand and Pd(II) cations. The electron-deficient cage strongly binds C60 by providing a curved inner π-surface complementary to the fullerene's globular shape. Cyclic voltammetry revealed a positive potential shift for the first reduction of encapsulated C60, which is indicative of a strong interaction between confined C60• - and the cationic cage. Photochemical one-electron reduction with 1-benzyl-1,4-dihydronicotinamide allows selective and quantitative conversion of the confined C60 molecule in millimolar acetonitrile solution at room temperature. Radical generation was confirmed by nuclear magnetic resonance, electron paramagnetic resonance, ultraviolet-visible-near-infrared spectroscopy and electrospray ionization mass spectrometry. The lifetime of C60• - within the cage was determined to be so large that it could still be detected after one month under an inert atmosphere.
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Affiliation(s)
- Shota Hasegawa
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
| | - Shari L Meichsner
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
| | - Julian J Holstein
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
| | - Ananya Baksi
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
| | - Müge Kasanmascheff
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
| | - Guido H Clever
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
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28
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Shi J, Li Y, Jiang X, Yu H, Li J, Zhang H, Trainer DJ, Hla SW, Wang H, Wang M, Li X. Self-Assembly of Metallo-Supramolecules with Dissymmetrical Ligands and Characterization by Scanning Tunneling Microscopy. J Am Chem Soc 2021; 143:1224-1234. [PMID: 33395279 DOI: 10.1021/jacs.0c12508] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Asymmetrical and dissymmetrical structures are widespread and play a critical role in nature and life systems. In the field of metallo-supramolecular assemblies, it is still in its infancy for constructing artificial architectures using dissymmetrical building blocks. Herein, we report the self-assembly of supramolecular systems based on two dissymmetrical double-layered ligands. With the aid of ultra-high-vacuum, low-temperature scanning tunneling microscopy (UHV-LT-STM), we were able to investigate four isomeric structures corresponding to four types of binding modes of ligand LA with two major conformations complexes A. The distribution of isomers measured by STM and total binding energy of each isomer obtained by density functional theory (DFT) calculations suggested that the most abundant isomer could be the most stable one with highest total binding energy. Finally, through shortening the linker between inner and outer layers and the length of arms, the arrangement of dissymmetrical ligand LB could be controlled within one binding mode corresponding to the single conformation for complexes B.
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Affiliation(s)
- Junjuan Shi
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, China.,College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - Yiming Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, China.,Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Xin Jiang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, China
| | - Hao Yu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, China
| | - Jiaqi Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, China
| | - Houyu Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, China
| | - Daniel J Trainer
- Nanoscience and Technology Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Saw Wai Hla
- Nanoscience and Technology Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Heng Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - Ming Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, China
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, China.,Shenzhen University General Hospital, Clinical Medical Academy, Shenzhen University, Shenzhen, Guangdong 518055, China
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29
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Lei Z, Finnegan TJ, Gunawardana VWL, Pavlović RZ, Xie H, Moore CE, Badjić JD. A Molecular Capsule with Revolving Doors Partitioning Its Inner Space. Chemistry 2020; 26:16480-16485. [PMID: 32648599 DOI: 10.1002/chem.202003247] [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: 07/10/2020] [Indexed: 11/06/2022]
Abstract
Covalent capsule 1 was designed to include two molecular baskets linked with three mobile pyridines tucked into its inner space. On the basis of both theory (DFT) and experiments (NMR and X-ray crystallography), we found that the pyridine "doors" split the chamber (380 Å3 ) of 1 so that two equally sizeable compartments (190 Å3 ) became joined through a conformationally flexible aromatic barrier. The compartments of such unique host could be populated with CCl4 (88 Å3 ; PC=46 %), CBr4 (106 Å3 ; 56 %) or their combination CCl4 /CBr4 (PC=51 %), with thermodynamic stabilities ΔG° tracking the values of packing coefficients (PC). Halogen (C-X⋅⋅⋅π) and hydrogen bonding (C-H⋅⋅⋅X) contacts held the haloalkane guests in the cavities of 1. The consecutive complexations were found to occur in a negative allosteric manner, which we propose to result from the induced-fit mode of complexation. Newly designed 1 opens a way for probing the effects of inner conformational dynamics on noncovalent interactions, reactivity and intramolecular translation in confined spaces of hollow molecules.
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Affiliation(s)
- Zhiquan Lei
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH, 43228, USA
| | - Tyler J Finnegan
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH, 43228, USA
| | | | - Radoslav Z Pavlović
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH, 43228, USA
| | - Han Xie
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH, 43228, USA
| | - Curtis E Moore
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH, 43228, USA
| | - Jovica D Badjić
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH, 43228, USA
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30
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Koo J, Kim I, Kim Y, Cho D, Hwang IC, Mukhopadhyay RD, Song H, Ko YH, Dhamija A, Lee H, Hwang W, Kim S, Baik MH, Kim K. Gigantic Porphyrinic Cages. Chem 2020. [DOI: 10.1016/j.chempr.2020.10.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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31
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Three host peculiarities of a cycloalkane-based micelle toward large metal-complex guests. Nat Commun 2020; 11:6061. [PMID: 33247106 PMCID: PMC7695700 DOI: 10.1038/s41467-020-19886-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/03/2020] [Indexed: 11/08/2022] Open
Abstract
Linear alkanes are essential building blocks for natural and artificial assemblies in water. As compared with typical, linear alkane-based micelles and recent aromatic micelles, we herein develop a cycloalkane-based micelle, consisting of bent amphiphiles with two cyclohexyl frameworks. This uncommon type of micelle, with a spherical core diameter of ~ 2 nm, forms in water in a spontaneous and quantitative manner. The cycloalkane-based, hydrophobic cavity displays peculiar host abilities as follows: (i) highly efficient uptake of sterically demanding Zn(II)-tetraphenylporphyrin and rubrene dyes, (ii) selective uptake of substituted Cu(II)-phthalocyanines and spherical nanocarbons, and (iii) uptake-induced solution-state emission of [Au(I)-dimethylpyrazolate]3 in water. These host functions toward the large metal-complex and other guests studied herein remain unaccomplished by previously reported micelles and supramolecular containers. Typical micelles are molecular assemblies composed of amphiphiles bearing linear alkyl chains. Herein, the authors present an uncommon type of cycloalkane-based bent amphiphile and its micelle which encapsulates large metal- complexes with high uptake efficiency, selectivity, and emissivity in water.
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32
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Hardy M, Lützen A. Better Together: Functional Heterobimetallic Macrocyclic and Cage-like Assemblies. Chemistry 2020; 26:13332-13346. [PMID: 32297380 PMCID: PMC7693062 DOI: 10.1002/chem.202001602] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/14/2020] [Indexed: 12/18/2022]
Abstract
Metallosupramolecular chemistry has attracted the interest of generations of researches due to the versatile properties and functionalities of oligonuclear coordination complexes. Quite a number of different discrete cages were investigated, mostly consisting of only one type of ligand and one type of metal cation. Looking for ever more complex structures, heterobimetallic complexes became more and more attractive, as they give access to new structural motifs and functions. In the last years substantial success has been made in the design and synthesis of cages consisting of more than one type of metal cations, and a rapidly growing number of functional materials has appeared in the literature. This Minireview describes recent developments in the field of discrete heterometallic macrocycles and cages focusing on functional materials that have been used as host‐systems or as magnetic, photo‐active, redox‐active, and even catalytically active materials.
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Affiliation(s)
- Matthias Hardy
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str.1, 53111, Bonn, Germany
| | - Arne Lützen
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str.1, 53111, Bonn, Germany
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33
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Plajer AJ, Rizzuto FJ, von Krbek LKS, Gisbert Y, Martínez-Agramunt V, Nitschke JR. Oxidation triggers guest dissociation during reorganization of an Fe II 4L 6 twisted parallelogram. Chem Sci 2020; 11:10399-10404. [PMID: 34123180 PMCID: PMC8162311 DOI: 10.1039/d0sc04352d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 09/09/2020] [Indexed: 12/12/2022] Open
Abstract
A three-dimensional FeII 4L6 parallelogram was prepared from ferrocene-containing ditopic ligands. The steric preference of the bulky ferrocene cores towards meridional vertex coordination brought about this new structure type, in which the ferrocene units adopt three distinct conformations. The structure possesses two distinct, bowl-like cavities that host anionic guests. Oxidation of the ferrocene FeII to ferrocenium FeIII causes rotation of the ferrocene hinges, converting the structure to an FeII 1L1 + species with release of anionic guests, even though the average charge per iron increases in a way that would ordinarily increase guest binding strength. The degrees of freedom exhibited by these new structures - derived from the different configurations of the three ligands surrounding a meridional FeII center and the rotation of ferrocene cores - thus underpin their ability to reconfigure and eject guests upon oxidation.
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Affiliation(s)
- Alex J Plajer
- Department of Chemistry, University of Cambridge Lensfield Rd Cambridge CB2 1EW UK
| | - Felix J Rizzuto
- Department of Chemistry, University of Cambridge Lensfield Rd Cambridge CB2 1EW UK
| | | | - Yohan Gisbert
- Department of Chemistry, University of Cambridge Lensfield Rd Cambridge CB2 1EW UK
| | | | - Jonathan R Nitschke
- Department of Chemistry, University of Cambridge Lensfield Rd Cambridge CB2 1EW UK
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34
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Yamada M, Narita H, Maeda Y. A Fullerene‐Based Molecular Torsion Balance for Investigating Noncovalent Interactions at the C
60
Surface. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Michio Yamada
- Department of Chemistry Tokyo Gakugei University Nukuikitamachi 4-1-1 Koganei Tokyo 184-8501 Japan
| | - Haruna Narita
- Department of Chemistry Tokyo Gakugei University Nukuikitamachi 4-1-1 Koganei Tokyo 184-8501 Japan
| | - Yutaka Maeda
- Department of Chemistry Tokyo Gakugei University Nukuikitamachi 4-1-1 Koganei Tokyo 184-8501 Japan
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35
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Yamada M, Narita H, Maeda Y. A Fullerene-Based Molecular Torsion Balance for Investigating Noncovalent Interactions at the C 60 Surface. Angew Chem Int Ed Engl 2020; 59:16133-16140. [PMID: 32458522 DOI: 10.1002/anie.202005888] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 12/12/2022]
Abstract
To investigate the nature and strength of noncovalent interactions at the fullerene surface, molecular torsion balances consisting of C60 and organic moieties connected through a biphenyl linkage were synthesized. NMR and computational studies show that the unimolecular system remains in equilibrium between well-defined folded and unfolded conformers owing to restricted rotation around the biphenyl C-C bond. The energy differences between the two conformers depend on the substituents and is ascribed to differences in the intramolecular noncovalent interactions between the organic moieties and the fullerene surface. Fullerenes favor interacting with the π-faces of benzenes bearing electron-donating substituents. The correlation between the folding free energies and corresponding Hammett constants of the substituents in the arene-containing torsion balances reflects the contributions of the electrostatic interactions and dispersion force to face-to-face arene-fullerene interactions.
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Affiliation(s)
- Michio Yamada
- Department of Chemistry, Tokyo Gakugei University, Nukuikitamachi 4-1-1, Koganei, Tokyo, 184-8501, Japan
| | - Haruna Narita
- Department of Chemistry, Tokyo Gakugei University, Nukuikitamachi 4-1-1, Koganei, Tokyo, 184-8501, Japan
| | - Yutaka Maeda
- Department of Chemistry, Tokyo Gakugei University, Nukuikitamachi 4-1-1, Koganei, Tokyo, 184-8501, Japan
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36
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Chang X, Lin S, Wang G, Shang C, Wang Z, Liu K, Fang Y, Stang PJ. Self-Assembled Perylene Bisimide-Cored Trigonal Prism as an Electron-Deficient Host for C60 and C70 Driven by “Like Dissolves Like”. J Am Chem Soc 2020; 142:15950-15960. [DOI: 10.1021/jacs.0c06623] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xingmao Chang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Simin Lin
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Gang Wang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Congdi Shang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Zhaolong Wang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Kaiqiang Liu
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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37
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Dutton KG, Rothschild DA, Pastore DB, Emge TJ, Lipke MC. The Influence of Redox-Active Linkers on the Stability and Physical Properties of a Highly Electroactive Porphyrin Nanoprism. Inorg Chem 2020; 59:12616-12624. [DOI: 10.1021/acs.inorgchem.0c01719] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kaitlyn G. Dutton
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Daniel A. Rothschild
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Dakota B. Pastore
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Thomas J. Emge
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Mark C. Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
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38
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Harada K, Sekiya R, Haino T. A Regulable Internal Cavity inside a Resorcinarene-Based Hemicarcerand. Chemistry 2020; 26:5810-5817. [PMID: 32011768 DOI: 10.1002/chem.201905805] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Indexed: 01/29/2023]
Abstract
Covalent organic capsules, such as carcerands and hemicarcerands, are an interesting class of molecular hosts. These container molecules have confined spaces capable of hosting small molecules, although the fact that the size of the inner cavities cannot be changed substantially limits the scope of their applications. The title covalently linked container was produced by metal-directed dimerization of a resorcinarene-based cavitand having four 2,2'-bipyridyl arms on the wide rim followed by olefin metathesis at the vertices of the resulting capsule with a second-generation Grubbs catalyst. The covalently linked bipyridyl arms permit expansion of the inner cavity by demetalation. This structural change influences the molecular recognition properties; the metal-coordinated capsule recognizes only 4,4'-diacetoxybiphenyl, whereas the metal-free counterpart can encapsulate not only 4,4'-diacetoxybiphenyl, but also 2,5-disubstituted-1,4-bis(4-acetoxyphenylethynyl)benzene, which is 9.4 Å longer than the former guest. Molecular mechanics calculations predict that the capsule expands the internal cavity to encapsulate the long guest by unfolding the folded conformation of the alkyl chains, which demonstrates the flexible and regulable nature of the cavity. Guest competition experiments show that the preferred guest can be switched by metalation and demetalation. This external-stimuli-responsive guest exchange can be utilized for the development of functional supramolecular systems controlling the uptake, transport, and release of chemicals.
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Affiliation(s)
- Kentaro Harada
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
| | - Ryo Sekiya
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
| | - Takeharu Haino
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
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39
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Grommet AB, Feller M, Klajn R. Chemical reactivity under nanoconfinement. NATURE NANOTECHNOLOGY 2020; 15:256-271. [PMID: 32303705 DOI: 10.1038/s41565-020-0652-2] [Citation(s) in RCA: 304] [Impact Index Per Article: 76.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/28/2020] [Indexed: 06/11/2023]
Abstract
Confining molecules can fundamentally change their chemical and physical properties. Confinement effects are considered instrumental at various stages of the origins of life, and life continues to rely on layers of compartmentalization to maintain an out-of-equilibrium state and efficiently synthesize complex biomolecules under mild conditions. As interest in synthetic confined systems grows, we are realizing that the principles governing reactivity under confinement are the same in abiological systems as they are in nature. In this Review, we categorize the ways in which nanoconfinement effects impact chemical reactivity in synthetic systems. Under nanoconfinement, chemical properties can be modulated to increase reaction rates, enhance selectivity and stabilize reactive species. Confinement effects also lead to changes in physical properties. The fluorescence of light emitters, the colours of dyes and electronic communication between electroactive species can all be tuned under confinement. Within each of these categories, we elucidate design principles and strategies that are widely applicable across a range of confined systems, specifically highlighting examples of different nanocompartments that influence reactivity in similar ways.
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Affiliation(s)
- Angela B Grommet
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
| | - Moran Feller
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
| | - Rafal Klajn
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel.
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40
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Iizuka F, Ube H, Sato H, Nakamura T, Shionoya M. Self-assembled Porphyrin-based Cage Complexes, M 11L 6 (M = Zn II, Cd II), with Inner Coordination Sites in Their Crystal Structure. CHEM LETT 2020. [DOI: 10.1246/cl.190943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Fumiya Iizuka
- The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hitoshi Ube
- The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroyasu Sato
- Rigaku Corporation, 3-9-12 Matsubaracho, Akishima, Tokyo 196-8666, Japan
| | - Takashi Nakamura
- The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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41
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Coordination-driven assemblies based on meso-substituted porphyrins: Metal-organic cages and a new type of meso-metallaporphyrin macrocycles. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213165] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Computational discovery of molecular C 60 encapsulants with an evolutionary algorithm. Commun Chem 2020; 3:10. [PMID: 36703408 PMCID: PMC9814092 DOI: 10.1038/s42004-020-0255-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 12/20/2019] [Indexed: 01/29/2023] Open
Abstract
Computation is playing an increasing role in the discovery of materials, including supramolecular materials such as encapsulants. In this work, a function-led computational discovery using an evolutionary algorithm is used to find potential fullerene (C60) encapsulants within the chemical space of porous organic cages. We find that the promising host cages for C60 evolve over the simulations towards systems that share features such as the correct cavity size to host C60, planar tri-topic aldehyde building blocks with a small number of rotational bonds, di-topic amine linkers with functionality on adjacent carbon atoms, high structural symmetry, and strong complex binding affinity towards C60. The proposed cages are chemically feasible and similar to cages already present in the literature, helping to increase the likelihood of the future synthetic realisation of these predictions. The presented approach is generalisable and can be tailored to target a wide range of properties in molecular material systems.
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43
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Fazio E, Jesús Vicente-Arana M, Teresa Alonso M, Torres T, de la Torre G. Selective guest recognition by a metallo-organic phthalocyanine-based host. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424619501712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this manuscript, we have studied the selectivity in the complexation of fullerene species by a Fe[Formula: see text]Pc[Formula: see text] metallo-organic helicate (1) assembled using a bidentate phthalocyanine (Pc) as ligand. The large aromatic internal surface of this helicate shows a strong selectivity towards the encapsulation of C[Formula: see text] from a mixture of C[Formula: see text] and C[Formula: see text]. On the other hand, a bisimidazole-containing naphthalenediimide was used to perform guest exchange experiments over [fullerene [Formula: see text] 1] complexes, taking advantage of the strong coordination bond of the imidazole ring to the Zn centers in the Pc cavity.
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Affiliation(s)
- Ettore Fazio
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid., C/Francisco Tomás y Valiente 7, 28049, Madrid, Spain
| | - M. Jesús Vicente-Arana
- Servicio Interdepartamental de Investigación, Facultad de Ciencias, Universidad Autónoma de Madrid., C/Francisco Tomás y Valiente 7, 28049, Madrid Sciences (IAdChem). Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - M. Teresa Alonso
- Servicio Interdepartamental de Investigación, Facultad de Ciencias, Universidad Autónoma de Madrid., C/Francisco Tomás y Valiente 7, 28049, Madrid Sciences (IAdChem). Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Tomás Torres
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid., C/Francisco Tomás y Valiente 7, 28049, Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem). Universidad Autónoma de Madrid, 28049, Madrid, Spain
- Instituto Madrileño de Estudios Avanzados (IMDEA)-Nanociencia. C/Faraday 9, Cantoblanco, 28049 Madrid, Spain
| | - Gema de la Torre
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid., C/Francisco Tomás y Valiente 7, 28049, Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem). Universidad Autónoma de Madrid, 28049, Madrid, Spain
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44
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Spicer RL, Stergiou AD, Young TA, Duarte F, Symes MD, Lusby PJ. Host–Guest-Induced Electron Transfer Triggers Radical-Cation Catalysis. J Am Chem Soc 2020; 142:2134-2139. [DOI: 10.1021/jacs.9b11273] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rebecca L. Spicer
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Athanasios D. Stergiou
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Tom A. Young
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Fernanda Duarte
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Mark D. Symes
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Paul J. Lusby
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, U.K
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45
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Barendt TA, Myers WK, Cornes SP, Lebedeva MA, Porfyrakis K, Marques I, Félix V, Beer PD. The Green Box: An Electronically Versatile Perylene Diimide Macrocyclic Host for Fullerenes. J Am Chem Soc 2019; 142:349-364. [DOI: 10.1021/jacs.9b10929] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Timothy A. Barendt
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - William K. Myers
- Centre for Advanced ESR, Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Stuart P. Cornes
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - Maria A. Lebedeva
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - Kyriakos Porfyrakis
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - Igor Marques
- Department of Chemistry, CICECO − Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-193, Portugal
| | - Vítor Félix
- Department of Chemistry, CICECO − Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-193, Portugal
| | - Paul D. Beer
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
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Abstract
Over the past few decades, several molecular cages, hosts and nanoporous materials enclosing nanometre-sized cavities have been reported1-5, including coordination-driven nanocages6. Such nanocages have found widespread use in molecular recognition, separation, stabilization and the promotion of unusual chemical reactions, among other applications3-10. Most of the reported nanospaces within molecular hosts are confined by aromatic walls, the properties of which help to determine the host-guest behaviour. However, cages with nanospaces surrounded by antiaromatic walls have not yet been developed, owing to the instability of antiaromatic compounds; as such, the effect of antiaromatic walls on the properties of nanospaces remains unknown. Here we demonstrate the construction of an antiaromatic-walled nanospace within a self-assembled cage composed of four metal ions with six identical antiaromatic walls. Calculations indicate that the magnetic effects of the antiaromatic moieties surrounding this nanospace reinforce each other. This prediction is confirmed by 1H nuclear magnetic resonance (NMR) signals of bound guest molecules, which are observed at chemical shift values of up to 24 parts per million (ppm), owing to the combined antiaromatic deshielding effect of the surrounding rings. This value, shifted 15 ppm from that of the free guest, is the largest 1H NMR chemical shift displacement resulting from an antiaromatic environment observed so far. This cage may thus be considered as a type of NMR shift reagent, moving guest signals well beyond the usual NMR frequency range and opening the way to further probing the effects of an antiaromatic environment on a nanospace.
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Matsumoto K, Kusaba S, Tanaka Y, Sei Y, Akita M, Aritani K, Haga M, Yoshizawa M. A Peanut‐Shaped Polyaromatic Capsule: Solvent‐Dependent Transformation and Electronic Properties of a Non‐Contacted Fullerene Dimer. Angew Chem Int Ed Engl 2019; 58:8463-8467. [DOI: 10.1002/anie.201903117] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Kyosuke Matsumoto
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Shunsuke Kusaba
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yuya Tanaka
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yoshihisa Sei
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Kazushi Aritani
- Department of Applied ChemistryChuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Masa‐aki Haga
- Department of Applied ChemistryChuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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48
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Matsumoto K, Kusaba S, Tanaka Y, Sei Y, Akita M, Aritani K, Haga M, Yoshizawa M. A Peanut‐Shaped Polyaromatic Capsule: Solvent‐Dependent Transformation and Electronic Properties of a Non‐Contacted Fullerene Dimer. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kyosuke Matsumoto
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Shunsuke Kusaba
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yuya Tanaka
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Yoshihisa Sei
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Kazushi Aritani
- Department of Applied ChemistryChuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Masa‐aki Haga
- Department of Applied ChemistryChuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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49
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McTernan CT, Ronson TK, Nitschke JR. Post-assembly Modification of Phosphine Cages Controls Host–Guest Behavior. J Am Chem Soc 2019; 141:6837-6842. [DOI: 10.1021/jacs.9b02604] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Charlie T. McTernan
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Tanya K. Ronson
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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50
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