1
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Lee CK, Gangadharappa C, Fahrenbach AC, Kim DJ. Harnessing Radicals: Advances in Self-Assembly and Molecular Machinery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2408271. [PMID: 39177115 DOI: 10.1002/adma.202408271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/25/2024] [Indexed: 08/24/2024]
Abstract
Radicals, with their unpaired electrons, exhibit unique chemical and physical properties that have long intrigued chemists. Despite early skepticism about their stability, the discovery of persistent radicals has opened new possibilities for molecular interactions. This review examines the mechanisms and applications of radically driven self-assembly, focusing on key motifs such as naphthalene diimides, tetrathiafulvalenes, and viologens, which serve as models for radical assembly. The potential of radical interactions in the development of artificial molecular machines (AMMs) are also discussed. These AMMs, powered by radical-radical interactions, represent significant advancements in non-equilibrium chemistry, mimicking the functionalities of biological systems. From molecular switches to ratchets and pumps, the versatility and unique properties of radically powered AMMs are highlighted. Additionally, the applications of radical assembly in materials science are explored, particularly in creating smart materials with redox-responsive properties. The review concludes by comparing AMMs to biological molecular machines, offering insights into future directions. This overview underscores the impact of radical chemistry on molecular assembly and its promising applications in both synthetic and biological systems.
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Affiliation(s)
| | | | - Albert C Fahrenbach
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
- Australian Centre for Astrobiology, University of New South Wales, Sydney, NSW, 2052, Australia
- UNSW RNA Institute, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Dong Jun Kim
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
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2
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Pang XY, Zhou H, Xie X, Jiang W, Yang Y, Sessler JL, Gong HY. 1,3,5-2,4,6-Functionalized Benzene Molecular Cage: An Environmentally Responsive Scaffold that Supports Hierarchical Superstructures. Angew Chem Int Ed Engl 2024; 63:e202407805. [PMID: 38870085 DOI: 10.1002/anie.202407805] [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: 04/24/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/15/2024]
Abstract
New stimulus-responsive scaffolds are of interest as constituents of hierarchical supramolecular ensembles. 1,3,5-2,4,6-Functionalized, facially segregated benzene moieties have a time-honored role as building blocks for host molecules. However, their user as switchable motifs in the construction of multi-component supramolecular structures remains poorly explored. Here, we report a molecular cage 1, which consists of a bent anthracene dimer 3 paired with 1,3,5-tris(aminomethyl)-2,4,6-triethylbenzene 2. As the result of the pH-induced ababab↔bababa isomerization of the constituent-functionalized benzene units derived from 2, this cage can reversibly convert between an open state and a closed form, both in solution and in the solid state. Cage 1 was used to create stimuli-responsive hierarchical superstructures, namely Russian doll-like complexes with [K⊂18-crown-6⊂1]+ and [K⊂cryptand-222⊂1]+. The reversible assembly and disassembly of these superstructures could be induced by switching cage 1 from its open to closed form. The present study thus provides an unusual example where pH-triggered conformation motion within a cage-like scaffold is used to control the formation and disassociation of hierarchical ensembles.
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Affiliation(s)
- Xin-Yu Pang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Hang Zhou
- Department of Chemistry, The University of Hong Kong, Hong Kong, P. R. China
| | - Xiaojiang Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Wei Jiang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Yinhua Yang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Jonathan L Sessler
- College of Chemistry, The University of Texas at Austin, Austin, Texas, 78712-1224, United States
| | - Han-Yuan Gong
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
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3
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Fan Y, He J, Guo S, Jiang H. Host-Guest Chemistry in Binary and Ternary Complexes Utilizing π-Conjugated Carbon Nanorings. Chempluschem 2024; 89:e202300536. [PMID: 38123532 DOI: 10.1002/cplu.202300536] [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: 09/23/2023] [Revised: 12/12/2023] [Accepted: 12/20/2023] [Indexed: 12/23/2023]
Abstract
The carbon nanorings, possessing a radial π system, have garnered significant attention primarily due to their size-dependent photophysical properties and the presence of a unique curved π-conjugated cavity. This is evidenced by the rapid proliferation of publications. Furthermore, the integration of building blocks into CPP skeletons can confer [n]CPPs with novel and exceptional photophysical and electronic characteristics, as well as chiral properties and host-guest interactions, thereby augmenting the diversity of [n]CPPs. Notably, the curved π surface structures and concave cavity of carbon nanorings enable them to host aromatic or non-aromatic guests with a complementarily curved surface, resulting in interesting binary or ternary complexes. This review provides a comprehensive treatment of literature reports on binary and ternary complexes, focusing on both their host-guest interactions and properties. It is important to note that the scope of this review is limited to host-guest chemistry in binary and ternary complexes based on π-conjugated carbon nanorings.
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Affiliation(s)
- Yanqing Fan
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Jing He
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Shengzhu Guo
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Hua Jiang
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
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4
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Guo S, Liu L, Su F, Yang H, Liu G, Fan Y, He J, Lian Z, Li X, Guo W, Chen X, Jiang H. Monitoring Hierarchical Assembly of Ring-in-Ring and Russian Doll Complexes Based on Carbon Nanoring by Förster Resonance Energy Transfer. JACS AU 2024; 4:402-410. [PMID: 38425918 PMCID: PMC10900207 DOI: 10.1021/jacsau.3c00720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 03/02/2024]
Abstract
We presented the construction of the ring-in-ring and Russian doll complexes on the basis of triptycene-derived carbon nanoring (TP-[12]CPP), which not only acts as a host for pillar[5]arene (P5A) but also serves as an energy donor for building Förster resonance energy transfer (FRET) systems. We also demonstrated that their hierarchical assembly processes could be efficiently monitored in real time using FRET. NMR, UV-vis and fluorescence, and mass spectroscopy analyses confirmed the successful encapsulation of the guests P5A/P5A-An by TP-[12]CPP, facilitated by C-H···π and ···π interactions, resulting in the formation of a distinct ring-in-ring complex with a binding constant of Ka = 2.23 × 104 M-1. The encapsulated P5A/P5A-An can further reverse its role to be a host for binding energy acceptors to form Russian doll complexes, as evidenced by the occurrence of FRET and mass spectroscopy analyses. The apparent binding constant of the Russian doll complexes was up to 3.6 × 104 M-1, thereby suggesting an enhanced synergistic effect. Importantly, the Russian doll complexes exhibited both intriguing one-step and sequential FRET dependent on the subcomponent P5A/P5A-An during hierarchical assembly, reminiscent of the structure and energy transfer of the light-harvesting system presented in purple bacteria.
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Affiliation(s)
- Shengzhu Guo
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Lin Liu
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Feng Su
- College
of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
| | - Huiji Yang
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Guoqin Liu
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Yanqing Fan
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Jing He
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Zhe Lian
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Xiaonan Li
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Weijie Guo
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Xuebo Chen
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Hua Jiang
- College
of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
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5
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Zeng F, Tang LL, Ding MH, Dessie W. Giant Cavity Macrocycle: Synthesis, Structure, and Its Complexation with Pagoda[5]arene. Org Lett 2023; 25:6290-6294. [PMID: 37578269 DOI: 10.1021/acs.orglett.3c02107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
A novel stretched hexagon structure naphthalene diimides-extended-pillar[6]arene 1 with a giant cavity size of 18.769 Å in width and 17.109 Å in height is reported. 1 exhibits highly selective binding of pagoda[5]arene compared to pillar[5]arene and prism[5]arene. Size matching and charge transfer interactions play a key role in the formation of the ring-in-ring stable complex.
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Affiliation(s)
- Fei Zeng
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China
| | - Lin-Li Tang
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China
| | - Man-Hua Ding
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China
| | - Wubliker Dessie
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China
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6
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Chen T, Zhao Y, Dang LL, Zhang TT, Lu XL, Chai YH, Lu MY, Aznarez F, Ma LF. Self-Assembly and Photothermal Conversion of MetallaRussian Doll and Metalla[2]catenanes Induced via Multiple Stacking Interactions. J Am Chem Soc 2023; 145:18036-18047. [PMID: 37459092 DOI: 10.1021/jacs.3c05720] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
A variety of organometallic supramolecular architectures have been constructed over the past decades and their properties were also explored via different strategies. However, the synthesis of metalla-Russian doll is still a fascinating challenge. Herein, a series of new coordination supramolecular complexes, including a metalla-Russian doll, metalla[2]catenanes, and metallarectangles, were synthesized by using meticulously selected Cp*Rh (Cp* = η5-C5Me5) building units (E1, E2, and E3) and three rigid anthracylpyridine ligands (L1, L2, and L3) via a self-assembly strategy. While the combination of the short ligand L1 and E1 or E2 generated two metallarectangles, the longer ligand L2 containing an alkynyl group resulted in two new [2]catenanes, most likely due to which the strong electron-donating effect of alkynyl groups causes self-accumulation. Interestingly, an unusual Russian doll assembly was obtained through the reaction of L3 and E3 based on sextuple π···π stacking interactions. Furthermore, the dynamic structural conversion between [2]catenanes and the corresponding metallarectangles could be observed through concentration-, solvent-, and guest-induced effects. The [2]catenane complexes 4b displayed efficient photothermal conversion efficiency in solution (20.2%), in comparison with other organometallic macrocycles. We believe that π···π stacking interactions generate active nonradiative pathways and promote radiative photodeactivation pathways. This study proves the versatility of half-sandwich building units, not only to build complicated supramolecular topologies but also in effective functional materials for various appealing applications.
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Affiliation(s)
- Tian Chen
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Ying Zhao
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Li-Long Dang
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, P. R. China
| | - Ting-Ting Zhang
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Xiao-Li Lu
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Yin-Hang Chai
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Ming-Yu Lu
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Francisco Aznarez
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, P. R. China
| | - Lu-Fang Ma
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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7
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Kessler BJO, Mansoor IF, Wozniak DI, Emge TJ, Lipke MC. Controlling Intramolecular and Intermolecular Electronic Coupling of Radical Ligands in a Series of Cobaltoviologen Complexes. J Am Chem Soc 2023; 145:15924-15935. [PMID: 37460450 DOI: 10.1021/jacs.3c03725] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Controlling electronic coupling between multiple redox sites is of interest for tuning the electronic properties of molecules and materials. While classic mixed-valence (MV) systems are highly tunable, e.g., via the organic bridges connecting the redox sites, metal-bridged MV systems are difficult to control because the electronics of the metal cannot usually be altered independently of redox-active moieties embedded in its ligands. Herein, this limitation was overcome by varying the donor strengths of ancillary ligands in a series of cobalt complexes without directly perturbing the electronics of viologen-like redox sites bridged by the cobalt ions. The cobaltoviologens [1X-Co]n+ feature four 4-X-pyridyl donor groups (X = CO2Me, Cl, H, Me, OMe, NMe2) that provide gradual electronic tuning of the bridging CoII centers, while a related complex [2-Co]n+ with NHC donors supports exclusively CoIII states even upon reduction of the viologen units. Electrochemistry and IVCT band analysis indicate that the MV states of these complexes have electronic structures ranging from fully localized ([2-Co]4+; Robin-Day Class I) to fully delocalized ([1CO2Me-Co]3+; Class III) descriptions, demonstrating unprecedented control over electronic coupling without changing the identity of the redox sites or bridging metal. Additionally, single-crystal XRD characterization of the homovalent complexes [1H-Co]2+ and [1H-Zn]2+ revealed radical-pairing interactions between the viologen ligands of adjacent complexes, representing a type of through-space electronic coupling commonly observed for organic viologen radicals but never before seen in metalloviologens. The extended solid-state packing of these complexes produces 3D networks of radical π-stacking interactions that impart unexpected mechanical flexibility to these crystals.
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Affiliation(s)
- Brice J O Kessler
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Iram F Mansoor
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Derek I Wozniak
- 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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8
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Wang Z, Mei L, Guo C, Huang S, Shi WQ, Li X, Feng W, Li X, Yang C, Yuan L. Supramolecular Shish Kebabs: Higher Order Dimeric Structures from Ring-in-Rings Complexes with Conformational Adaptivity. Angew Chem Int Ed Engl 2023; 62:e202216690. [PMID: 36652350 DOI: 10.1002/anie.202216690] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023]
Abstract
Use of abiotic chemical systems for understanding higher order superstructures is challenging. Here we report a ring-in-ring(s) system comprising a hydrogen-bonded macrocycle and cyclobis(paraquat-o-phenylene) tetracation (o-Box) or cyclobis(paraquat-p-phenylene) tetracation (CBPQT4+ , p-Box) that assembles to construct discrete higher order structures with adaptive conformation. As indicated by mass spectrometry, computational modeling, NMR spectroscopy, and single-crystal X-ray diffraction analysis, this ring-in-ring(s) system features the box-directed aggregation of multiple macrocycles, leading to generation of several stable species such as H4G (1 a/o-Box) and H5G (1 a/o-Box). Remarkably, a dimeric shish-kebab-like ring-in-rings superstructure H7G2 (1 a/o-Box) or H8G2 (1 a/p-Box) is formed from the coaxial stacking of two ring-in-rings units. The formation of such unique dimeric superstructures is attributed to the large π-surface of this 2D planar macrocycle and the conformational variation of both host and guest.
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Affiliation(s)
- Zhenwen Wang
- College of Chemistry, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu, Sichuan, 610064, China) (The first email address should be
| | - Lei Mei
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Chenxing Guo
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518071, China
| | - Song Huang
- College of Chemistry, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu, Sichuan, 610064, China) (The first email address should be
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaowei Li
- College of Chemistry, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu, Sichuan, 610064, China) (The first email address should be
| | - Wen Feng
- College of Chemistry, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu, Sichuan, 610064, China) (The first email address should be
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518071, China.,University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen University, Shenzhen, Guangdong, 518055, China
| | - Cheng Yang
- College of Chemistry, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu, Sichuan, 610064, China) (The first email address should be
| | - Lihua Yuan
- College of Chemistry, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu, Sichuan, 610064, China) (The first email address should be
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9
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Lu S, Morrow DJ, Li Z, Guo C, Yu X, Wang H, Schultz JD, O'Connor JP, Jin N, Fang F, Wang W, Cui R, Chen O, Su C, Wasielewski MR, Ma X, Li X. Encapsulating Semiconductor Quantum Dots in Supramolecular Cages Enables Ultrafast Guest-Host Electron and Vibrational Energy Transfer. J Am Chem Soc 2023; 145:5191-5202. [PMID: 36745391 DOI: 10.1021/jacs.2c11981] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the field of supramolecular chemistry, host-guest systems have been extensively explored to encapsulate a wide range of substrates, owing to emerging functionalities in nanoconfined space that cannot be achieved in dilute solutions. However, host-guest chemistry is still limited to encapsulation of small guests. Herein, we construct a water-soluble metallo-supramolecular hexagonal prism with a large hydrophobic cavity by anchoring multiple polyethylene glycol chains onto the building blocks. Then, assembled prisms are able to encapsulate quantum dots (QDs) with diameters of less than 5.0 nm. Furthermore, we find that the supramolecular cage around each QD strongly modifies the photophysics of the QD by universally increasing the rates of QD relaxation processes via ultrafast electron and vibrational energy transfer. Taken together, these efforts expand the scope of substrates in host-guest systems and provide a new approach to tune the optical properties of QDs.
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Affiliation(s)
- Shuai Lu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China.,Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Darien J Morrow
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Zhikai Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Chenxing Guo
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Xiujun Yu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Heng Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Jonathan D Schultz
- Department of Chemistry and Institute for Sustainability and Energy at Northwestern, Northwestern University, Evanston, Illinois 60208, United States
| | - James P O'Connor
- Department of Chemistry and Institute for Sustainability and Energy at Northwestern, Northwestern University, Evanston, Illinois 60208, United States
| | - Na Jin
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Fang Fang
- Instrumental Analysis Center, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Wu Wang
- Department of Physics, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Ran Cui
- Key Laboratory of Analytical Chemistry for Biology and Medicine, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Ou Chen
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Chenliang Su
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Michael R Wasielewski
- Department of Chemistry and Institute for Sustainability and Energy at Northwestern, Northwestern University, Evanston, Illinois 60208, United States
| | - Xuedan Ma
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Center for Molecular Quantum Transduction, Northwestern-Argonne Institute of Science and Engineering, 2205 Tech Drive, Evanston, Illinois 60208, United States.,Consortium for Advanced Science and Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China.,Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen University, Shenzhen, Guangdong 518055, China
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10
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Yang X, Liu S. Cationic cyclophanes-in-cucurbit[10]uril: host-in-host complexes showing cooperative recognition towards neutral phenol guests. Supramol Chem 2023. [DOI: 10.1080/10610278.2023.2170233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Xiran Yang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, P.R. China
| | - Simin Liu
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, P.R. China
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11
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Chen X, Chen H, Fraser Stoddart J. The Story of the Little Blue Box: A Tribute to Siegfried Hünig. Angew Chem Int Ed Engl 2023; 62:e202211387. [PMID: 36131604 PMCID: PMC10099103 DOI: 10.1002/anie.202211387] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Indexed: 02/02/2023]
Abstract
The tetracationic cyclophane, cyclobis(paraquat-p-phenylene), also known as the little blue box, constitutes a modular receptor that has facilitated the discovery of many host-guest complexes and mechanically interlocked molecules during the past 35 years. Its versatility in binding small π-donors in its tetracationic state, as well as forming trisradical tricationic complexes with viologen radical cations in its doubly reduced bisradical dicationic state, renders it valuable for the construction of various stimuli-responsive materials. Since the first reports in 1988, the little blue box has been featured in over 500 publications in the literature. All this research activity would not have been possible without the seminal contributions carried out by Siegfried Hünig, who not only pioneered the syntheses of viologen-containing cyclophanes, but also revealed their rich redox chemistry in addition to their ability to undergo intramolecular π-dimerization. This Review describes how his pioneering research led to the design and synthesis of the little blue box, and how this redox-active host evolved into the key component of molecular shuttles, switches, and machines.
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Affiliation(s)
- Xiao‐Yang Chen
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIllinois 60208USA
| | - Hongliang Chen
- Stoddart Institute of Molecular ScienceDepartment of ChemistryZhejiang UniversityHangzhou310027China
- ZJU-Hangzhou Global Scientific and Technological Innovation CenterHangzhou311215China
| | - J. Fraser Stoddart
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIllinois 60208USA
- Stoddart Institute of Molecular ScienceDepartment of ChemistryZhejiang UniversityHangzhou310027China
- ZJU-Hangzhou Global Scientific and Technological Innovation CenterHangzhou311215China
- School of ChemistryUniversity of New South WalesSydneyNSW 2052Australia
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12
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Jiao Y, Mao H, Qiu Y, Wu G, Chen H, Zhang L, Han H, Li X, Zhao X, Tang C, Chen XY, Feng Y, Stern CL, Wasielewski MR, Stoddart JF. Mechanical Bond-Assisted Full-Spectrum Investigation of Radical Interactions. J Am Chem Soc 2022; 144:23168-23178. [DOI: 10.1021/jacs.2c10882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Haochuan Mao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yunyan Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Guangcheng Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hongliang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Han Han
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xuesong Li
- 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
| | - Chun Tang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xiao-Yang Chen
- 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
| | - Charlotte L. Stern
- 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
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - J. Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- 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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13
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Sawanaka Y, Yamashina M, Ohtsu H, Toyota S. A self-complementary macrocycle by a dual interaction system. Nat Commun 2022; 13:5648. [PMID: 36163173 PMCID: PMC9512892 DOI: 10.1038/s41467-022-33357-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 09/14/2022] [Indexed: 11/23/2022] Open
Abstract
Self-complementary assembly is one of the most promising phenomena for the formation of discrete assemblies, e.g., proteins and capsids. However, self-complementary assembly based on multiple host-guest systems has been scarcely reported due to the difficulty in controlling each assembly. Herein, we report a dual interaction system in which the key assembly direction is well regulated by both π-π stacking and hydrogen bonding to construct a self-complementary macrocycle. Continuous host-guest behavior of anthracene-based molecular tweezers during crystallization leads to successful construction of a cyclic hexamer, which is reminiscent of Kekulé’s monkey model. Furthermore, the cyclic hexamer in a tight and triple-layered fashion shows hierarchical assembly into cuboctahedron and rhombohedral assemblies in the presence of trifluoroacetic acid. Our findings would be potentially one of metal-free strategies for constructing anthracene-based supramolecular assemblies with higher-order structure. In nature, HIV capsid consists of single class of protein unit by self-complementarity. Here, the authors find that a molecular tweezer forms a cyclic hexamer by its continuous host-guest behavior, and constructs a large cuboctahedron by hierarchical assembly.
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Affiliation(s)
- Yuta Sawanaka
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Tokyo, Japan
| | - Masahiro Yamashina
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Tokyo, Japan.
| | - Hiroyoshi Ohtsu
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Tokyo, Japan
| | - Shinji Toyota
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Tokyo, Japan.
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14
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Tan L, Zhou JH, Sun JK, Yuan J. Electrostatically cooperative host-in-host of metal cluster ⊂ ionic organic cages in nanopores for enhanced catalysis. Nat Commun 2022; 13:1471. [PMID: 35304468 PMCID: PMC8933400 DOI: 10.1038/s41467-022-29031-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 02/18/2022] [Indexed: 11/13/2022] Open
Abstract
The construction of hierarchically nanoporous composite for high-performance catalytic application is still challenging. In this work, a series of host-in-host ionic porous materials are crafted by encapsulating ionic organic cages into a hyper-crosslinked, oppositely charged porous poly(ionic liquid) (PoPIL) through an ion pair-directed assembly strategy. Specifically, the cationic cage (C-Cage) as the inner host can spatially accommodate a functional Au cluster, forming a [Au⊂C-Cage+]⊂PoPIL- supramolecular composite. This dual-host molecular hierarchy enables a charge-selective substrate sorting effect to the Au clusters, which amplifies their catalytic activity by at least one order of magnitude as compared to Au confined only by C-Cage as the mono-host (Au⊂C-Cage+). Moreover, we demonstrate that such dual-host porous system can advantageously immobilize electrostatically repulsive Au⊂C-Cage+ and cationic ferrocene co-catalyst (Fer+) together into the same microcompartments, and synergistically speed up the enzyme-like tandem reactions by channelling the substrate to the catalytic centers via nanoconfinement.
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Affiliation(s)
- Liangxiao Tan
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, P. R. China
- Department of Materials and Environmental Chemistry, Stockholm University, 10691, Stockholm, Sweden
| | - Jun-Hao Zhou
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, P. R. China
| | - Jian-Ke Sun
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, P. R. China.
| | - Jiayin Yuan
- Department of Materials and Environmental Chemistry, Stockholm University, 10691, Stockholm, Sweden.
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15
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Yao C, Lin H, Daly B, Xu Y, Singh W, Gunaratne HQN, Browne WR, Bell SEJ, Nockemann P, Huang M, Kavanagh P, de Silva AP. Taming Tris(bipyridine)ruthenium(II) and Its Reactions in Water by Capture/Release with Shape-Switchable Symmetry-Matched Cyclophanes. J Am Chem Soc 2022; 144:4977-4988. [PMID: 35274938 PMCID: PMC9097486 DOI: 10.1021/jacs.1c13028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
![]()
Electron/proton
transfers in water proceeding from ground/excited
states are the elementary reactions of chemistry. These reactions
of an iconic class of molecules—polypyridineRu(II)—are
now controlled by capturing or releasing three of them with hosts
that are shape-switchable. Reversible erection or collapse of the
host walls allows such switchability. Some reaction rates are suppressed
by factors of up to 120 by inclusive binding of the metal complexes.
This puts nanometric coordination chemistry in a box that can be open
or shut as necessary. Such second-sphere complexation can allow considerable
control to be exerted on photocatalysis, electrocatalysis, and luminescent
sensing involving polypyridineRu(II) compounds. The capturing states
of hosts are symmetry-matched to guests for selective binding and
display submicromolar affinities. A perching complex, which is an
intermediate state between capturing and releasing states, is also
demonstrated.
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Affiliation(s)
- Chaoyi Yao
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Hongyu Lin
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Brian Daly
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Yikai Xu
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Warispreet Singh
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland.,Hub for Biotechnology in the Built Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, U.K
| | - H Q Nimal Gunaratne
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Wesley R Browne
- Stratingh Institute for Chemistry, University of Groningen, FSE, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Steven E J Bell
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Peter Nockemann
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Meilan Huang
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - Paul Kavanagh
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
| | - A Prasanna de Silva
- School of Chemistry and Chemical Engineering, Queen's University, Belfast BT9 5AG, Northern Ireland
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16
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Abstract
Molecular recognition1-4 and supramolecular assembly5-8 cover a broad spectrum9-11 of non-covalently orchestrated phenomena between molecules. Catalysis12 of such processes, however, unlike that for the formation of covalent bonds, is limited to approaches13-16 that rely on sophisticated catalyst design. Here we establish a simple and versatile strategy to facilitate molecular recognition by extending electron catalysis17, which is widely applied18-21 in synthetic covalent chemistry, into the realm of supramolecular non-covalent chemistry. As a proof of principle, we show that the formation of a trisradical complex22 between a macrocyclic host and a dumbbell-shaped guest-a molecular recognition process that is kinetically forbidden under ambient conditions-can be accelerated substantially on the addition of catalytic amounts of a chemical electron source. It is, therefore, electrochemically possible to control23 the molecular recognition temporally and produce a nearly arbitrary molar ratio between the substrates and complexes ranging between zero and the equilibrium value. Such kinetically stable supramolecular systems24 are difficult to obtain precisely by other means. The use of the electron as a catalyst in molecular recognition will inspire chemists and biologists to explore strategies that can be used to fine-tune non-covalent events, control assembly at different length scales25-27 and ultimately create new forms of complex matter28-30.
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17
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Janiak A, Gajewy J, Szymkowiak J, Gierczyk B, Kwit M. Specific Noncovalent Association of Truncated exo-Functionalized Triangular Homochiral Isotrianglimines through Head-to-Head, Tail-to-Tail, and Honeycomb Supramolecular Motifs. J Org Chem 2022; 87:2356-2366. [PMID: 35029991 PMCID: PMC8902749 DOI: 10.1021/acs.joc.1c02238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chiral isotrianglimines were synthesized by the [3 + 3] cyclocondensation of (R,R)-1,2-diaminocyclohexane with C5-substituted isophthalaldehyde derivatives. The substituent's steric and electronic demands and the guest molecules' nature have affected the conformation of individual macrocycles and their propensity to form supramolecular architectures. In the crystal, the formation of a honeycomb-like packing arrangement of the simplest isotrianglimine was promoted by the presence of toluene or para-xylene molecules. A less symmetrical solvent molecule might force this arrangement to change. Polar substituents present in the macrocycle skeleton have enforced the self-association of isotrianglimines in the form of tail-to-tail dimers. These dimers could be further arranged in higher-order structures of the head-to-head type, which were held together by the solvent molecules. Non-associating isotrianglimine formed a container that accommodated acetonitrile molecules in its cavity. The calculated dimerization energies have indicated a strong preference for the formation of tail-to-tail dimers over those of the capsule type.
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Affiliation(s)
- Agnieszka Janiak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61- 614 Poznań, Poland
| | - Jadwiga Gajewy
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61- 614 Poznań, Poland
| | - Joanna Szymkowiak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61- 614 Poznań, Poland
| | - Błażej Gierczyk
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61- 614 Poznań, Poland
| | - Marcin Kwit
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61- 614 Poznań, Poland
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18
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Chen X, Mao H, Feng Y, Cai K, Shen D, Wu H, Zhang L, Zhao X, Chen H, Song B, Jiao Y, Wu Y, Stern CL, Wasielewski MR, Stoddart JF. Radically Enhanced Dual Recognition. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiao‐Yang Chen
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Haochuan Mao
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Institute for Sustainability and Energy at Northwestern Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Yuanning Feng
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Kang Cai
- Department of Chemistry Nankai University 94 Weijin Road, Nankai District Tianjin 300071 China
| | - Dengke Shen
- Institutes of Physical Science and Information Technology Anhui University Hefei 230601 China
| | - Huang Wu
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Long Zhang
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Xingang Zhao
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Hongliang Chen
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Bo Song
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Yang Jiao
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Yong Wu
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Charlotte L. Stern
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Michael R. Wasielewski
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Institute for Sustainability and Energy at Northwestern Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - J. Fraser Stoddart
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- School of Chemistry University of New South Wales Sydney NSW 2052 Australia
- Stoddart Institute of Molecular Science Department of Chemistry Zhejiang University Hangzhou 310027 China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311215 China
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19
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Shimoyama D, Baser-Kirazli N, Lalancette RA, Jäkle F. Electrochromic Polycationic Organoboronium Macrocycles with Multiple Redox States. Angew Chem Int Ed Engl 2021; 60:17942-17946. [PMID: 34111328 DOI: 10.1002/anie.202105852] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/09/2021] [Indexed: 12/14/2022]
Abstract
Polycationic macrocycles are attractive as they display unique molecular switching capabilities arising from their redox properties. Although diverse polycationic macrocycles have been developed, those based on cationic boron systems remain very limited. We present herein the development of novel polycationic macrocycles by introducing organoboronium moieties into a conjugated organoboron macrocyclic framework. These macrocycles consist of four bipyridylboronium units that are connected by fluorene and either electron-deficient arylborane or electron-rich arylamine moieties. Electrochemical studies reveal that the macrocycles undergo reversible multi-step redox processes with transfer of up to 10 electrons. Switchable electrochromic behavior is demonstrated via spectroelectrochemical studies and the observed color changes are rationalized by correlation with computed electronic transitions using DFT methods.
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Affiliation(s)
- Daisuke Shimoyama
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, NJ, 07102, USA
| | - Nurcan Baser-Kirazli
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, NJ, 07102, USA
| | - Roger A Lalancette
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, NJ, 07102, USA
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, NJ, 07102, USA
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20
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Shimoyama D, Baser‐Kirazli N, Lalancette RA, Jäkle F. Electrochromic Polycationic Organoboronium Macrocycles with Multiple Redox States. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105852] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daisuke Shimoyama
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Nurcan Baser‐Kirazli
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Roger A. Lalancette
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Frieder Jäkle
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
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21
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Chen XY, Mao H, Feng Y, Cai K, Shen D, Wu H, Zhang L, Zhao X, Chen H, Song B, Jiao Y, Wu Y, Stern CL, Wasielewski MR, Stoddart JF. Radically Enhanced Dual Recognition. Angew Chem Int Ed Engl 2021; 60:25454-25462. [PMID: 34342116 DOI: 10.1002/anie.202109647] [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: 07/19/2021] [Indexed: 11/08/2022]
Abstract
Complexation between a viologen radical cation (V.+ ) and cyclobis(paraquat-p-phenylene) diradical dication (CBPQT2(.+) ) has been investigated and utilized extensively in the construction of mechanically interlocked molecules (MIMs) and artificial molecular machines (AMMs). The selective recognition of a pair of V.+ using radical-pairing interactions, however, remains a formidable challenge. Herein, we report the efficient encapsulation of two methyl viologen radical cations (MV.+ ) in a size-matched bisradical dicationic host - namely, cyclobis(paraquat-2,6-naphthalene)2(.+) , i.e., CBPQN2(.+) . Central to this dual recognition process was the choice of 2,6-bismethylenenaphthalene linkers for incorporation into the bisradical dicationic host. They provide the space between the two bipyridinium radical cations in CBPQN2(.+) suitable for binding two MV.+ with relatively short (3.05-3.25 Å) radical-pairing distances. The size-matched bisradical dicationic host was found to exhibit highly selective and cooperative association with the two MV.+ in MeCN at room temperature. The formation of the tetrakisradical tetracationic inclusion complex - namely, [(MV)2 ⊂CBPQN]4( .+) - in MeCN was confirmed by VT 1 H NMR, as well as by EPR spectroscopy. The solid-state superstructure of [(MV)2 ⊂CBPQN]4( .+) reveals an uneven distribution of the binding distances (3.05, 3.24, 3.05 Å) between the three different V.+ , suggesting that localization of the radical-pairing interactions has a strong influence on the packing of the two MV.+ inside the bisradical dicationic host. Our findings constitute a rare example of binding two radical guests with high affinity and cooperativity using host-guest radical-pairing interactions. Moreover, they open up possibilities of harnessing the tetrakisradical tetracationic inclusion complex as a new, orthogonal and redox-switchable recognition motif for the construction of MIMs and AMMs.
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Affiliation(s)
- Xiao-Yang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Haochuan Mao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.,Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Yuanning Feng
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Kang Cai
- Department of Chemistry, Nankai University, 94 Weijin Road, Nankai District, Tianjin, 300071, China
| | - Dengke Shen
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
| | - Huang Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Xingang Zhao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Hongliang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Bo Song
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Yong Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Charlotte L Stern
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Michael R Wasielewski
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.,Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.,School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia.,Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China.,ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, China
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22
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Tang M, Liang Y, Lu X, Miao X, Jiang L, Liu J, Bian L, Wang S, Wu L, Liu Z. Molecular-strain engineering of double-walled tetrahedra. Chem 2021. [DOI: 10.1016/j.chempr.2021.05.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Observation of a 3-in-1 Russian-doll-like Complex in Solution. Chem Res Chin Univ 2021. [DOI: 10.1007/s40242-021-1146-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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25
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Liu D, Li K, Chen M, Zhang T, Li Z, Yin JF, He L, Wang J, Yin P, Chan YT, Wang P. Russian-Doll-Like Molecular Cubes. J Am Chem Soc 2021; 143:2537-2544. [PMID: 33378184 DOI: 10.1021/jacs.0c11703] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Nanosized cage-within-cage compounds represent a synergistic molecular self-assembling form of three-dimensional architecture that has received particular research focus. Building multilayered ultralarge cages to simulate complicated virus capsids is believed to be a tough synthetic challenge. Here, we synthesize two large double-shell supramolecular cages by facile self-assembly of presynthesized metal-organic hexatopic terpyridine ligands with metal ions. Differing from the mixture of prisms formed from the inner tritopic ligand, the redesigned metal-organic hexatopic ligands bearing high geometric constraints that led to the exclusive formation of discrete double-shell structures. These two unique nested cages are composed of inner cubes (5.1 nm) and outer huge truncated cubes (12.0 and 13.2 nm) with six large bowl-shape subcages distributed on six faces. The results with molecular weights of 75 232 and 77 667 Da were among the largest synthetic cage-in-cage supramolecules reported to date. The composition, size and shape were unambiguously characterized by a combination of 1H NMR, DOSY, ESI-MS, TWIM-MS, TEM, AFM, and SAXS. This work provides an interesting model for functional recognition, delivery, and detection of various guest molecules in the field of supramolecular materials.
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Affiliation(s)
- Die Liu
- 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
| | - 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
| | - Mingzhao Chen
- 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
| | - Tingting Zhang
- 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
| | - 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
| | - Jia-Fu Yin
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Lipeng He
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Jun 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
| | - Panchao Yin
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Yi-Tsu Chan
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Pingshan Wang
- 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.,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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26
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Cai K, Cui B, Song B, Wang H, Qiu Y, Jones LO, Liu W, Shi Y, Vemuri S, Shen D, Jiao T, Zhang L, Wu H, Chen H, Jiao Y, Wang Y, Stern CL, Li H, Schatz GC, Li X, Stoddart JF. Radical Cyclic [3]Daisy Chains. Chem 2021. [DOI: 10.1016/j.chempr.2020.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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27
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Lu Y, Liu D, Cui Z, Lin Y, Jin G. Adaptive
Self‐Assembly
and
Induced‐Fit
Interconversions between Molecular Borromean Rings, Russian Dolls and
Ring‐in‐Ring
Complexes
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000406] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ye Lu
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Dong Liu
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Zheng Cui
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Yue‐Jian Lin
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Guo‐Xin Jin
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University 2005 Songhu Road Shanghai 200438 China
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28
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Chen XY, Shen D, Cai K, Jiao Y, Wu H, Song B, Zhang L, Tan Y, Wang Y, Feng Y, Stern CL, Stoddart JF. Suit[3]ane. J Am Chem Soc 2020; 142:20152-20160. [PMID: 33180476 DOI: 10.1021/jacs.0c09896] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Suitanes are a class of mechanically interlocked molecules (MIMs) that consist of two components: a body with limbs protruding outward and a suit that fits appropriately around it, so that there is no easy way for the suit to be removed from the body. Herein, we report the synthesis and characterization of a suit[3]ane, which contains a benzotrithiophene derivative (THBTT) with three protruding hexyl chains as the body and a 3-fold symmetric, extended pyridinium-based cage, namely, HexaCage6+, as the suit. Central to its realization is effective templation, provided by THBTT during cage formation, an observation that has been supported by the strong binding constant between benzotrithiophene (BTT) and the empty cage. The solid-state structure of the suit[3]ane reveals that the body is confined within the suit's cavity with its alkyl chains protruding outward through the orifices in the cage. Notably, such a seemingly unstable molecule, having three flexible alkyl chains as its only protruding limbs, does not dissociate after prolonged heating in CD3CN at 100 °C under pressure for 7 days. No evidence for guest exchange with the host was observed at this temperature in a 2:1 mixture of THBTT and HexaCage6+ in CD3CN. The results indicate that flexible protruding limbs are sufficient for a suit[3]ane to remain mechanically stable even at high temperatures in solution.
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Affiliation(s)
- Xiao-Yang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Dengke Shen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Kang Cai
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Huang Wu
- 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
| | - Yu Tan
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yu Wang
- 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
| | - Charlotte L Stern
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
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29
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Wu H, Wang Y, Jones LO, Liu W, Song B, Cui Y, Cai K, Zhang L, Shen D, Chen XY, Jiao Y, Stern CL, Li X, Schatz GC, Stoddart JF. Ring-in-Ring(s) Complexes Exhibiting Tunable Multicolor Photoluminescence. J Am Chem Soc 2020; 142:16849-16860. [PMID: 32886881 DOI: 10.1021/jacs.0c07745] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One ring threaded by two other rings to form a non-intertwined ternary ring-in-rings motif is a challenging task in noncovalent synthesis. Constructing multicolor photoluminescence systems with tunable properties is also a fundamental research goal, which can lead to applications in multidimensional biological imaging, visual displays, and encryption materials. Herein, we describe the design and synthesis of binary and ternary ring-in-ring(s) complexes, based on an extended tetracationic cyclophane and cucurbit[8]uril. The formation of these complexes is accompanied by tunable multicolor fluorescence outputs. On mixing equimolar amounts of the cyclophane and cucurbit[8]uril, a 1:1 ring-in-ring complex is formed as a result of hydrophobic interactions associated with a favorable change in entropy. With the addition of another equivalent of cucurbit[8]uril, a 1:2 ring-in-rings complex is formed, facilitated by additional ion-dipole interactions involving the pyridinium units in the cyclophane and the carbonyl groups in cucurbit[8]uril. Because of the narrowing in the energy gaps of the cyclophane within the rigid hydrophobic cavities of cucurbit[8]urils, the binary and ternary ring-in-ring(s) complexes emit green and bright yellow fluorescence, respectively. A series of color-tunable emissions, such as sky blue, cyan, green, and yellow with increased fluorescence lifetimes, can be achieved by simply adding cucurbit[8]uril to an aqueous solution of the cyclophane. Notably, the smaller cyclobis(paraquat-p-phenylene), which contains the same p-xylylene linkers as the extended tetracationic cyclophane, does not form ring-in-ring(s) complexes with cucurbit[8]uril. The encapsulation of this extended tetracationic cyclophane by both one and two cucurbit[8]urils provides an incentive to design and synthesize more advanced supramolecular systems, as well as opening up a feasible approach toward achieving tunable multicolor photoluminescence with single chromophores.
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Affiliation(s)
- Huang Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yu Wang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Leighton O Jones
- 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
| | - Yunpeng Cui
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Kang Cai
- 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
| | - Dengke Shen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xiao-Yang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Charlotte L Stern
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, Guangdong 518055, P.R. China
| | - George C Schatz
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.,Institute for Molecular Design and Synthesis, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P.R. China
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30
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Beldjoudi Y, Atilgan A, Weber JA, Roy I, Young RM, Yu J, Deria P, Enciso AE, Wasielewski MR, Hupp JT, Stoddart JF. Supramolecular Porous Organic Nanocomposites for Heterogeneous Photocatalysis of a Sulfur Mustard Simulant. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001592. [PMID: 32602131 DOI: 10.1002/adma.202001592] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 06/01/2020] [Indexed: 06/11/2023]
Abstract
Efficient heterogeneous photosensitizing materials require both large accessible surface areas and excitons of suitable energies and with well-defined spin structures. Confinement of the tetracationic cyclophane (ExBox4+ ) within a nonporous anionic polystyrene sulfonate (PSS) matrix leads to a surface area increase of up to 225 m2 g-1 in ExBox•PSS. Efficient intersystem crossing is achieved by combining the spin-orbit coupling associated to Br heavy atoms in 1,3,5,8-tetrabromopyrene (TBP), and the photoinduced electron transfer in a TBP⊂ExBox4+ supramolecular dyad. The TBP⊂ExBox4+ complex displays a charge transfer band at 450 nm and an exciplex emission at 520 nm, indicating the formation of new mixed-electronic states. The lowest triplet state (T1 , 1.89 eV) is localized on the TBP and is close in energy with the charge separated state (CT, 2.14 eV). The homogeneous and heterogeneous photocatalytic activities of the TBP⊂ExBox4+ , for the elimination of a sulfur mustard simulant, has proved to be significantly more efficient than TBP and ExBox+4 , confirming the importance of the newly formed excited-state manifold in TBP⊂ExBox4+ for the population of the low-lying T1 state. The high stability, facile preparation, and high performance of the TBP⊂ExBox•PSS nanocomposites augur well for the future development of new supramolecular heterogeneous photosensitizers using host-guest chemistry.
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Affiliation(s)
- Yassine Beldjoudi
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Ahmet Atilgan
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Jacob A Weber
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Indranil Roy
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Ryan M Young
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Institute for Sustainability and Energy, Northwestern University, Evanston, IL, 60208, USA
| | - Jierui Yu
- Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, IL, 62901, USA
| | - Pravas Deria
- Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, IL, 62901, USA
| | - Alan E Enciso
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Michael R Wasielewski
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Institute for Sustainability and Energy, Northwestern University, Evanston, IL, 60208, USA
| | - Joseph T Hupp
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Institute for Molecular Design and Synthesis, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, China
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
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31
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Dang LL, Gao X, Lin YJ, Jin GX. Selective synthesis and structural transformation between a molecular ring-in-ring architecture and an abnormal trefoil knot. Chem Sci 2020; 11:8013-8019. [PMID: 34094170 PMCID: PMC8163296 DOI: 10.1039/d0sc02733b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/15/2020] [Indexed: 11/21/2022] Open
Abstract
The synthesis of complicated supramolecular architectures and the study of their reversible structural transformations remains a fascinating challenge in the field of supramolecular chemistry. Herein, two types of novel coordination compounds, a non-intertwined ring-in-ring assembly and an abnormal trefoil knot were constructed from a strategically selected Cp*Rh building block and a semi-rigid N,N'-bis(4-pyridylmethyl)diphthalic diimide ligand via coordination-driven self-assembly. Remarkably, the reversible transformation between the abnormal trefoil knot and the ring-in-ring assembly or the corresponding tetranuclear macrocycle could be achieved by the synergistic effects of Ag+ ion coordination and alteration of the solvent. Single-crystal X-ray crystallographic data and NMR spectroscopic experiments support the structural assignments.
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Affiliation(s)
- Li-Long Dang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200438 P. R. China
| | - Xiang Gao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200438 P. R. China
| | - Yue-Jian Lin
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200438 P. R. China
| | - Guo-Xin Jin
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200438 P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 P. R. China
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32
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Cai K, Mao H, Liu WG, Qiu Y, Shi Y, Zhang L, Shen D, Chen H, Jiao Y, Wu H, Liu Z, Feng Y, Stern CL, Wasielewski MR, Goddard WA, Stoddart JF. Highly Stable Organic Bisradicals Protected by Mechanical Bonds. J Am Chem Soc 2020; 142:7190-7197. [DOI: 10.1021/jacs.0c01989] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Kang Cai
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Haochuan Mao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Wei-Guang Liu
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Yunyan Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yi Shi
- 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
| | - Dengke Shen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hongliang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Huang Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zhichang Liu
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
| | - Yuanning Feng
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Charlotte L. Stern
- 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
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - William A. Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - J. Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Molecular Design and Synthesis, Tianjin University, 92 Weijin Road, Tianjin 300072, China
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
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33
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Mangham B, Hanson-Heine MWD, Davies ES, Wriglesworth A, George MW, Lewis W, Kays DL, McMaster J, Besley NA, Champness NR. Influence of molecular design on radical spin multiplicity: characterisation of BODIPY dyad and triad radical anions. Phys Chem Chem Phys 2020; 22:4429-4438. [PMID: 32051990 DOI: 10.1039/c9cp06427c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A strategy to create organic molecules with high degrees of radical spin multiplicity is reported in which molecular design is correlated with the behaviour of radical anions in a series of BODIPY dyads. Upon reduction of each BODIPY moiety radical anions are formed which are shown to have different spin multiplicities by electron paramagnetic resonance (EPR) spectroscopy and distinct profiles in their cyclic voltammograms and UV-visible spectra. The relationship between structure and multiplicity is demonstrated showing that the balance between singlet, biradical or triplet states in the dyads depends on relative orientation and connectivity of the BODIPY groups. The strategy is applied to the synthesis of a BODIPY triad which adopts an unusual quartet state upon reduction to its radical trianion.
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Affiliation(s)
- Barry Mangham
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK.
| | | | - E Stephen Davies
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK.
| | | | - Michael W George
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK. and Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo 315100, China
| | - William Lewis
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK.
| | - Deborah L Kays
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK.
| | - Jonathan McMaster
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK.
| | - Nicholas A Besley
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK.
| | - Neil R Champness
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK.
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34
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Wang S, Li S, Xiong J, Lin Z, Wei W, Xu Y. Near-infrared photothermal conversion of stable radicals photoinduced from a viologen-based coordination polymer. Chem Commun (Camb) 2020; 56:7399-7402. [DOI: 10.1039/d0cc02193h] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A highly stable radical photoinduced from a viologen-based coordination polymer exhibited a remarkable near-infrared photothermal effect with good recyclability.
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Affiliation(s)
- Shanshan Wang
- Key Laboratory of Cluster Science
- Ministry of Education of China
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
| | - Shuning Li
- Key Laboratory of Cluster Science
- Ministry of Education of China
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
| | - Junyu Xiong
- Key Laboratory of Cluster Science
- Ministry of Education of China
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
| | - Zhengguo Lin
- Key Laboratory of Cluster Science
- Ministry of Education of China
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
| | - Wei Wei
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- China
| | - Yanqing Xu
- Key Laboratory of Cluster Science
- Ministry of Education of China
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
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35
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Caramori GF, Østrøm I, Ortolan AO, Nagurniak GR, Besen VM, Muñoz-Castro A, Orenha RP, Parreira RLT, Galembeck SE. The usefulness of energy decomposition schemes to rationalize host–guest interactions. Dalton Trans 2020; 49:17457-17471. [DOI: 10.1039/d0dt03518a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The findings reported here reveal the robustness and practical application of EDA-NOCV in rationalizing molecular recognition situations in host–guest systems.
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Affiliation(s)
| | - Ina Østrøm
- Department of Chemistry
- Federal University of Santa Catarina
- Florianópolis
- Brazil
| | | | | | - Vitor M. Besen
- Department of Chemistry
- Federal University of Santa Catarina
- Florianópolis
- Brazil
| | - Alvaro Muñoz-Castro
- Laboratorio de Química Inorgánica y Materiales Moleculares
- Facultad de Ingeniería
- Universidad Autonoma de Chile
- Santiago
- Chile
| | - Renato P. Orenha
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas
- Universidade de Franca
- Franca
- Brazil
| | - Renato L. T. Parreira
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas
- Universidade de Franca
- Franca
- Brazil
| | - Sérgio E. Galembeck
- Departamento de Química
- Faculdade de Filosofia
- Ciências e Letras de Ribeirão Preto
- Universidade de São Paulo
- Ribeirão Preto
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36
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Zhou W, Chen Y, Dai X, Zhang HY, Liu Y. Cucurbit[8]uril-Mediated Polypseudorotaxane for Enhanced Lanthanide Luminescence Behavior in Water. Org Lett 2019; 21:9363-9367. [DOI: 10.1021/acs.orglett.9b03597] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Weilei Zhou
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
- Nano Innovation Institute (NII), College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities, Tongliao 028000, People’s Republic of China
| | - Yong Chen
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Xianyin Dai
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Hao-yang Zhang
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yu Liu
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
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37
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Cai K, Shi Y, Cao C, Vemuri S, Cui B, Shen D, Wu H, Zhang L, Qiu Y, Chen H, Jiao Y, Stern CL, Alsubaie FM, Xiao H, Li J, Stoddart JF. Tuning radical interactions in trisradical tricationic complexes by varying host-cavity sizes. Chem Sci 2019; 11:107-112. [PMID: 32110362 PMCID: PMC7012021 DOI: 10.1039/c9sc04860j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/01/2019] [Indexed: 12/16/2022] Open
Abstract
Although host–guest pairing interactions between bisradical dicationic cyclobis(paraquat-p-phenylene) (BB2(˙+)) and the bipyridinium radical cation (BIPY˙+) have been studied extensively, host molecules other than BB2(˙+) are few and far between.
Although host–guest pairing interactions between bisradical dicationic cyclobis(paraquat-p-phenylene) (BB2(˙+)) and the bipyridinium radical cation (BIPY˙+) have been studied extensively, host molecules other than BB2(˙+) are few and far between. Herein, four bisradical dicationic cyclophanes with tunable cavity sizes are investigated as new bisradical dicationic hosts for accommodating the methyl viologen radical cation (MV˙+) to form trisradical tricationic complexes. The structure–property relationships between cavity sizes and binding affinities have been established by comprehensive solution and solid-state characterizations as well as DFT calculations. The association constants of the four new trisradical tricationic complexes are found to range between 7400 and 170 000 M–1, with the strongest one being 4.3 times higher than that for [MV⊂BB]3(˙+). The facile accessibility and tunable stability of these new trisradical tricationic complexes make them attractive redox-controlled recognition motifs for further use in supramolecular chemistry and mechanostereochemistry.
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Affiliation(s)
- Kang Cai
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Yi Shi
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Changsu Cao
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education , Department of Chemistry , Tsinghua University , Beijing 100084 , China .
| | - Suneal Vemuri
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Binbin Cui
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Dengke Shen
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Huang Wu
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Long Zhang
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Yunyan Qiu
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Hongliang Chen
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Yang Jiao
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Charlotte L Stern
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA .
| | - Fehaid M Alsubaie
- Joint Center of Excellence in Integrated Nano-Systems , King Abdulaziz City for Science and Technology , Riyadh 11442 , Kingdom of Saudi Arabia
| | - Hai Xiao
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education , Department of Chemistry , Tsinghua University , Beijing 100084 , China .
| | - Jun Li
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education , Department of Chemistry , Tsinghua University , Beijing 100084 , China .
| | - J Fraser Stoddart
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208 , USA . .,Institute for Molecular Design and Synthesis , Tianjin University , 92 Weijin Road , Tianjin 300072 , China.,School of Chemistry , University of New South Wales , Sydney , NSW 2052 , Australia
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38
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Abstract
The design and synthesis of artificial molecular switches (AMSs) displaying architectures of increased complexity would constitute significant progress in meeting the challenging task of realizing artificial molecular machines (AMMs). Here, we report the synthesis and characterization of a molecular shuttle composed of a cyclobis(paraquat-4,4'-biphenylene) cyclophane ring and a dumbbell incorporating a cyclobis(paraquat-m-phenylene) cyclophane "head" and a bifurcated, tawse-like "tail" composed of two oligoether chains, each containing a 1,5-dioxynaphthalene ring. In its reduced state the ring-in-ring recognition motif, between the meta and para bisradical dicationic cyclophanes (rings), defines the [2]rotaxane, whereas in the oxidized state, the cyclobis(paraquat-4,4'-biphenylene) cyclophane encircles the two 1,5-dioxynaphthalene rings in the bifurcated "tail". The redox-controlled molecular shuttling, which can be likened to the action of a zipper in the macroscopic world, exhibits slow kinetics dampened by the opening and closing of the bifurcated "tail" of the molecular shuttle. Cyclic voltammetry reveals that this slow shuttling is associated with electrochemical hysteresis.
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Affiliation(s)
- Melissa Dumartin
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Mark C Lipke
- Department of Chemistry and Chemical Biology , Rutgers, The State University of New Jersey , 610 Taylor Road , Piscataway , New Jersey 08854 , United States
| | - J Fraser Stoddart
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.,Institute of Molecular Design and Synthesis , Tianjin University , 92 Weijin Road, Nankai District , Tianjin 300072 , P. R. China.,School of Chemistry , University of New South Wales , Sydney , NSW 2052 , Australia
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39
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Neira I, Alvariño C, Domarco O, Blanco V, Peinador C, García MD, Quintela JM. Tuning of the Self‐Threading of Ring‐in‐Ring Structures in Aqueous Media. Chemistry 2019; 25:14834-14842. [DOI: 10.1002/chem.201902851] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Indexed: 01/25/2023]
Affiliation(s)
- Iago Neira
- Departamento de Química and Centro de Investigaciones Científicas, Avanzadas (CICA)Facultad de CienciasUniversidade da Coruña 15071 A Coruña Spain
| | - Cristina Alvariño
- Departamento de Química and Centro de Investigaciones Científicas, Avanzadas (CICA)Facultad de CienciasUniversidade da Coruña 15071 A Coruña Spain
- Institut de ChimieUniversité de Neuchâtel Avenue de Bellevaux 51 2000 Neuchàtel Switzerland
| | - Olaya Domarco
- Departamento de Química and Centro de Investigaciones Científicas, Avanzadas (CICA)Facultad de CienciasUniversidade da Coruña 15071 A Coruña Spain
| | - Víctor Blanco
- Departamento de Química Orgánica and Unidad de Excelencia de Química (UEQ), Universidad de Granada (UGR)Facultad de Ciencias Avda. Fuente Nueva S/N 18071 Granada Spain
| | - Carlos Peinador
- Departamento de Química and Centro de Investigaciones Científicas, Avanzadas (CICA)Facultad de CienciasUniversidade da Coruña 15071 A Coruña Spain
| | - Marcos D. García
- Departamento de Química and Centro de Investigaciones Científicas, Avanzadas (CICA)Facultad de CienciasUniversidade da Coruña 15071 A Coruña Spain
| | - José M. Quintela
- Departamento de Química and Centro de Investigaciones Científicas, Avanzadas (CICA)Facultad de CienciasUniversidade da Coruña 15071 A Coruña Spain
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40
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Xu G, Wu L, Chang X, Ang TWH, Wong W, Huang J, Che C. Solvent‐Induced Cluster‐to‐Cluster Transformation of Homoleptic Gold(I) Thiolates between Catenane and Ring‐in‐Ring Structures. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909980] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Guang‐Tao Xu
- State Key Laboratory of Synthetic ChemistryInstitute of Molecular Functional MaterialsHKU-CAS Joint Laboratory on New Materials, and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Liang‐Liang Wu
- State Key Laboratory of Synthetic ChemistryInstitute of Molecular Functional MaterialsHKU-CAS Joint Laboratory on New Materials, and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Xiao‐Yong Chang
- State Key Laboratory of Synthetic ChemistryInstitute of Molecular Functional MaterialsHKU-CAS Joint Laboratory on New Materials, and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Tim Wai Hung Ang
- State Key Laboratory of Synthetic ChemistryInstitute of Molecular Functional MaterialsHKU-CAS Joint Laboratory on New Materials, and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Wai‐Yeung Wong
- Department of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic University, Hung Hom Hong Kong SAR China
| | - Jie‐Sheng Huang
- State Key Laboratory of Synthetic ChemistryInstitute of Molecular Functional MaterialsHKU-CAS Joint Laboratory on New Materials, and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Chi‐Ming Che
- State Key Laboratory of Synthetic ChemistryInstitute of Molecular Functional MaterialsHKU-CAS Joint Laboratory on New Materials, and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
- HKU Shenzhen Institute of Research and Innovation Shenzhen 518053 China
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41
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Xu G, Wu L, Chang X, Ang TWH, Wong W, Huang J, Che C. Solvent‐Induced Cluster‐to‐Cluster Transformation of Homoleptic Gold(I) Thiolates between Catenane and Ring‐in‐Ring Structures. Angew Chem Int Ed Engl 2019; 58:16297-16306. [DOI: 10.1002/anie.201909980] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 08/30/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Guang‐Tao Xu
- State Key Laboratory of Synthetic Chemistry Institute of Molecular Functional Materials HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Liang‐Liang Wu
- State Key Laboratory of Synthetic Chemistry Institute of Molecular Functional Materials HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Xiao‐Yong Chang
- State Key Laboratory of Synthetic Chemistry Institute of Molecular Functional Materials HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Tim Wai Hung Ang
- State Key Laboratory of Synthetic Chemistry Institute of Molecular Functional Materials HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Wai‐Yeung Wong
- Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University, Hung Hom Hong Kong SAR China
| | - Jie‐Sheng Huang
- State Key Laboratory of Synthetic Chemistry Institute of Molecular Functional Materials HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Chi‐Ming Che
- State Key Laboratory of Synthetic Chemistry Institute of Molecular Functional Materials HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
- HKU Shenzhen Institute of Research and Innovation Shenzhen 518053 China
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Abstract
Hierarchically nested hosts offer new opportunities to control the guest binding of the inner host, functionalize the cavity of the outer host, and investigate communication between different layers. Here we report a self-assembled triazatruxene-based FeII4L4 capsule, which was able to encapsulate a covalent cage, cryptophane-111 (CRY). The resulting cage-in-cage complex was capable of accommodating a cesium cation or xenon atom with altered guest binding behavior compared to the CRY alone. A crystal structure of the Russian doll complex [Cs+⊂CRY]⊂FeII4L4 unambiguously demonstrated the unusual encapsulation of a cation within a capsule bearing a 8+ charge. Moreover, the binding of enantiopure CRY occurred with high enantioselectivity (530-fold) between the two enantiomers of the tetrahedron. This discrimination resulted in stereochemical information transfer from the inner covalent cage to the outer self-assembled capsule, leading to the formation of enantiopure [guest⊂cage]⊂cage complexes. The stereochemistry of the tetrahedron persisted even after displacement of CRY with an achiral guest.
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43
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Young Lee G, Bay KL, Houk KN. Evaluation of DFT Methods and Implicit Solvation Models for Anion‐Binding Host‐Guest Systems. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ga Young Lee
- Department of Chemistry and BiochemistryUniversity of California Los Angeles 607 Charles E. Young Drive. East California 90095 United States
| | - Katherine L. Bay
- Department of Chemistry and BiochemistryUniversity of California Los Angeles 607 Charles E. Young Drive. East California 90095 United States
| | - Kendall N. Houk
- Department of Chemistry and BiochemistryUniversity of California Los Angeles 607 Charles E. Young Drive. East California 90095 United States
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