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Huang B, Zhou M, Hong QY, Wu MX, Zhao XL, Xu L, Gao EQ, Yang HB, Shi X. A Redox-Active Phenothiazine-based Pd 2L 4-Type Coordination Cage and Its Isolable Crystalline Polyradical Cations. Angew Chem Int Ed Engl 2024; 63:e202407279. [PMID: 38872356 DOI: 10.1002/anie.202407279] [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: 04/16/2024] [Revised: 06/13/2024] [Accepted: 06/13/2024] [Indexed: 06/15/2024]
Abstract
Polyradical cages are of great interest because they show very fascinating physical and chemical properties, but many challenges remain, especially for their synthesis and characterization. Herein, we present the synthesis of a polyradical cation cage 14⋅+ through post-synthetic oxidation of a redox-active phenothiazine-based Pd2L4-type coordination cage 1. It's worth noting that 1 exhibits excellent reversible electrochemical and chemical redox activity due to the introduction of a bulky 3,5-di-tert-butyl-4-methoxyphenyl substituent. The generation of 14⋅+ through reversible electrochemical oxidation is investigated by in situ UV/Vis-NIR and EPR spectroelectrochemistry. Meanwhile, chemical oxidation of 1 can also produce 14⋅+ which can be reversibly reduced back to the original cage 1, and the process is monitored by EPR and NMR spectroscopies. Eventually, we succeed in the isolation and single crystal X-ray diffraction analysis of 14⋅+, whose electronic structure and conformation are distinct to original 1. The magnetic susceptibility measurements indicate the predominantly antiferromagnetic interactions between the four phenothiazine radical cations in 14⋅+. We believe that our study including the facile synthesis methodology and in situ spectroelectrochemistry will shed some light on the synthesis and characterization of novel polyradical systems, opening more perspectives for developing functional supramolecular cages.
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Affiliation(s)
- Bin Huang
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Manfei Zhou
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Qiong-Yan Hong
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Meng-Xiang Wu
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Xiao-Li Zhao
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Lin Xu
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - En-Qing Gao
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Hai-Bo Yang
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Xueliang Shi
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
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2
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Lu YL, Wu K, Huang YH, Li WC, Cao ZM, Yan XH, Zhang XD, Liu CH, Ruan J, Xu HS, Pan M, Su CY. Stereochemical Control of Redox Co II/Co III-Cages with Switchable Cotton Effects Based on Labile-Static States. J Am Chem Soc 2024; 146:20414-20424. [PMID: 38982611 DOI: 10.1021/jacs.4c06102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
The structural dynamics of artificial assemblies, in aspects such as molecular recognition and structural transformation, provide us with a blueprint to achieve bioinspired applications. Here, we describe the assembly of redox-switchable chiral metal-organic cages Λ8/Δ8-[Pd6(CoIIL3)8]28+ and Λ8/Δ8-[Pd6(CoIIIL3)8]36+. These isomeric cages demonstrate an on-off chirality logic gate controlled by their chemical and stereostructural dynamics tunable through redox transitions between the labile CoII-state and static CoIII-state with a distinct Cotton effect. The transition between different states is enabled by a reversible redox process and chiral recognition originating in the tris-chelate Co-centers. All cages in two states are thoroughly characterized by NMR, ESI-MS, CV, CD, and X-ray crystallographic analysis, which clarify their redox-switching behaviors upon chemical reduction/oxidation. The stereochemical lability of the CoII-center endows the Λ8/Δ8-CoII-cages with efficient chiral-induction by enantiomeric guests, leading to enantiomeric isomerization to switch between Λ8/Δ8-CoII-cages, which can be stabilized by oxidation to their chemically inert forms of Λ8/Δ8-CoIII-cages. Kinetic studies reveal that the isomerization rate of the Δ8-CoIII-cage is at least an order of magnitude slower than that of the Δ8-CoII-cage even at an elevated temperature, while its activation energy is 16 kcal mol-1 higher than that of the CoII-cage.
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Affiliation(s)
- Yu-Lin Lu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Kai Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yin-Hui Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Wei-Chun Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zhong-Min Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiang-Han Yan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiao-Dong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Chen-Hui Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jia Ruan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hai-Sen Xu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Mei Pan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Cheng-Yong Su
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, GBRCE for Functional Molecular Engineering, LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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3
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Sivalingam V, Parbin M, Krishnaswamy S, Chand DK. Cage-To-Cage Transformations in Self-Assembled Coordination Cages Using "Acid/Base" or "Guest Binding-Induced Strain" as Stimuli. Angew Chem Int Ed Engl 2024; 63:e202403711. [PMID: 38567836 DOI: 10.1002/anie.202403711] [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: 02/22/2024] [Indexed: 05/03/2024]
Abstract
Controlling supramolecular systems between different functional forms by utilizing acids/bases as stimuli is a formidable challenge, especially where labile coordination bonds are involved. A pair of acid/base responsive, interconvertible 1,5-enedione/pyrylium based Pd2L4-type cages are prepared that exhibit differential guest binding abilities towards disulfonates of varied sizes. A three-state switch has been achieved, where (i) a weakly coordinating base induced cage-to-cage transformation in the first step, (ii) a strongly coordinating base triggered cage disassembly as the second step, and (iii) the third step shows acid(strong) promoted generation of initial cage, thereby completing the cycle. To our surprise, binding of a specific disulfonate guest facilitated cage-to-cage transformations by inducing strain on the cage assembly thereby opening the labile pyrylium rings of the cage. Through a competitive guest binding study, we demonstrated the superior guest binding capability of the octacationic pyrylium-based cage over a similar-sized tetracationic cage. These results provide a reliable approach to reversibly modulate the guest binding properties of acid/base-responsive self-assembled coordination cages.
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Affiliation(s)
- Vellaiyadevan Sivalingam
- IoE Center of Molecular Architecture, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Minaz Parbin
- IoE Center of Molecular Architecture, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Shobhana Krishnaswamy
- IoE Center of Molecular Architecture, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Dillip Kumar Chand
- IoE Center of Molecular Architecture, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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Ling QH, Fu Y, Lou ZC, Yue B, Guo C, Hu X, Lu W, Hu L, Wang W, Zhang M, Yang HB, Xu L. Naphthalene Diimide-Based Metallacage as an Artificial Ion Channel for Chloride Ion Transport. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308181. [PMID: 38459671 DOI: 10.1002/advs.202308181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/06/2024] [Indexed: 03/10/2024]
Abstract
Developing synthetic molecular devices for controlling ion transmembrane transport is a promising research field in supramolecular chemistry. These artificial ion channels provide models to study ion channel diseases and have huge potential for therapeutic applications. Compared with self-assembled ion channels constructed by intermolecular weak interactions between smaller molecules or cyclic compounds, metallacage-based ion channels have well-defined structures and can exist as single components in the phospholipid bilayer. A naphthalene diimide-based artificial chloride ion channel is constructed through efficient subcomponent self-assembly and its selective ion transport activity in large unilamellar vesicles and the planar lipid bilayer membrane by fluorescence and ion-current measurements is investigated. Molecular dynamics simulations and density functional theory calculations show that the metallacage spans the entire phospholipid bilayer as an unimolecular ion transport channel. This channel transports chloride ions across the cell membrane, which disturbs the ion balance of cancer cells and inhibits the growth of cancer cells at low concentrations.
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Affiliation(s)
- Qing-Hui Ling
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Yuanyuan Fu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200062, China
| | - Zhen-Chen Lou
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Bangkun Yue
- Key Laboratory of Micro-Nano Optoelectronic Devices (Wenzhou), College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China
| | - Chenxing Guo
- College of Chemistry and Environmental Engineering, Shenzhen University, Guangdong, 518055, China
| | - Xinyu Hu
- Key Laboratory of Micro-Nano Optoelectronic Devices (Wenzhou), College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China
| | - Weiqiang Lu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200062, China
| | - Lianrui Hu
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Wei Wang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Min Zhang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Hai-Bo Yang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Lin Xu
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
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5
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Zhang SY, Yang XD, Zhang YJ, Zhou JH, Liu SH, Sun JK. A Versatile Strategy for the Generation of Air-stable Radical-functionalized Materials. SMALL METHODS 2024:e2301468. [PMID: 38295090 DOI: 10.1002/smtd.202301468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/12/2024] [Indexed: 02/02/2024]
Abstract
The exploration of a facile approach to create structurally versatile substances carrying air-stable radicals is highly desired, but still a huge challenge in chemistry and materials science. Herein, a non-contact method to generate air-stable radicals by exposing pyridine/imidazole ring-bearing substances to volatile cyanuric chloride vapor, harnessed as a chemical fuel is reported. This remarkable feat is accomplished through a nucleophilic substitution reaction, wherein an intrinsic electron transfer event transpires spontaneously, originating from the chloride anion (Cl- ) to the cationic nitrogen (N+ ) atom, ultimately giving rise to pyridinium/imidazolium radicals. Impressively, the generated radicals exhibit noteworthy stability in the air over one month owing to the delocalization of the unpaired electron through the extended and highly fused π-conjugated pyridinium/imidazolium-triazine unit. Such an approach is universal to diverse substances, including organic molecules, metal-organic complexes, hydrogels, polymers, and organic cage materials. Capitalizing on this versatile technique, surface radical functionalization can be readily achieved across diverse substrates. Moreover, the generated radical species showcase a myriad of high-performance applications, including mimicking natural peroxidase to accelerate oxidation reactions and achieving high-efficiency near-infrared photothermal conversion and photothermal bacterial inhibition.
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Affiliation(s)
- Su-Yun Zhang
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Xiao-Dong Yang
- 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
- Key Laboratory of Green Chemical Media and Reactions (Ministry of Education), Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Ya-Jun Zhang
- College of Science, Hebei University of Science and Technology, Yuhua Road 70, Shijiazhuang, 050080, P. R. China
| | - 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
| | - Si-Hua Liu
- 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
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Wu MX, Hong QY, Li M, Jiang WL, Huang B, Lu S, Wang H, Yang HB, Zhao XL, Shi X. Self-assembly of conformation-adaptive dihydrophenazine-based coordination cages. Chem Commun (Camb) 2024; 60:1184-1187. [PMID: 38193861 DOI: 10.1039/d3cc04864k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
In this study, we designed and synthesized three conformation-adaptive Pd2L4- and Pd3L6-type coordination cages based on three dihydrophenazine-based ligands with different lengths. Interestingly, the shorter ligands L1 and L2 self-assembled into Pd2L4-type coordination cages while the longer ligand L3 formed Pd3L6-type one, mainly driven by the anion template effect. All coordination cages were confirmed through single-crystal X-ray diffraction, and their structural conformations underwent great changes compared with those of their corresponding ligands. Moreover, the conformational changes also significantly affected their photophysical and electrochemical properties which were distinct from their parent ligands.
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Affiliation(s)
- Meng-Xiang Wu
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663 N, Zhongshan Road, Shanghai 200062, P. R. China.
| | - Qiong-Yan Hong
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663 N, Zhongshan Road, Shanghai 200062, P. R. China.
| | - Minghui Li
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663 N, Zhongshan Road, Shanghai 200062, P. R. China.
| | - Wei-Ling Jiang
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663 N, Zhongshan Road, Shanghai 200062, P. R. China.
| | - Bin Huang
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663 N, Zhongshan Road, Shanghai 200062, P. R. China.
| | - Shuai Lu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - Heng Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - Hai-Bo Yang
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663 N, Zhongshan Road, Shanghai 200062, P. R. China.
| | - Xiao-Li Zhao
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663 N, Zhongshan Road, Shanghai 200062, P. R. China.
| | - Xueliang Shi
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663 N, Zhongshan Road, Shanghai 200062, P. R. China.
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7
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Shuto M, Sumida R, Yuasa M, Sawada T, Yoshizawa M. A Closed Cavity Strategy for Selective Dipeptide Binding by a Polyaromatic Receptor in Water. JACS AU 2023; 3:2905-2911. [PMID: 37885581 PMCID: PMC10598568 DOI: 10.1021/jacsau.3c00484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 10/28/2023]
Abstract
Precise recognition of peptides is a daunting task owing to the substantial number of available amino acids and their combination into various oligo/polymeric structures in addition to the high hydration of their flexible frameworks. Here, we report the selective recognition of a dipeptide through a closed cavity strategy, in contrast to previous synthetic receptors with open cavities. A polyaromatic receptor with a virtually isolated, hydrophobic cavity exclusively binds one molecule of phenylalanine dipeptide from a mixture with its amino acid and tripeptide in water via multiple CH-π and hydrogen-bonding interactions in the complementary cavity. The binding selectivity persists even in the presence of other dipeptides, such as leucine-leucine, leucine-phenylalanine, tyrosine-phenylalanine, tryptophan-tryptophan, and aspartame, revealed by NMR/MS-based competitive binding experiments. ITC studies reveal that the selective binding of the phenylalanine dipeptide is relatively strong (Ka = 1.1 × 105 M-1) and an enthalpically and entropically favorable process (ΔH = -11.7 kJ mol-1 and TΔS = 17.0 kJ mol-1). In addition, the present receptor can be used for the emission detection of the dipeptide through a combination with a fluorescent dye in water.
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Affiliation(s)
- Mayu Shuto
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
| | - Ryuki Sumida
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
| | - Mana Yuasa
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
| | - Tomohisa Sawada
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
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Zheng J, Yang Y, Ronson TK, Wood DM, Nitschke JR. Redox Triggers Guest Release and Uptake Across a Series of Azopyridine-Based Metal-Organic Capsules. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302580. [PMID: 37462086 DOI: 10.1002/adma.202302580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/29/2023] [Indexed: 09/21/2023]
Abstract
Precise control over guest release and recapture using external stimuli is a valuable goal, potentially enabling new modes of chemical purification. Including redox moieties within the ligand cores of molecular capsules to trigger the release and uptake of guests has proved effective, but this technique is limited to certain capsules and guests. Herein, the construction of a series of novel metal-organic capsules from ditopic, tritopic, and tetratopic ligands is demonstrated, all of which contain redox-active azo groups coordinated to FeII centers. Compared to their iminopyridine-based analogs, this new class of azopyridine-based capsules possesses larger cavities, capable of encapsulating more voluminous guests. Upon reduction of the capsules, their guests are released and may then be re-encapsulated when the capsules are regenerated by oxidation. Since the redox centers are on the ligand arms, they are modular and can be attached to a variety of ligand cores to afford varying and predictable architectures. This method thus shows promise as a generalized approach for designing redox-controlled guest release and uptake systems.
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Affiliation(s)
- Jieyu Zheng
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Yuchong Yang
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Tanya K Ronson
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Daniel M Wood
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Jonathan R Nitschke
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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Lin HY, Wang YT, Shi X, Yang HB, Xu L. Switchable metallacycles and metallacages. Chem Soc Rev 2023; 52:1129-1154. [PMID: 36722920 DOI: 10.1039/d2cs00779g] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Two-dimensional metallacycles and three-dimensional metallacages constructed by coordination-driven self-assembly have attracted much attention because they exhibit unique structures and properties and are highly efficient to synthesize. Introduction of switching into supramolecular chemistry systems is a popular strategy, as switching can endow systems with reversible features that are triggered by different stimuli. Through this strategy, novel switchable metallacycles and metallacages were generated, which can be reversibly switched into different stable states with distinct characteristics by external stimuli. Switchable metallacycles and metallacages exhibit versatile structures and reversible properties and are inherently dynamic and respond to artificial signals; thus, these structures have many promising applications in a wide range of fields, such as drug delivery, data processing, pollutant removal, switchable catalysis, smart functional materials, etc. This review focuses on the design of switchable metallacycles and metallacages, their switching behaviours and mechanisms triggered by external stimuli, and the corresponding structural changes and resultant properties and functions.
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Affiliation(s)
- Hong-Yu Lin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, P. R. China.
| | - Yu-Te Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, P. R. China.
| | - Xueliang Shi
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, P. R. China.
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, P. R. China. .,Wuhu Hospital Affiliated to East China Normal University (The Second People's Hospital of Wuhu), Wuhu 241001, P. R. China
| | - Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, P. R. China. .,Wuhu Hospital Affiliated to East China Normal University (The Second People's Hospital of Wuhu), Wuhu 241001, P. R. China
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11
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Xuan JJ, Xia ZJ, Yan DN, Hu SJ, Zhou LP, Cai LX, Sun QF. Shape Complementary Coordination Self-Assembly of a Redox-Active Heteroleptic Complex. Inorg Chem 2022; 61:8854-8860. [PMID: 35642338 DOI: 10.1021/acs.inorgchem.2c00872] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We present here the coordination self-assembly of a new heteroleptic (bpyPd)4L1L22 coordination complex (1) from one novel pyridinium-functionalized bis-2,4,6-tris(pyridin-3-yl)-1,3,5-triazine (bis-3-TPT, L1) macrocyclic ligand, two separate 3-TPT (L2) ligands, and four cis-blocking bpyPd(NO3)2 (bpy = 2,2'-bipyridine). While homoleptic self-assemblies with either L1 or L2 gave dynamic mixtures of products, a single thermodynamic heteroleptic complex was obtained driven by the shape complementarity of building blocks. Moreover, the redox-active nature of the heteroleptic assembly facilitates the highly efficient catalytic aerobic photo-oxidation of aromatic secondary alcohols under mild conditions.
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Affiliation(s)
- Jin-Jin Xuan
- College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Zi-Jun Xia
- College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Dan-Ni Yan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Shao-Jun Hu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Li-Peng Zhou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Li-Xuan Cai
- College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Qing-Fu Sun
- College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
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12
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Kishida N, Yoshizawa M. Functional Coordination Capsules Featuring Bent Anthracene Dimers. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology
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13
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Wang R, Rebek J, Yu Y. Organic radical reactions confined to containers in supramolecular systems. Chem Commun (Camb) 2022; 58:1828-1833. [PMID: 35084001 DOI: 10.1039/d1cc06851b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Radical chemistry and host-guest chemistry have each developed rapidly over the past decades and their intersection offers an attractive opportunity for modern applications. Radicals can be introduced into the frameworks of supramolecular hosts or radicals can be guests, generated in and confined to host containers. In this highlight we outline research achievements in both approaches, photoinduced and external reagent-initiated radicals in the host. Specific topics include rearrangement and fragmentation reactions, hydrocarbon oxidation and alkyl halide reductions of molecules confined to various supramolecular complexes. Applications to challenging problems in chemical synthesis are suggested.
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Affiliation(s)
- Rui Wang
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry, College of Science, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China.
| | - Julius Rebek
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry, College of Science, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China. .,Skaggs Institute for Chemical Biology and Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Yang Yu
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry, College of Science, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China.
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14
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Jiang WL, Huang B, Wu MX, Zhu YK, Zhao XL, Shi X, Yang HB. Post-Synthetic Modification of Metal-Organic Frameworks Bearing Phenazine Radical Cations for aza-Diels-Alder Reactions. Chem Asian J 2021; 16:3985-3992. [PMID: 34652071 DOI: 10.1002/asia.202100883] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/22/2021] [Indexed: 11/07/2022]
Abstract
Metal-organic frameworks (MOFs) consisting of organic radicals are of great interest because they have exhibited unique and intriguing optical, electronic, magnetic, and chemo-catalytic properties, and thus have demonstrated great potential applications in optical, electronic, and magnetic devices, and as catalysts. However, the preparation of MOFs bearing stable organic radicals is very challenging because most organic radicals are highly reactive and difficult to incorporate into the framework of MOFs. Herein we reported a post-synthetic modification strategy to prepare a novel MOF containing phenazine radical cations, which was used as heterogeneous catalyst for aza-Diels-Alder reaction. The zinc-based metal-organic framework Zn2 (PHZ)2 (dabco) (N) was successfully synthesized from 5,10-di(4-benzoic acid)-5,10-dihydrophenazine (PHZ), triethylene diamine (dabco) with Zn(NO3 )2 ⋅ 6H2 O by solvothermal method. The as-synthesized MOF N was partially oxidized by AgSbF6 to form MOF R containing ∼10% phenazine radical cation species. The resultant MOF R was found to keep the original crystal type of N and very persistent under ambient conditions. Consequently, MOF R was successfully employed in radical cation-catalyzed aza-Diels-Alder reactions with various imine substrates at room temperature with high reaction conversion. Moreover, heterogeneous catalyst MOF R was reusable up to five times without much loss of catalytic activity, demonstrating its excellent stability and recyclability. Therefore, the post-synthetic modification developed in this work is expected to become a versatile strategy to prepare radical-based MOFs for the application of heterogeneous catalysts in organic synthesis.
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Affiliation(s)
- Wei-Ling Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Bin Huang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Meng-Xiang Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Ye-Kai Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Xiao-Li Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Xueliang Shi
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663N. Zhongshan Road, Shanghai, 200062, P. R. China
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15
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Shi Q, Wang X, Liu B, Qiao P, Li J, Wang L. Macrocyclic host molecules with aromatic building blocks: the state of the art and progress. Chem Commun (Camb) 2021; 57:12379-12405. [PMID: 34726202 DOI: 10.1039/d1cc04400a] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Macrocyclic host molecules play the central role in host-guest chemistry and supramolecular chemistry. The highly structural symmetry of macrocyclic host molecules can meet people's pursuit of aesthetics in molecular design, and generally means a balance of design, synthesis, properties and applications. For macrocyclic host molecules with highly symmetrical structures, building blocks, which could be described as repeat units as well, are the most fundamental elements for molecular design. The structural features and recognition ability of macrocyclic host molecules are determined by the building blocks and their connection patterns. Using different building blocks, different macrocyclic host molecules could be designed and synthesized. With decades of developments of host-guest chemistry and supramolecular chemistry, diverse macrocyclic host molecules with different building blocks have been designed and synthesized. Aromatic building blocks are a big family among the various building blocks used in constructing macrocyclic host molecules. In this feature article, the recent developments of macrocyclic host molecules with aromatic building blocks were summarized and discussed.
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Affiliation(s)
- Qiang Shi
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China. .,Key Laboratory of Light Conversion Materials and Technology of Shandong Academy of Sciences, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Xuping Wang
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China. .,Key Laboratory of Light Conversion Materials and Technology of Shandong Academy of Sciences, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Bing Liu
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China. .,Key Laboratory of Light Conversion Materials and Technology of Shandong Academy of Sciences, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Panyu Qiao
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China. .,Key Laboratory of Light Conversion Materials and Technology of Shandong Academy of Sciences, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Jing Li
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China. .,Shandong Provincial Key Laboratory of High Strength Lightweight Metallic Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Leyong Wang
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China. .,Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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16
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Blackburn PT, Mansoor IF, Dutton KG, Tyryshkin AM, Lipke MC. Accessing three oxidation states of cobalt in M 6L 3 nanoprisms with cobalt-porphyrin walls. Chem Commun (Camb) 2021; 57:11342-11345. [PMID: 34642705 DOI: 10.1039/d1cc04860k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanocages with porphyrin walls are common, but studies of such structures hosting redox-active metals are rare. Pt2+-linked M6L3 nanoprisms with cobalt-porphyrin walls were prepared and their redox properties were evaluated electrochemically and chemically, leading to the first time that cobalt-porphyrin nanocages have been characterized in CoI, CoII, and CoIII states.
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Affiliation(s)
- P Thomas Blackburn
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
| | - Iram F Mansoor
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
| | - Kaitlyn G Dutton
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
| | - Alexei M Tyryshkin
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
| | - Mark C Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
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17
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Huang B, Mao L, Shi X, Yang HB. Recent advances and perspectives on supramolecular radical cages. Chem Sci 2021; 12:13648-13663. [PMID: 34760150 PMCID: PMC8549795 DOI: 10.1039/d1sc01618k] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/31/2021] [Indexed: 12/20/2022] Open
Abstract
Supramolecular radical chemistry has been emerging as a cutting-edge interdisciplinary field of traditional supramolecular chemistry and radical chemistry in recent years. The purpose of such a fundamental research field is to combine traditional supramolecular chemistry and radical chemistry together, and take the benefit of both to eventually create new molecules and materials. Recently, supramolecular radical cages have been becoming one of the most frontier and challenging research focuses in the field of supramolecular chemistry. In this Perspective, we give a brief introduction to organic radical chemistry, supramolecular chemistry, and the emerging supramolecular radical chemistry along with their history and application. Subsequently, we turn to the main part of this topic: supramolecular radical cages. The design and synthesis of supramolecular cages consisting of redox-active building blocks and radical centres are summarized. The host-guest interactions between supramolecular (radical) cages and organic radicals are also surveyed. Some interesting properties and applications of supramolecular radical cages such as their unique spin-spin interactions and intriguing confinement effects in radical-mediated/catalyzed reactions are comprehensively discussed and highlighted in the main text. The purpose of this Perspective is to help students and researchers understand the development of supramolecular radical cages, and potentially to stimulate innovation and creativity and infuse new energy into the fields of traditional supramolecular chemistry and radical chemistry as well as supramolecular radical chemistry.
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Affiliation(s)
- Bin Huang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University 3663 N. Zhongshan Road Shanghai 200062 P. R. China
| | - Lijun Mao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University 3663 N. Zhongshan Road Shanghai 200062 P. R. China
| | - Xueliang Shi
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University 3663 N. Zhongshan Road Shanghai 200062 P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University 3663 N. Zhongshan Road Shanghai 200062 P. R. China
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18
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Rajasekar P, Swain A, Rajaraman G, Boomishankar R. Enantiopure Polyradical Tetrahedral Pd 12 L 6 Cages. Chemistry 2021; 27:10012-10015. [PMID: 33978271 DOI: 10.1002/chem.202101239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Indexed: 11/08/2022]
Abstract
The synthesis of cages with a polyradical framework remains a challenging task. Herein is reported an enantiomeric pair of quinoid-bridged polyradical tetrahedral palladium(II) cages that are stabilized by an unusual dianionic diradical form (dhbq..2- ). These cages have been characterized by electron paramagnetic resonance and UV-visible spectroscopy, squid magnetometry and mass spectrometry. Single-crystal-derived X-ray investigations of the iso-structural cages built on fluoranilate linkers confirm the tetrahedral structure of the obtained radical cages. Theoretical calculations showed that the diradical state of the dhbq anions is more stable than the usual monoradical state. A weak ferromagnetic exchange between adjacent radical centers was observed in DFT studies.
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Affiliation(s)
- Prabhakaran Rajasekar
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune, 411008, India
| | - Abinash Swain
- Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai, 400076, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai, 400076, India
| | - Ramamoorthy Boomishankar
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune, 411008, India.,Centre for Energy Science, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pune, 411008, India
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19
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Prusty S, Chan YT. Terpyridine-based Self-assembled Heteroleptic Coordination Complexes. CHEM LETT 2021. [DOI: 10.1246/cl.210048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Soumyakanta Prusty
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Tsu Chan
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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20
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Jiao T, Qu H, Tong L, Cao X, Li H. A Self‐Assembled Homochiral Radical Cage with Paramagnetic Behaviors. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tianyu Jiao
- Department of Chemistry Zhejiang University Hangzhou 310027 P. R. China
| | - Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces iChEM and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Lu Tong
- Department of Chemistry Zhejiang University Hangzhou 310027 P. R. China
| | - Xiaoyu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces iChEM and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Hao Li
- Department of Chemistry Zhejiang University Hangzhou 310027 P. R. China
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21
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Jiao T, Qu H, Tong L, Cao X, Li H. A Self-Assembled Homochiral Radical Cage with Paramagnetic Behaviors. Angew Chem Int Ed Engl 2021; 60:9852-9858. [PMID: 33651476 DOI: 10.1002/anie.202100655] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/14/2021] [Indexed: 12/24/2022]
Abstract
Condensation of an inherently C3 -symmetric polychlorotriphenylmethyl (PTM) radical trisaldehyde with tris(2-aminoethyl)amine (TREN) yields a [4+4] tetrahedral radical cage as a racemic pair of homochiral enantiomers in 75 % isolated yield. The structure was characterized by X-ray crystallography, confirming the homochirality of each cage framework. The homochirality results from intramolecular [CH⋅⋅⋅π] and hydrogen-bonding interactions within the cage framework. The four PTM radicals in a cage undergo weak through-space coupling. Magnetic measurements demonstrated that each cage bears 3.58 spins.
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Affiliation(s)
- Tianyu Jiao
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Lu Tong
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Xiaoyu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Hao Li
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
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22
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Jiao Y, Zuo Y, Yang H, Gao X, Duan C. Photoresponse within dye-incorporated metal-organic architectures. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213648] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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23
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Scott AJ, Vallejo J, Sarkar A, Smythe L, Regincós Martí E, Nichol GS, Klooster WT, Coles SJ, Murrie M, Rajaraman G, Piligkos S, Lusby PJ, Brechin EK. Exploiting host-guest chemistry to manipulate magnetic interactions in metallosupramolecular M 4L 6 tetrahedral cages. Chem Sci 2021; 12:5134-5142. [PMID: 34168772 PMCID: PMC8179613 DOI: 10.1039/d1sc00647a] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Reaction of Ni(OTf)2 with the bisbidentate quaterpyridine ligand L results in the self-assembly of a tetrahedral, paramagnetic cage [NiII4L6]8+. By selectively exchanging the bound triflate from [OTf⊂NiII4L6](OTf)7 (1), we have been able to prepare a series of host–guest complexes that feature an encapsulated paramagnetic tetrahalometallate ion inside this paramagnetic host giving [MIIX4⊂NiII4L6](OTf)6, where MIIX42− = MnCl42− (2), CoCl42− (5), CoBr42− (6), NiCl42− (7), and CuBr42− (8) or [MIIIX4⊂NiII4L6](OTf)7, where MIIIX4− = FeCl4− (3) and FeBr4− (4). Triflate-to-tetrahalometallate exchange occurs in solution and can also be accomplished through single-crystal-to-single-crystal transformations. Host–guest complexes 1–8 all crystallise as homochiral racemates in monoclinic space groups, wherein the four {NiN6} vertexes within a single Ni4L6 unit possess the same Δ or Λ stereochemistry. Magnetic susceptibility and magnetisation data show that the magnetic exchange between metal ions in the host [NiII4] complex, and between the host and the MX4n− guest, are of comparable magnitude and antiferromagnetic in nature. Theoretically derived values for the magnetic exchange are in close agreement with experiment, revealing that large spin densities on the electronegative X-atoms of particular MX4n− guest molecules lead to stronger host–guest magnetic exchange interactions. The tetrahedral [NiII4L6]8+ cage can reversibly bind paramagnetic MX41/2− guests, inducing magnetic exchange interactions between host and guest.![]()
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Affiliation(s)
- Aaron J Scott
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH93FJ UK
| | - Julia Vallejo
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH93FJ UK
| | - Arup Sarkar
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Lucy Smythe
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue Glasgow G12 8QQ UK
| | - E Regincós Martí
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue Glasgow G12 8QQ UK
| | - Gary S Nichol
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH93FJ UK
| | - Wim T Klooster
- UK National Crystallographic Service, Chemistry, Faculty of Natural and Environmental Sciences, University of Southampton England SO17 1BJ UK
| | - Simon J Coles
- UK National Crystallographic Service, Chemistry, Faculty of Natural and Environmental Sciences, University of Southampton England SO17 1BJ UK
| | - Mark Murrie
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue Glasgow G12 8QQ UK
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Stergios Piligkos
- Department of Chemistry, University of Copenhagen, Universitetsparken 5 2100 Copenhagen Denmark
| | - Paul J Lusby
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH93FJ UK
| | - Euan K Brechin
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH93FJ UK
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24
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Goeb S, Sallé M. Electron-rich Coordination Receptors Based on Tetrathiafulvalene Derivatives: Controlling the Host-Guest Binding. Acc Chem Res 2021; 54:1043-1055. [PMID: 33528243 DOI: 10.1021/acs.accounts.0c00828] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The coordination-driven self-assembly methodology has emerged over the last few decades as an extraordinarily versatile synthetic tool for obtaining discrete macrocyclic or cage structures. Rational approaches using large libraries of ligands and metal complexes have allowed researchers to reach more and more sophisticated discrete structures such as interlocked, chiral, or heteroleptic cages, and some of them are designed for guest binding applications. Efforts have been notably produced in controlling host-guest affinity with, in particular, an evident interest in targeting substrate transportation and subsequent delivering. Recent accomplishments in this direction were described from functional cages which can be addressed with light, pH, or through a chemical exchange. The case of a redox-stimulation has been much less explored. In this case, the charge state of the redox-active cavity can be controlled through an applied electrical potential or introduction of an appropriate oxidizing/reducing chemical agent. Beyond possible applications in electrochemical sensing for environmental and medical sciences as well as for redox catalysis, controlling the cavity charge offers the possibility to modulate the host-guest binding affinity through electrostatic interactions, up to the point of disassembly of the host-guest complex, i.e., releasing of the guest molecule from the host cavity.This Account highlights the key studies that we carried out at Angers, related to discrete redox-active coordination-based architectures (i.e., metalla-rings, -cages, and -tweezers). These species are built upon metal-driven self-assembly between electron-rich ligands, based on the tetrathiafulvalene (TTF) moiety (as well as some of its S-rich derivatives), and various metal complexes. Given the high π-donating character of those ligands, the corresponding host structures exhibit a high electronic density on the cavity panels. This situation is favorable to bind complementary electron-poor guests, as it was illustrated with bis(pyrrolo)tetrathiafulvalene (BPTTF)-based cavities, which exhibit hosting properties for C60 or tetrafluorotetracyanoquinodimethane (TCNQ-F4). In addition to the pristine tetrathiafulvalene, which was successfully incorporated into palladium- or ruthenium-based architectures, the case of the so-called extended tetrathiafulvalene (exTTF) appears particularly fascinating. A series of related polycationic and neutral M4L2 ovoid containers, as well as a M6L3 cage, were synthesized, and their respective binding abilities for neutral and anionic guests were studied. Remarkably, such structures allow to control of the binding of the guest upon a redox-stimulation, through two distinctive processes: (i) cage disassembling or (ii) guest displacement. As an extension of this approach, metalla-assembled electron-rich tweezers were designed, which are able to trigger the guest release through an original process based on supramolecular dimerization activated through a redox stimulus. This ensemble of results illustrates the remarkable ability of electron-rich, coordination-based self-assembled cavities to bind various types of guests and, importantly, to trigger their release through a redox-stimulus.
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Affiliation(s)
- Sébastien Goeb
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, 2 bd Lavoisier, F-49000 Angers, France
| | - Marc Sallé
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, 2 bd Lavoisier, F-49000 Angers, France
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25
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Dekhtiarenko M, Allain M, Carré V, Aubriet F, Voitenko Z, Sallé M, Goeb S. Comparing the self-assembly processes of two redox-active exTTF-based regioisomer ligands. NEW J CHEM 2021. [DOI: 10.1039/d1nj04555e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new exTTF-based ligand was synthesized and its coordination-driven self-assembly behavior with a square planar palladium complex was compared with a previously described regioisomer.
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Affiliation(s)
- Maksym Dekhtiarenko
- Univ Angers, CNRS, MOLTECH-Anjou, 2 bd Lavoisier, F-49045 Angers, France
- Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska st., Kyiv 01033, Ukraine
| | - Magali Allain
- Univ Angers, CNRS, MOLTECH-Anjou, 2 bd Lavoisier, F-49045 Angers, France
| | - Vincent Carré
- LCP-A2MC, FR 3624, Université de Lorraine, ICPM, 1 Bd Arago, 57078 Metz Cedex 03, France
| | - Frédéric Aubriet
- LCP-A2MC, FR 3624, Université de Lorraine, ICPM, 1 Bd Arago, 57078 Metz Cedex 03, France
| | - Zoia Voitenko
- Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska st., Kyiv 01033, Ukraine
| | - Marc Sallé
- Univ Angers, CNRS, MOLTECH-Anjou, 2 bd Lavoisier, F-49045 Angers, France
| | - Sébastien Goeb
- Univ Angers, CNRS, MOLTECH-Anjou, 2 bd Lavoisier, F-49045 Angers, France
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26
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Krykun S, Croué V, Alévêque O, Levillain E, Allain M, Mézière C, Carré V, Aubriet F, Voïtenko Z, Goeb S, Sallé M. A self-assembled tetrathiafulvalene box. Org Chem Front 2021. [DOI: 10.1039/d0qo01543a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A M8L2 metalla-cage constructed through coordination-driven self-assembly from a quinonato bis-ruthenium complex and an electron-rich tetrathiafulvalene (TTF) tetrapyridyl ligand is depicted.
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Affiliation(s)
| | | | | | | | | | | | - Vincent Carré
- LCP-A2MC
- FR 3624
- Université de Lorraine
- ICPM
- 57078 Metz Cedex 03
| | | | - Zoia Voïtenko
- Taras Shevchenko National University of Kyiv
- Kyiv 01033
- Ukraine
| | | | - Marc Sallé
- Univ Angers
- CNRS
- MOLTECH-ANJOU
- F-49000 Angers
- France
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27
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Jiang WL, Peng Z, Huang B, Zhao XL, Sun D, Shi X, Yang HB. TEMPO Radical-Functionalized Supramolecular Coordination Complexes with Controllable Spin–Spin Interactions. J Am Chem Soc 2020; 143:433-441. [DOI: 10.1021/jacs.0c11738] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Wei-Ling Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Zhiyong Peng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Bin Huang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Xiao-Li Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Di Sun
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Xueliang Shi
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
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28
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Brunet G, Suturina EA, George GPC, Ovens JS, Richardson P, Bucher C, Murugesu M. A Barrel‐Shaped Metal–Organic Blue‐Box Analogue with Photo‐/Redox‐Switchable Behavior. Chemistry 2020; 26:16455-16462. [DOI: 10.1002/chem.202003073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Gabriel Brunet
- Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N 6N5 Canada
| | | | - Guillaume P. C. George
- Univ. Lyon ENS de Lyon Université Claude Bernard Lyon 1 Laboratoire de Chimie CNRS UMR 5182 69342 Lyon France
| | - Jeffrey S. Ovens
- Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N 6N5 Canada
| | - Paul Richardson
- Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N 6N5 Canada
| | - Christophe Bucher
- Univ. Lyon ENS de Lyon Université Claude Bernard Lyon 1 Laboratoire de Chimie CNRS UMR 5182 69342 Lyon France
| | - Muralee Murugesu
- Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N 6N5 Canada
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29
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Hiraoka S, Takahashi S, Sato H. Coordination Self-Assembly Processes Revealed by Collaboration of Experiment and Theory: Toward Kinetic Control of Molecular Self-Assembly. CHEM REC 2020; 21:443-459. [PMID: 33241912 DOI: 10.1002/tcr.202000124] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 12/16/2022]
Abstract
The importance of the collaboration of experiment and theory has been proven in many examples in science and technology. Here, such a new example is shown in the investigation of molecular self-assembly process, which is a complicated multi-step chemical reaction occurring in the reaction network composed of a huge number of intermediates. An experimental method, QASAP (quantitative analysis of self-assembly process), developed by us and a numerical approach, NASAP (numerical analysis of self-assembly process), that analyzes the experimental data obtained by QASAP to draw detail molecular self-assembly pathways, which was also developed by us, are introduced, and their application to the investigation of Pd(II)-mediated coordination assemblies are presented. Further, the possibility of the prediction of the outcomes of molecular self-assembly by varying the reaction conditions is also demonstrated. Finally, a future direction in the field of artificial molecular self-assembly based on pathway-dependent self-assembly, that is, kinetic control of molecular self-assembly is discussed.
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Affiliation(s)
- Shuichi Hiraoka
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Satoshi Takahashi
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Hirofumi Sato
- Department of Molecular Engineering, Kyoto University, Kyoto, 615-8510, Japan.,Elements Strategy Initiative for Catalyst and Batteries, Kyoto University, Kyoto, 615-8510, Japan.,Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto, 606-8103, Japan
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30
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Plessius R, Deij V, Reek JNH, van der Vlugt JI. Redox-Active Supramolecular Heteroleptic M 4 L 2 L' 2 Assemblies with Tunable Interior Binding Site. Chemistry 2020; 26:13241-13248. [PMID: 32428350 PMCID: PMC7693204 DOI: 10.1002/chem.202001416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/28/2020] [Indexed: 12/18/2022]
Abstract
Three Pt4 L2 L'2 heteroleptic rectangles (1-3), containing ditopic redox-active bis-pyridine functionalized perylene bisimide (PBI) ligands PBI-pyr2 (L) are reported. Co-ligand L' is a dicarboxylate spacer of varying length, leading to modified overall size of the assemblies. 1 H NMR spectroscopy reveals a trend in the splitting and upfield chemical shift of the PBI-hydrogens in the rectangles with respect to free PBI, most pronounced with the largest strut length (3) and least with the smallest strut length (1). This is attributed to increased rotational freedom of the PBI-pyr2 ligand over its longitudinal axis (Npy -Npy ), due to increased distance between the PBI-surfaces, which is corroborated by VT-NMR measurements and DFT calculations. The intramolecular motion entails desymmetrization of the two PBI-ligands, in line with cyclic voltammetry (CV) data. The first (overall two-electron) reduction event and re-oxidation for 1 display a subtle peak-to-peak splitting of 60 mV, whilst increased splitting of this event is observed for 2 and 3. The binding of pyrene in 1 is probed to establish proof of concept of host-guest chemistry enabled by the two PBI-motifs. Fitting the binding curve obtained by 1 H NMR titration with a 1:1 complex formation model led to a binding constant of 964±55 m-1 . Pyrene binding is shown to directly influence the redox-chemistry of 1, resulting in a cathodic and anodic shift of approximately 46 mV on the first and second reduction event, respectively.
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Affiliation(s)
- Raoul Plessius
- van't Hoff Institute for Molecular Sciences (HIMS)University of Amsterdam (UvA)Science Park 9041098 XHAmsterdamThe Netherlands
| | - Vera Deij
- van't Hoff Institute for Molecular Sciences (HIMS)University of Amsterdam (UvA)Science Park 9041098 XHAmsterdamThe Netherlands
| | - Joost N. H. Reek
- van't Hoff Institute for Molecular Sciences (HIMS)University of Amsterdam (UvA)Science Park 9041098 XHAmsterdamThe Netherlands
| | - Jarl Ivar van der Vlugt
- van't Hoff Institute for Molecular Sciences (HIMS)University of Amsterdam (UvA)Science Park 9041098 XHAmsterdamThe Netherlands
- Current address: Institute of ChemistryCarl von Ossietzky University OldenburgCarl-von-Ossietzky-Strasse 9–1126129OldenburgGermany
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31
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Plajer AJ, Rizzuto FJ, von Krbek LKS, Gisbert Y, Martínez-Agramunt V, Nitschke JR. Oxidation triggers guest dissociation during reorganization of an Fe II 4L 6 twisted parallelogram. Chem Sci 2020; 11:10399-10404. [PMID: 34123180 PMCID: PMC8162311 DOI: 10.1039/d0sc04352d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 09/09/2020] [Indexed: 12/12/2022] Open
Abstract
A three-dimensional FeII 4L6 parallelogram was prepared from ferrocene-containing ditopic ligands. The steric preference of the bulky ferrocene cores towards meridional vertex coordination brought about this new structure type, in which the ferrocene units adopt three distinct conformations. The structure possesses two distinct, bowl-like cavities that host anionic guests. Oxidation of the ferrocene FeII to ferrocenium FeIII causes rotation of the ferrocene hinges, converting the structure to an FeII 1L1 + species with release of anionic guests, even though the average charge per iron increases in a way that would ordinarily increase guest binding strength. The degrees of freedom exhibited by these new structures - derived from the different configurations of the three ligands surrounding a meridional FeII center and the rotation of ferrocene cores - thus underpin their ability to reconfigure and eject guests upon oxidation.
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Affiliation(s)
- Alex J Plajer
- Department of Chemistry, University of Cambridge Lensfield Rd Cambridge CB2 1EW UK
| | - Felix J Rizzuto
- Department of Chemistry, University of Cambridge Lensfield Rd Cambridge CB2 1EW UK
| | | | - Yohan Gisbert
- Department of Chemistry, University of Cambridge Lensfield Rd Cambridge CB2 1EW UK
| | | | - Jonathan R Nitschke
- Department of Chemistry, University of Cambridge Lensfield Rd Cambridge CB2 1EW UK
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32
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Dutton KG, Rothschild DA, Pastore DB, Emge TJ, Lipke MC. The Influence of Redox-Active Linkers on the Stability and Physical Properties of a Highly Electroactive Porphyrin Nanoprism. Inorg Chem 2020; 59:12616-12624. [DOI: 10.1021/acs.inorgchem.0c01719] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kaitlyn G. Dutton
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Daniel A. Rothschild
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Dakota B. Pastore
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Thomas J. Emge
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Mark C. Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
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33
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Li C, Zhang B, Dong Y, Li Y, Wang P, Yu Y, Cheng L, Cao L. A tetraphenylethene-based Pd 2L 4 metallacage with aggregation-induced emission and stimuli-responsive behavior. Dalton Trans 2020; 49:8051-8055. [PMID: 32530004 DOI: 10.1039/d0dt00469c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A tetraphenylethene-based Pd2L4 metallacage was self-assembled from four TPE-pyridine ligands with two Pd2+ ions. This metallacage with D4 symmetry exhibited a classical aggregation-induced emission property in different solvents and reversible stimuli-responsive behaviour with chloride ions and silver ions, successively.
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Affiliation(s)
- Chenyang Li
- National Demonstration Center for Experimental Chemistry Education, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, P. R. China.
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34
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Wu K, Li K, Chen S, Hou Y, Lu Y, Wang J, Wei M, Pan M, Su C. The Redox Coupling Effect in a Photocatalytic Ru
II
‐Pd
II
Cage with TTF Guest as Electron Relay Mediator for Visible‐Light Hydrogen‐Evolving Promotion. Angew Chem Int Ed Engl 2020; 59:2639-2643. [DOI: 10.1002/anie.201913303] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/19/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Kai Wu
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Kang Li
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Sha Chen
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Ya‐Jun Hou
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Yu‐Lin Lu
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Jing‐Si Wang
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Mei‐Juan Wei
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Mei Pan
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Cheng‐Yong Su
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences China
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35
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Jia F, Schröder HV, Yang LP, von Essen C, Sobottka S, Sarkar B, Rissanen K, Jiang W, Schalley CA. Redox-Responsive Host-Guest Chemistry of a Flexible Cage with Naphthalene Walls. J Am Chem Soc 2020; 142:3306-3310. [PMID: 32013425 DOI: 10.1021/jacs.9b11685] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
"Naphthocage", a naphthalene-based organic cage, reveals very strong binding (up to 1010 M-1) to aromatic (di)cationic guests, i.e., the tetrathiafulvalene mono- and dication and methyl viologen. Intercalation of the guests between two naphthalene walls is mediated by C-H···O, C-H···π, and cation···π interactions. The guests can be switched into and out of the cage by redox processes with high binding selectivity. Oxidation of the flexible cage itself in the absence of a guest leads to a stable radical cation with the oxidized naphthalene intercalated between and stabilized by the other two. Encapsulated guest cations are released from the cavity upon cage oxidation, paving the way to future applications in redox-controlled guest release or novel stimuli-responsive materials.
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Affiliation(s)
- Fei Jia
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustraße 3 , 14195 Berlin , Germany.,Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Xueyuan Boulevard 1088 , Shenzhen 518055 , China
| | - Hendrik V Schröder
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustraße 3 , 14195 Berlin , Germany
| | - Liu-Pan Yang
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Xueyuan Boulevard 1088 , Shenzhen 518055 , China
| | - Carolina von Essen
- Department of Chemistry , University of Jyvaskyla , P.O. Box 35, 40014 Jyväskylä , Finland
| | - Sebastian Sobottka
- Institut für Chemie und Biochemie , Freie Universität Berlin , Fabeckstraße 34/36 , 14195 Berlin , Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie , Freie Universität Berlin , Fabeckstraße 34/36 , 14195 Berlin , Germany
| | - Kari Rissanen
- Department of Chemistry , University of Jyvaskyla , P.O. Box 35, 40014 Jyväskylä , Finland
| | - Wei Jiang
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Xueyuan Boulevard 1088 , Shenzhen 518055 , China
| | - Christoph A Schalley
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustraße 3 , 14195 Berlin , Germany
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36
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Dekhtiarenko M, Krykun S, Carré V, Aubriet F, Canevet D, Allain M, Voitenko Z, Sallé M, Goeb S. Tuning the structure and the properties of dithiafulvene metalla-assembled tweezers. Org Chem Front 2020. [DOI: 10.1039/d0qo00641f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An electroactive M2L2 metalla-macrocycle constructed through coordination driven self-assembly dimerizes upon oxidation and binds an electro-deficient substrate with a high association constant.
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Affiliation(s)
- Maksym Dekhtiarenko
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
| | - Serhii Krykun
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
| | - Vincent Carré
- LCP-A2MC
- FR 3624
- Université de Lorraine
- ICPM
- 57078 Metz Cedex 03
| | | | - David Canevet
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
| | - Magali Allain
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
| | - Zoia Voitenko
- Taras Shevchenko National University of Kyiv
- Kyiv 01033
- Ukraine
| | - Marc Sallé
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
| | - Sébastien Goeb
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
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37
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Wu K, Li K, Chen S, Hou Y, Lu Y, Wang J, Wei M, Pan M, Su C. The Redox Coupling Effect in a Photocatalytic Ru
II
‐Pd
II
Cage with TTF Guest as Electron Relay Mediator for Visible‐Light Hydrogen‐Evolving Promotion. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201913303] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Kai Wu
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Kang Li
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Sha Chen
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Ya‐Jun Hou
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Yu‐Lin Lu
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Jing‐Si Wang
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Mei‐Juan Wei
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Mei Pan
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Cheng‐Yong Su
- MOE Laboratory of Bioinorganic and Synthetic ChemistryLehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences China
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38
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Lu Z, Ronson TK, Nitschke JR. Reversible reduction drives anion ejection and C 60 binding within an Fe II 4L 6 cage. Chem Sci 2019; 11:1097-1101. [PMID: 34084365 PMCID: PMC8146419 DOI: 10.1039/c9sc05728e] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
FeII4L6 tetrahedral cage 1 was prepared from a redox-active dicationic naphthalenediimide (NDI) ligand. The +20 charge of the cage makes it a good host for anionic guests, with no binding observed for neutral aromatic molecules. Following reduction by Cp2Co, the cage released anionic guests; subsequent oxidation by AgNTf2 led to re-uptake of anions. In its reduced form, however, 1 was observed to bind neutral C60. The fullerene guest was subsequently ejected following cage re-oxidation. The guest release process was found to be facilitated by anion-mediated transport from organic to aqueous solution. Cage 1 thus employs electron transfer as a stimulus to control the uptake and release of both neutral and charged guests, through distinct pathways. FeII4L6 cage 1 binds anionic guests but not neutral guests. In its reduced form, the cage can bind neutral C60. Reduction and oxidation of the cage could thus be used as a stimulus to control the uptake and release of both neutral and charged guests.![]()
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Affiliation(s)
- Zhenpin Lu
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Tanya K Ronson
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Jonathan R Nitschke
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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39
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Huo GF, Shi X, Tu Q, Hu YX, Wu GY, Yin GQ, Li X, Xu L, Ding HM, Yang HB. Radical-Induced Hierarchical Self-Assembly Involving Supramolecular Coordination Complexes in Both Solution and Solid States. J Am Chem Soc 2019; 141:16014-16023. [PMID: 31509391 DOI: 10.1021/jacs.9b08149] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
To explore a new supramolecular interaction as the main driving force to induce hierarchical self-assembly (HSA) is of great importance in supramolecular chemistry. Herein, we present a radical-induced HSA process through the construction of well-defined rhomboidal metallacycles containing triphenylamine (TPA) moieties. The light-induced radical generation of the TPA-based metallacycle has been demonstrated, which was found to subsequently drive hierarchical self-assembly of metallacycles in both solution and solid states. The morphologies of nanovesicle structures and nanospheres resulting from hierarchical self-assembly have been well-illustrated by using TEM and high-angle annular dark-field STEM (HAADF-STEM) micrographs. The mechanism of HSA is supposed to be associated with the TPA radical interaction and metallacycle stacking interaction, which has been supported by the coarse-grained molecular dynamics simulations. This study provides important information to understand the fundamental TPA radical interaction, which thus injects new energy into the hierarchical self-assembly of supramolecular coordination complexes (SCCs). More interestingly, the stability of TPA radical cations was significantly increased in these metallacycles during the hierarchical self-assembly process, thereby opening a new way to develop stable organic radical cations in the future.
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Affiliation(s)
- Gui-Fei Huo
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Xueliang Shi
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Qian Tu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Yi-Xiong Hu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Gui-Yuan Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Guang-Qiang Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China.,Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States
| | - Xiaopeng Li
- Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States
| | - Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Hong-Ming Ding
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, School of Physical Science and Technology , Soochow University , Suzhou 215006 , P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
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40
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Yoshizawa M, Catti L. Bent Anthracene Dimers as Versatile Building Blocks for Supramolecular Capsules. Acc Chem Res 2019; 52:2392-2404. [PMID: 31347840 DOI: 10.1021/acs.accounts.9b00301] [Citation(s) in RCA: 157] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This Account provides a comprehensive summary of our 1-decade-long investigations into bent anthracene dimers as versatile building blocks for supramolecular capsules. The investigations initiated in 2008 with the design of an anthracene dimer with a meta-phenylene spacer bearing two substituents on the convex side. Using the bent polyaromatic building block, we began to develop novel supramolecular capsules from two different synthetic approaches. One is a coordination approach, which was pursued by converting the building block into a bent ligand with two pyridine units at the terminal positions. The ligands quantitatively assemble into an M2L4-type capsule through coordination bonding with metal ions. The other is a π-stacking approach, which was followed by utilizing the block as a bent amphiphilic molecule with two trimethylammonium groups at the spacer. In water, the amphiphiles spontaneously assemble into a micelle-type capsule through the hydrophobic effect and π-stacking interactions. Simple modification of the building block allowed us to prepare a wide variety of coordination capsules as well as π-stacking capsules, bearing different hydrophilic side-chains, terminal substitutions, connecting units, polyaromatic panels, or spacer units. The coordination capsule possesses a rigid cavity, with a diameter of ∼1 nm, surrounded by multiple anthracene panels. The spherical polyaromatic cavity binds various synthetic molecules (e.g., paracyclophanes, corannulene, BODIPY, and fullerene C60) in aqueous solutions. With the aid of the polyaromatic shell, photochemically and thermally reactive radical initiators and oligosulfurs are greatly stabilized in the cavity. Biomolecules such as hydrophilic sucrose and oligo(lactic acid)s as well as hydrophobic androgenic hormones are bound by the capsule with high selectivity. In addition, long amphiphilic poly(ethylene oxide)s are threaded into the closed shell of the capsule(s) to generate unusual pseudorotaxane-shaped host-guest complexes in water. In contrast, the π-stacking capsule furnishes a flexible cavity, adaptable to the size and shape of guest molecules, encircled by multiple anthracene panels. In water, the capsule binds hydrophobic fluorescent dyes (e.g., Nile red and DCM) in the cavity. Simple grinding of the bent amphiphile with highly hydrophobic nanocarbons such as fullerenes, nanographenes, and carbon nanotubes (followed by sonication) as well as metal-complexes such as Cu(II)-phthalocyanines and Mn(III)-tetraphenylporphyrins leads to the efficient formation of water-soluble host-guest complexes upon encapsulation. Red emission from otherwise water-deactivated Eu(III)-complexes is largely enhanced in water through encapsulation. Moreover, the incorporation of pH- and photoswitches into the amphiphile affords stimuli-responsive π-stacking capsules, capable of releasing bound guests by the addition of acid and light irradiation, respectively, in water. The host functions of the coordination and π-stacking capsules are complementary to each other, which enables selection of the capsule-type depending on the envisioned target. We are convinced that continued investigation of the present supramolecular capsules featuring the bent anthracene dimer and its derivatives will further increase their value as advanced molecular tools for synthetic, analytical, material, biological, and/or medical applications.
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Affiliation(s)
- Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Lorenzo Catti
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Satoh Y, Catti L, Akita M, Yoshizawa M. A Redox-Active Heterocyclic Capsule: Radical Generation, Oxygenation, and Guest Uptake/Release. J Am Chem Soc 2019; 141:12268-12273. [DOI: 10.1021/jacs.9b03419] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yoshiyuki Satoh
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Lorenzo Catti
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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42
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Zhao Z, Zhang Z, Wang H, Li X, Zhang M. Multicomponent Porphyrin-Based Tetragonal Prismatic Metallacages and their Photophysical Properties. Isr J Chem 2019; 59:299-305. [PMID: 33833470 DOI: 10.1002/ijch.201800173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Multicomponent coordination-driven self-assembly has proved to be a convenient approach to prepare advanced supramolecular coordination complexes (SCCs), especially for those with three-dimensional structures. Herein, we report the preparation of three tetragonal prismatic cages via the self-assembly of Pt(PEt3)2(OTf)2, three different linear dipyridyl ligands and porphyrin-based sodium benzoate ligands. Due to the efficient charge separation in the coordination process of Pt(PEt3)2(OTf)2 with pyridine and carboxylic acid and the directionality of metal-coordination bonds, these cages were prepared in high isolated yields (more than 90%). The absorption and emission properties as well as the singlet oxygen quantum yields of these cages were also studied, showing their potential applications as contrast agents for bio-imaging and photosensitizers for photodynamic therapy.
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Affiliation(s)
- Zhengqing Zhao
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Zeyuan Zhang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Heng Wang
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Mingming Zhang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, P. R. China
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43
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Aoki Y, O'Brien HM, Kawasaki H, Takaya H, Nakamura M. Ligand-Free Iron-Catalyzed C-F Amination of Diarylamines: A One-Pot Regioselective Synthesis of Diaryl Dihydrophenazines. Org Lett 2019; 21:461-464. [PMID: 30628796 DOI: 10.1021/acs.orglett.8b03702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A one-pot synthesis of various 5,10-diaryl-5,10-dihydrophenazines (DADHPs) from diarylamines has been achieved by using an iron-catalyzed C-F amination. Homodimerization of magnesium diarylamides, followed by defluorinative intramolecular cyclization (double ortho C-F amination) in the presence of catalytic FeCl2 and stoichiometric 1,2-dibromoethane, affords the corresponding DADHPs with complete regiocontrol. The unique high reactivity of fluorine over other halogens indicates that amination proceeds via an SNAr mechanism facilitated by iron.
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Affiliation(s)
- Yuma Aoki
- International Research Center for Elements Science, Institute for Chemical Research , Kyoto University , Uji, Kyoto 611-0011 , Japan.,Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Harry M O'Brien
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , U.K
| | - Hiroto Kawasaki
- International Research Center for Elements Science, Institute for Chemical Research , Kyoto University , Uji, Kyoto 611-0011 , Japan.,Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Hikaru Takaya
- International Research Center for Elements Science, Institute for Chemical Research , Kyoto University , Uji, Kyoto 611-0011 , Japan.,Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Masaharu Nakamura
- International Research Center for Elements Science, Institute for Chemical Research , Kyoto University , Uji, Kyoto 611-0011 , Japan.,Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku, Kyoto 615-8510 , Japan
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44
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Plessius R, Orth N, Ivanović-Burmazović I, Siegler MA, Reek JNH, van der Vlugt JI. Reversible multi-electron storage in dual-site redox-active supramolecular cages. Chem Commun (Camb) 2019; 55:12619-12622. [DOI: 10.1039/c9cc07138e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Redox-active M6L4 cages display multiple reversible redox-events, enabling switching from overall +12 to −4 charged species with reversible storage of 16 electrons.
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Affiliation(s)
- Raoul Plessius
- van’t Hoff Institute for Molecular Sciences
- University of Amsterdam
- Amsterdam
- The Netherlands
| | - Nicole Orth
- Department of Chemistry und Pharmacy
- Friedrich Alexander Universität Erlangen-Nürnberg
- 91058 Erlangen
- Germany
| | - Ivana Ivanović-Burmazović
- Department of Chemistry und Pharmacy
- Friedrich Alexander Universität Erlangen-Nürnberg
- 91058 Erlangen
- Germany
| | | | - Joost N. H. Reek
- van’t Hoff Institute for Molecular Sciences
- University of Amsterdam
- Amsterdam
- The Netherlands
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45
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Rota Martir D, Zysman-Colman E. Photoactive supramolecular cages incorporating Ru(ii) and Ir(iii) metal complexes. Chem Commun (Camb) 2019; 55:139-158. [DOI: 10.1039/c8cc08327d] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cage compounds incorporating phosphorescent Ru(ii) and Ir(iii) metal complexes possess a highly desirable set of optoelectronic and physical properties. This feature article summarizes the recent work on cage assemblies containing these metal complexes as photoactive units, highlighting our contribution to this growing field.
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Affiliation(s)
- Diego Rota Martir
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- St Andrews
- UK
| | - Eli Zysman-Colman
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- St Andrews
- UK
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46
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Hu Y, Zhang X, Xu L, Yang H. Coordination‐Driven Self‐Assembly of Functionalized Supramolecular Metallacycles: Highlighted Research during 2010–2018. Isr J Chem 2018. [DOI: 10.1002/ijch.201800102] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yi‐Xiong Hu
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University 3663 N. Zhongshan Rd. 200062 Shanghai P. R. China
| | - Xiangyi Zhang
- Department of Chemical and Materials EngineeringChinese Culture University Taipei China
| | - Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University 3663 N. Zhongshan Rd. 200062 Shanghai P. R. China
| | - Hai‐Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University 3663 N. Zhongshan Rd. 200062 Shanghai P. R. China
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47
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Steel PJ, McMorran DA. Selective Anion Recognition by a Dynamic Quadruple Helicate. Chem Asian J 2018; 14:1098-1101. [PMID: 30209886 DOI: 10.1002/asia.201801262] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/04/2018] [Indexed: 01/06/2023]
Abstract
An M2 L4 quadruple helicate, formed by wrapping four molecules of 1,4-bis(3-pyridyloxy)benzene (L1 ) about two palladium(II) centers, is shown to bind anions within its internal cavity. 1 H NMR exchange experiments provide a quantitative measure of anion selectivity and reveal a preference for ClO4 - over the other tetrahedral anions BF4 - and ReO4 - and the octahedral anion PF6 - . X-ray crystal structures of [Pd2 (L1 )4 ]4+ helicates containing ClO4 , BF4 - and I- reveal that the cavity size can dynamically change in response to the size of the guest.
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Affiliation(s)
- Peter J Steel
- Department of Chemistry, University of Canterbury, Christchurch, 8140, New Zealand
| | - David A McMorran
- Department of Chemistry Te Tari Matauranga Mata, University of Otago, PO Box 56, Dunedin, 9054, New Zealand
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48
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Kim TY, Vasdev RAS, Preston D, Crowley JD. Strategies for Reversible Guest Uptake and Release from Metallosupramolecular Architectures. Chemistry 2018; 24:14878-14890. [DOI: 10.1002/chem.201802081] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Indexed: 01/11/2023]
Affiliation(s)
- Tae Y. Kim
- Department of Chemistry; University of Otago; PO Box 56 Dunedin New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Wellington, PO Box 600; Wellington New Zealand
| | - Roan A. S. Vasdev
- Department of Chemistry; University of Otago; PO Box 56 Dunedin New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Wellington, PO Box 600; Wellington New Zealand
| | - Dan Preston
- Department of Chemistry; University of Otago; PO Box 56 Dunedin New Zealand
| | - James D. Crowley
- Department of Chemistry; University of Otago; PO Box 56 Dunedin New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Wellington, PO Box 600; Wellington New Zealand
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Zhu R, Bloch WM, Holstein JJ, Mandal S, Schäfer LV, Clever GH. Donor-Site-Directed Rational Assembly of Heteroleptic cis-[Pd 2 L 2 L' 2 ] Coordination Cages from Picolyl Ligands. Chemistry 2018; 24:12976-12982. [PMID: 29924444 PMCID: PMC6174927 DOI: 10.1002/chem.201802188] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Indexed: 01/05/2023]
Abstract
A donor-site engineering approach facilitates the formation of heteroleptic [Pd2 L2 L'2 ]4+ cage structures through a favored cis-'in2 /out2 ' spatial configuration of the methyl groups of 5- and 3-substituted bis-monodentate picolyl ligands with flat acridone and bent phenothiazine backbones. The heteroleptic cages were confirmed by ESI-MS and 2D NMR experiments as well as DFT calculations, which pointed toward a cis-configuration being energetically favored. This was further supported by the synthesis and X-ray structure of a previously unreported cis-[Pd(2-picoline)4 ]2+ complex. The formation of homoleptic structures, however, was met with considerable steric hindrance at the PdII centers, as observed by the formation of [Pd2 L3 (solvent)2 ]4+ and [Pd2 L2 (solvent)4 ]4+ species when only one type of acridone-based ligand was offered. In contrast, bent phenothiazine ligands with outside-pointing methyl groups showed the ability to form interpenetrated double-cages, as revealed by X-ray crystallography. The general route presented herein enables the assembly of uniform cis-[Pd2 L2 L'2 ]4+ coordination cages, thus furthering the possibility to increase structural and functional complexity in supramolecular systems.
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Affiliation(s)
- Rongmei Zhu
- Faculty of Chemistry and Chemical BiologyTU Dortmund UniversityOtto-Hahn-Strasse 644227DortmundGermany
- Current affiliation: School of Chemistry and Chemical EngineeringYangzhou University225002YangzhouJiangsuP.R. China
| | - Witold M. Bloch
- Faculty of Chemistry and Chemical BiologyTU Dortmund UniversityOtto-Hahn-Strasse 644227DortmundGermany
- Current affiliation: Department of Chemistry and Centre for Advanced Nanomaterials, School of Physical SciencesThe University of AdelaideAdelaideAustralia
| | - Julian J. Holstein
- Faculty of Chemistry and Chemical BiologyTU Dortmund UniversityOtto-Hahn-Strasse 644227DortmundGermany
| | - Soham Mandal
- Faculty of Chemistry and Chemical BiologyTU Dortmund UniversityOtto-Hahn-Strasse 644227DortmundGermany
| | - Lars V. Schäfer
- Center for Theoretical Chemistry, Faculty of Chemistry and BiochemistryRuhr-University44780BochumGermany
| | - Guido H. Clever
- Faculty of Chemistry and Chemical BiologyTU Dortmund UniversityOtto-Hahn-Strasse 644227DortmundGermany
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50
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Zhiquan L, Xie H, Border SE, Gallucci J, Pavlović RZ, Badjić JD. A Stimuli-Responsive Molecular Capsule with Switchable Dynamics, Chirality, and Encapsulation Characteristics. J Am Chem Soc 2018; 140:11091-11100. [PMID: 30099876 DOI: 10.1021/jacs.8b06190] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Lei Zhiquan
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Han Xie
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Sarah E. Border
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Judith Gallucci
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Radoslav Z. Pavlović
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Jovica D. Badjić
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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