1
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Wilmore JT, Beer PD. Exploiting the Mechanical Bond Effect for Enhanced Molecular Recognition and Sensing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309098. [PMID: 38174657 DOI: 10.1002/adma.202309098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/20/2023] [Indexed: 01/05/2024]
Abstract
The ubiquity of charged species in biological and industrial processes has resulted in ever-increasing interest in their selective recognition, detection, and environmental remediation. Building on the established coordination chemistry principles of the chelate and macrocyclic effects, and host preorganization, supramolecular chemists seek to construct specific 3D binding cavities reminiscent of biotic systems to enhance host-guest binding affinity and selectivity. Mechanically interlocked molecules (MIMs) present a wholly unique platform for synthetic host design, wherein topologies afforded by the mechanical bond enable the decoration of 3D cavities for non-covalent interactions with a range of target guest geometries. Notably, MIM host systems exhibit mechanical bond effect augmented affinities and selectivities for a variety of charged guest species, compared to non-interlocked acyclic and macrocycle host analogs. Furthermore, the modular nature of MIM synthesis facilitates incorporation of optical and electrochemical reporter groups, enabling fabrication of highly sensitive and specific molecular sensors. This review discusses the development of recognition and sensing MIMs, from the first reports in the late 20th century through to the present day, delineating how their topologically preorganized and dynamic host cavities enhance charged guest recognition and sensing, demonstrating the mechanical bond effect as a potent tool in future chemosensing materials.
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Affiliation(s)
- Jamie T Wilmore
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Rd, Oxford, OX1 3TA, UK
| | - Paul D Beer
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Rd, Oxford, OX1 3TA, UK
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2
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Bąk KM, Trzaskowski B, Chmielewski MJ. Anion-templated synthesis of a switchable fluorescent [2]catenane with sulfate sensing capability. Chem Sci 2024; 15:1796-1809. [PMID: 38303949 PMCID: PMC10829038 DOI: 10.1039/d3sc05086f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/16/2023] [Indexed: 02/03/2024] Open
Abstract
Anion templation strategies have facilitated the synthesis of various catenane and rotaxane hosts capable of strong and selective binding of anions in competitive solvents. However, this approach has primarily relied on positively charged precursors, limiting the structural diversity and the range of potential applications of the anion-templated mechanically interlocked molecules. Here we demonstrate the synthesis of a rare electroneutral [2]catenane using a powerful, doubly charged sulfate template and a complementary diamidocarbazole-based hydrogen bonding precursor. Owing to the unique three-dimensional hydrogen bonding cavity and the embedded carbazole fluorophores, the resulting catenane receptor functions as a sensitive fluorescent turn-ON sensor for the highly hydrophilic sulfate, even in the presence of a large excess of water. Importantly, the [2]catenane exhibits enhanced binding affinity and selectivity for sulfate over its parent macrocycle and other acyclic diamidocarbazole-based receptors. We demonstrate also, for the first time, that the co-conformation of the catenane may be controlled by reversible acid/base induced protonation and deprotonation of the anionic template, SO42-. This approach pioneers a new strategy to induce molecular motion of interlocked components using switchable anionic templates.
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Affiliation(s)
- Krzysztof M Bąk
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Bartosz Trzaskowski
- Centre of New Technologies, University of Warsaw Banacha 2c 02-097 Warsaw Poland
| | - Michał J Chmielewski
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
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3
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Nandi M, Bej S, Jana T, Ghosh P. From construction to application of a new generation of interlocked molecules composed of heteroditopic wheels. Chem Commun (Camb) 2023. [PMID: 38015500 DOI: 10.1039/d3cc03778a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Over the last few decades, research on mechanically interlocked molecules has significantly evolved owing to their unique structural features and interesting properties. A substantial percentage of the reported works have focused on the synthetic strategies, leading to the preparation of functional MIMs for their applications in the chemical, materials, and biomedical sciences. Importantly, various macrocyclic wheels with specific heteroditopicity (including phenanthroline, amide, amine, oxy-ether, isophthalamide, calixarene and triazole) and threading axles (bipyridine, phenanthroline, pyridinium, triazolium, etc.) have been designed to synthesize targeted multifunctional mononuclear/multinuclear pseudorotaxanes, rotaxanes and catenanes. The structural uniqueness of these interlocked systems is advantageous owing to the presence of mechanical bonds with specific three-dimensional cavities. Furthermore, their multi-functionalities and preorganised structural entities exhibit a high potential for versatile applications, like switching, shuttling, dynamic properties, recognition and sensing. In this feature article, we describe some of the most recent advances in the construction and chemical behaviour of a new generation of interlocked molecules, primarily focusing on heteroditopic wheels and their applications in different directions of the modern research area. Furthermore, we outline the future prospects and significant perspectives of the new generation heteroditopic wheel based interlocked molecules in different emerging areas of science.
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Affiliation(s)
- Mandira Nandi
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India.
| | - Somnath Bej
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India.
| | - Tarun Jana
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India.
| | - Pradyut Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India.
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4
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Min Tay H, Johnson TG, Docker A, Langton MJ, Beer PD. Exploiting the Catenane Mechanical Bond Effect for Selective Halide Anion Transmembrane Transport. Angew Chem Int Ed Engl 2023; 62:e202312745. [PMID: 37772928 DOI: 10.1002/anie.202312745] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 09/30/2023]
Abstract
The first examples of [2]catenanes capable of selective anion transport across a lipid bilayer are reported. The neutral halogen bonding (XB) [2]catenanes were prepared via a chloride template-directed strategy in an unprecedented demonstration of using XB⋅⋅⋅anion interactions to direct catenane assembly from all-neutral components. Anion binding experiments in aqueous-organic solvent media revealed strong halide over oxoanion selectivity, and a marked enhancement in the chloride and bromide affinities of the catenanes relative to their constituent macrocycles. The catenanes additionally displayed an anti-Hofmeister binding preference for bromide over the larger iodide anion, illustrating the efficacy of employing sigma-hole interactions in conjunction with the mechanical bond effect to tune receptor selectivity. Transmembrane anion transport studies conducted in POPC LUVs revealed that the catenanes were more effective anion transporters than the constituent macrocycles, with high chloride over hydroxide selectivity, which is critical to potential therapeutic applications of anionophores. Remarkably these outperform existing acyclic halogen bonding anionophores with regards to this selectivity. Record chloride over nitrate anion transport selectivity was also observed. This represents a rare example of the direct translation of intrinsic anion binding affinities to anion transport behaviour, and demonstrates the key role of the catenane mechanical bond effect for enhanced anion transport selectivity.
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Affiliation(s)
- Hui Min Tay
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Toby G Johnson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Andrew Docker
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Matthew J Langton
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Paul D Beer
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
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5
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Tay HM, Tse YC, Docker A, Gateley C, Thompson AL, Kuhn H, Zhang Z, Beer PD. Halogen-Bonding Heteroditopic [2]Catenanes for Recognition of Alkali Metal/Halide Ion Pairs. Angew Chem Int Ed Engl 2023; 62:e202214785. [PMID: 36440816 PMCID: PMC10108176 DOI: 10.1002/anie.202214785] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 11/29/2022]
Abstract
The first examples of halogen bonding (XB) heteroditopic homo[2]catenanes were prepared by discrete Na+ template-directed assembly of oligo(ethylene glycol) units derived from XB donor-containing macrocycles and acyclic bis-azide precursors, followed by a CuI -mediated azide-alkyne cycloaddition macrocyclisation reaction. Extensive 1 H NMR spectroscopic studies show the [2]catenane hosts exhibit positive cooperative ion-pair recognition behaviour, wherein XB-mediated halide recognition is enhanced by alkali metal cation pre-complexation. Notably, subtle changes in the catenanes' oligo(ethylene glycol) chain length dramatically alters their ion-binding affinity, stoichiometry, complexation mode, and conformational dynamics. Solution-phase and single-crystal X-ray diffraction studies provide evidence for competing host-separated and direct-contact ion-pair binding modes. We further demonstrate the [2]catenanes are capable of extracting solid alkali-metal halide salts into organic media.
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Affiliation(s)
- Hui Min Tay
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Yuen Cheong Tse
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.,Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Andrew Docker
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Christian Gateley
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Amber L Thompson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Heike Kuhn
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Zongyao Zhang
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Paul D Beer
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
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6
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Krämer J, Kang R, Grimm LM, De Cola L, Picchetti P, Biedermann F. Molecular Probes, Chemosensors, and Nanosensors for Optical Detection of Biorelevant Molecules and Ions in Aqueous Media and Biofluids. Chem Rev 2022; 122:3459-3636. [PMID: 34995461 PMCID: PMC8832467 DOI: 10.1021/acs.chemrev.1c00746] [Citation(s) in RCA: 109] [Impact Index Per Article: 54.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Synthetic molecular probes, chemosensors, and nanosensors used in combination with innovative assay protocols hold great potential for the development of robust, low-cost, and fast-responding sensors that are applicable in biofluids (urine, blood, and saliva). Particularly, the development of sensors for metabolites, neurotransmitters, drugs, and inorganic ions is highly desirable due to a lack of suitable biosensors. In addition, the monitoring and analysis of metabolic and signaling networks in cells and organisms by optical probes and chemosensors is becoming increasingly important in molecular biology and medicine. Thus, new perspectives for personalized diagnostics, theranostics, and biochemical/medical research will be unlocked when standing limitations of artificial binders and receptors are overcome. In this review, we survey synthetic sensing systems that have promising (future) application potential for the detection of small molecules, cations, and anions in aqueous media and biofluids. Special attention was given to sensing systems that provide a readily measurable optical signal through dynamic covalent chemistry, supramolecular host-guest interactions, or nanoparticles featuring plasmonic effects. This review shall also enable the reader to evaluate the current performance of molecular probes, chemosensors, and nanosensors in terms of sensitivity and selectivity with respect to practical requirement, and thereby inspiring new ideas for the development of further advanced systems.
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Affiliation(s)
- Joana Krämer
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Rui Kang
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Laura M. Grimm
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Luisa De Cola
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Dipartimento
DISFARM, University of Milano, via Camillo Golgi 19, 20133 Milano, Italy
- Department
of Molecular Biochemistry and Pharmacology, Instituto di Ricerche Farmacologiche Mario Negri, IRCCS, 20156 Milano, Italy
| | - Pierre Picchetti
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- P.P.: email,
| | - Frank Biedermann
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- F.B.: email,
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7
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Pal A, Karmakar M, Bhatta SR, Thakur A. A detailed insight into anion sensing based on intramolecular charge transfer (ICT) mechanism: A comprehensive review of the years 2016 to 2021. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214167] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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8
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Cheong Tse Y, Hein R, Mitchell EJ, Zhang Z, Beer PD. Halogen-Bonding Strapped Porphyrin BODIPY Rotaxanes for Dual Optical and Electrochemical Anion Sensing. Chemistry 2021; 27:14550-14559. [PMID: 34319624 PMCID: PMC8596797 DOI: 10.1002/chem.202102493] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Indexed: 11/13/2022]
Abstract
Anion receptors employing two distinct sensory mechanisms are rare. Herein, we report the first examples of halogen-bonding porphyrin BODIPY [2]rotaxanes capable of both fluorescent and redox electrochemical sensing of anions. 1 H NMR, UV/visible and electrochemical studies revealed rotaxane axle triazole group coordination to the zinc(II) metalloporphyrin-containing macrocycle component, serves to preorganise the rotaxane binding cavity and dramatically enhances anion binding affinities. Mechanically bonded, integrated-axle BODIPY and macrocycle strapped metalloporphyrin motifs enable the anion recognition event to be sensed by the significant quenching of the BODIPY fluorophore and cathodic perturbations of the metalloporphyrin P/P+. redox couple.
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Affiliation(s)
- Yuen Cheong Tse
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Robert Hein
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Edward J. Mitchell
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Zongyao Zhang
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Paul D. Beer
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
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9
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Guo XQ, Zhou LP, Hu SJ, Cai LX, Cheng PM, Sun QF. Hexameric Lanthanide-Organic Capsules with Tertiary Structure and Emergent Functions. J Am Chem Soc 2021; 143:6202-6210. [PMID: 33871254 DOI: 10.1021/jacs.1c01168] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Biological macromolecules always function through a collective behavior of the aggregated constituents, which usually are self-assembled together via noncovalent interactions. Likewise, artificial supramolecular assemblies, whose properties and functions are mainly derived from their primary and secondary structures, may also aggregate into high-order architectures with emergent functions not available on the individual components. Here we report the first example of an insulin-like hexamerization of lanthanide triple helicates toward a 4 nm diameter hexameric capsule via consecutive metal-directed and anion-directed assembly processes. Hierarchical chiral-sorting self-assembly endows hexamers with aggregation-induced stability and emission enhancement. Furthermore, emergent guest-encapsulation function and enantioselectivity toward terpene drugs have been realized in the late-formed central cavity of the hexamers. This study not only provides a feasible strategy for constructing sophisticated and multifunctional lanthanide-organic materials but also sheds some light on the self-assembly processes in nature.
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Affiliation(s)
- Xiao-Qing Guo
- 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.,University of Chinese Academy of Sciences, Beijing 100049, 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
| | - 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.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Li-Xuan Cai
- 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
| | - Pei-Ming Cheng
- 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
- 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.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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10
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Tay HM, Beer P. Optical sensing of anions by macrocyclic and interlocked hosts. Org Biomol Chem 2021; 19:4652-4677. [DOI: 10.1039/d1ob00601k] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review summarises recent developments in the use of macrocyclic and mechanically-interlocked host molecules as optical sensors for anions.
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Affiliation(s)
- Hui Min Tay
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | - Paul Beer
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
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11
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Evans NH. Lanthanide-Containing Rotaxanes, Catenanes, and Knots. Chempluschem 2020; 85:783-792. [PMID: 32319722 DOI: 10.1002/cplu.202000135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/03/2020] [Indexed: 12/22/2022]
Abstract
The valuable luminescence, magnetic, and catalytic properties of lanthanide cations are beginning to be exploited in conjunction with structurally exotic mechanically interlocked molecules (MIMs) such as rotaxanes, catenanes and knots. This Minireview provides an account of this rapidly developing research area commencing with the use of lanthanides in extended MIM-containing frameworks. Then, attention turns to discrete lanthanide-containing pseudorotaxanes, followed by fully interlocked rotaxanes, catenanes and knots - where lanthanides have not only been incorporated into MIM architectures but have also been used to template formation of the interlocked structure. Particular focus is paid to examples where the lanthanide MIMs have been put to useful applications, in what is still a relatively youthful avenue of research in both lanthanide coordination chemistry and the chemistry of mechanically interlocked molecules.
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Affiliation(s)
- Nicholas H Evans
- Department of Chemistry, Lancaster University, Lancaster, LA1 4YB, United Kingdom
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12
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Knighton RC, Dapin S, Beer PD. Luminescent Anion Sensing by Transition-Metal Dipyridylbenzene Complexes Incorporated into Acyclic, Macrocyclic and Interlocked Hosts. Chemistry 2020; 26:5288-5296. [PMID: 32130744 PMCID: PMC7216984 DOI: 10.1002/chem.202000661] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Indexed: 12/19/2022]
Abstract
A series of novel acyclic, macrocyclic and mechanically interlocked luminescent anion sensors have been prepared by incorporation of the isophthalamide motif into dipyridylbenzene to obtain cyclometallated complexes of platinum(II) and ruthenium(II). Both the acyclic and macrocyclic derivatives 7⋅Pt, 7⋅Ru⋅PF6 , 10⋅Pt and 10⋅Ru⋅PF6 are effective sensors for a range of halides and oxoanions. The near-infra red emitting ruthenium congeners exhibited an increased binding strength compared to platinum due to the cationic charge and thus additional electrostatic interactions. Intramolecular hydrogen-bonding between the dipyridylbenzene ligand and the amide carbonyls increases the preorganisation of both acyclic and macrocyclic metal derivatives resulting in no discernible macrocyclic effect. Interlocked analogues were also prepared, and preliminary luminescent chloride anion spectrometric titrations with 12⋅Ru⋅(PF6 )2 demonstrate a marked increase in halide binding affinity due to the complementary chloride binding pocket of the [2]rotaxane. 1 H NMR binding titrations indicate the interlocked dicationic receptor is capable of chloride recognition even in competitive 30 % aqueous mixtures.
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Affiliation(s)
| | - Sophie Dapin
- Department of ChemistryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
| | - Paul D. Beer
- Department of ChemistryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
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13
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Shan W, Gao X, Lin Y, Jin G. Template‐Free Self‐Assembly of Molecular Trefoil Knots and Double Trefoil Knots Featuring Cp*Rh Building Blocks. Chemistry 2020; 26:5093-5099. [DOI: 10.1002/chem.202000525] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/15/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Wei‐Long Shan
- State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan University 220 Handan Road Shanghai 200433 P. R. China
- School of Chemistry and Chemical EngineeringAnhui University of Technology Maanshan 243002 P. R. China
| | - Xiang Gao
- State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan University 220 Handan Road Shanghai 200433 P. R. China
| | - Yue‐Jian Lin
- State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan University 220 Handan Road Shanghai 200433 P. R. China
| | - Guo‐Xin Jin
- State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan University 220 Handan Road Shanghai 200433 P. R. China
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14
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Wang J, Zakrzewski JJ, Heczko M, Zychowicz M, Nakagawa K, Nakabayashi K, Sieklucka B, Chorazy S, Ohkoshi SI. Proton Conductive Luminescent Thermometer Based on Near-Infrared Emissive {YbCo 2} Molecular Nanomagnets. J Am Chem Soc 2020; 142:3970-3979. [PMID: 32017548 DOI: 10.1021/jacs.9b13147] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Lanthanide(III)-based coordination complexes have been explored as a source of bifunctional molecular materials combining Single-Molecule Magnet (SMM) behavior with visible-to-near-infrared photoluminescence. In pursuit of more advanced multifunctionality, the next target is to functionalize crystalline solids based on emissive molecular nanomagnets toward high proton conductivity and an efficient luminescent thermometric effect. Here, a unique multifunctional molecule-based material, (H5O2)2(H)[YbIII(hmpa)4][CoIII(CN)6]2·0.2H2O (1, hmpa = hexamethylphosphoramide), composed of molecular {YbCo2}3- anions noncovalently bonded to acidic H5O2+ and H+ ions, is reported. The resulting YbIII complexes present a slow magnetic relaxation below 6 K and room temperature NIR 4f-centered photoluminescence sensitized by [Co(CN)6]3- ions. The microporous framework, built on these emissive magnetic molecules, exhibits a high proton conductivity of the H-hopping mechanism reaching σ of 1.7 × 10-4 S·cm-1 at 97% relative humidity, which classifies 1 as a superionic conductor. Moreover, the emission pattern is strongly temperature-dependent which was utilized in achieving a highly sensitive single-center luminescent thermometer with a relative thermal sensitivity, Sr > 1% K-1 in the 50-175 K range. This work shows an unprecedented combination of magnetic, optical, and electrical functionalities in a single phase working as a proton conductive NIR-emissive thermometer based on Single-Molecule Magnets.
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Affiliation(s)
- Junhao Wang
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Jakub J Zakrzewski
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Michal Heczko
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Mikolaj Zychowicz
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Kosuke Nakagawa
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Koji Nakabayashi
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Barbara Sieklucka
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Szymon Chorazy
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Shin-Ichi Ohkoshi
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
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15
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Dang LL, Gao X, Lin YJ, Jin GX. s-Block metal ions induce structural transformations between figure-eight and double trefoil knots. Chem Sci 2020. [DOI: 10.1039/c9sc05796j] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The presence or absence of s-block metal ions induces reversible structural transformation of molecular knots.
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Affiliation(s)
- Li-Long Dang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Chemistry
- Fudan University
- Shanghai 200438
| | - Xiang Gao
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Chemistry
- Fudan University
- Shanghai 200438
| | - Yue-Jian Lin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Chemistry
- Fudan University
- Shanghai 200438
| | - Guo-Xin Jin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Chemistry
- Fudan University
- Shanghai 200438
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16
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Ramakrishnam Raju MV, Wilharm RK, Dresel MJ, McGreal ME, Mansergh JP, Marting ST, Goodpaster JD, Pierre VC. The Stability of the Complex and the Basicity of the Anion Impact the Selectivity and Affinity of Tripodal Gadolinium Complexes for Anions. Inorg Chem 2019; 58:15189-15201. [DOI: 10.1021/acs.inorgchem.9b02133] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
| | - Randall K. Wilharm
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Mark J. Dresel
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Meghan E. McGreal
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Jarrett P. Mansergh
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Spenser T. Marting
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Jason D. Goodpaster
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Valérie C. Pierre
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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17
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Zakrzewski JJ, Chorazy S, Nakabayashi K, Ohkoshi SI, Sieklucka B. Photoluminescent Lanthanide(III) Single-Molecule Magnets in Three-Dimensional Polycyanidocuprate(I)-Based Frameworks. Chemistry 2019; 25:11820-11825. [PMID: 31206906 DOI: 10.1002/chem.201902420] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Indexed: 01/01/2023]
Abstract
Three-dimensional bimetallic cyanido-bridged frameworks, [LnIII (2,2'-bipyridine N,N'-dioxide)2 (H2 O)][CuI 2 (CN)5 ]⋅5 H2 O (Ln=Dy, 1; Yb, 2), are reported. They exhibit the effect of slow relaxation of magnetization, leading to a magnetic hysteresis loop, and sensitized visible-to-near-infrared photoluminescence. Both physical properties are related to the eight-coordinated lanthanide(III) complexes embedded in the unprecedented coordination skeleton composed of symmetry-breaking polycyanidocuprate linkers. The three-dimensional d-f cyanido-bridged network was shown to serve as an efficient coordination scaffold to achieve emissive lanthanide single-molecule magnets.
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Affiliation(s)
- Jakub J Zakrzewski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Szymon Chorazy
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland.,Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Koji Nakabayashi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shin-Ichi Ohkoshi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Barbara Sieklucka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
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18
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Abstract
Cation and anion recognition have both played central roles in the development of supramolecular chemistry. Much of the associated research has focused on the development of receptors for individual cations or anions, as well as their applications in different areas. Rarely is complexation of the counterions considered. In contrast, ion pair recognition chemistry, emerging from cation and anion coordination chemistry, is a specific research field where co-complexation of both anions and cations, so-called ion pairs, is the center of focus. Systems used for the purpose, known as ion pair receptors, are typically di- or polytopic hosts that contain recognition sites for both cations and anions and which permit the concurrent binding of multiple ions. The field of ion pair recognition has blossomed during the past decades. Several smaller reviews on the topic were published roughly 5 years ago. They provided a summary of synthetic progress and detailed the various limiting ion recognition modes displayed by both acyclic and macrocyclic ion pair receptors known at the time. The present review is designed to provide a comprehensive and up-to-date overview of the chemistry of macrocycle-based ion pair receptors. We specifically focus on the relationship between structure and ion pair recognition, as well as applications of ion pair receptors in sensor development, cation and anion extraction, ion transport, and logic gate construction.
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Affiliation(s)
- Qing He
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States.,State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Gabriela I Vargas-Zúñiga
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Seung Hyun Kim
- Department of Chemistry and Research Institute of Natural Science , Gyeongsang National University , Jinju , 660-701 , Korea
| | - Sung Kuk Kim
- Department of Chemistry and Research Institute of Natural Science , Gyeongsang National University , Jinju , 660-701 , Korea
| | - Jonathan L Sessler
- Institute for Supramolecular Chemistry and Catalysis , Shanghai University , Shanghai 200444 , P.R. China.,Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
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19
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Soto MA, MacLachlan MJ. Disabling Molecular Recognition through Reversible Mechanical Stoppering. Org Lett 2019; 21:1744-1748. [PMID: 30807186 DOI: 10.1021/acs.orglett.9b00310] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Mechanical stoppering of a guest molecule prevents its self-assembly with a macrocycle unit, so that both species coexist in a medium but do not recognize each other. The application of a chemical or physical stimulus reverses mechanical stoppering and subsequently enables molecular recognition. This process, which occurs without cross-reactivity and is perceptible at the macroscopic scale, could facilitate programming on/off states in supramolecular materials and molecular devices.
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Affiliation(s)
- Miguel A Soto
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , BC V6T 1Z1 , Canada
| | - Mark J MacLachlan
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , BC V6T 1Z1 , Canada.,WPI Nano Life Science Institute , Kanazawa University , Kanazawa , 920-1192 , Japan
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20
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Sohn DH, Kim N, Jang S, Kang J. A fluoride selective water-soluble anion receptor based on a 1,2-phenylenediacetic acid and calcium ion dimer. NEW J CHEM 2019. [DOI: 10.1039/c9nj01436e] [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
The dimeric receptor 1 from 1,2-phenylenediacetic acid and calcium ions recognized fluoride ions almost exclusively in 100% water.
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Affiliation(s)
- Dae Hyup Sohn
- Department of Chemistry
- Sejong University
- Seoul 143-747
- South Korea
| | - Nayeon Kim
- Department of Chemistry
- Sejong University
- Seoul 143-747
- South Korea
| | - Soonmin Jang
- Department of Chemistry
- Sejong University
- Seoul 143-747
- South Korea
| | - Jongmin Kang
- Department of Chemistry
- Sejong University
- Seoul 143-747
- South Korea
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21
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Nandi M, Bej S, Ghosh TK, Ghosh P. A multifunctional catenated host for the efficient binding of Eu3+ and Gd3+. Chem Commun (Camb) 2019; 55:3085-3088. [DOI: 10.1039/c9cc00090a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
[2]Catenane consists of various functional groups and shows efficient binding towards Eu3+ and Gd3+. A cavity-bound catenated structure is also demonstrated by single crystal X-ray analysis.
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Affiliation(s)
- Mandira Nandi
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Somnath Bej
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Tamal Kanti Ghosh
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Pradyut Ghosh
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
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22
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Affiliation(s)
- Teresa L. Mako
- Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Joan M. Racicot
- Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Mindy Levine
- Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, Rhode Island 02881, United States
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23
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Zhang L, August DP, Zhong J, Whitehead GFS, Vitorica-Yrezabal IJ, Leigh DA. Molecular Trefoil Knot from a Trimeric Circular Helicate. J Am Chem Soc 2018. [PMID: 29537836 DOI: 10.1021/jacs.8b00738] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the two-step synthesis of a molecular trefoil knot in 90% overall yield through the self-assembly of a 12-component trimeric circular zinc helicate followed by ring closing metathesis of six pendant alkene chains. Both the trimeric circular helicate intermediate and the resulting trefoil knot were characterized by NMR spectroscopy, mass spectrometry, and X-ray crystallography.
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Affiliation(s)
- Liang Zhang
- School of Chemistry , University of Manchester , Manchester M13 9PL , U.K
| | - David P August
- School of Chemistry , University of Manchester , Manchester M13 9PL , U.K
| | - Jiankang Zhong
- School of Chemistry , University of Manchester , Manchester M13 9PL , U.K
| | | | | | - David A Leigh
- School of Chemistry , University of Manchester , Manchester M13 9PL , U.K
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24
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Oshchepkov AS, Shumilova TA, Namashivaya SR, Fedorova OA, Dorovatovskii PV, Khrustalev VN, Kataev EA. Hybrid Macrocycles for Selective Binding and Sensing of Fluoride in Aqueous Solution. J Org Chem 2018; 83:2145-2153. [DOI: 10.1021/acs.joc.7b03077] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Aleksandr S. Oshchepkov
- Institute
of Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, Chemnitz 09107, Germany
- A. N. Nesmeyanov Institute of Organoelement Compounds of RAS, Vavilova Street, 28, Moscow 119991, Russian Federation
| | - Tatiana A. Shumilova
- Institute
of Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, Chemnitz 09107, Germany
| | - Siva R. Namashivaya
- Institute
of Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, Chemnitz 09107, Germany
| | - Olga A. Fedorova
- A. N. Nesmeyanov Institute of Organoelement Compounds of RAS, Vavilova Street, 28, Moscow 119991, Russian Federation
| | - Pavel V. Dorovatovskii
- National Research Center “Kurchatov Institute”, 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
| | - Viktor N. Khrustalev
- Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay Street, Moscow 117198, Russian Federation
| | - Evgeny A. Kataev
- Institute
of Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, Chemnitz 09107, Germany
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25
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Rednic MI, Varga RA, Bende A, Grosu IG, Miclăuş M, Hădade ND, Terec A, Bogdan E, Grosu I. Supramolecular anion recognition by β-HCH. Chem Commun (Camb) 2018; 52:12322-12325. [PMID: 27722565 DOI: 10.1039/c6cc06842a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of highly ordered supramolecular architectures via cooperative C(aliphatic)-H·anion contacts between β-HCH and various anions (Cl-, Br-, I- and HSO4-) was investigated by single crystal X-ray diffractometry, molecular modelling, ESI-MS and 1H-NMR titrations.
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Affiliation(s)
- Monica I Rednic
- Babeş-Bolyai University, Department of Chemistry and CSOOMC, 11 Arany Janos, 400028, Cluj-Napoca, Cluj, Romania.
| | - Richard A Varga
- Babeş-Bolyai University, Department of Chemistry and CSOOMC, 11 Arany Janos, 400028, Cluj-Napoca, Cluj, Romania.
| | - Attila Bende
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donath, 400293, Cluj-Napoca, Romania
| | - Ioana G Grosu
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donath, 400293, Cluj-Napoca, Romania
| | - Maria Miclăuş
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donath, 400293, Cluj-Napoca, Romania
| | - Niculina D Hădade
- Babeş-Bolyai University, Department of Chemistry and CSOOMC, 11 Arany Janos, 400028, Cluj-Napoca, Cluj, Romania.
| | - Anamaria Terec
- Babeş-Bolyai University, Department of Chemistry and CSOOMC, 11 Arany Janos, 400028, Cluj-Napoca, Cluj, Romania.
| | - Elena Bogdan
- Babeş-Bolyai University, Department of Chemistry and CSOOMC, 11 Arany Janos, 400028, Cluj-Napoca, Cluj, Romania.
| | - Ion Grosu
- Babeş-Bolyai University, Department of Chemistry and CSOOMC, 11 Arany Janos, 400028, Cluj-Napoca, Cluj, Romania.
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26
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Aletti AB, Gillen DM, Gunnlaugsson T. Luminescent/colorimetric probes and (chemo-) sensors for detecting anions based on transition and lanthanide ion receptor/binding complexes. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.06.020] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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27
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Lewis JEM, Galli M, Goldup SM. Properties and emerging applications of mechanically interlocked ligands. Chem Commun (Camb) 2017; 53:298-312. [PMID: 27819362 DOI: 10.1039/c6cc07377h] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Mechanically interlocked molecules have a long and rich history as ligands thanks to the key role coordination chemistry has played in the development of high yielding passive template syntheses of rotaxanes and catenanes. In this Feature Article, we highlight the effect of the mechanical bond on the properties of metal ions bound within the sterically hindered environment of the macrocycle cavity, and discuss the emerging applications of interlocked ligands in catalysis, sensing and supramolecular materials.
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Affiliation(s)
- James E M Lewis
- Chemistry, University of Southampton, University Road, Southampton, SO17 1BJ, UK.
| | - Marzia Galli
- Chemistry, University of Southampton, University Road, Southampton, SO17 1BJ, UK.
| | - Stephen M Goldup
- Chemistry, University of Southampton, University Road, Southampton, SO17 1BJ, UK.
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28
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Chen Z, Shen Y, Li L, Zou H, Fu X, Liu Z, Wang K, Liang F. High-nuclearity heterometallic clusters with both an anion and a cation sandwiched by planar cluster units: synthesis, structure and properties. Dalton Trans 2017; 46:15032-15039. [PMID: 29063099 DOI: 10.1039/c7dt02881d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To develop high-nuclearity clusters as multi-functional materials, we prepared a new type of sandwich clusters using an anion-templated synthetic strategy. The reactions of (2R,3R)-2,3-dihydroxybutanedioylbis(salicylidene hydrazone) (H6L) with [Cu2(OAc)4(H2O)2] in the presence of alkali metal halide (NaCl, NaBr, KCl or KBr) provided four high-nuclearity clusters [MCu18L6X(C5H5N)15(DMF)3]·3DMF·6H2O (M = Na and X = Cl (1); M = Na and X = Br (2); M = K and X = Cl (3); and M = K and X = Br (4)). They represent a new type of nanoscale high-nuclearity heterometallic sandwich clusters, in which the halide anion is fully sandwiched by two planar nonanuclear clusters, and the alkali metal ion is half-sandwiched on the top of the upper planar nonanuclear cluster. The experimental magnetic data and simulating results reveal dominant antiferromagnetic interactions between metal ions in these compounds. Their dielectric constants and electric hysteresis loops were also measured.
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Affiliation(s)
- Zilu Chen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China.
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29
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Li X, Zhang M, Wang Y, Wang X, Ma H, Li P, Song W, Xia Han X, Zhao B. Direct detection of fluoride ions in aquatic samples by surface-enhanced Raman scattering. Talanta 2017; 178:9-14. [PMID: 29136913 DOI: 10.1016/j.talanta.2017.08.101] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 08/24/2017] [Accepted: 08/30/2017] [Indexed: 01/14/2023]
Abstract
Given the strong hydration propensity of fluoride ions, it is difficult to detect fluoride, especially inorganic fluoride, in aqueous samples. Resolving the issue of fluoride detection in aqueous samples is a scientific undertaking of great practical significance. Herein, we propose a new method for the sensitive and selective detection of fluoride in aqueous samples without the addition of organic solvents. The method involves surface-enhanced Raman spectroscopy using 1,4-diketo-3,6-diphenylpyrrolo[3,4-c]pyrrole (DPP) compounds and Ag nanoparticles. The method is based on a diketopyrrolopyrrole compound linked to 1-butyl iodide (DPP1), which can sense fluoride sensitively and selectively. When DPP1 was combined with Ag NPs and reacted with tetrabutylammonium fluoride or inorganic fluoride in aqueous samples, an obvious Raman enhancement was obtained at the excitation wavelength of 633nm. This response arises because the introduction of fluoride anions into the system changes the molecular orientation of DPP1 on the Ag NP substrate from horizontal to vertical, inducing a signal enhancement in the Raman spectrum. This system can detect inorganic fluoride at concentrations as low as 1.0μmolL-1 (0.018ppm), which is far below the public health service recommended levels for drinking water (0.7-1.2ppm). Furthermore, using the proposed method, a linear response for fluoride in the concentration range of 1.0 × 10-3-1.0 × 10-6molL-1 was obtained, which makes fluoride detection possible in practical samples, such as fluoride-containing toothpaste.
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Affiliation(s)
- Xueliang Li
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Ming Zhang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Yue Wang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Xiaolei Wang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Hao Ma
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Peng Li
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Wei Song
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Xiao Xia Han
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
| | - Bing Zhao
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China.
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30
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Brown A, Mennie KM, Mason O, White NG, Beer PD. Copper(ii)-directed synthesis of neutral heteroditopic [2]rotaxane ion-pair host systems incorporating hydrogen and halogen bonding anion binding cavities. Dalton Trans 2017; 46:13376-13385. [DOI: 10.1039/c7dt02832f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Neutral heteroditopic [2]rotaxane ion-pair host systems were synthesised via a copper(ii)-directed metal template strategy and shown to undergo cooperative anion recognition with a co-bound zinc(ii) cation.
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Affiliation(s)
- Asha Brown
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | - Katrina M. Mennie
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | - Owen Mason
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | - Nicholas G. White
- Research School of Chemistry
- The Australian National University
- Canberra
- Australia
| | - Paul D. Beer
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
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31
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Wang CL, Zhou L, Zhang L, Xiang JF, Rambo BM, Sessler JL, Gong HY. Discrete 1 : 1 complexes and higher order assemblies formed from aminobenzene sulphonate anions and a tetraimidazolium “molecular box”. Chem Commun (Camb) 2017; 53:3669-3672. [DOI: 10.1039/c7cc01114h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Aminobenzene sulphonate species having different isomeric patterns act as substrates for a tetracationic molecular box.
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Affiliation(s)
- Cai-Ling Wang
- College of Chemistry
- Beijing Normal University
- Beijing
- P. R. China
| | - Li Zhou
- College of Chemistry
- Beijing Normal University
- Beijing
- P. R. China
| | - Lei Zhang
- Inspection and Quarantine Technical Center of Chongqing Entry-Exit Inspection and Quarantine Bureau
- Chongqing
- P. R. China
| | - Jun-Feng Xiang
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
- University of Chinese Academy of Sciences
| | - Brett M. Rambo
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
| | - Jonathan L. Sessler
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
- Center for Supramolecular Chemistry and Catalysis
| | - Han-Yuan Gong
- College of Chemistry
- Beijing Normal University
- Beijing
- P. R. China
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32
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Gil-Ramírez G, Hoekman S, Kitching MO, Leigh DA, Vitorica-Yrezabal IJ, Zhang G. Tying a Molecular Overhand Knot of Single Handedness and Asymmetric Catalysis with the Corresponding Pseudo-D 3-Symmetric Trefoil Knot. J Am Chem Soc 2016; 138:13159-13162. [PMID: 27667319 PMCID: PMC5152939 DOI: 10.1021/jacs.6b08421] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the stereoselective synthesis of a left-handed trefoil knot from a tris(2,6-pyridinedicarboxamide) oligomer with six chiral centers using a lanthanide(III) ion template. The oligomer folds around the lanthanide ion to form an overhand knot complex of single handedness. Subsequent joining of the overhand knot end groups by ring-closing olefin metathesis affords a single enantiomer of the trefoil knot in 90% yield. The knot topology and handedness were confirmed by NMR spectroscopy, mass spectrometry, and X-ray crystallography. The pseudo-D3-symmetric knot was employed as an asymmetric catalyst in Mukaiyama aldol reactions, generating enantioselectivities of up to 83:17 er, which are significantly higher than those obtained with a comparable unknotted ligand complex.
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Affiliation(s)
- Guzmán Gil-Ramírez
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Steven Hoekman
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Matthew O Kitching
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - David A Leigh
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | | | - Gen Zhang
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
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33
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Sahoo J, Waghmode SB, Subramanian PS, Albrecht M. Specific Detection of Picric Acid and Nitrite in Aqueous Medium Using Flexible Eu(III)-Based Luminescent Probe. ChemistrySelect 2016. [DOI: 10.1002/slct.201600533] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jashobanta Sahoo
- Central Salt and Marine Chemicals Research Institute, (CSIR-CSMCRI); Bhavnagar 364002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CSMCRI; Bhavnagar Gujarat. 364 002
| | - Suresh B. Waghmode
- Department of Chemistry; Savitribai Phule Pune University (formerly University of Pune); Ganeshkhind Pune 411007
| | - Palani S. Subramanian
- Central Salt and Marine Chemicals Research Institute, (CSIR-CSMCRI); Bhavnagar 364002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CSMCRI; Bhavnagar Gujarat. 364 002
| | - Markus Albrecht
- Institut fur Organische Chemie; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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34
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Barry DE, Caffrey DF, Gunnlaugsson T. Lanthanide-directed synthesis of luminescent self-assembly supramolecular structures and mechanically bonded systems from acyclic coordinating organic ligands. Chem Soc Rev 2016; 45:3244-74. [PMID: 27137947 DOI: 10.1039/c6cs00116e] [Citation(s) in RCA: 174] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Herein some examples of the use of lanthanide ions (f-metal ions) to direct the synthesis of luminescent self-assembly systems (architectures) will be discussed. This area of lanthanide supramolecular chemistry is fast growing, thanks to the unique physical (magnetic and luminescent) and coordination properties of the lanthanides, which are often transferred to the resulting supermolecule. The emphasis herein will be on systems that are luminescent, and hence, generated by using either visibly emitting ions (such as Eu(III), Tb(III) and Sm(III)) or near infrared emitting ions (like Nd(III), Yb(III) and Er(III)), formed through the use of templating chemistry, by employing structurally simple ligands, possessing oxygen and nitrogen coordinating moieties. As the lanthanides have high coordination requirements, their use often allows for the formation of coordination compounds and supramolecular systems such as bundles, grids, helicates and interlocked molecules that are not synthetically accessible through the use of other commonly used templating ions such as transition metal ions. Hence, the use of the rare-earth metal ions can lead to the formation of unique and stable species in both solution and in the solid state, as well as functional and responsive structures.
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Affiliation(s)
- Dawn E Barry
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland.
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35
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Zhao W, Huang F, Wang Y, Li Q, Shang J, Che Y, Jiang H. Aryl-triazole foldamers with ethynyl spacers as effective receptors for halides and oxyanions. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Butler SJ. Quantitative determination of fluoride in pure water using luminescent europium complexes. Chem Commun (Camb) 2016; 51:10879-82. [PMID: 26054741 DOI: 10.1039/c5cc03428k] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two luminescent probes [Eu.L¹⁻²]⁺ are reported for the rapid detection of fluoride in water. Probes [Eu.L¹⁻²]⁺ exhibit exceptional enhancements in Eu emission in the presence of fluoride, permitting its selective determination within the environmentally relevant concentration range (20-210 μM).
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Affiliation(s)
- Stephen J Butler
- Department of Chemistry, Loughborough University, Leistershire, LE11 3TU, UK.
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37
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Langton MJ, Marques I, Robinson SW, Félix V, Beer PD. Iodide Recognition and Sensing in Water by a Halogen-Bonding Ruthenium(II)-Based Rotaxane. Chemistry 2016; 22:185-92. [PMID: 26626866 PMCID: PMC4832824 DOI: 10.1002/chem.201504018] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Indexed: 11/11/2022]
Abstract
The synthesis and anion-recognition properties of the first halogen-bonding rotaxane host to sense anions in water is described. The rotaxane features a halogen-bonding axle component, which is stoppered with water-solubilizing permethylated β-cyclodextrin motifs, and a luminescent tris(bipyridine)ruthenium(II)-based macrocycle component. (1) H NMR anion-binding titrations in D2 O reveal the halogen-bonding rotaxane to bind iodide with high affinity and with selectively over the smaller halide anions and sulfate. The binding affinity trend was explained through molecular dynamics simulations and free-energy calculations. Photo-physical investigations demonstrate the ability of the interlocked halogen-bonding host to sense iodide in water, through enhancement of the macrocycle component's Ru(II) metal-ligand charge transfer (MLCT) emission.
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Affiliation(s)
- Matthew J Langton
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA (UK)
| | - Igor Marques
- Departamento de Química, iBiMED and CICECO, Universidade de Aveiro, 3810-193 Aveiro (Portugal)
| | - Sean W Robinson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA (UK)
| | - Vítor Félix
- Departamento de Química, iBiMED and CICECO, Universidade de Aveiro, 3810-193 Aveiro (Portugal)
| | - Paul D Beer
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA (UK).
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38
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Zhang L, He Y, Zhang N, Liu D, Han J, Gong W. Construction of a novel INHIBIT logic gate through a fine-tuned assembly of anthryl fluorophores via selective anion recognition and host–guest interactions. RSC Adv 2016. [DOI: 10.1039/c5ra20120a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel ligand containing of anthryl fluorophore was achieved. The assembly and disassembly of anthryl fluorophore by Pi and β-CD as chemical inputs and emission around 500 nm as output resulted in the construction of novel INHIBIT gate.
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Affiliation(s)
- Lei Zhang
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Yilong He
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Na Zhang
- Department of Chemical Engineering
- Fushun Vocational Technology Institute
- Fushun 113122
- China
| | - Daosheng Liu
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Jiao Han
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning Shihua University
- Fushun 113001
- China
| | - Weitao Gong
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
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39
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Shang J, Zhao W, Li X, Wang Y, Jiang H. Aryl-triazole foldamers incorporating a pyridinium motif for halide anion binding in aqueous media. Chem Commun (Camb) 2016; 52:4505-8. [DOI: 10.1039/c5cc10422j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Aryl-triazole foldamers incorporating a pyridinium motif are shown to be strongly halide anion binding in aqueous solvent mixtures.
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Affiliation(s)
- Jie Shang
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Wei Zhao
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Xichen Li
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Ying Wang
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Hua Jiang
- Key Laboratory of Radiopharmaceuticals
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
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40
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Catalán AC, Tiburcio J. Self-assembly of pseudo-rotaxane and rotaxane complexes using an electrostatic slippage approach. Chem Commun (Camb) 2016; 52:9526-9. [DOI: 10.1039/c6cc04619c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The protonation of a cyclic tertiary amine, integrated into the structure of a dumbbell-shaped guest molecule, accelerates the sliding of the guest through the cavity of a crown ether macrocycle to yield a stable pseudo-rotaxane complex.
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Affiliation(s)
- Aldo C. Catalán
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados (Cinvestav)
- Ciudad de Mexico
- Mexico
| | - Jorge Tiburcio
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados (Cinvestav)
- Ciudad de Mexico
- Mexico
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41
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Yang YD, Fan CC, Rambo BM, Gong HY, Xu LJ, Xiang JF, Sessler JL. Multicomponent Self-Assembled Metal–Organic [3]Rotaxanes. J Am Chem Soc 2015; 137:12966-76. [DOI: 10.1021/jacs.5b07308] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu-Dong Yang
- College
of Chemistry, Beijing Normal University, Xinjiekouwaidajie 19, Beijing 100875, P. R. China
| | - Chuan-Cai Fan
- Department
of Chemistry, Renmin University of China, Zhongguanchundajie 59, Beijing 100872, P. R. China
| | - Brett M. Rambo
- Department
of Chemistry, The University of Texas at Austin, 105 East 24th
Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Han-Yuan Gong
- College
of Chemistry, Beijing Normal University, Xinjiekouwaidajie 19, Beijing 100875, P. R. China
| | - Li-Jin Xu
- Department
of Chemistry, Renmin University of China, Zhongguanchundajie 59, Beijing 100872, P. R. China
| | - Jun-Feng Xiang
- Institute
of Chemistry, Chinese Academy of Sciences, Zhongguanchunbeiyijie 2, Beijing 100190, P. R. China
| | - Jonathan L. Sessler
- Department
of Chemistry, The University of Texas at Austin, 105 East 24th
Street, Stop A5300, Austin, Texas 78712-1224, United States
- Department
of Chemistry, Shanghai University, Shanghai 200444, China
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42
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Affiliation(s)
- Sundus Erbas-Cakmak
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - David A. Leigh
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Charlie T. McTernan
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Alina
L. Nussbaumer
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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43
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Zhang G, Gil-Ramírez G, Markevicius A, Browne C, Vitorica-Yrezabal IJ, Leigh DA. Lanthanide Template Synthesis of Trefoil Knots of Single Handedness. J Am Chem Soc 2015. [PMID: 26214819 DOI: 10.1021/jacs.5b07069] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report on the assembly of 2,6-pyridinedicarboxamide ligands (1) with point chirality about lanthanide metal ion (Ln(3+)) templates, in which the helical chirality of the resulting entwined 3:1 ligand:metal complexes is covalently captured by ring-closing olefin metathesis to form topologically chiral molecular trefoil knots of single handedness. The ligands do not self-sort (racemic ligands form a near-statistical mixture of homoleptic and heteroleptic lanthanide complexes), but the use of only (R,R)-1 leads solely to a trefoil knot of Λ-handedness, whereas (S,S)-1 forms the Δ-trefoil knot with complete stereoselectivity. The knots and their isomeric unknot macrocycles were characterized by NMR spectroscopy, mass spectrometry, and X-ray crystallography and the expression of the chirality that results from the topology of the knots studied by circular dichroism.
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Affiliation(s)
- Gen Zhang
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Guzmán Gil-Ramírez
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Augustinas Markevicius
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Colm Browne
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | | | - David A Leigh
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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44
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45
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Liu S, Kondratuk DV, Rousseaux SAL, Gil-Ramírez G, O'Sullivan MC, Cremers J, Claridge TDW, Anderson HL. Caterpillar track complexes in template-directed synthesis and correlated molecular motion. Angew Chem Int Ed Engl 2015; 54:5355-9. [PMID: 25683453 PMCID: PMC4471551 DOI: 10.1002/anie.201412293] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 01/29/2015] [Indexed: 01/05/2023]
Abstract
Small alterations to the structure of a star-shaped template totally change its mode of operation. The hexapyridyl template directs the conversion of a porphyrin dimer to the cyclic hexamer, but deleting one pyridine site changes the product to the cyclic decamer, while deleting two binding sites changes the product to the cyclic octamer. This surprising switch in selectivity is explained by the formation of 2:1 caterpillar track complexes, in which two template wheels bind inside the nanoring. Caterpillar track complexes can also be prepared by binding the hexapyridyl template inside the 8- and 10-porphyrin nanorings. NMR exchange spectroscopy (EXSY) experiments show that these complexes exhibit correlated motion, in which the conrotatory rotation of the two template wheels is coupled to rotation of the nanoring track. In the case of the 10-porphyrin system, the correlated motion can be locked by binding palladium(II) dichloride between the two templates.
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Affiliation(s)
- Shiqi Liu
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxford, OX1 3TA (UK)
| | - Dmitry V Kondratuk
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxford, OX1 3TA (UK)
| | - Sophie A L Rousseaux
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxford, OX1 3TA (UK)
| | - Guzmán Gil-Ramírez
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxford, OX1 3TA (UK)
| | - Melanie C O'Sullivan
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxford, OX1 3TA (UK)
| | - Jonathan Cremers
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxford, OX1 3TA (UK)
| | - Tim D W Claridge
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxford, OX1 3TA (UK)
| | - Harry L Anderson
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxford, OX1 3TA (UK)
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46
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Liu S, Kondratuk DV, Rousseaux SAL, Gil‐Ramírez G, O'Sullivan MC, Cremers J, Claridge TDW, Anderson HL. Caterpillar Track Complexes in Template-Directed Synthesis and Correlated Molecular Motion. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 127:5445-5449. [PMID: 27546919 PMCID: PMC4974918 DOI: 10.1002/ange.201412293] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 01/29/2015] [Indexed: 01/03/2023]
Abstract
Small alterations to the structure of a star-shaped template totally change its mode of operation. The hexapyridyl template directs the conversion of a porphyrin dimer to the cyclic hexamer, but deleting one pyridine site changes the product to the cyclic decamer, while deleting two binding sites changes the product to the cyclic octamer. This surprising switch in selectivity is explained by the formation of 2:1 caterpillar track complexes, in which two template wheels bind inside the nanoring. Caterpillar track complexes can also be prepared by binding the hexapyridyl template inside the 8- and 10-porphyrin nanorings. NMR exchange spectroscopy (EXSY) experiments show that these complexes exhibit correlated motion, in which the conrotatory rotation of the two template wheels is coupled to rotation of the nanoring track. In the case of the 10-porphyrin system, the correlated motion can be locked by binding palladium(II) dichloride between the two templates.
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Affiliation(s)
- Shiqi Liu
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, OX1 3TA (UK)
| | - Dmitry V. Kondratuk
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, OX1 3TA (UK)
| | - Sophie A. L. Rousseaux
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, OX1 3TA (UK)
| | - Guzmán Gil‐Ramírez
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, OX1 3TA (UK)
| | - Melanie C. O'Sullivan
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, OX1 3TA (UK)
| | - Jonathan Cremers
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, OX1 3TA (UK)
| | - Tim D. W. Claridge
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, OX1 3TA (UK)
| | - Harry L. Anderson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, OX1 3TA (UK)
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47
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Gong HY, Tang F, Rambo BM, Cao R, Xiang JF, Sessler JL. Aromatic sulfonate anion-induced pseudorotaxanes: environmentally benign synthesis, selectivity, and structural characterization. Chem Commun (Camb) 2015; 51:1795-8. [DOI: 10.1039/c4cc08284b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aromatic sulfonates allow the effective construction of anion-containing pseudorotaxanes from a tetracationic macrocycle known as the “Texas box” in organic media and under organic-free aqueous conditions.
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Affiliation(s)
- Han-Yuan Gong
- College of Chemistry
- Beijing Normal University Beijing
- Xinjiekouwaidajie 19
- P. R. China
| | - Feng Tang
- Department of Chemistry
- Renmin University of China Beijing
- Zhongguanchundajie 59
- P. R. China
| | - Brett M. Rambo
- Department of Chemistry
- The University of Texas at Austin 105 E
- Austin
- USA
| | - Rui Cao
- Department of Chemistry
- Renmin University of China Beijing
- Zhongguanchundajie 59
- P. R. China
| | - Jun-Feng Xiang
- Institute of Chemistry
- Chinese Academy of Sciences Beijing
- Zhongguanchunbeiyijie 2
- P. R. China
| | - Jonathan L. Sessler
- Institute of Chemistry
- Chinese Academy of Sciences Beijing
- Zhongguanchunbeiyijie 2
- P. R. China
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48
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Saha S, Santra S, Akhuli B, Ghosh P. [2]Rotaxane with Multiple Functional Groups. J Org Chem 2014; 79:11170-8. [DOI: 10.1021/jo502235z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Subrata Saha
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Saikat Santra
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Bidyut Akhuli
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Pradyut Ghosh
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
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49
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Akae Y, Koyama Y, Kuwata S, Takata T. Cyclodextrin-Based Size-Complementary [3]Rotaxanes: Selective Synthesis and Specific Dissociation. Chemistry 2014; 20:17132-6. [DOI: 10.1002/chem.201405005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Indexed: 11/09/2022]
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50
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Ayme JF, Gil-Ramírez G, Leigh DA, Lemonnier JF, Markevicius A, Muryn CA, Zhang G. Lanthanide Template Synthesis of a Molecular Trefoil Knot. J Am Chem Soc 2014; 136:13142-5. [DOI: 10.1021/ja506886p] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jean-François Ayme
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Guzmán Gil-Ramírez
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - David A. Leigh
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Jean-François Lemonnier
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Augustinas Markevicius
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Christopher A. Muryn
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Gen Zhang
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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