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Chen X, Chen H, Fraser Stoddart J. The Story of the Little Blue Box: A Tribute to Siegfried Hünig. Angew Chem Int Ed Engl 2023; 62:e202211387. [PMID: 36131604 PMCID: PMC10099103 DOI: 10.1002/anie.202211387] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Indexed: 02/02/2023]
Abstract
The tetracationic cyclophane, cyclobis(paraquat-p-phenylene), also known as the little blue box, constitutes a modular receptor that has facilitated the discovery of many host-guest complexes and mechanically interlocked molecules during the past 35 years. Its versatility in binding small π-donors in its tetracationic state, as well as forming trisradical tricationic complexes with viologen radical cations in its doubly reduced bisradical dicationic state, renders it valuable for the construction of various stimuli-responsive materials. Since the first reports in 1988, the little blue box has been featured in over 500 publications in the literature. All this research activity would not have been possible without the seminal contributions carried out by Siegfried Hünig, who not only pioneered the syntheses of viologen-containing cyclophanes, but also revealed their rich redox chemistry in addition to their ability to undergo intramolecular π-dimerization. This Review describes how his pioneering research led to the design and synthesis of the little blue box, and how this redox-active host evolved into the key component of molecular shuttles, switches, and machines.
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Affiliation(s)
- Xiao‐Yang Chen
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIllinois 60208USA
| | - Hongliang Chen
- Stoddart Institute of Molecular ScienceDepartment of ChemistryZhejiang UniversityHangzhou310027China
- ZJU-Hangzhou Global Scientific and Technological Innovation CenterHangzhou311215China
| | - J. Fraser Stoddart
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIllinois 60208USA
- Stoddart Institute of Molecular ScienceDepartment of ChemistryZhejiang UniversityHangzhou310027China
- ZJU-Hangzhou Global Scientific and Technological Innovation CenterHangzhou311215China
- School of ChemistryUniversity of New South WalesSydneyNSW 2052Australia
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2
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Affiliation(s)
- Arthur H. G. David
- Department of Chemistry Northwestern University Evanston Illinois 60208 United States
| | - J. Fraser Stoddart
- Department of Chemistry Northwestern University Evanston Illinois 60208 United States
- School of Chemistry University of New South Wales Sydney NSW 2052 Australia
- Stoddart Institute of Molecular Science Department of Chemistry Zhejiang University Hangzhou 310021 China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311215 China
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3
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Ayme J, Dhers S, Lehn J. Triple Self-Sorting in Constitutional Dynamic Networks: Parallel Generation of Imine-Based Cu I , Fe II , and Zn II Complexes. Angew Chem Int Ed Engl 2020; 59:12484-12492. [PMID: 32286724 PMCID: PMC7383593 DOI: 10.1002/anie.202000818] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Indexed: 12/20/2022]
Abstract
Three imine-based metal complexes, having no overlap in terms of their compositions, have been simultaneously generated from the self-sorting of a constitutional dynamic library (CDL) containing three amines, three aldehydes, and three metal salts. The hierarchical ordering of the stability of the three metal complexes assembled and the leveraging of the antagonistic and agonistic relationships existing between the constituents within the constitutional dynamic network corresponding to the CDL were pivotal in achieving the sorting. Examination of the process by NMR spectroscopy showed that the self-sorting of the FeII and ZnII complexes depended on an interplay between the thermodynamic driving forces and a kinetic trap involved in their assembly. These results also exemplify the concept of "simplexity"-the fact that the output of a self-assembling system may be simplified by increasing its initial compositional complexity-as the two complexes could self-sort only in the presence of the third pair of organic components, those of the CuI complex.
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Affiliation(s)
- Jean‐François Ayme
- Institute of NanotechnologyKarlsruhe Institute of Technology76344Eggenstein-LeopoldshafenGermany
- Laboratoire de Chimie SupramoléculaireInstitut de Science et d'Ingénierie SupramoléculairesUniversité de Strasbourg8 allée Gaspard Monge67000StrasbourgFrance
| | - Sébastien Dhers
- Laboratoire de Chimie SupramoléculaireInstitut de Science et d'Ingénierie SupramoléculairesUniversité de Strasbourg8 allée Gaspard Monge67000StrasbourgFrance
| | - Jean‐Marie Lehn
- Institute of NanotechnologyKarlsruhe Institute of Technology76344Eggenstein-LeopoldshafenGermany
- Laboratoire de Chimie SupramoléculaireInstitut de Science et d'Ingénierie SupramoléculairesUniversité de Strasbourg8 allée Gaspard Monge67000StrasbourgFrance
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Ayme J, Dhers S, Lehn J. Triple Self‐Sorting in Constitutional Dynamic Networks: Parallel Generation of Imine‐Based Cu
I
, Fe
II
, and Zn
II
Complexes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000818] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jean‐François Ayme
- Institute of Nanotechnology Karlsruhe Institute of Technology 76344 Eggenstein-Leopoldshafen Germany
- Laboratoire de Chimie Supramoléculaire Institut de Science et d'Ingénierie Supramoléculaires Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Sébastien Dhers
- Laboratoire de Chimie Supramoléculaire Institut de Science et d'Ingénierie Supramoléculaires Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Jean‐Marie Lehn
- Institute of Nanotechnology Karlsruhe Institute of Technology 76344 Eggenstein-Leopoldshafen Germany
- Laboratoire de Chimie Supramoléculaire Institut de Science et d'Ingénierie Supramoléculaires Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
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5
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Feng H, Gao W, Lin Y, Jin G. Dynamic Interconversion between Solomon Link and Trapezoidal Metallacycle Ensembles Accompanying Conformational Change of the Linker. Chemistry 2019; 25:15687-15693. [DOI: 10.1002/chem.201904196] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 09/25/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Hui‐Jun Feng
- State Key Laboratory of Molecular Engineering of PolymersDepartment of ChemistryFudan University Shanghai 200433 P. R. China
| | - Wen‐Xi Gao
- State Key Laboratory of Molecular Engineering of PolymersDepartment of ChemistryFudan University Shanghai 200433 P. R. China
| | - Yue‐Jian Lin
- State Key Laboratory of Molecular Engineering of PolymersDepartment of ChemistryFudan University Shanghai 200433 P. R. China
| | - Guo‐Xin Jin
- State Key Laboratory of Molecular Engineering of PolymersDepartment of ChemistryFudan University Shanghai 200433 P. R. China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Science Shanghai 200032 P. R. China
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6
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Danon JJ, Leigh DA, Pisano S, Valero A, Vitorica‐Yrezabal IJ. A Six-Crossing Doubly Interlocked [2]Catenane with Twisted Rings, and a Molecular Granny Knot. Angew Chem Int Ed Engl 2018; 57:13833-13837. [PMID: 30152565 PMCID: PMC6221036 DOI: 10.1002/anie.201807135] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/13/2018] [Indexed: 11/17/2022]
Abstract
A molecular 6 2 3 link (a six crossing, doubly interlocked, [2]catenane with twisted rings) and a 31 #31 granny knot (a composite knot made up of two trefoil tangles of the same handedness) were constructed by ring-closing olefin metathesis of an iron(II)-coordinated 2×2 interwoven grid. The connections were directed by pendant phenyl groups to be between proximal ligand ends on the same faces of the grid. The 6 2 3 link was separated from the topoisomeric granny knot by recycling size-exclusion chromatography. The identity of each topoisomer was determined by tandem mass spectrometry and the structure of the 6 2 3 link confirmed by X-ray crystallography, which revealed two 82-membered macrocycles, each in figure-of-eight conformations, linked through both pairs of loops.
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Affiliation(s)
- Jonathan J. Danon
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - David A. Leigh
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Simone Pisano
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Alberto Valero
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
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Danon JJ, Leigh DA, Pisano S, Valero A, Vitorica‐Yrezabal IJ. A Six‐Crossing Doubly Interlocked [2]Catenane with Twisted Rings, and a Molecular Granny Knot. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807135] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jonathan J. Danon
- School of ChemistryUniversity of Manchester Oxford Road Manchester M13 9PL UK
| | - David A. Leigh
- School of ChemistryUniversity of Manchester Oxford Road Manchester M13 9PL UK
| | - Simone Pisano
- School of ChemistryUniversity of Manchester Oxford Road Manchester M13 9PL UK
| | - Alberto Valero
- School of ChemistryUniversity of Manchester Oxford Road Manchester M13 9PL UK
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Abstract
The first synthetic molecular trefoil knot was prepared in the late 1980s. However, it is only in the last few years that more complex small-molecule knot topologies have been realized through chemical synthesis. The steric restrictions imposed on molecular strands by knotting can impart significant physical and chemical properties, including chirality, strong and selective ion binding, and catalytic activity. As the number and complexity of accessible molecular knot topologies increases, it will become increasingly useful for chemists to adopt the knot terminology employed by other disciplines. Here we give an overview of synthetic strategies towards molecular knots and outline the principles of knot, braid, and tangle theory appropriate to chemistry and molecular structure.
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Affiliation(s)
| | - David A. Leigh
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
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Affiliation(s)
- Stephen D. P. Fielden
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL Großbritannien
| | - David A. Leigh
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL Großbritannien
| | - Steffen L. Woltering
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL Großbritannien
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10
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Cougnon FBL. Ein molekularer Knoten mit acht Überkreuzungen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fabien B. L. Cougnon
- Department of Organic Chemistry; University of Geneva; 30, Quai Ernest-Ansermet 1211 Genf 4 Schweiz
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11
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Cougnon FBL. Tight Embrace in a Molecular Knot with Eight Crossings. Angew Chem Int Ed Engl 2017; 56:4918-4919. [PMID: 28370994 DOI: 10.1002/anie.201701308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Indexed: 11/09/2022]
Abstract
When it takes eight to tango: Since the synthesis of the simplest of all knots, the trefoil knot, in 1989, the formation of more complex knots has remained extremely challenging. The synthesis of the most complex molecular knot made to date, the 819 , by Leigh and co-workers thus represents a major step towards building topologically complex architectures.
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Affiliation(s)
- Fabien B L Cougnon
- Department of Organic Chemistry, University of Geneva, 30, Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
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12
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Song YH, Singh N, Jung J, Kim H, Kim EH, Cheong HK, Kim Y, Chi KW. Template-Free Synthesis of a Molecular Solomon Link by Two-Component Self-Assembly. Angew Chem Int Ed Engl 2015; 55:2007-11. [DOI: 10.1002/anie.201508257] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 11/19/2015] [Indexed: 01/07/2023]
Affiliation(s)
- Young Ho Song
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
| | - Nem Singh
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
| | - Jaehoon Jung
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
| | - Hyunuk Kim
- Energy Materials Laboratory; Korea Institute of Energy Research; Daejeon 305-343 Republic of Korea
| | - Eun-Hee Kim
- Protein Structure Group; Korea Basic Science Institute; 162 Yeongudanji-Ro, Ochang Chungbuk 28119 Republic of Korea
| | - Hae-Kap Cheong
- Protein Structure Group; Korea Basic Science Institute; 162 Yeongudanji-Ro, Ochang Chungbuk 28119 Republic of Korea
| | - Yousoo Kim
- Surface and Interface Science Laboratory; RIKEN; Wako, Saitama 351-0198 Japan
| | - Ki-Whan Chi
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
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13
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Song YH, Singh N, Jung J, Kim H, Kim EH, Cheong HK, Kim Y, Chi KW. Template-Free Synthesis of a Molecular Solomon Link by Two-Component Self-Assembly. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508257] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Young Ho Song
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
| | - Nem Singh
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
| | - Jaehoon Jung
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
| | - Hyunuk Kim
- Energy Materials Laboratory; Korea Institute of Energy Research; Daejeon 305-343 Republic of Korea
| | - Eun-Hee Kim
- Protein Structure Group; Korea Basic Science Institute; 162 Yeongudanji-Ro, Ochang Chungbuk 28119 Republic of Korea
| | - Hae-Kap Cheong
- Protein Structure Group; Korea Basic Science Institute; 162 Yeongudanji-Ro, Ochang Chungbuk 28119 Republic of Korea
| | - Yousoo Kim
- Surface and Interface Science Laboratory; RIKEN; Wako, Saitama 351-0198 Japan
| | - Ki-Whan Chi
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Republic of Korea
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Prusty S, Krishnaswamy S, Bandi S, Chandrika B, Luo J, McIndoe JS, Hanan GS, Chand DK. Reversible Mechanical Interlocking of D-Shaped Molecular Karabiners bearing Coordination-Bond Loaded Gates: Route to Self-Assembled [2]Catenanes. Chemistry 2015; 21:15174-87. [DOI: 10.1002/chem.201502394] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Indexed: 12/17/2022]
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Beves JE, Danon JJ, Leigh DA, Lemonnier JF, Vitorica-Yrezabal IJ. A Solomon link through an interwoven molecular grid. Angew Chem Int Ed Engl 2015; 54:7555-9. [PMID: 25960366 PMCID: PMC4479027 DOI: 10.1002/anie.201502095] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Indexed: 11/21/2022]
Abstract
A molecular Solomon link was synthesized through the assembly of an interwoven molecular grid consisting of four bis(benzimidazolepyridyl)benzthiazolo[5,4-d]thiazole ligands and four zinc(II), iron(II), or cobalt(II) cations, followed by ring-closing olefin metathesis. NMR spectroscopy, mass spectrometry, and X-ray crystallography confirmed the doubly interlocked topology, and subsequent demetalation afforded the wholly organic Solomon link. The synthesis, in which each metal ion defines the crossing point of two ligand strands, suggests that interwoven molecular grids should be useful scaffolds for the rational construction of other topologically complex structures.
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Affiliation(s)
- Jonathon E Beves
- School of Chemistry, University of Edinburgh, The King's Buildings, West Mains Road, Edinburgh, EH9 3JJ (UK)
| | - Jonathan J Danon
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL (UK) http://www.catenane.net
| | - David A Leigh
- School of Chemistry, University of Edinburgh, The King's Buildings, West Mains Road, Edinburgh, EH9 3JJ (UK).
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL (UK) http://www.catenane.net.
| | - Jean-François Lemonnier
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL (UK) http://www.catenane.net
| | - Iñigo J Vitorica-Yrezabal
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL (UK) http://www.catenane.net
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Gil-Ramírez G, Leigh DA, Stephens AJ. Catenanes: fifty years of molecular links. Angew Chem Int Ed Engl 2015; 54:6110-50. [PMID: 25951013 PMCID: PMC4515087 DOI: 10.1002/anie.201411619] [Citation(s) in RCA: 407] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Indexed: 02/06/2023]
Abstract
Half a century after Schill and Lüttringhaus carried out the first directed synthesis of a [2]catenane, a plethora of strategies now exist for the construction of molecular Hopf links (singly interlocked rings), the simplest type of catenane. The precision and effectiveness with which suitable templates and/or noncovalent interactions can arrange building blocks has also enabled the synthesis of intricate and often beautiful higher order interlocked systems, including Solomon links, Borromean rings, and a Star of David catenane. This Review outlines the diverse strategies that exist for synthesizing catenanes in the 21st century and examines their emerging applications and the challenges that still exist for the synthesis of more complex topologies.
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Affiliation(s)
- Guzmán Gil-Ramírez
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL (UK) http://www.catenane.net
| | - David A Leigh
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL (UK) http://www.catenane.net.
| | - Alexander J Stephens
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL (UK) http://www.catenane.net
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Beves JE, Danon JJ, Leigh DA, Lemonnier JF, Vitorica-Yrezabal IJ. A Solomon Link through an Interwoven Molecular Grid. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502095] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Gil-Ramírez G, Leigh DA, Stephens AJ. Catenane: fünfzig Jahre molekulare Verschlingungen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411619] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Wood DM, Meng W, Ronson TK, Stefankiewicz AR, Sanders JKM, Nitschke JR. Guest-Induced Transformation of a Porphyrin-Edged FeII4L6Capsule into a CuIFeII2L4Fullerene Receptor. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411985] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Wood DM, Meng W, Ronson TK, Stefankiewicz AR, Sanders JKM, Nitschke JR. Guest-induced transformation of a porphyrin-edged Fe(II)4L6 capsule into a Cu(I)Fe(II)2L4 fullerene receptor. Angew Chem Int Ed Engl 2015; 54:3988-92. [PMID: 25655272 DOI: 10.1002/anie.201411985] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Indexed: 11/09/2022]
Abstract
The combination of a bent diamino(nickel(II) porphyrin) with 2-formylpyridine and Fe(II) yielded an Fe(II) 4 L6 cage. Upon treatment with the fullerenes C60 or C70 , this cage was found to transform into a new host-guest complex incorporating three Fe(II) centers and four porphyrin ligands, in an arrangement that is hypothesized to maximize π interactions between the porphyrin units of the host and the fullerene guest bound within its central cavity. The new complex shows coordinative unsaturation at one of the Fe(II) centers as the result of the incommensurate metal-to-ligand ratio, which enabled the preparation of a heterometallic cone-shaped Cu(I) Fe(II) 2 L4 adduct of C60 or C70 .
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Affiliation(s)
- Daniel M Wood
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
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He Z, Ye G, Jiang W. Imine Macrocycle with a Deep Cavity: Guest-Selected Formation ofsyn/antiConfiguration and Guest-Controlled Reconfiguration. Chemistry 2014; 21:3005-12. [DOI: 10.1002/chem.201405912] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Indexed: 12/15/2022]
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Campbell CJ, Leigh DA, Vitorica-Yrezabal IJ, Woltering SL. A Simple and Highly Effective Ligand System for the Copper(I)-Mediated Assembly of Rotaxanes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407817] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Campbell CJ, Leigh DA, Vitorica-Yrezabal IJ, Woltering SL. A simple and highly effective ligand system for the copper(I)-mediated assembly of rotaxanes. Angew Chem Int Ed Engl 2014; 53:13771-4. [PMID: 25314000 PMCID: PMC4502974 DOI: 10.1002/anie.201407817] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/16/2014] [Indexed: 11/05/2022]
Abstract
A [2]rotaxane was produced through the assembly of a picolinaldehyde, an amine, and a bipyridine macrocycle around a Cu(I) template by imine bond formation in close-to-quantitative yield. An analogous [3]rotaxane is obtained in excellent yield by replacing the amine with a diamine, thus showing the suitability of the system for the construction of higher order interlocked structures. The rotaxanes are formed within a few minutes simply through mixing the components in solution at room temperature and they can be isolated through removal of the solvent or precipitation.
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Affiliation(s)
- Christopher J Campbell
- School of Chemistry, University of Edinburgh, The King's Buildings, West Mains Road, Edinburgh EH9 3JJ (UK)
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24
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Schouwey C, Holstein JJ, Scopelliti R, Zhurov KO, Nagornov KO, Tsybin YO, Smart OS, Bricogne G, Severin K. Self-Assembly of a Giant Molecular Solomon Link from 30 Subcomponents. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407144] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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25
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Schouwey C, Holstein JJ, Scopelliti R, Zhurov KO, Nagornov KO, Tsybin YO, Smart OS, Bricogne G, Severin K. Self-Assembly of a Giant Molecular Solomon Link from 30 Subcomponents. Angew Chem Int Ed Engl 2014; 53:11261-5. [DOI: 10.1002/anie.201407144] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Indexed: 11/09/2022]
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Ayme JF, Beves JE, Campbell CJ, Leigh DA. The self-sorting behavior of circular helicates and molecular knots and links. Angew Chem Int Ed Engl 2014; 53:7823-7. [PMID: 24899408 PMCID: PMC4321334 DOI: 10.1002/anie.201404270] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Indexed: 11/10/2022]
Abstract
We report on multicomponent self-sorting to form open circular helicates of different sizes from a primary monoamine, Fe(II) ions, and dialdehyde ligand strands that differ in length and structure by only two oxygen atoms. The corresponding closed circular helicates that are formed from a diamine--a molecular Solomon link and a pentafoil knot--also self-sort, but up to two of the Solomon-link-forming ligand strands can be accommodated within the pentafoil knot structure and are either incorporated or omitted depending on the stage that the components are mixed.
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Affiliation(s)
- Jean-François Ayme
- J.-F. Ayme, Prof. D. A. Leigh School of Chemistry, University of ManchesterOxford Road, Manchester M13 9PL (UK)
- Dr. J. E. Beves, Dr. C. J. Campbell, Prof. D. A. Leigh School of Chemistry, University of Edinburgh, The King's
BuildingsWest Mains Road, Edinburgh EH9 3JJ (UK)
| | - Jonathon E Beves
- J.-F. Ayme, Prof. D. A. Leigh School of Chemistry, University of ManchesterOxford Road, Manchester M13 9PL (UK)
- Dr. J. E. Beves, Dr. C. J. Campbell, Prof. D. A. Leigh School of Chemistry, University of Edinburgh, The King's
BuildingsWest Mains Road, Edinburgh EH9 3JJ (UK)
| | - Christopher J Campbell
- J.-F. Ayme, Prof. D. A. Leigh School of Chemistry, University of ManchesterOxford Road, Manchester M13 9PL (UK)
- Dr. J. E. Beves, Dr. C. J. Campbell, Prof. D. A. Leigh School of Chemistry, University of Edinburgh, The King's
BuildingsWest Mains Road, Edinburgh EH9 3JJ (UK)
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Ayme JF, Beves JE, Campbell CJ, Leigh DA. The Self-Sorting Behavior of Circular Helicates and Molecular Knots and Links. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404270] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Mosquera J, Zarra S, Nitschke JR. Aqueous Anion Receptors through Reduction of Subcomponent Self-Assembled Structures. Angew Chem Int Ed Engl 2013; 53:1556-9. [DOI: 10.1002/anie.201308117] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 10/31/2013] [Indexed: 12/28/2022]
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Mosquera J, Zarra S, Nitschke JR. Aqueous Anion Receptors through Reduction of Subcomponent Self-Assembled Structures. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308117] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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