101
|
Qin L, Guan X, Yang C, Huang JS, Che CM. Near-Infrared Phosphorescent Supramolecular Alkyl/Aryl-Iridium Porphyrin Assemblies by Axial Coordination. Chemistry 2018; 24:14400-14408. [DOI: 10.1002/chem.201803238] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 07/30/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Lin Qin
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Xiangguo Guan
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Jie-Sheng Huang
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials and Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
- HKU Shenzhen Institute of Research and Innovation; Shenzhen 518053 P. R. China
| |
Collapse
|
102
|
Zhang L, Stephens AJ, Nussbaumer AL, Lemonnier JF, Jurček P, Vitorica-Yrezabal IJ, Leigh DA. Stereoselective synthesis of a composite knot with nine crossings. Nat Chem 2018; 10:1083-1088. [DOI: 10.1038/s41557-018-0124-6] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 07/20/2018] [Indexed: 01/10/2023]
|
103
|
Prusty S, Podh MB, Purohit CS. A Molecular Figure of Eight: Synthesis and Characterization. ChemistrySelect 2018. [DOI: 10.1002/slct.201801982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sidheswari Prusty
- School of Chemical Science; National Institute of Science Education and Research, (NISER),Bhubaneswar, Jatni; Khurda 752050 Odisha India
- Homi Bhabha National Institute, Mumbai; India
| | - Mana Bhanjan Podh
- School of Chemical Science; National Institute of Science Education and Research, (NISER),Bhubaneswar, Jatni; Khurda 752050 Odisha India
- Homi Bhabha National Institute, Mumbai; India
| | - Chandra Shekhar Purohit
- School of Chemical Science; National Institute of Science Education and Research, (NISER),Bhubaneswar, Jatni; Khurda 752050 Odisha India
- Homi Bhabha National Institute, Mumbai; India
| |
Collapse
|
104
|
Cougnon FBL, Caprice K, Pupier M, Bauzá A, Frontera A. A Strategy to Synthesize Molecular Knots and Links Using the Hydrophobic Effect. J Am Chem Soc 2018; 140:12442-12450. [DOI: 10.1021/jacs.8b05220] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Fabien B. L. Cougnon
- Department of Organic Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland
| | - Kenji Caprice
- Department of Organic Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland
| | - Marion Pupier
- Department of Organic Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland
| | - Antonio Bauzá
- Department de Química, Universitat de les Illes Balears, Carretera de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain
| | - Antonio Frontera
- Department de Química, Universitat de les Illes Balears, Carretera de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain
| |
Collapse
|
105
|
Leigh DA, Pirvu L, Schaufelberger F, Tetlow DJ, Zhang L. Securing a Supramolecular Architecture by Tying a Stopper Knot. Angew Chem Int Ed Engl 2018; 57:10484-10488. [PMID: 29708636 PMCID: PMC6099318 DOI: 10.1002/anie.201803871] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Indexed: 11/11/2022]
Abstract
We report on a rotaxane-like architecture secured by the in situ tying of an overhand knot in the tris(2,6-pyridyldicarboxamide) region of the axle through complexation with a lanthanide ion (Lu3+ ). The increase in steric bulk caused by the knotting locks a crown ether onto the thread. Removal of the lutetium ion unties the knot, and when the axle binding site for the ring is deactivated, the macrocycle spontaneously dethreads. When the binding interaction is switched on again, the crown ether rethreads over the 10 nm length of the untangled strand. The overhand knot can be retied, relocking the threaded structure, by once again adding lutetium ions.
Collapse
Affiliation(s)
- David A. Leigh
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Lucian Pirvu
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | | | - Daniel J. Tetlow
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Liang Zhang
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| |
Collapse
|
106
|
Leigh DA, Pirvu L, Schaufelberger F, Tetlow DJ, Zhang L. Securing a Supramolecular Architecture by Tying a Stopper Knot. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803871] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- David A. Leigh
- School of ChemistryUniversity of Manchester Oxford Road Manchester M13 9PL UK
| | - Lucian Pirvu
- School of ChemistryUniversity of Manchester Oxford Road Manchester M13 9PL UK
| | | | - Daniel J. Tetlow
- School of ChemistryUniversity of Manchester Oxford Road Manchester M13 9PL UK
| | - Liang Zhang
- School of ChemistryUniversity of Manchester Oxford Road Manchester M13 9PL UK
| |
Collapse
|
107
|
Marenda M, Orlandini E, Micheletti C. Discovering privileged topologies of molecular knots with self-assembling models. Nat Commun 2018; 9:3051. [PMID: 30076306 PMCID: PMC6076300 DOI: 10.1038/s41467-018-05413-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 07/03/2018] [Indexed: 11/09/2022] Open
Abstract
Despite the several available strategies to build complex supramolecular constructs, only a handful of different molecular knots have been synthesised so far. Here, in response to the quest for further designable topologies, we use Monte Carlo sampling and molecular dynamics simulations, informed by general principles of supramolecular assembly, as a discovery tool for thermodynamically and kinetically accessible knot types made of helical templates. By combining this approach with the exhaustive enumeration of molecular braiding patterns applicable to more general template geometries, we find that only few selected shapes have the closed, symmetric and quasi-planar character typical of synthetic knots. The corresponding collection of admissible topologies is extremely restricted. It covers all known molecular knots but it especially includes a limited set of novel complex ones that have not yet been obtained experimentally, such as 10124 and 15n41185, making them privileged targets for future self-assembling experiments.
Collapse
Affiliation(s)
- Mattia Marenda
- SISSA, International School for Advanced Studies, via Bonomea 265, I-34136, Trieste, Italy
| | - Enzo Orlandini
- Dipartimento di Fisica e Astronomia "Galileo Galilei", sezione INFN, Università degli Studi di Padova, via Marzolo 8, I-35131, Padova, Italy
| | - Cristian Micheletti
- SISSA, International School for Advanced Studies, via Bonomea 265, I-34136, Trieste, Italy.
| |
Collapse
|
108
|
Tsukamoto T, Sasahara R, Muranaka A, Miura Y, Suzuki Y, Kimura M, Miyagawa S, Kawasaki T, Kobayashi N, Uchiyama M, Tokunaga Y. Synthesis of a Chiral [2]Rotaxane: Induction of a Helical Structure through Double Threading. Org Lett 2018; 20:4745-4748. [PMID: 30058808 DOI: 10.1021/acs.orglett.8b01727] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A helically chiral [2]rotaxane featuring two ammonium ion recognition sites in the dumbbell-like component and a calix-bis-crown ether as the macrocyclic component was synthesized, but with no chirality in either individual component. The enantiomeric nature of the isomers, separated through chiral HPLC, was apparent in their CD spectra, which were mirror images for all wavelengths.
Collapse
Affiliation(s)
- Toshihiro Tsukamoto
- Department of Materials Science and Engineering, Faculty of Engineering , Fukui University , Bunkyo , Fukui 910-8507 , Japan
| | - Ryota Sasahara
- Department of Materials Science and Engineering, Faculty of Engineering , Fukui University , Bunkyo , Fukui 910-8507 , Japan
| | - Atsuya Muranaka
- Elements Chemistry Laboratory , RIKEN Cluster for Pioneering Research , 2-1 Hirosawa , Wako-shi , Saitama 351-0198 , Japan
| | - Yuzuki Miura
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Yu Suzuki
- Tenure-Track Program for Innovative Research , University of Fukui , Bunkyo , Fukui 910-8507 , Japan
| | - Masaki Kimura
- Department of Materials Science and Engineering, Faculty of Engineering , Fukui University , Bunkyo , Fukui 910-8507 , Japan
| | - Shinobu Miyagawa
- Department of Materials Science and Engineering, Faculty of Engineering , Fukui University , Bunkyo , Fukui 910-8507 , Japan
| | - Tsuneomi Kawasaki
- Department of Applied Chemistry , Tokyo University of Science , Kagurazaka, Shinjuku-ku, Tokyo 162-8601 , Japan
| | - Nagao Kobayashi
- Faculty of Textile Science and Technology , Shinshu University , Tokida, Ueda , Nagano 386-8567 , Japan
| | - Masanobu Uchiyama
- Elements Chemistry Laboratory , RIKEN Cluster for Pioneering Research , 2-1 Hirosawa , Wako-shi , Saitama 351-0198 , Japan.,Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Yuji Tokunaga
- Department of Materials Science and Engineering, Faculty of Engineering , Fukui University , Bunkyo , Fukui 910-8507 , Japan
| |
Collapse
|
109
|
Hashemi SM, Ravnik M. Nematic colloidal knots in topological environments. SOFT MATTER 2018; 14:4935-4945. [PMID: 29740657 DOI: 10.1039/c8sm00539g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The role of environment in shaping material properties is of great significance, but less is known about how non-trivial topology of the environment couples to material states, which can be of non-trivial topology themselves. In this paper, we demonstrate the role of the topology of the environment on the formation of complex nematic fields and defect structures, specifically in the system of nematic colloidal knots. The topological environments around knotted colloidal particles are suggested to exist as spherical surface-patterned nematic cavities imposing radial, uniform or hyperbolic nematic profiles. We show that topologically different nematic environments significantly affect and create differences in the colloidal field structure created within the environment, such as the location, profile and number of topological defects. Specifically, we demonstrate that topological environments in combination with knotted colloidal particles of non-trivial topology lead to the formation of diverse nematic knotted and linked fields. These fields are different adaptations of the knotted shape of the colloidal particles, creating knots and links of topological defects as well as escaped-core defect-like solitonic structures. These are observed in chiral nematic media but here are stabilised in achiral nematic media as a result of the distinct shape of the knotted colloidal particle, with a double helix segment and nematic environmental patterns. More generally, this paper is a contribution towards understanding the role of environment, especially its topology, on the response and defect formation in elastic fields, such as in nematic liquid crystal colloids.
Collapse
Affiliation(s)
- S Masoomeh Hashemi
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, Ljubljana, 1000, Slovenia.
| | | |
Collapse
|
110
|
Bloch WM, Holstein JJ, Dittrich B, Hiller W, Clever GH. Hierarchical Assembly of an Interlocked M 8 L 16 Container. Angew Chem Int Ed Engl 2018; 57:5534-5538. [PMID: 29392809 PMCID: PMC5947565 DOI: 10.1002/anie.201800490] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Indexed: 01/01/2023]
Abstract
The self-assembly of eight PdII cations and sixteen phenanthrene-derived bridging ligands with 60° bite angles yielded a novel M8 L16 metallosupramolecular architecture composed of two interlocked D4h -symmetric barrel-shaped containers. Mass spectrometry, NMR spectroscopy, and X-ray analysis revealed this self-assembled structure to be a very large "Hopf link" catenane featuring channel-like cavities, which are occupied by NO3- anions. The importance of the anions as catenation templates became imminent when we observed the nitrate-triggered structural rearrangement of a mixture of M3 L6 and M4 L8 assemblies formed in the presence of BF4- anions into the same interlocked molecule. Furthermore, the densely packed structure of the M8 L16 catenane was exploited in the preparation of a hexyloxy-functionalized analogue, which further self-assembled into vesicle-like aggregates in a reversible manner.
Collapse
Affiliation(s)
- Witold M. Bloch
- Department of Chemistry and Chemical BiologyTU Dortmund UniversityOtto-Hahn-Straße 644227DortmundGermany
- Department of Chemistry and Centre for Advanced NanomaterialsSchool of Physical SciencesThe University of AdelaideAdelaideAustralia
| | - Julian J. Holstein
- Department of Chemistry and Chemical BiologyTU Dortmund UniversityOtto-Hahn-Straße 644227DortmundGermany
| | - Birger Dittrich
- Institute for Inorganic Chemistry and Structural ChemistryHeinrich-Heine University DüsseldorfUniversitätsstraße 140225DüsseldorfGermany
| | - Wolf Hiller
- Department of Chemistry and Chemical BiologyTU Dortmund UniversityOtto-Hahn-Straße 644227DortmundGermany
| | - Guido H. Clever
- Department of Chemistry and Chemical BiologyTU Dortmund UniversityOtto-Hahn-Straße 644227DortmundGermany
| |
Collapse
|
111
|
Chaur Valencia MN, Zuluaga Corrales HF, Martínez G. Electronic and electrochemical properties of grid-type metal ion complexes (Fe+2 and Co2+) with a pyridine-pyrimidine-pyridine based bis(hydrazone). REVISTA COLOMBIANA DE QUÍMICA 2018. [DOI: 10.15446/rev.colomb.quim.v47n2.66081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Se reporta la síntesis de nuevos complejos metálicos de Co2+ y Fe2+ tipo rejilla que contienen como ligando orgánico una doble hidrazona altamente soluble en solventes orgánicos. Los datos obtenidos de resonancia magnética nuclear (RMN 1H), espectroscopía infrarroja con transformada de Fourier (FT-IR) y análisis elemental indican que los complejos adoptaron una estructura de tipo rejilla. Las propiedades electrónicas de las metalo-rejillas fueron analizadas a través de espectroscopía UV-Vis en cloroformo, metanol y diclorometano. Adicionalmente, se realizaron medidas de voltamperometría cíclica y voltametría de onda cuadrada en DMF. Los complejos exhibieron dos procesos de oxidación atribuidos al ligando orgánico y a varios eventos reductivos que comprometían al ligando y a los centros metálicos, por tanto, la interacción entre la naturaleza del ion metálico y la estructura del ligando fue analizada en detalle. Estos resultados representan un avance en la química de metalo-rejillas no solo por los escasos reportes de propiedades electroquímicas encontrados en la literatura, sino también por el diseño de nuevos ligandos hidrazónicos de alta solubilidad y fácil preparación.
Collapse
|
112
|
Brandl T, Hoffmann V, Pannwitz A, Häussinger D, Neuburger M, Fuhr O, Bernhard S, Wenger OS, Mayor M. Chiral macrocyclic terpyridine complexes. Chem Sci 2018; 9:3837-3843. [PMID: 29780516 PMCID: PMC5941204 DOI: 10.1039/c7sc05285e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/22/2018] [Indexed: 11/21/2022] Open
Abstract
Interlinking of two terpyridine ligands results in mononuclear chiral metal complexes (Fe and Ru) which were separated into their enantiomers.
The syntheses of novel chiral M(ii) bis(terpyridine) cage complexes Fe(L1)2-c and Ru(L1)2-c are described. The extraordinary design of the precursors Fe(L1)2 and Ru(L1)2 allows perfect preorganization for the final closing step. Due to the rigidity of the spacers between the two terpyridine moieties, the two isolated enantiomers barely racemize at room temperature in solution. The stable and axially chiral bis(terpyridine) Fe(ii) and Ru(ii) complexes were fully characterized by NMR-spectroscopy, UV-Vis spectroscopy, electrochemical measurements, high resolution mass spectrometry, circular dichroism measurements, and X-ray structural analysis.
Collapse
Affiliation(s)
- Thomas Brandl
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland .
| | - Viktor Hoffmann
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland .
| | - Andrea Pannwitz
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland .
| | - Daniel Häussinger
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland .
| | - Markus Neuburger
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland .
| | - Olaf Fuhr
- Institute for Nanotechnology (INT) , Karlsruhe Institute of Technology (KIT) , P. O. Box 3640 , 76021 Karlsruhe , Germany
| | - Stefan Bernhard
- Department of Chemistry , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , USA
| | - Oliver S Wenger
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland .
| | - Marcel Mayor
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland . .,Institute for Nanotechnology (INT) , Karlsruhe Institute of Technology (KIT) , P. O. Box 3640 , 76021 Karlsruhe , Germany.,Lehn Institute of Functional Materials (LFM) , Sun Yat Sen University (SYSU) , XinGangXi Rd. 135 , 510275 Guangzhou , P. R. China
| |
Collapse
|
113
|
Rao S, Ye X, Zhang Q, Gao C, Wang W, Qu D. Light‐Induced Cyclization of A [
c
2]Daisy‐Chain Rotaxane to Form a Shrinkable Double‐Lasso Macrocycle. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Si‐Jia Rao
- School of Chemistry and Molecular EngineeringKey Laboratory for Advanced Materials and Institute of Fine ChemicalsEast China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| | - Xu‐Hao Ye
- School of Chemistry and Molecular EngineeringKey Laboratory for Advanced Materials and Institute of Fine ChemicalsEast China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| | - Qi Zhang
- School of Chemistry and Molecular EngineeringKey Laboratory for Advanced Materials and Institute of Fine ChemicalsEast China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| | - Chuan Gao
- School of Chemistry and Molecular EngineeringKey Laboratory for Advanced Materials and Institute of Fine ChemicalsEast China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| | - Wen‐Zhi Wang
- School of Chemistry and Molecular EngineeringKey Laboratory for Advanced Materials and Institute of Fine ChemicalsEast China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| | - Da‐Hui Qu
- School of Chemistry and Molecular EngineeringKey Laboratory for Advanced Materials and Institute of Fine ChemicalsEast China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| |
Collapse
|
114
|
Bloch WM, Holstein JJ, Dittrich B, Hiller W, Clever GH. Hierarchischer Aufbau eines verflochtenen M8L16-Containers. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800490] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Witold M. Bloch
- Fakultät für Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Deutschland
- Department of Chemistry and Centre for Advanced Nanomaterials; School of Physical Sciences; The University of Adelaide; Adelaide Australien
| | - Julian J. Holstein
- Fakultät für Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Deutschland
| | - Birger Dittrich
- Institut für Anorganische Chemie und Strukturchemie; Heinrich-Heine Universität Düsseldorf; Universitätsstraße 1 40225 Düsseldorf Deutschland
| | - Wolf Hiller
- Fakultät für Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Deutschland
| | - Guido H. Clever
- Fakultät für Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Deutschland
| |
Collapse
|
115
|
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.
Collapse
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
| |
Collapse
|
116
|
Lewis JEM, Beer PD, Loeb SJ, Goldup SM. Metal ions in the synthesis of interlocked molecules and materials. Chem Soc Rev 2018; 46:2577-2591. [PMID: 28447678 DOI: 10.1039/c7cs00199a] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The use of metal ions to template the synthesis of catenanes by Sauvage and co-workers was a pivotal moment in the development of the field of interlocked molecules. In this Review Article we shall examine the different roles metal-ligand interactions play in modern syntheses of interlocked molecules and materials, with a particular focus on seminal contributions and the advantages and disadvantages of employing metal ligand interactions.
Collapse
Affiliation(s)
- James E M Lewis
- Chemistry, University of Southampton, University Road, Southampton, SO17 1BJ, UK.
| | | | | | | |
Collapse
|
117
|
Sathiyajith C, Shaikh RR, Han Q, Zhang Y, Meguellati K, Yang YW. Biological and related applications of pillar[n]arenes. Chem Commun (Camb) 2018; 53:677-696. [PMID: 27942626 DOI: 10.1039/c6cc08967d] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pillar[n]arenes are a new class of synthetic supramolecular macrocycles streamlined by their particular pillar-shaped architecture which consists of an electron-rich cavity and two fine-tuneable rims. The ease and diversity of the functionalization of the two rims open possibilities for the design of new architectures, topological isomers, and scaffolds. Significantly, this emerging class of macrocyclic receptors offers a unique platform for biological purposes. This review article covers the most recent contributions from the pillar[n]arene field in terms of artificial membrane transport systems, controlled drug delivery systems, biomedical imaging, biosensors, cell adhesion, fluorescent sensing, and pesticide detection based on host-guest interactions. The review also uniquely describes the properties of sub-units that make pillar[n]arenes suitable for biological applications and it provides a detailed outline for the design of new innovative pillar-like structures with specific properties to open up a new avenue for pillar[n]arene chemistry.
Collapse
Affiliation(s)
- CuhaWijay Sathiyajith
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Rafik Rajjak Shaikh
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Qian Han
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Yue Zhang
- The First Clinical College, Harbin Medical University, 23 Youzheng Street, Harbin, 150001, P. R. China.
| | - Kamel Meguellati
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Ying-Wei Yang
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| |
Collapse
|
118
|
Rao SJ, Zhang Q, Ye XH, Gao C, Qu DH. Integrative Self-Sorting: One-Pot Synthesis of a Hetero[4]rotaxane from a Daisy-Chain-Containing Hetero[4]pseudorotaxane. Chem Asian J 2018; 13:815-821. [PMID: 29424064 DOI: 10.1002/asia.201800011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/06/2018] [Indexed: 12/22/2022]
Abstract
The structural complexity of mechanically interlocked molecules are very attractive to chemists owing to the challenges they present. In this article, novel mechanically interlocked molecules with a daisy-chain-containing hetero[4]rotaxane motif were efficiently synthesized. In addition, a novel integrative self-sorting strategy is demonstrated, involving an ABB-type (A for host, dibenzo-24-crown-8 (DB24C8), and B for guest, ammonium salt sites) monomer and a macrocycle host, benzo-21-crown-7 (B21C7), in which the assembled species in hydrogen-bonding-supported solvent only includes a novel daisy-chain-containing hetero[4]pseudorotaxane. The found self-sorting process involves the integrative recognition between B21C7 macrocycles and carefully designed components simultaneously containing two types of secondary ammonium ions and a host molecule, DB24C8 crown ether. The self-sorting strategy is integrative to undertake self-recognition behavior to form one single species of pseudorotaxane compared with the previous report. This self-sorting system can be used for the efficient one-pot synthesis of a daisy-chain-containing hetero[4]rotaxane in a good yield. The structure of hetero[4]rotaxane was confirmed by 1 H NMR spectroscopy and high-resolution electrospray ionization (HR-ESI) mass spectrometry.
Collapse
Affiliation(s)
- Si-Jia Rao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road No. 130, Shanghai, 200237, China
| | - Qi Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road No. 130, Shanghai, 200237, China
| | - Xu-Hao Ye
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road No. 130, Shanghai, 200237, China
| | - Chuan Gao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road No. 130, Shanghai, 200237, China
| | - Da-Hui Qu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road No. 130, Shanghai, 200237, China
| |
Collapse
|
119
|
Soh BW, Narsimhan V, Klotz AR, Doyle PS. Knots modify the coil-stretch transition in linear DNA polymers. SOFT MATTER 2018; 14:1689-1698. [PMID: 29423476 DOI: 10.1039/c7sm02195j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We perform single-molecule DNA experiments to investigate the relaxation dynamics of knotted polymers and examine the steady-state behavior of knotted polymers in elongational fields. The occurrence of a knot reduces the relaxation time of a molecule and leads to a shift in the molecule's coil-stretch transition to larger strain rates. We measure chain extension and extension fluctuations as a function of strain rate for unknotted and knotted molecules. The curves for knotted molecules can be collapsed onto the unknotted curves by defining an effective Weissenberg number based on the measured knotted relaxation time in the low extension regime, or a relaxation time based on Rouse/Zimm scaling theories in the high extension regime. Because a knot reduces a molecule's relaxation time, we observe that knot untying near the coil-stretch transition can result in dramatic changes in the molecule's conformation. For example, a knotted molecule at a given strain rate can experience a stretch-coil transition, followed by a coil-stretch transition, after the knot partially or fully unties.
Collapse
Affiliation(s)
- Beatrice W Soh
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
| | - Vivek Narsimhan
- Department of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Alexander R Klotz
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
| | - Patrick S Doyle
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
| |
Collapse
|
120
|
Affiliation(s)
- Jean-Marie Lehn
- University of Strasbourg Institute of Advanced Study (USIAS) ISIS; 8 allée Gaspard Monge 67000 Strasbourg France
| |
Collapse
|
121
|
Caprice K, Pupier M, Kruve A, Schalley CA, Cougnon FBL. Imine-based [2]catenanes in water. Chem Sci 2018; 9:1317-1322. [PMID: 29675178 PMCID: PMC5887103 DOI: 10.1039/c7sc04901c] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 12/18/2017] [Indexed: 01/07/2023] Open
Abstract
We report the efficient condensation of imine-based macrocycles from dialdehyde A and aliphatic diamines B n in pure water. Within the libraries, we identified a family of homologous amphiphilic [2]catenanes, whose self-assembly is primarily driven by the hydrophobic effect. The length and odd-even character of the diamine alkyl linker dictate both the yield and the conformation of the [2]catenanes, whose particular thermodynamic stability further shifts the overall equilibrium in favour of imine condensation. These findings highlight the role played by solvophobic effects in the self-assembly of complex architectures.
Collapse
Affiliation(s)
- Kenji Caprice
- Department of Organic Chemistry , University of Geneva , 30 Quai Ernest Ansermet , 1211 Geneva 4 , Switzerland .
| | - Marion Pupier
- Department of Organic Chemistry , University of Geneva , 30 Quai Ernest Ansermet , 1211 Geneva 4 , Switzerland .
| | - Anneli Kruve
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustraße 3 , 14195 Berlin , Germany
| | - Christoph A Schalley
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustraße 3 , 14195 Berlin , Germany
| | - Fabien B L Cougnon
- Department of Organic Chemistry , University of Geneva , 30 Quai Ernest Ansermet , 1211 Geneva 4 , Switzerland .
| |
Collapse
|
122
|
Yang L, Jing X, An B, He C, Yang Y, Duan C. Binding of anions in triply interlocked coordination catenanes and dynamic allostery for dehalogenation reactions. Chem Sci 2018; 9:1050-1057. [PMID: 29675152 PMCID: PMC5883946 DOI: 10.1039/c7sc04070a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 11/30/2017] [Indexed: 01/17/2023] Open
Abstract
By synergistic combination of multicomponent self-assembly and template-directed approaches, triply interlocked metal organic catenanes that consist of two isolated chirally identical tetrahedrons were constructed and stabilized as thermodynamic minima. In the presence of suitable template anions, the structural conversion from the isolated tetrahedral conformers into locked catenanes occurred via the cleavage of an intrinsically reversible coordination bond in each of the tetrahedrons, followed by the reengineering and interlocking of two fragments with the regeneration of the broken coordination bonds. The presence of several kinds of individual pocket that were attributed to the triply interlocked patterns enabled the possibility of encapsulating different anions, allowing the dynamic allostery between the unlocked/locked conformers to promote the dehalogenation reaction of 3-bromo-cyclohexene efficiently, as with the use of dehalogenase enzymes. The interlocked structures could be unlocked into two individual tetrahedrons through removal of the well-matched anion templates. The stability and reversibility of the locked/unlocked structures were further confirmed by the catching/releasing process that accompanied emission switching, providing opportunities for the system to be a dynamic molecular logic system.
Collapse
Affiliation(s)
- Linlin Yang
- State Key Laboratory of Fine Chemicals , College of Zhang Dayu , Dalian University of Technology , Dalian , 116024 , P. R. China .
| | - Xu Jing
- State Key Laboratory of Fine Chemicals , College of Zhang Dayu , Dalian University of Technology , Dalian , 116024 , P. R. China .
| | - Bowen An
- State Key Laboratory of Fine Chemicals , College of Zhang Dayu , Dalian University of Technology , Dalian , 116024 , P. R. China .
| | - Cheng He
- State Key Laboratory of Fine Chemicals , College of Zhang Dayu , Dalian University of Technology , Dalian , 116024 , P. R. China .
| | - Yang Yang
- State Key Laboratory of Fine Chemicals , College of Zhang Dayu , Dalian University of Technology , Dalian , 116024 , P. R. China .
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals , College of Zhang Dayu , Dalian University of Technology , Dalian , 116024 , P. R. China .
| |
Collapse
|
123
|
Roberts DA, Pilgrim BS, Nitschke JR. Covalent post-assembly modification in metallosupramolecular chemistry. Chem Soc Rev 2018; 47:626-644. [DOI: 10.1039/c6cs00907g] [Citation(s) in RCA: 150] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review examines the growing variety of covalent reactions used to achieve the post-assembly modification of self-assembled metallosupramolecular complexes.
Collapse
|
124
|
Findlay JA, Crowley JD. Functional nanomachines: Recent advances in synthetic molecular machinery. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2017.12.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
125
|
Hewson SW, Mullen KM. Understanding coordination equilibria in solution and gel-phase [2]rotaxanes. Org Biomol Chem 2018; 16:8569-8578. [DOI: 10.1039/c8ob02304b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An active-metal template approach has been use to synthesise solution and surface bound addressable [2]rotaxanes giving unique insights into thermodynamic equilibria in interlocked structures.
Collapse
Affiliation(s)
- Sean W. Hewson
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
| | - Kathleen M. Mullen
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
| |
Collapse
|
126
|
Khalil G, Barloy L, Kyritsakas N, Mobian P, Henry M. From monomeric complexes to double-stranded helicates constructed around trans-TiO4N2 motifs with intramolecular inter-ligand hydrogen-bonding interactions. Dalton Trans 2018; 47:11113-11122. [DOI: 10.1039/c8dt01343h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monomeric and double-stranded helicates are built from trans-TiO4N2 motifs. Intramolecular hydrogen bonds govern the framework of these species. The strength of these interactions has been investigated.
Collapse
Affiliation(s)
- Georges Khalil
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Laurent Barloy
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Nathalie Kyritsakas
- Laboratoire de Tectonique Moléculaire
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Pierre Mobian
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Marc Henry
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| |
Collapse
|
127
|
Au-Yeung HY, Yee CC, Hung Ng AW, Hu K. Strategies To Assemble Catenanes with Multiple Interlocked Macrocycles. Inorg Chem 2017; 57:3475-3485. [DOI: 10.1021/acs.inorgchem.7b02523] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ho Yu Au-Yeung
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Chi-Chung Yee
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Antony Wing Hung Ng
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Keling Hu
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| |
Collapse
|
128
|
Huang YG, Wu SQ, Deng WH, Xu G, Hu FL, Hill JP, Wei W, Su SQ, Shrestha LK, Sato O, Wu MY, Hong MC, Ariga K. Selective CO 2 Capture and High Proton Conductivity of a Functional Star-of-David Catenane Metal-Organic Framework. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1703301. [PMID: 28960582 DOI: 10.1002/adma.201703301] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/07/2017] [Indexed: 06/07/2023]
Abstract
Network structures based on Star-of-David catenanes with multiple superior functionalities have been so far elusive, although numerous topologically interesting networks are synthesized. Here, a metal-organic framework featuring fused Star-of-David catenanes is reported. Two triangular metallacycles with opposite handedness are triply intertwined forming a Star-of-David catenane. Each catenane fuses with its six neighbors to generate a porous twofold intercatenated gyroid framework. The compound possesses exceptional stability and exhibits multiple functionalities including highly selective CO2 capture, high proton conductivity, and coexistence of slow magnetic relaxation and long-range ordering.
Collapse
Affiliation(s)
- You-Gui Huang
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Science, Xiamen, 361021, China
- World Premier International (WPI) Center for Materials Nanoarchitectonics (MANA), Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395, Japan
| | - Shu-Qi Wu
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395, Japan
| | - Wei-Hua Deng
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian, 350002, China
| | - Gang Xu
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian, 350002, China
| | - Fa-Lu Hu
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian, 350002, China
| | - Jonathan P Hill
- World Premier International (WPI) Center for Materials Nanoarchitectonics (MANA), Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Wei Wei
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Sheng-Qun Su
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395, Japan
| | - Lok Kumar Shrestha
- World Premier International (WPI) Center for Materials Nanoarchitectonics (MANA), Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Osamu Sato
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395, Japan
| | - Ming-Yan Wu
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian, 350002, China
| | - Mao-Chun Hong
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian, 350002, China
| | - Katsuhiko Ariga
- World Premier International (WPI) Center for Materials Nanoarchitectonics (MANA), Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Graduate School of Frontier Science, The University of Tokyo, Kashiwa, 277-0827, Japan
| |
Collapse
|
129
|
Baggi G, Loeb SJ. Rotationally Active Ligands: Dialing-Up Multiple Interlocked Co-Conformations for Silver(I) Coordination. Chemistry 2017; 23:14163-14166. [DOI: 10.1002/chem.201703485] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Indexed: 01/20/2023]
Affiliation(s)
- Giorgio Baggi
- Department of Chemistry and Biochemistry; University of Windsor; Windsor Ontario N9B 3P4 Canada
| | - Stephen J. Loeb
- Department of Chemistry and Biochemistry; University of Windsor; Windsor Ontario N9B 3P4 Canada
| |
Collapse
|
130
|
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.
Collapse
Affiliation(s)
| | - David A. Leigh
- School of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | | |
Collapse
|
131
|
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
| |
Collapse
|
132
|
Jiang Z, Li Y, Wang M, Liu D, Yuan J, Chen M, Wang J, Newkome GR, Sun W, Li X, Wang P. Constructing High-Generation Sierpiński Triangles by Molecular Puzzling. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705480] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhilong Jiang
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - Yiming Li
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
- Department of Chemistry; University of South Florida; Tampa FL 78666 USA
| | - Ming Wang
- State Key Laboratory of Supramolecular Structure and Materials; College of Chemistry; Jilin University; Changchun Jilin- 130012 China
| | - Die Liu
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - Jie Yuan
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - Mingzhao Chen
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - Jun Wang
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - George R. Newkome
- Departments of Polymer Science; Maurice Morton Institute of Polymer Science; Department of Polymer Engineering and Chemistry; The University of Akron; Akron OH 44325 USA
| | - Wei Sun
- College of Mineral Processing and Bioengineering; Central South University; Changsha Hunan- 410083 China
| | - Xiaopeng Li
- Department of Chemistry; University of South Florida; Tampa FL 78666 USA
| | - Pingshan Wang
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| |
Collapse
|
133
|
Jiang Z, Li Y, Wang M, Liu D, Yuan J, Chen M, Wang J, Newkome GR, Sun W, Li X, Wang P. Constructing High-Generation Sierpiński Triangles by Molecular Puzzling. Angew Chem Int Ed Engl 2017; 56:11450-11455. [DOI: 10.1002/anie.201705480] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 06/28/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Zhilong Jiang
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - Yiming Li
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
- Department of Chemistry; University of South Florida; Tampa FL 78666 USA
| | - Ming Wang
- State Key Laboratory of Supramolecular Structure and Materials; College of Chemistry; Jilin University; Changchun Jilin- 130012 China
| | - Die Liu
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - Jie Yuan
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - Mingzhao Chen
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - Jun Wang
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| | - George R. Newkome
- Departments of Polymer Science; Maurice Morton Institute of Polymer Science; Department of Polymer Engineering and Chemistry; The University of Akron; Akron OH 44325 USA
| | - Wei Sun
- College of Mineral Processing and Bioengineering; Central South University; Changsha Hunan- 410083 China
| | - Xiaopeng Li
- Department of Chemistry; University of South Florida; Tampa FL 78666 USA
| | - Pingshan Wang
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan- 410083 China
| |
Collapse
|
134
|
Affiliation(s)
- Chuan Gao
- Key Laboratory for Advanced
Materials and Institute of Fine Chemicals, School of Chemistry and
Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhou-Lin Luan
- Key Laboratory for Advanced
Materials and Institute of Fine Chemicals, School of Chemistry and
Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Qi Zhang
- Key Laboratory for Advanced
Materials and Institute of Fine Chemicals, School of Chemistry and
Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Si-Jia Rao
- Key Laboratory for Advanced
Materials and Institute of Fine Chemicals, School of Chemistry and
Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Da-Hui Qu
- Key Laboratory for Advanced
Materials and Institute of Fine Chemicals, School of Chemistry and
Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - He Tian
- Key Laboratory for Advanced
Materials and Institute of Fine Chemicals, School of Chemistry and
Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| |
Collapse
|
135
|
Sequence and Architectural Control in Glycopolymer Synthesis. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700212] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/21/2017] [Indexed: 01/10/2023]
|
136
|
Da Silva Rodrigues R, Mullen KM. Surface-Assembled Mechanically Interlocked Architectures. Chempluschem 2017; 82:814-825. [PMID: 31961569 DOI: 10.1002/cplu.201700065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/09/2017] [Indexed: 01/30/2023]
Abstract
Since the advent of supramolecular chemistry, there has been keen interest in the synthesis of interlocked molecules, given their unique potential to act as receptors, molecular machines and even motors. Despite advances in the complexity of molecular machines that can be synthesised and operated in solution, reports of the operation or even attachment of complex supramolecular systems on solid surfaces are less common. Synthetic challenges and a lack of adequate characterisation techniques to monitor the thermodynamic and kinetic influences governing assembly at the solution-surface interface has slowed progress in this area of research. This Review looks at the developments in the field of covalently assembled interlocked architectures on gold, silica and polymer surfaces, highlighting the differences observed between solution and surface assembly of these unique structures.
Collapse
Affiliation(s)
- Rafael Da Silva Rodrigues
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, QLD, 4001, Australia
| | - Kathleen M Mullen
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, QLD, 4001, Australia
| |
Collapse
|
137
|
Zhu K, Baggi G, Vukotic VN, Loeb SJ. Reversible mechanical protection: building a 3D "suit" around a T-shaped benzimidazole axle. Chem Sci 2017; 8:3898-3904. [PMID: 28626559 PMCID: PMC5465563 DOI: 10.1039/c7sc00790f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 03/14/2017] [Indexed: 12/13/2022] Open
Abstract
The T-shaped benzimidazolium/crown ether recognition motif was used to prepare suit[1]anes. These novel mechanically interlocked molecules (MIMs) were fully characterized by 1H and 13C NMR spectroscopy, single-crystal X-ray diffraction, UV-vis absorption and fluorescence spectroscopy. By conversion to a suit[1]ane, a simple benzimidazole was shown to be protected from deprotonation by strong base. Moreover, it was demonstrated that this unique three-dimensional encapsulation can be made reversible, thus introducing the concept of "reversible mechanical protection"; a protecting methodology that may have potential applications in synthetic organic chemistry and the design of molecular machinery.
Collapse
Affiliation(s)
- Kelong Zhu
- School of Chemistry , Sun Yat-Sen University , Guangzhou , 510275 , P. R. China .
| | - Giorgio Baggi
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , Ontario N9B 3P4 , Canada .
| | - V Nicholas Vukotic
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , Ontario N9B 3P4 , Canada .
| | - Stephen J Loeb
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , Ontario N9B 3P4 , Canada .
| |
Collapse
|
138
|
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
| |
Collapse
|
139
|
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.
Collapse
Affiliation(s)
- Fabien B L Cougnon
- Department of Organic Chemistry, University of Geneva, 30, Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
| |
Collapse
|
140
|
Song B, Zhang Z, Wang K, Hsu C, Bolarinwa O, Wang J, Li Y, Yin G, Rivera E, Yang H, Liu C, Xu B, Li X. Direct Self‐Assembly of a 2D and 3D Star of David. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701417] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bo Song
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Zhe Zhang
- Department of Chemistry University of South Florida Tampa FL 33620 USA
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, and School of Chemistry Central China Normal University Wuhan 430079 P.R. China
| | - Kun Wang
- Single Molecule Study Laboratory College of Engineering and Nanoscale Science and Engineering Center University of Georgia Athens GA 30602 USA
| | - Chih‐Hao Hsu
- Department of Polymer Science College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325 USA
| | - Olapeju Bolarinwa
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Jing Wang
- Department of Polymer Science College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325 USA
| | - Yiming Li
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Guang‐Qiang Yin
- Department of Chemistry University of South Florida Tampa FL 33620 USA
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes Department of Chemistry East China Normal University Shanghai 200062 P.R. China
| | - Edwin Rivera
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Hai‐Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes Department of Chemistry East China Normal University Shanghai 200062 P.R. China
| | - Changlin Liu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, and School of Chemistry Central China Normal University Wuhan 430079 P.R. China
| | - Bingqian Xu
- Single Molecule Study Laboratory College of Engineering and Nanoscale Science and Engineering Center University of Georgia Athens GA 30602 USA
| | - Xiaopeng Li
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| |
Collapse
|
141
|
Song B, Zhang Z, Wang K, Hsu CH, Bolarinwa O, Wang J, Li Y, Yin GQ, Rivera E, Yang HB, Liu C, Xu B, Li X. Direct Self-Assembly of a 2D and 3D Star of David. Angew Chem Int Ed Engl 2017; 56:5258-5262. [PMID: 28382756 DOI: 10.1002/anie.201701417] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Indexed: 12/31/2022]
Abstract
Two- and three-dimensional metallosupramolecules shaped like a Star of David were synthesized by the self-assembly of a tetratopic pyridyl ligand with a 180° diplatinum(II) motif and PdII ions, respectively. In contrast to other strategies, such as template-directed synthesis and stepwise self-assembly, this design enables the formation of 2D and 3D structures in one step and high yield. The structures were characterized by both one-dimensional (1 H, 13 C, 31 P) and two-dimensional (COSY, NOESY, DOSY) NMR spectroscopy, ESI-MS, ion-mobility mass spectrometry (IM-MS), AFM, and TEM. The stabilities of the 2D and 3D structures were measured and compared by gradient tandem mass spectrometry (gMS2 ). The high stability of the 3D Star of David was correlated to its high density of coordination sites (DOCS).
Collapse
Affiliation(s)
- Bo Song
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Zhe Zhang
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA.,Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, and School of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China
| | - Kun Wang
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia, Athens, GA, 30602, USA
| | - Chih-Hao Hsu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325, USA
| | - Olapeju Bolarinwa
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Jing Wang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325, USA
| | - Yiming Li
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Guang-Qiang Yin
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA.,Shanghai Key Laboratory of Green Chemistry and Chemical, Processes, Department of Chemistry, East China Normal University, Shanghai, 200062, P.R. China
| | - Edwin Rivera
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes, Department of Chemistry, East China Normal University, Shanghai, 200062, P.R. China
| | - Changlin Liu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, and School of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China
| | - Bingqian Xu
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia, Athens, GA, 30602, USA
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| |
Collapse
|
142
|
Synthesizing topological structures containing RNA. Nat Commun 2017; 8:14936. [PMID: 28361879 PMCID: PMC5381007 DOI: 10.1038/ncomms14936] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 02/15/2017] [Indexed: 12/27/2022] Open
Abstract
Though knotting and entanglement have been observed in DNA and proteins, their existence in RNA remains an enigma. Synthetic RNA topological structures are significant for understanding the physical and biological properties pertaining to RNA topology, and these properties in turn could facilitate identifying naturally occurring topologically nontrivial RNA molecules. Here we show that topological structures containing single-stranded RNA (ssRNA) free of strong base pairing interactions can be created either by configuring RNA-DNA hybrid four-way junctions or by template-directed synthesis with a single-stranded DNA (ssDNA) topological structure. By using a constructed ssRNA knot as a highly sensitive topological probe, we find that Escherichia coli DNA topoisomerase I has low RNA topoisomerase activity and that the R173A point mutation abolishes the unknotting activity for ssRNA, but not for ssDNA. Furthermore, we discover the topological inhibition of reverse transcription (RT) and obtain different RT-PCR patterns for an ssRNA knot and circle of the same sequence.
Collapse
|
143
|
Lin Q, Hou X, Ke C. Ring Shuttling Controls Macroscopic Motion in a Three-Dimensional Printed Polyrotaxane Monolith. Angew Chem Int Ed Engl 2017; 56:4452-4457. [DOI: 10.1002/anie.201612440] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/12/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Qianming Lin
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| | - Xisen Hou
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| | - Chenfeng Ke
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| |
Collapse
|
144
|
Lin Q, Hou X, Ke C. Ring Shuttling Controls Macroscopic Motion in a Three-Dimensional Printed Polyrotaxane Monolith. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612440] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Qianming Lin
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| | - Xisen Hou
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| | - Chenfeng Ke
- Department of Chemistry; Dartmouth College; 41 College Street Hanover NH 03755 USA
| |
Collapse
|
145
|
Jansze SM, Wise MD, Vologzhanina AV, Scopelliti R, Severin K. Pd II2L 4-type coordination cages up to three nanometers in size. Chem Sci 2017; 8:1901-1908. [PMID: 28567267 PMCID: PMC5444114 DOI: 10.1039/c6sc04732g] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 11/09/2016] [Indexed: 12/25/2022] Open
Abstract
The utilization of large ligands in coordination-based self-assembly represents an attractive strategy for the construction of supramolecular assemblies more than two nanometers in size. However, the implementation of this strategy is hampered by the fact that the preparation of such ligands often requires substantial synthetic effort. Herein, we describe a simple one-step protocol, which allows large bipyridyl ligands with a bent shape to be synthesized from easily accessible and/or commercially available starting materials. The ligands were used to construct PdII2L4-type coordination cages of unprecedented size. Furthermore, we provide evidence that these cages may be stabilized by close intramolecular packing of lipophilic ligand side chains. Packing effects of this kind are frequently encountered in protein assemblies, but they are seldom used as a design element in metallasupramolecular chemistry.
Collapse
Affiliation(s)
- Suzanne M Jansze
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Matthew D Wise
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Anna V Vologzhanina
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences , 119991 Moscow , Russia
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| |
Collapse
|
146
|
Kumar V, Pilati T, Terraneo G, Meyer F, Metrangolo P, Resnati G. Halogen bonded Borromean networks by design: topology invariance and metric tuning in a library of multi-component systems. Chem Sci 2017; 8:1801-1810. [PMID: 28694953 PMCID: PMC5477818 DOI: 10.1039/c6sc04478f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 10/20/2016] [Indexed: 12/31/2022] Open
Abstract
A library of supramolecular anionic networks showing Borromean interpenetration has been prepared by self-assembly of crypt-222, several metal or ammonium halides, and five bis-homologous α,ω-diiodoperfluoroalkanes. Halogen bonding has driven the formation of these anionic networks. Borromean entanglement has been obtained starting from all the four used cations, all the three used anions, but only two of the five used diiodoperfluoroalkanes. As the change of the diiodoperfluoroalkane, the cation, or the anion has a different relative effect on the metrics and bondings of the self-assembled systems, it can be generalized that bonding, namely energetic, features play here a less influential role than metric features in determining the topology of the prepared tetra-component cocrystals. This conclusion may hold true for other multi-component systems and may function as a general heuristic principle when pursuing the preparation of multi-component systems having the same topology but different composition.
Collapse
Affiliation(s)
- Vijith Kumar
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
| | - Tullio Pilati
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
| | - Giancarlo Terraneo
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
| | - Franck Meyer
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
| | - Pierangelo Metrangolo
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
- VTT-Technical Research Centre of Finland , P. O. Box 1000, FI-02044 VTT , Finland
| | - Giuseppe Resnati
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
| |
Collapse
|
147
|
Cao PF, Rong LH, Mangadlao JD, Advincula RC. Synthesizing a Trefoil Knotted Block Copolymer via Ring-Expansion Strategy. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Peng-Fei Cao
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | | | | | | |
Collapse
|
148
|
|
149
|
Zhang L, Lin L, Liu D, Lin YJ, Li ZH, Jin GX. Stacking Interactions Induced Selective Conformation of Discrete Aromatic Arrays and Borromean Rings. J Am Chem Soc 2017; 139:1653-1660. [DOI: 10.1021/jacs.6b11968] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Long Zhang
- Shanghai Key Laboratory of
Molecular Catalysis and Innovative Materials, State Key Laboratory
of Molecular Engineering of Polymers, Collaborative Innovation Center
of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Lin Lin
- Shanghai Key Laboratory of
Molecular Catalysis and Innovative Materials, State Key Laboratory
of Molecular Engineering of Polymers, Collaborative Innovation Center
of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Dong Liu
- Shanghai Key Laboratory of
Molecular Catalysis and Innovative Materials, State Key Laboratory
of Molecular Engineering of Polymers, Collaborative Innovation Center
of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Yue-Jian Lin
- Shanghai Key Laboratory of
Molecular Catalysis and Innovative Materials, State Key Laboratory
of Molecular Engineering of Polymers, Collaborative Innovation Center
of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Zhen-Hua Li
- Shanghai Key Laboratory of
Molecular Catalysis and Innovative Materials, State Key Laboratory
of Molecular Engineering of Polymers, Collaborative Innovation Center
of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Guo-Xin Jin
- Shanghai Key Laboratory of
Molecular Catalysis and Innovative Materials, State Key Laboratory
of Molecular Engineering of Polymers, Collaborative Innovation Center
of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| |
Collapse
|
150
|
Danon JJ, Krüger A, Leigh DA, Lemonnier JF, Stephens AJ, Vitorica-Yrezabal IJ, Woltering SL. Braiding a molecular knot with eight crossings. Science 2017; 355:159-162. [DOI: 10.1126/science.aal1619] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 12/13/2016] [Indexed: 01/16/2023]
|