1
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Maeda M, De Feyter S, Tahara K. Chiral Solvent-Induced Homochiral Hierarchical Molecular Assemblies at the Liquid/Solid Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:15071-15079. [PMID: 38982679 DOI: 10.1021/acs.langmuir.4c01430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
We herein investigate the formation of homochiral hierarchical self-assembled molecular networks (SAMNs) via chirality induction by the coadsorption of a chiral solvent at the liquid/graphite interface by means of scanning tunneling microscopy (STM). In a mixture of achiral solvents, 1-hexanoic acid, and 1,2,4-trichlorobenzene, an achiral dehydrobenzo[12]annulene (DBA) derivative with three alkoxy and three hydroxy groups in an alternating manner forms chiral hierarchical triangular cluster structures through dynamic self-sorting. Enantiomorphous domains appear in equal probability. On the other hand, in chiral 2-methyl-1-hexanoic acid as a solvent, this molecule produces (i) homochiral small triangular clusters at a low solute concentration, (ii) a chirality-biased hierarchical structure consisting of triangular cluster structures with different cluster sizes at a medium concentration, and (iii) a dense structure with no chirality bias at a high concentration. We attribute the concentration-dependent degree of the chirality transmission to the number of coadsorbed solvent molecules in the SAMNs and to the difference in nucleus structure and size in the initial stage of the SAMN formation.
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Affiliation(s)
- Matsuhiro Maeda
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200 F, Leuven 3001, Belgium
| | - Kazukuni Tahara
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan
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2
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Lago-Silva M, Fernández-Míguez M, Rodríguez R, Quiñoá E, Freire F. Stimuli-responsive synthetic helical polymers. Chem Soc Rev 2024; 53:793-852. [PMID: 38105704 DOI: 10.1039/d3cs00952a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Synthetic dynamic helical polymers (supramolecular and covalent) and foldamers share the helix as a structural motif. Although the materials are different, these systems also share many structural properties, such as helix induction or conformational communication mechanisms. The introduction of stimuli responsive building blocks or monomer repeating units in these materials triggers conformational or structural changes, due to the presence/absence of the external stimulus, which are transmitted to the helix resulting in different effects, such as assymetry amplification, helix inversion or even changes in the helical scaffold (elongation, J/H helical aggregates). In this review, we show through selected examples how different stimuli (e.g., temperature, solvents, cations, anions, redox, chiral additives, pH or light) can alter the helical structures of dynamic helical polymers (covalent and supramolecular) and foldamers acting on the conformational composition or molecular structure of their components, which is also transmitted to the macromolecular helical structure.
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Affiliation(s)
- María Lago-Silva
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Manuel Fernández-Míguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
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3
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Wang L, Cheng Q, Hao A, Xing P. Biogenetic Chiral Deep Eutectic Solvents that Produce Self-Assembled Chiroptical Materials. Angew Chem Int Ed Engl 2023; 62:e202313536. [PMID: 37750571 DOI: 10.1002/anie.202313536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 09/27/2023]
Abstract
Deep eutectic solvents (DESs) show particular properties compared to ionic liquids and other traditional organic solvents. Controlled synthesis of chiral materials in DESs is unprecedented due to the complex interplays between DESs and solutes. In this work, all bio-derived chiral DESs were prepared using choline chloride or cyclodextrin as hydrogen bonding acceptors and natural chiral acids as donors, which performed as chiral matrices for the rational synthesis of chiroptical materials by taking advantage of the efficient chirality transfer between the DESs and solutes. In a very selective manner, building units with molecular pockets could facilitate strong binding affinity towards chiral acid components of DESs disregarding the presence of competitive hydrogen bonding acceptors. Chirality transfer from DESs to nanoassemblies leads to chirality amplification in the presence of minimal amounts of entrapped chiral acids, thanks to the spontaneous symmetry breaking of solutes during aggregation. This work utilizes chiral DESs to control supramolecular chirality, and illustrates the structural basis for the fabrication of DES-based chiral materials.
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Affiliation(s)
- Lin Wang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China
| | - Qiuhong Cheng
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China
| | - Aiyou Hao
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China
| | - Pengyao Xing
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China
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4
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Attia D, Mendelson O, Levi-Kalisman Y, Bitton R, Yerushalmi-Rozen R. Enantioselective disruption of cellulose nanocrystal self-assembly into chiral nematic phases in D-alanine solutions. NANOSCALE 2023; 15:16890-16895. [PMID: 37847510 DOI: 10.1039/d3nr03077f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
The chiral environment of enantiomerically pure D-alanine solutions is observed to disrupt and modify the entropy-driven assembly of cellulose nanocrystals (CNCs) into a chiral nematic mesophase. The effect is specific to D-alanine and cannot be attributed to the adsorption of alanine molecules (neither D- nor L-alanine) onto the CNC particles.
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Affiliation(s)
- David Attia
- Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
| | - Orit Mendelson
- Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
- Nuclear Research Center-Negev, Department of Chemistry, Beer-Sheva 84190, Israel
| | - Yael Levi-Kalisman
- The Center for Nanoscience and Nanotechnology, and the Institute of Life Sciences, The Hebrew University, Jerusalem 91904, Israel
| | - Ronit Bitton
- Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
- The Ilse Katz Institute for Nanoscience and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Rachel Yerushalmi-Rozen
- Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
- The Ilse Katz Institute for Nanoscience and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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5
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Naranjo C, Doncel-Giménez A, Gómez R, Aragó J, Ortí E, Sánchez L. Solvent-dependent self-assembly of N-annulated perylene diimides. From dimers to supramolecular polymers. Chem Sci 2023; 14:9900-9909. [PMID: 37736635 PMCID: PMC10510848 DOI: 10.1039/d3sc03372d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/28/2023] [Indexed: 09/23/2023] Open
Abstract
The synthesis and self-assembling features of the N-annulated perylene diimide (NPBI) 1 in different solvents are reported. Compound 1 possesses two chiral linkers, derived from (S)-(+)-alaninol, that connect the central aromatic NPBI segment and the peripheral trialkoxybenzamide units. The Ala-based linker has been demonstrated to strongly favor the formation of intramolecularly H-bonded seven-membered pseudocycles. NPBI 1 shows a strong tendency to self-assemble even in a good solvent like CHCl3 and the formation of chiral dimers is detected in this good solvent. Both experimental techniques and theoretical calculations reveal that the intramolecular H-bonded pseudocycles are very robust and the formation of chiral dimers is driven by the π-stacking of two units of the NPBI core. Unexpectedly, an efficient transfer of the asymmetry of the point chirality at the linker to the aromatic moiety is observed in the molecularly dissolved state. Changing the solvent to more apolar methylcyclohexane modifies the self-assembly process and the formation of chiral supramolecular polymers is detected. The supramolecular polymerization of 1 is demonstrated to follow an isodesmic mechanism unlike previous referable systems. In the formation of the supramolecular polymers of 1, the combination of experimental and computational data indicates that the H-bonded pseudocycles are also present in the aggregated state and the rope-like, columnar aggregates formed by the self-assembly of 1 rely on the π-stacking of the NPBI backbones.
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Affiliation(s)
- Cristina Naranjo
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid 28040 Madrid Spain
| | - Azahara Doncel-Giménez
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia C/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Rafael Gómez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid 28040 Madrid Spain
| | - Juan Aragó
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia C/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Enrique Ortí
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia C/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Luis Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid 28040 Madrid Spain
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6
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Viswanatha-Pillai G, Vargas-Jentzsch A, Carvalho A, Fleith G, Gavat O, Moulin E, Giuseppone N, Guenet JM. Thermodynamics, morphology and molecular structure of molecular compounds in trisamide triarylamine organogels and pseudo-organogels. SOFT MATTER 2023. [PMID: 37325836 DOI: 10.1039/d3sm00624g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In this paper, potentially-gelling binary systems are investigated by DSC, X-ray and Electron microscopy in order to assess their gel status and the role of the Hansen solubility parameter. The low molecular weight organogelator is a Triarylamine Trisamide (TATA) while the solvents consist of a series of halogeno-ethanes and of toluene. Temperature-concentration phase diagrams are mapped out from DSC traces. They reveal the existence of one or more TATA/solvent molecular compounds. The X-ray data, that display different diffraction patterns depending on the solvent and the temperature, show the existence of different molecular structures, and thus confirm the outcome of the T-C phase diagram. Tentative molecular organizations are also discussed in light of previous results obtained in the solid state. The morphology by TEM on dilute systems, and TEM on more concentrated systems highlight the degree of physical cross-links, which leads one to regard some systems as pseudo-gels.
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Affiliation(s)
- Ganesh Viswanatha-Pillai
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Andreas Vargas-Jentzsch
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Alain Carvalho
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Guillaume Fleith
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Odile Gavat
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Emilie Moulin
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Nicolas Giuseppone
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Jean-Michel Guenet
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
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7
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Zhang X, Ding H, Yang S, Yang H, Yang X, Li B, Xing X, Sun Y, Gu G, Chen X, Gao J, Pan M, Chi L, Guo Q. Kinetic Controlled Chirality Transfer and Induction in 2D Hydrogen-Bonding Assemblies of Glycylglycine on Au(111). SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207111. [PMID: 36599616 DOI: 10.1002/smll.202207111] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Chirality transfer is of vital importance that dominates the structure and functionality of biological systems and living matters. External physical stimulations, e.g. polarized light and mechanical forces, can trigger the chirality symmetry breaking, leading to the appearance of the enantiomeric entities created from a chiral self-assembly of achiral molecule. Here, several 2D assemblies with different chirality, synthesized on Au(111) surface by using achiral building blocks - glycylglycine (digly), the simplest polypeptide are reported. By delicately tuning the kinetic factors, i.e., one-step slow/rapid deposition, or stepwise slow deposition with mild annealing, achiral square hydrogen-bond organic frameworks (HOF), homochiral rhombic HOF and racemic rectangular assembly are achieved, respectively. Chirality induction and related symmetry broken in assemblies are introduced by the handedness (H-bond configurations in principle) of the assembled motifs and then amplified to the entire assemblies via the interaction between motifs. The results show that the chirality transfer and induction of biological assemblies can be tuned by altering the kinetic factors instead of applying external forces, which may offer an in-depth understanding and practical approach to peptide chiral assembly on the surfaces and can further facilitate the design of desired complex biomolecular superstructures.
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Affiliation(s)
- Xin Zhang
- School of Physics, Northwest University, Xi'an, 710069, China
| | - Haoxuan Ding
- Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
| | - Shu Yang
- School of Information Science and Engineering, Fudan University, Shanghai, 200433, China
- Zhuhai Fudan Innovation Institute, Zhuhai, 519000, China
| | - Hualin Yang
- Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
| | - Xiaoqing Yang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Bosheng Li
- Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
| | - Xueting Xing
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Yaojie Sun
- School of Information Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Guangxin Gu
- Zhuhai Fudan Innovation Institute, Zhuhai, 519000, China
| | - Xiaorui Chen
- School of Mechanical and Material Engineering, Xi'an University, Xi'an, 710065, China
| | - Jianzhi Gao
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Minghu Pan
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Lifeng Chi
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Quanmin Guo
- Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
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8
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Guenet JM, Demé B, Gavat O, Moulin E, Giuseppone N. Evidence by neutron diffraction of molecular compounds in triarylamine tris-amide organogels and in their hybrid thermoreversible gels with PVC. SOFT MATTER 2022; 18:2851-2857. [PMID: 35347334 DOI: 10.1039/d2sm00254j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report on neutron diffraction experiments performed on organogels prepared from triarylamine tris-amide (TATA), as well as on their ternary thermoreversible gels made up with poly[vinyl chloride] (PVC). Three different solvents together with their deuterated counterparts have been used; tetrachloroethane, wherein TATA fibrils display ohmic conductivity, bromobenzene and o-dichlorobenzene. The TATA crystal structure differs in the three solvents. Most importantly, the difference in the diffraction patterns whether hydrogenous solvents or deuterated solvents are used demonstrate the occurrence of molecular compounds. Tentative unit cells are presented. These results are also discussed in the light of the current views on the solvent role in the gelation process.
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Affiliation(s)
- J-M Guenet
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23 rue du Loess, BP84047, 67034 STRASBOURG, Cedex2, France.
| | - B Demé
- Institut Laue-Langevin, 71 avenue des Martyrs CS 20156, 38042 GRENOBLE Cedex 9, France
| | - O Gavat
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23 rue du Loess, BP84047, 67034 STRASBOURG, Cedex2, France.
| | - E Moulin
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23 rue du Loess, BP84047, 67034 STRASBOURG, Cedex2, France.
| | - N Giuseppone
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23 rue du Loess, BP84047, 67034 STRASBOURG, Cedex2, France.
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9
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Ślęczkowski ML, Mabesoone MFJ, Preuss MD, Post Y, Palmans ARA, Meijer EW. Helical bias in supramolecular polymers accounts for different stabilities of kinetically trapped states. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Marcin L. Ślęczkowski
- Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
- Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology Eindhoven The Netherlands
| | - Mathijs F. J. Mabesoone
- Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
- Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology Eindhoven The Netherlands
- Institute of Microbiology Eidgenössische Technische Hochschule Zürich Zürich Switzerland
| | - Marco D. Preuss
- Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
- Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology Eindhoven The Netherlands
| | - Yorick Post
- Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
| | - Anja R. A. Palmans
- Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
- Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology Eindhoven The Netherlands
| | - E. W. Meijer
- Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
- Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology Eindhoven The Netherlands
- School of Chemistry and the UNSW RNA Institute University of New South Wales Sydney Australia
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10
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Wang Y, Feng Z, Sun Y, Zhu L, Xia D. Chiral induction in a novel self-assembled supramolecular system composed of α-cyclodextrin porous liquids, chiral silver nanoparticles and planar conjugated molecules. SOFT MATTER 2022; 18:975-982. [PMID: 35014653 DOI: 10.1039/d1sm01248g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The newly developed porous liquids known as liquids with permanent microporosity, have considerable application potential in many unknown areas. Herein, a supramolecular system composed of α-cyclodextrin porous liquid, chiral silver nanoparticles and planar conjugated molecules (methylene blue and indigo carmine) was designed and the induced chirality of the system was observed. It was found that the induced chirality can be easily tuned by changing the pH value of the mixture solution. The induced chiral signal of methylene blue in the developed self-assembled supramolecular system occurred when the pH was between 8 and 10, and furthermore the induced chirality of indigo carmine was found when the pH was between 6.5 and 7.5. The intensity of induced chirality decreases upon increasing temperatures and ionic strength. This study may offer a new approach for the creation of a chiral supramolecular system based on host-guest and electrostatic interaction and make cyclodextrin porous liquids promising candidates for applications in chiral induction.
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Affiliation(s)
- Yan Wang
- College of Chemical Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China.
- Oil & Gas Technology Research Institute, Changqing Oilfield Company, Xi'an 710018, China
| | - Zhen Feng
- College of Chemical Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China.
| | - Yawei Sun
- College of Chemical Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China.
| | - Lijun Zhu
- College of Chemical Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China.
| | - Daohong Xia
- College of Chemical Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China.
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11
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Maity D, Hamilton AD. The helical supramolecular assembly of oligopyridylamide foldamers in aqueous media can be guided by adenosine diphosphates. Chem Commun (Camb) 2021; 57:9192-9195. [PMID: 34519293 DOI: 10.1039/d1cc02704b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free and achiral tri-pyridylamide foldamer, DM 11, containing a critical naphthalimide side chain self-assembles in a left-handed helical manner in the presence of chiral adenosine phosphates, under physiological conditions. Surprisingly, a very high degree of helicity in the foldamer assemblies was observed with ADP compared to other nucleoside phosphates, including ATP.
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Affiliation(s)
- Debabrata Maity
- Department of Chemistry, New York University, New York, NY 10003, USA.
| | - Andrew D Hamilton
- Department of Chemistry, New York University, New York, NY 10003, USA.
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12
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Martínez M, Doncel-Giménez A, Cerdá J, Calbo J, Rodríguez R, Aragó J, Crassous J, Ortí E, Sánchez L. Distance Matters: Biasing Mechanism, Transfer of Asymmetry, and Stereomutation in N-Annulated Perylene Bisimide Supramolecular Polymers. J Am Chem Soc 2021; 143:13281-13291. [PMID: 34378925 PMCID: PMC8478275 DOI: 10.1021/jacs.1c06125] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Indexed: 12/23/2022]
Abstract
The synthesis of two series of N-annulated perylene bisimides (PBIs), compounds 1 and 2, is reported, and their self-assembling features are thoroughly investigated by a complete set of spectroscopic measurements and theoretical calculations. The study corroborates the enormous influence that the distance between the PBI core and the peripheral groups exerts on the chiroptical properties and the supramolecular polymerization mechanism. Compounds 1, with the peripheral groups separated from the central PBI core by two methylenes and an ester group, form J-type supramolecular polymers in a cooperative manner but exhibit negligible chiroptical properties. The lack of clear helicity, due to the staircase arrangement of the self-assembling units in the aggregate, justifies these features. In contrast, attaching the peripheral groups directly to the N-annulated PBI core drastically changes the self-assembling properties of compounds 2, which form H-type aggregates following an isodesmic mechanism. These H-type aggregates show a strong aggregation-caused quenching (ACQ) effect that leads to nonemissive aggregates. Chiral (S)-2 and (R)-2 experience an efficient transfer of asymmetry to afford P- and M-type aggregates, respectively, although no amplification of asymmetry is achieved in majority rules or "sergeants-and-soldiers" experiments. A solvent-controlled stereomutation is observed for chiral (S)-2 and (R)-2, which form helical supramolecular polymers of different handedness depending on the solvent (methylcyclohexane or toluene). The stereomutation is accounted for by considering the two possible conformations of the terminal phenyl groups, eclipsed or staggered, which lead to linear or helical self-assemblies, respectively, with different relative stabilities depending on the solvent.
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Affiliation(s)
- Manuel
A. Martínez
- Departamento
de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Azahara Doncel-Giménez
- Instituto
de Ciencia Molecular (ICMol), Universidad de Valencia, c/Catedrático José
Beltrán, 2, 46980 Paterna, Spain
| | - Jesús Cerdá
- Instituto
de Ciencia Molecular (ICMol), Universidad de Valencia, c/Catedrático José
Beltrán, 2, 46980 Paterna, Spain
| | - Joaquín Calbo
- Instituto
de Ciencia Molecular (ICMol), Universidad de Valencia, c/Catedrático José
Beltrán, 2, 46980 Paterna, Spain
| | - Rafael Rodríguez
- Univ
Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Juan Aragó
- Instituto
de Ciencia Molecular (ICMol), Universidad de Valencia, c/Catedrático José
Beltrán, 2, 46980 Paterna, Spain
| | - Jeanne Crassous
- Univ
Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Enrique Ortí
- Instituto
de Ciencia Molecular (ICMol), Universidad de Valencia, c/Catedrático José
Beltrán, 2, 46980 Paterna, Spain
| | - Luis Sánchez
- Departamento
de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
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13
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Guenet JM. Physical Aspects of Organogelation: A Point of View. Gels 2021; 7:gels7020065. [PMID: 34205955 PMCID: PMC8293242 DOI: 10.3390/gels7020065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 12/02/2022] Open
Abstract
The physics side of organogelation is broached through three main aspects, thermodynamics (formation and melting), structure (morphology and molecular organization), and rheology. A definition of a gel is first discussed so as to delimit the field of investigation; namely, systems constituted of fibril-like entities. It is again highlighted that gel formation occurs through first-order transitions, chiefly by homogeneous nucleation. A deeper knowledge of the system is thus achieved by mapping out the temperature–concentration phase diagram. Some experimental diagrams are shown, while diagrams likely to pertain to these systems are presented. The molecular arrangement is basically crystallization that occurs in a preferred direction, hence the formation of fibrils. The effects of the solvent type, the quenching process of the solution are discussed with respect to the morphology and the crystal structure. Finally, the rheological properties are tackled. Notions of critical gelation concentration and percolation are debated. The interest of mapping out the temperature–concentration phase diagram is emphasized, particularly for understanding the variation of the gel modulus with temperature.
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Affiliation(s)
- Jean-Michel Guenet
- Institut Charles Sadron, CNRS-Université de Strasbourg, 23 rue du Loess, CEDEX 02, F-67034 Strasbourg, France
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14
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Mondal AK, Preuss MD, Ślęczkowski ML, Das TK, Vantomme G, Meijer EW, Naaman R. Spin Filtering in Supramolecular Polymers Assembled from Achiral Monomers Mediated by Chiral Solvents. J Am Chem Soc 2021; 143:7189-7195. [PMID: 33926182 PMCID: PMC8297732 DOI: 10.1021/jacs.1c02983] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
In past studies,
spin selective transport was observed in polymers
and supramolecular structures that are based on homochiral building
blocks possessing stereocenters. Here we address the question to what
extent chiral building blocks are required for observing the chiral
induced spin selectivity (CISS) effect. We demonstrate the CISS effect
in supramolecular polymers exclusively containing achiral monomers,
where the supramolecular chirality was induced by chiral solvents
that were removed from the fibers before measuring. Spin-selective
transport was observed for electrons transmitted perpendicular to
the fibers’ long axis. The spin polarization correlates with
the intensity of the CD spectra of the polymers, indicating that the
effect is nonlocal. It is found that the spin polarization increases
with the samples’ thickness and the thickness dependence is
the result of at least two mechanisms: the first is the CISS effect,
and the second reduces the spin polarization due to scattering. Temperature
dependence studies provide the first support for theoretical work
that suggested that phonons may contribute to the spin polarization.
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Affiliation(s)
- Amit Kumar Mondal
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Marco D Preuss
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Marcin L Ślęczkowski
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Tapan Kumar Das
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ghislaine Vantomme
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - E W Meijer
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ron Naaman
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot 76100, Israel
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15
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Mabesoone MJ, Palmans ARA, Meijer EW. Solute-Solvent Interactions in Modern Physical Organic Chemistry: Supramolecular Polymers as a Muse. J Am Chem Soc 2020; 142:19781-19798. [PMID: 33174741 PMCID: PMC7705892 DOI: 10.1021/jacs.0c09293] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Indexed: 12/14/2022]
Abstract
Interactions between solvents and solutes are a cornerstone of physical organic chemistry and have been the subject of investigations over the last century. In recent years, a renewed interest in fundamental aspects of solute-solvent interactions has been sparked in the field of supramolecular chemistry in general and that of supramolecular polymers in particular. Although solvent effects in supramolecular chemistry have been recognized for a long time, the unique opportunities that supramolecular polymers offer to gain insight into solute-solvent interactions have become clear relatively recently. The multiple interactions that hold the supramolecular polymeric structure together are similar in strength to those between solute and solvent. The cooperativity found in ordered supramolecular polymers leads to the possibility of amplifying these solute-solvent effects and will shed light on extremely subtle solvation phenomena. As a result, many exciting effects of solute-solvent interactions in modern physical organic chemistry can be studied using supramolecular polymers. Our aim is to put the recent progress into a historical context and provide avenues toward a more comprehensive understanding of solvents in multicomponent supramolecular systems.
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Affiliation(s)
- Mathijs
F. J. Mabesoone
- Institute
for Complex Molecular Systems and the Laboratory of Macromolecular
and Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Anja R. A. Palmans
- Institute
for Complex Molecular Systems and the Laboratory of Macromolecular
and Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - E. W. Meijer
- Institute
for Complex Molecular Systems and the Laboratory of Macromolecular
and Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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16
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Mishra A, Dhiman S, George SJ. ATP‐Driven Synthetic Supramolecular Assemblies: From ATP as a Template to Fuel. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006614] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ananya Mishra
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Shikha Dhiman
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Subi J. George
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
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17
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Mishra A, Dhiman S, George SJ. ATP‐Driven Synthetic Supramolecular Assemblies: From ATP as a Template to Fuel. Angew Chem Int Ed Engl 2020; 60:2740-2756. [DOI: 10.1002/anie.202006614] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/09/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Ananya Mishra
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Shikha Dhiman
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Subi J. George
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
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18
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Fujiki M, Wang L, Ogata N, Asanoma F, Okubo A, Okazaki S, Kamite H, Jalilah AJ. Chirogenesis and Pfeiffer Effect in Optically Inactive Eu III and Tb III Tris(β-diketonate) Upon Intermolecular Chirality Transfer From Poly- and Monosaccharide Alkyl Esters and α-Pinene: Emerging Circularly Polarized Luminescence (CPL) and Circular Dichroism (CD). Front Chem 2020; 8:685. [PMID: 32903703 PMCID: PMC7438854 DOI: 10.3389/fchem.2020.00685] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 06/30/2020] [Indexed: 11/30/2022] Open
Abstract
We report emerging circularly polarized luminescence (CPL) at 4f-4f transitions when lanthanide (EuIII and TbIII) tris(β-diketonate) embedded to cellulose triacetate (CTA), cellulose acetate butyrate (CABu), D-/L-glucose pentamethyl esters (D-/L-Glu), and D-/L-arabinose tetramethyl esters (D-/L-Ara) are in film states. Herein, 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionate (fod) and 2,2,6,6-tetramethyl-3,5-heptanedione (dpm) were chosen as the β-diketonates. The glum value of Eu(fod)3 in CABu are +0.0671 at 593 nm (5D0→7F1) and −0.0059 at 613 nm (5D0→7F2), respectively, while those in CTA are +0.0463 and −0.0040 at these transitions, respectively. The glum value of Tb(fod)3 in CABu are −0.0029 at 490 nm (5D4→7F6), +0.0078 at 540 nm (5D4→7F5), and −0.0018 at 552 nm (5D4→7F5), respectively, while those in CTA are −0.0053, +0.0037, and −0.0059 at these transitions, respectively. D-/L-Glu and D-/L-Ara induced weaker glum values at 4f-4f transitions of Eu(fod)3, Tb(fod)3, and Tb(dpm)3. For comparison, Tb(dpm)3 in α-pinene showed clear CPL characteristics, though Eu(dpm)3 did not. A surplus charge neutralization hypothesis was applied to the origin of attractive intermolecular interactions between the ligands and saccharides. This idea was supported from the concomitant opposite tendency in upfield 19F-NMR and downfield 1H-NMR chemical shifts of Eu(fod)3 and the opposite Mulliken charges between F-C bonds (fod) and H-C bonds (CTA and D-/L-Glu). An analysis of CPL excitation (CPLE) and CPL spectra suggests that (+)- and (–)-sign CPL signals of EuIII and TbIII at different 4f-4f transitions in the visible region are the same with the (+)-and (–)-sign exhibited by CPLE bands at high energy levels of EuIII and TbIII in the near-UV region.
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Affiliation(s)
- Michiya Fujiki
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Laibing Wang
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Nanami Ogata
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Fumio Asanoma
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Asuka Okubo
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Shun Okazaki
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Hiroki Kamite
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Abd Jalil Jalilah
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan.,School of Materials Engineering, Universiti Malaysia Perlis, Jejawi, Malaysia.,Centre of Excellence Frontier Materials Research, Universiti Malaysia Perlis, Kangar, Malaysia
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19
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Sarkar A, Sasmal R, Empereur-mot C, Bochicchio D, Kompella SVK, Sharma K, Dhiman S, Sundaram B, Agasti SS, Pavan GM, George SJ. Self-Sorted, Random, and Block Supramolecular Copolymers via Sequence Controlled, Multicomponent Self-Assembly. J Am Chem Soc 2020; 142:7606-7617. [DOI: 10.1021/jacs.0c01822] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Aritra Sarkar
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Ranjan Sasmal
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Charly Empereur-mot
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, Via Cantonale 2c, CH-6928 Manno, Switzerland
| | - Davide Bochicchio
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, Via Cantonale 2c, CH-6928 Manno, Switzerland
| | - Srinath V. K. Kompella
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Kamna Sharma
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Shikha Dhiman
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Balasubramanian Sundaram
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Sarit S. Agasti
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Giovanni M. Pavan
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, Via Cantonale 2c, CH-6928 Manno, Switzerland
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi24, 10129 Torino, Italy
| | - Subi J. George
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
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20
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Mishra A, Korlepara DB, Balasubramanian S, George SJ. Bioinspired, ATP-driven co-operative supramolecular polymerization and its pathway dependence. Chem Commun (Camb) 2020; 56:1505-1508. [PMID: 31917382 DOI: 10.1039/c9cc08790g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A bio-inspired, ATP-driven nucleation growth assembly is demonstrated using an amphiphilic naphthalene diimide (NDI) derivative appended with guanidinium receptors to promote specific salt-bridge type interaction with nucleotide phosphates. Detailed spectroscopic and microscopic probing revealed a pathway-dependent co-operative self-assembly to yield two-dimensional and scrolled nano-tubular bilayer assemblies under kinetic and thermodynamic conditions, respectively.
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Affiliation(s)
- Ananya Mishra
- Supramolecular Chemistry Laboratory, New Chemistry Unit, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India.
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21
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Sarkar A, Kölsch JC, Berač CM, Venugopal A, Sasmal R, Otter R, Besenius P, George SJ. Impact of NDI-Core Substitution on the pH-Responsive Nature of Peptide-Tethered Luminescent Supramolecular Polymers. ChemistryOpen 2020; 9:346-350. [PMID: 32195075 PMCID: PMC7080532 DOI: 10.1002/open.202000017] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 02/13/2020] [Indexed: 01/07/2023] Open
Abstract
The pH-responsive nature of two self-assembled NDI-peptide amphiphile conjugates is reported. The diethoxy substituted NDI showed a pH-dependent assembly behaviour, as expected. In contrast, the isopropylamino- and ethoxy-substituted NDI based supramolecular polymer was stable at acidic and basic aqueous conditions. This finding highlights how subtle changes in the molecular design of π-stacked chromophore-peptide conjugates have a drastic impact on their equilibrium structure and ultimately functional properties.
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Affiliation(s)
- Aritra Sarkar
- New Chemistry UnitSchool of Advanced Materials (SAMAt) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR)JakkurBangalore560064India
| | - Jonas C. Kölsch
- Department of ChemistryJohannes Gutenberg-University MainzDuesbergweg 10–1455128MainzGermany
| | - Christian M. Berač
- Department of ChemistryJohannes Gutenberg-University MainzDuesbergweg 10–1455128MainzGermany
- Graduate School of Materials Science in MainzStaudingerweg 955128MainzGermany
| | - Akhil Venugopal
- New Chemistry UnitSchool of Advanced Materials (SAMAt) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR)JakkurBangalore560064India
| | - Ranjan Sasmal
- New Chemistry UnitSchool of Advanced Materials (SAMAt) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR)JakkurBangalore560064India
| | - Ronja Otter
- Department of ChemistryJohannes Gutenberg-University MainzDuesbergweg 10–1455128MainzGermany
| | - Pol Besenius
- Department of ChemistryJohannes Gutenberg-University MainzDuesbergweg 10–1455128MainzGermany
- Graduate School of Materials Science in MainzStaudingerweg 955128MainzGermany
| | - Subi J. George
- New Chemistry UnitSchool of Advanced Materials (SAMAt) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR)JakkurBangalore560064India
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22
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Rao KV, Mabesoone MFJ, Miyajima D, Nihonyanagi A, Meijer EW, Aida T. Distinct Pathways in “Thermally Bisignate Supramolecular Polymerization”: Spectroscopic and Computational Studies. J Am Chem Soc 2019; 142:598-605. [DOI: 10.1021/jacs.9b12044] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Kotagiri Venkata Rao
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Mathijs F. J. Mabesoone
- Laboratory of Macromolecular and Organic Chemistry and the Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Daigo Miyajima
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Atsuko Nihonyanagi
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - E. W. Meijer
- Laboratory of Macromolecular and Organic Chemistry and the Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Takuzo Aida
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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23
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Nagata Y, Takeda R, Suginome M. Asymmetric Catalysis in Chiral Solvents: Chirality Transfer with Amplification of Homochirality through a Helical Macromolecular Scaffold. ACS CENTRAL SCIENCE 2019; 5:1235-1240. [PMID: 31404214 PMCID: PMC6661863 DOI: 10.1021/acscentsci.9b00330] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Indexed: 05/11/2023]
Abstract
Use of chiral solvents in asymmetric synthesis as a sole source of enantioselection remains largely unexplored in organic synthesis. We found that the use of a helical macromolecular catalyst of which helical chirality is dynamically formed in chiral solvents allowed several mechanistically different reactions to proceed with high enantioselectivity. In this system, the chirality of the solvent, such as limonene, induces a configurational imbalance to the helical macromolecular scaffold of the catalyst, and in turn to the reaction products through palladium-catalyzed asymmetric reactions including Suzuki-Miyaura cross-coupling (up to 98% ee), styrene hydrosilylation (up to 95% ee), and silaboration (up to 89% ee). Not only enantiomerically pure limonene but also limonene with low enantiomeric excesses induce single-handed helical structures with majority-rule-based amplification of homochirality. The helical conformation of the macromolecular catalyst was retained even in the absence of limonene in the solid state, enabling asymmetric cross-coupling in achiral solvent with high enantioselectivity.
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24
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Korde JM, Kandasubramanian B. Fundamentals and Effects of Biomimicking Stimuli-Responsive Polymers for Engineering Functions. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00683] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jay M. Korde
- Biocomposite Laboratory, Department of Metallurgical & Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune-411025, India
| | - Balasubramanian Kandasubramanian
- Biocomposite Laboratory, Department of Metallurgical & Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune-411025, India
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25
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Xue S, Xing P, Zhang J, Zeng Y, Zhao Y. Diverse Role of Solvents in Controlling Supramolecular Chirality. Chemistry 2019; 25:7426-7437. [PMID: 30791175 DOI: 10.1002/chem.201900714] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 02/20/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Shixin Xue
- College of ChemistryTianjin Normal University 393 Binshui West Road Tianjin 300387 P. R. China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link 637371 Singapore Singapore
| | - Pengyao Xing
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link 637371 Singapore Singapore
| | - Jingbo Zhang
- College of ChemistryTianjin Normal University 393 Binshui West Road Tianjin 300387 P. R. China
| | - Yongfei Zeng
- College of ChemistryTianjin Normal University 393 Binshui West Road Tianjin 300387 P. R. China
| | - Yanli Zhao
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link 637371 Singapore Singapore
- School of Materials Science and EngineeringNanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
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26
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Abstract
Reversible helical polymerization of toroids with rapid response to heating–cooling cycles and helicity control in the presence of a chiral regulator.
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Affiliation(s)
- Bowen Shen
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Myongsoo Lee
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- China
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27
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Li S, Miao T, Cheng X, Zhao Y, Zhang W, Zhu X. Different phase-dominated chiral assembly of polyfluorenes induced by chiral solvation: axial and supramolecular chirality. RSC Adv 2019; 9:38257-38264. [PMID: 35541783 PMCID: PMC9075892 DOI: 10.1039/c9ra08354e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 11/08/2019] [Indexed: 11/21/2022] Open
Abstract
The introduction of chirality in an achiral system will not only help avoid the tedious and expensive synthesis of chiral substances or catalysts but also greatly expand the ranges of chiral compounds. Herein, the induction of chirality in achiral polyfluorene (PF2/6 and PF8) with different alkyl chains at the C9 position of fluorene was achieved using a binary solvent system, in which ethanol was used as a poor solvent and chiral limonene was employed simultaneously as a good solvent and chiral solvent. The circular dichroism (CD), UV-vis and photoluminescence (PL) spectra demonstrated that the structures of PFs with linear/branched alkyl side chains and the volume fractions of the cosolvents had an obvious effect on the generation of chirality driven by chiral solvation. During the chiral assembly processes of PFs, PF8 with a linear alkyl side chain demonstrated the obvious chiral β phase, while PF2/6 with a branched alkyl side chain only showed the chiral α phase. WAXD data also confirmed the existence of quite different phases of PF8 and PF2/6. The first induced chirality of PF with a branched alkyl side chain (PF2/6) will help the further understanding of the chiral assembly mechanism of PFs driven by chiral solvation. The induced chirality of PF2/6 was axial chirality of the PF chain but the chirality of PF8 was from the supramolecular chiral assembly of the PF chains. The linear dependence of the maximum CD and gCD values on the enantiomeric purity of chiral limonene demonstrated that the achiral PFs have a potential application as chiral sensors to detect the ee value of limonene. The chiral solvation induced chirality in achiral polyfluorenes showed the axial chirality for PF2/6 with branched side alkyl chain, but supramolecular chirality for PF8 with linear side alkyl chain.![]()
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Affiliation(s)
- Shuai Li
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
| | - Tengfei Miao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
| | - Xiaoxiao Cheng
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
| | - Yin Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
| | - Wei Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
| | - Xiulin Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
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28
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Jalilah AJ, Asanoma F, Fujiki M. Unveiling controlled breaking of the mirror symmetry of Eu(fod) 3 with α-/β-pinene and BINAP by circularly polarised luminescence (CPL), CPL excitation, and 19F-/ 31P{ 1H}-NMR spectra and Mulliken charges. Inorg Chem Front 2018; 5:2718-2733. [DOI: 10.1039/c8qi00509e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The first CPL signals at f–f transitions of Eu(fod)3 in α- and β-pinene as chiral solvents and with BINAP (1 : 1) in chloroform were detected.
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Affiliation(s)
- Abd Jalil Jalilah
- Division of Materials Science
- Graduate School of Science and Technology
- Nara Institute of Science and Technology
- Ikoma
- Japan
| | - Fumio Asanoma
- Division of Materials Science
- Graduate School of Science and Technology
- Nara Institute of Science and Technology
- Ikoma
- Japan
| | - Michiya Fujiki
- Division of Materials Science
- Graduate School of Science and Technology
- Nara Institute of Science and Technology
- Ikoma
- Japan
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29
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Miao K, Hu Y, Xu L, Dong M, Wu J, Miao X, Deng W. Chiral polymorphism in the self-assemblies of achiral molecules induced by multiple hydrogen bonds. Phys Chem Chem Phys 2018; 20:11160-11173. [PMID: 29629458 DOI: 10.1039/c8cp00591e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Driven by multiple hydrogen bonds, chiral and achiral polymorphs are successfully fabricated at a liquid–solid interface.
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Affiliation(s)
- Kai Miao
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Yi Hu
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Li Xu
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Meiqiu Dong
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Juntian Wu
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Xinrui Miao
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Wenli Deng
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
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30
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Zhao Y, Chen H, Yin L, Cheng X, Zhang W, Zhu X. Chirality induction of achiral polydialkylfluorenes by chiral solvation: odd–even and side chain length dependence. Polym Chem 2018. [DOI: 10.1039/c8py00114f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An “odd–even” effect for the chiral β-phase of polydialkylfluorene/limonene aggregates was first observed, depending on the odd–even alkyl side chain length.
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Affiliation(s)
- Yin Zhao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Hailing Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Lu Yin
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Xiaoxiao Cheng
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Wei Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Xiulin Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
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31
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Chen T, Li SY, Wang D, Wan LJ. Competitive chiral induction in a 2D molecular assembly: Intrinsic chirality versus coadsorber-induced chirality. SCIENCE ADVANCES 2017; 3:e1701208. [PMID: 29119137 PMCID: PMC5669609 DOI: 10.1126/sciadv.1701208] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 10/06/2017] [Indexed: 06/07/2023]
Abstract
Noncovalently introducing stereogenic information is a promising approach to embed chirality in achiral molecular systems. However, the interplay of the noncovalently introduced chirality with the intrinsic chirality of molecules or molecular aggregations has rarely been addressed. We report a competitive chiral expression of the noncovalent interaction-mediated chirality induction and the intrinsic stereogenic center-controlled chirality induction in a two-dimensional (2D) molecular assembly at the liquid/solid interface. Two enantiomorphous honeycomb networks are formed by the coassembly of an achiral 5-(benzyloxy)isophthalic acid (BIC) derivative and 1-octanol at the liquid/solid interface. The preferential formation of the globally homochiral assembly can be achieved either by using the chiral analog of 1-octanol, (S)-6-methyl-1-octanol, as a chiral coadsorber to induce chirality to the BIC assembly via noncovalent hydrogen bonding or by covalently linking a chiral center in the side chain of BIC. Both the chiral coadsorber and the intrinsically chiral BIC derivative can act as a chiral seeds to induce a preferred handedness in the assembly of the achiral BIC derivatives. Furthermore, the noncovalent interaction-mediated chirality induction can restrain or even overrule the manifestation of the intrinsic chirality of the BIC molecule and dominate the handedness of the 2D molecular coassembly. This study provides insight into the interplay of intrinsically chiral centers and external chiral coadsorbers in the chiral induction, transfer, and amplification processes of 2D molecular assembly.
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Affiliation(s)
- Ting Chen
- Key Laboratory of Molecular Nanostructure and Nanotechnology and CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, People’s Republic of China
| | - Shu-Ying Li
- Key Laboratory of Molecular Nanostructure and Nanotechnology and CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, People’s Republic of China
- University of CAS, Beijing 100049, People’s Republic of China
| | - Dong Wang
- Key Laboratory of Molecular Nanostructure and Nanotechnology and CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, People’s Republic of China
- University of CAS, Beijing 100049, People’s Republic of China
| | - Li-Jun Wan
- Key Laboratory of Molecular Nanostructure and Nanotechnology and CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, People’s Republic of China
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32
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Kulkarni C, Korevaar PA, Bejagam KK, Palmans ARA, Meijer EW, George SJ. Solvent Clathrate Driven Dynamic Stereomutation of a Supramolecular Polymer with Molecular Pockets. J Am Chem Soc 2017; 139:13867-13875. [DOI: 10.1021/jacs.7b07639] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Chidambar Kulkarni
- Laboratory
of Macromolecular and Organic Chemistry and Institute for Complex
Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Peter A. Korevaar
- Laboratory
of Macromolecular and Organic Chemistry and Institute for Complex
Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | | | - Anja R. A. Palmans
- Laboratory
of Macromolecular and Organic Chemistry and Institute for Complex
Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - E. W. Meijer
- Laboratory
of Macromolecular and Organic Chemistry and Institute for Complex
Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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33
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Prabhu DD, Aratsu K, Yamauchi M, Lin X, Adhikari B, Yagai S. Supramolecular polymerization of hydrogen-bonded rosettes with anthracene chromophores: regioisomeric effect on nanostructures. Polym J 2016. [DOI: 10.1038/pj.2016.94] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Zhao Y, Abdul Rahim NA, Xia Y, Fujiki M, Song B, Zhang Z, Zhang W, Zhu X. Supramolecular Chirality in Achiral Polyfluorene: Chiral Gelation, Memory of Chirality, and Chiral Sensing Property. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00376] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yin Zhao
- State
and Local Joint Engineering Laboratory for Novel Functional Polymeric
Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design
and Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou 215123, China
| | - Nor Azura Abdul Rahim
- Graduate
School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Yijun Xia
- State
and Local Joint Engineering Laboratory for Novel Functional Polymeric
Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design
and Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou 215123, China
| | - Michiya Fujiki
- Graduate
School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Bo Song
- State
and Local Joint Engineering Laboratory for Novel Functional Polymeric
Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design
and Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou 215123, China
| | - Zhengbiao Zhang
- State
and Local Joint Engineering Laboratory for Novel Functional Polymeric
Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design
and Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou 215123, China
| | - Wei Zhang
- State
and Local Joint Engineering Laboratory for Novel Functional Polymeric
Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design
and Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou 215123, China
| | - Xiulin Zhu
- State
and Local Joint Engineering Laboratory for Novel Functional Polymeric
Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design
and Application, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou 215123, China
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35
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Kumar M, Reddy MD, Mishra A, George SJ. The molecular recognition controlled stereomutation cycle in a dynamic helical assembly. Org Biomol Chem 2016; 13:9938-42. [PMID: 26335541 DOI: 10.1039/c5ob01448d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Perylene bisimide functionalized with a phosphate recognition unit assembles into a left-handed, right-handed or racemic helical assembly on binding with AMP, ATP and inorganic phosphates, respectively. Thus, competitive binding among these multivalent guests was utilized for completing an unprecedented helix mutation cycle in a dynamic supramolecular assembly.
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Affiliation(s)
- Mohit Kumar
- Supramolecular Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064, India.
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36
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Shen Z, Jiang Y, Wang T, Liu M. Symmetry Breaking in the Supramolecular Gels of an Achiral Gelator Exclusively Driven by π-π Stacking. J Am Chem Soc 2015; 137:16109-15. [PMID: 26647220 DOI: 10.1021/jacs.5b10496] [Citation(s) in RCA: 177] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Supramolecular symmetry breaking, in which chiral assemblies with imbalanced right- and left-handedness emerge from achiral molecular building blocks, has been achieved in the organogels of a C3-symmetric molecule only via π-π stacking. Specifically, an achiral C3-symmetric benzene-1,3,5-tricarboxylate substituted with methyl cinnamate through ester bond was found to form organogels in various organic solvents. More interestingly, when gels formed in cyclohexane, symmetry breaking occurred; i.e., optically active organogels together with the helical nanofibers with predominant handedness were obtained. Furthermore, the stochastically appeared imbalanced helicity could be driven to desired handedness by utilizing slight chiral solvents such as (R)- or (S)-terpinen-4-ol. Remarkably, the handedness of supramolecular assemblies thus formed could be kept even when the chiral solvents were removed. For the first time, we show that symmetry breaking can occur in supramolecular gel system driven exclusively through π-π stacking.
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Affiliation(s)
- Zhaocun Shen
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Yuqian Jiang
- National Center for Nanoscience and Technology, Beijing 100190, P. R. China
| | - Tianyu Wang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.,National Center for Nanoscience and Technology, Beijing 100190, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, P. R. China
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37
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Xu L, Miao X, Cui L, Liu P, Chen X, Deng W. Concentration-dependent structure and structural transition from chirality to nonchirality at the liquid-solid interface by coassembly. NANOSCALE 2015; 7:11734-11745. [PMID: 26103009 DOI: 10.1039/c5nr03142g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Understanding the formation and structural transition of the two-dimensional chirality of self-assembly is a subject which still gains significant interest in surface or interface chirality studies. Here, we present the solvent-induced chiral structural transition of a 2-hydroxy-7-pentadecyloxy-9-fluorenone (HPF) molecules' self-assembled adlayer through coassembly with achiral aliphatic solvents under different concentrations. Polymorphic chiral patterns are obtained at low concentrations of aliphatic solvents with different chain lengths. The HPF molecules form coassembled structures with these solvents through van der Waals interactions. At the same time, at high concentrations, HPF molecules uniformly form a nonchiral multimer structure without coadsorbed aliphatic solvent molecules. What is interesting is that these structures under different concentrations will finally change into a zigzag structure, which is the thermodynamically most stable configuration. Especially when using n-hexadecane as the solvent, the adlayer shows perfect steric matching due to the close chain length of HPF and n-hexadecane, which can maximize the molecule-solvent interactions. Thus, HPF molecules in n-hexadecane exhibit the most diversiform configuration. The distinct concentration-dependence has proven that the solvent molecules can act as a coadsorbed component through van der Waals interactions rather than simply a dispersant and further result in the probability and stability of chiral self-assembled monolayers by subtle tuning of the solvent-molecule and solvent-substrate interactions. This result provides a simple and alternative strategy to construct the 2D chiral assembled monolayer.
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Affiliation(s)
- Li Xu
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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38
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Affiliation(s)
- Minghua Liu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Li Zhang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Tianyu Wang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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39
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Chen T, Li SY, Wang D, Yao M, Wan LJ. Remote Chiral Communication in Coadsorber-Induced Enantioselective 2D Supramolecular Assembly at a Liquid/Solid Interface. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Chen T, Li SY, Wang D, Yao M, Wan LJ. Remote Chiral Communication in Coadsorber-Induced Enantioselective 2D Supramolecular Assembly at a Liquid/Solid Interface. Angew Chem Int Ed Engl 2015; 54:4309-14. [DOI: 10.1002/anie.201410927] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/20/2015] [Indexed: 11/11/2022]
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41
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Jiang S, Zhao Y, Wang L, Yin L, Zhang Z, Zhu J, Zhang W, Zhu X. Photocontrollable induction of supramolecular chirality in achiral side chain Azo-containing polymers through preferential chiral solvation. Polym Chem 2015. [DOI: 10.1039/c5py00496a] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preferred supramolecular chirality in aggregates of achiral azobenzene-containing polymers by limonene as a chiral transducer is achieved for the first time.
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Affiliation(s)
- Shunqin Jiang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Yin Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Laibing Wang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Lu Yin
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Zhengbiao Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Jian Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Wei Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Xiulin Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
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42
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Yin L, Zhao Y, Jiang S, Wang L, Zhang Z, Zhu J, Zhang W, Zhu X. Preferential chiral solvation induced supramolecular chirality in optically inactive star Azo polymers: photocontrollability, chiral amplification and topological effects. Polym Chem 2015. [DOI: 10.1039/c5py01175b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The chiral amplification phenomena were observed for the first time in 4- and 6-armed Azo star side-chain polymer systems, but absent in linear and 3-armed counterparts.
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Affiliation(s)
- Lu Yin
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu
- Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Yin Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu
- Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Shunqin Jiang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu
- Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Laibing Wang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu
- Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Zhengbiao Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu
- Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Jian Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu
- Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Wei Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu
- Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Xiulin Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu
- Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
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43
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Kumar M, Brocorens P, Tonnelé C, Beljonne D, Surin M, George SJ. A dynamic supramolecular polymer with stimuli-responsive handedness for in situ probing of enzymatic ATP hydrolysis. Nat Commun 2014; 5:5793. [PMID: 25511998 DOI: 10.1038/ncomms6793] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 11/07/2014] [Indexed: 01/25/2023] Open
Abstract
Design of artificial systems, which can respond to fluctuations in concentration of adenosine phosphates (APs), can be useful in understanding various biological processes. Helical assemblies of chromophores, which dynamically respond to such changes, can provide real-time chiroptical readout of various chemical transformations. Towards this concept, here we present a supramolecular helix of achiral chromophores, which shows chiral APs responsive tunable handedness along with dynamically switchable helicity. This system, composing of naphthalenediimides with phosphate recognition unit, shows opposite handedness on binding with ATP compared with ADP or AMP, which is comprehensively analysed with molecular dynamic simulations. Such differential signalling along with stimuli-dependent fast stereomutations have been capitalized to probe the reaction kinetics of enzymatic ATP hydrolysis. Detailed chiroptical analyses provide mechanistic insights into the enzymatic hydrolysis and various intermediate steps. Thus, a unique dynamic helical assembly to monitor the real-time reaction processes via its stimuli-responsive chiroptical signalling is conceptualized.
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Affiliation(s)
- Mohit Kumar
- New Chemistry Unit, Supramolecular Chemistry Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore 560064, India
| | - Patrick Brocorens
- Laboratory for Chemistry of Novel Materials, Center for Innovation and Research in Materials and Polymers, University of Mons-UMONS, 20, Place du Parc, Mons B-7000, Belgium
| | - Claire Tonnelé
- Laboratory for Chemistry of Novel Materials, Center for Innovation and Research in Materials and Polymers, University of Mons-UMONS, 20, Place du Parc, Mons B-7000, Belgium
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials, Center for Innovation and Research in Materials and Polymers, University of Mons-UMONS, 20, Place du Parc, Mons B-7000, Belgium
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials, Center for Innovation and Research in Materials and Polymers, University of Mons-UMONS, 20, Place du Parc, Mons B-7000, Belgium
| | - Subi J George
- New Chemistry Unit, Supramolecular Chemistry Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore 560064, India
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44
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Mao Y, Liu K, Meng L, Chen L, Chen L, Yi T. Solvent induced helical aggregation in the self-assembly of cholesterol tailed platinum complexes. SOFT MATTER 2014; 10:7615-7622. [PMID: 25131259 DOI: 10.1039/c4sm01213e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Three alkynylplatinum(ii) bipyridyl complexes in which two cholesterol groups are combined with a bipyridyl group via alkyl chains and amido bonds were designed and synthesized. The complexes have different lengths of ethylene glycol chains at the para-position of 1-phenylethyne. All three complexes can self-assemble to gel networks in DMSO, while only the morphology of 1a without an ether chain shows a well-defined right-handed helical structure in layer packing mode. However, 1c with long ethylene glycol chains forms perfect regular left-handed helical structures in aqueous ethanol solution while the volume percentage of water is less than 5% (v/v). As the ratio of water increases, the chirality changes from a left-handed helix to a right-handed helix and the packing mode alters from a monolayer structure to a hexagonal structure. As the ratio of water further increases to greater than 50% (v/v), the structure of the assembly finally transforms into bilayer vesicles. The process of the morphology transition is traced by circular dichroism spectra, powder X-ray diffraction, SEM and TEM images. The result indicates that a polar solvent (water) acts as a trigger to change the self-assembly of the chiral structures of the complex due to the strong hydrophobic interaction between cholesterol groups and the balance of the hydrophobicity and hydrophilicity of the solvent environment.
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Affiliation(s)
- Yueyuan Mao
- Department of Chemistry and Concerted Innovation Center of Chemistry for Energy Materials, Fudan University, 220 Handan Road, Shanghai 200433, China.
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45
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Supramolecular Chirality: Solvent Chirality Transfer in Molecular Chemistry and Polymer Chemistry. Symmetry (Basel) 2014. [DOI: 10.3390/sym6030677] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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46
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Wang L, Suzuki N, Liu J, Matsuda T, Rahim NAA, Zhang W, Fujiki M, Zhang Z, Zhou N, Zhu X. Limonene induced chiroptical generation and inversion during aggregation of achiral polyfluorene analogs: structure-dependence and mechanism. Polym Chem 2014. [DOI: 10.1039/c4py00865k] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We demonstrate an element-dependent chiroptical inversion and structural dependence of π-conjugated polymers with the help of limonene chirality in aggregation states.
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Affiliation(s)
- Laibing Wang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Nozomu Suzuki
- Graduate School of Materials Science
- Nara Institute of Science and Technology
- Ikoma, Japan
| | - Jiangfei Liu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Takashi Matsuda
- Graduate School of Materials Science
- Nara Institute of Science and Technology
- Ikoma, Japan
| | - Nor Azura Abdul Rahim
- Graduate School of Materials Science
- Nara Institute of Science and Technology
- Ikoma, Japan
| | - Wei Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Michiya Fujiki
- Graduate School of Materials Science
- Nara Institute of Science and Technology
- Ikoma, Japan
| | - Zhengbiao Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Nianchen Zhou
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Xiulin Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
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47
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Kumar M, George SJ. Homotropic and heterotropic allosteric regulation of supramolecular chirality. Chem Sci 2014. [DOI: 10.1039/c4sc00813h] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Homotropic/heterotropic allosteric control over the handedness of dipicolylethylenediamine-functionalized perylene bisimide assemblies was obtained with chiral ATP and achiral PPi guests binding.
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Affiliation(s)
- Mohit Kumar
- Supramolecular Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR)
- Bangalore-560064, India
| | - Subi J. George
- Supramolecular Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR)
- Bangalore-560064, India
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48
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Fujiki M, Kawagoe Y, Nakano Y, Nakao A. Mirror-symmetry-breaking in poly[(9,9-di-n-octylfluorenyl- 2,7-diyl)-alt-biphenyl] (PF8P2) is susceptible to terpene chirality, achiral solvents, and mechanical stirring. Molecules 2013; 18:7035-57. [PMID: 23774943 PMCID: PMC6269764 DOI: 10.3390/molecules18067035] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 06/03/2013] [Accepted: 06/03/2013] [Indexed: 12/04/2022] Open
Abstract
Solvent chirality transfer of (S)-/(R)-limonenes allows the instant generation of optically active PF8P2 aggregates with distinct circular dichroism (CD)/circularly polarized luminescence (CPL) amplitudes with a high quantum yield of 16-20%. The present paper also reports subtle mirror-symmetry-breaking effects in CD-/CPL-amplitude and sign, CD/UV-vis spectral wavelengths, and photodynamics of the aggregates, though the reasons for the anomaly are unsolved. However, these photophysical properties depend on (i) the chemical natures of chiral and achiral molecules when used in solvent quantity, (ii) clockwise and counterclockwise stirring operations, and (iii) the order of addition of limonene and methanol to the chloroform solution.
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Affiliation(s)
- Michiya Fujiki
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan; E-Mails: (Y.K.); (A.N.)
| | - Yoshifumi Kawagoe
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan; E-Mails: (Y.K.); (A.N.)
| | - Yoko Nakano
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan; E-Mails: (Y.K.); (A.N.)
- Department of Materials Science and Engineering, University of California, Berkeley, CA 94720-1760, USA; E-Mail:
| | - Ayako Nakao
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan; E-Mails: (Y.K.); (A.N.)
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49
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Dasgupta D, Guenet JM. The Solvent in Physical Gelation: Polymers Versus Organogelators. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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50
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Xu H, Ghijsens E, George SJ, Wolffs M, Tomović Ž, Schenning APHJ, De Feyter S. Chiral Induction and Amplification in Supramolecular Systems at the Liquid-Solid Interface. Chemphyschem 2013; 14:1583-90. [DOI: 10.1002/cphc.201300212] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Indexed: 11/12/2022]
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