1
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Tamaki K, Datta S, Hanayama H, Ganser C, Uchihashi T, Yagai S. Photoresponsive Supramolecular Polymers Capable of Intrachain Folding and Interchain Aggregation. J Am Chem Soc 2024; 146:22166-22171. [PMID: 39052847 DOI: 10.1021/jacs.4c07878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
The competition between polymer chain folding and aggregation is a critical structuring process that determines the physical properties of synthetic and biopolymers. However, supramolecular polymer systems that exhibit both processes have not yet been reported. We herein introduce a system in which folded supramolecular polymers spontaneously undergo interchain aggregation due to a rearrangement in internal molecular order, converting them into crystalline aggregates. These folded supramolecular polymers slowly crystallize over the course of half a day, due to their characteristic higher-order structures. However, the photoisomerization of the trans-azobenzene incorporated into the monomer to the cis isomer leads to unfolding of the polymer, accelerating the intrachain and interchain molecular ordering to a few hours. The intermediate structures visualized by AFM demonstrate that the unfolding is coupled with interchain aggregation.
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Affiliation(s)
- Kenta Tamaki
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Sougata Datta
- Institute for Advanced Academic Research (IAAR), Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hiroki Hanayama
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Christian Ganser
- Department of Creative Research, Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan
| | - Takayuki Uchihashi
- Department of Creative Research, Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan
- Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Shiki Yagai
- Institute for Advanced Academic Research (IAAR), Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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2
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Zhang JA, Chao Y, Xiao X, Luo S, Chen W, Tian W. Self-Adaptive Aromatic Cation-π Driven Dimensional Polymorphism in Supramolecular Polymers for the Photocatalytic Oxidation and Separation of Aromatic/Cyclic Aliphatic Compounds. Angew Chem Int Ed Engl 2024; 63:e202402760. [PMID: 38483296 DOI: 10.1002/anie.202402760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Indexed: 04/06/2024]
Abstract
The phenomenon of polymorphism is ubiquitous in nature, the controlled manipulation of which not only increases our ontological understanding of nature but also facilitates the conceptualization and realization of novel functional materials. However, achieving targeted polymorphism in supramolecular assemblies (SAs) remains a formidable challenge, largely because of the constraints inherent in controlling the specific binding motifs of noncovalent interactions. Herein, we propose self-adaptive aromatic cation-π binding motifs to construct polymorphic SAs in both the solid and solution states. Using distinct discrete cation-π-cation and long-range cation-π binding motifs enables control of the self-assembly directionality of a C2h-symmetric bifunctional monomer, resulting in the successful formation of both two-dimensional and three-dimensional crystalline SAs (2D-CSA and 3D-CSA). The differences in the molecular packing of 3D-CSA compared with that of 2D-CSA significantly improve the charge separation and carrier mobility, leading to enhanced photocatalytic activity for the aerobic oxidation of thioanisole to methyl phenyl sulfoxide (yield of 99 % vs 57 %). 2D-CSA, which has a vertical extended structure with favorable stronger interaction with toluene though face-to-face cation-π interactions than methylcyclohexane, shows higher toluene/methylcyclohexane separation efficiency than 3D-CSA (96.9 % for 2D-CSA vs 56.3 % for 3D-CSA).
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Affiliation(s)
- Ju-An Zhang
- Shaanxi Key Laboratory of Macromolecular Science and Technology, Xi'an Key Laboratory of Hybrid Luminescent Materials and Photonic Device, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Yi Chao
- Shaanxi Key Laboratory of Macromolecular Science and Technology, Xi'an Key Laboratory of Hybrid Luminescent Materials and Photonic Device, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xuedong Xiao
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Shuai Luo
- Shaanxi Key Laboratory of Macromolecular Science and Technology, Xi'an Key Laboratory of Hybrid Luminescent Materials and Photonic Device, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Wenzhuo Chen
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, College of Pharmacy, Shaanxi University of Chinese Medicine, Xian-yang, 712046, China
| | - Wei Tian
- Shaanxi Key Laboratory of Macromolecular Science and Technology, Xi'an Key Laboratory of Hybrid Luminescent Materials and Photonic Device, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
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3
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Zhao X, Miao X. Surface-supported metal-organic frameworks with geometric topological diversity via scanning tunneling microscopy. iScience 2024; 27:109392. [PMID: 38500826 PMCID: PMC10946334 DOI: 10.1016/j.isci.2024.109392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024] Open
Abstract
Surface-supported metal-organic frameworks (SMOFs) are long-range ordered periodic 2D lattice layers formed by inorganic metal nodes and organic ligands via coordination bonds on substrate surfaces. The atomic resolution STM lays a solid foundation for the conception and construction of SMOFs with large area, stable structure, and special function. In this review, the cutting-edge research of SMOFs from design strategy, preparation process, and how to accurately achieve structural and functional diversity are reviewed. Furthermore, we focus on the design and construction of novel and fascinating periodic and fractal structures, in which some typical honeycomb structures, Kagome lattice, hexagonal geometry, and Sierpiński triangles are summarized, and the related prospects for designing functional nanoscale systems and architectures are prospected. Finally, the challenges faced in the design and synthesis of SMOFs are denoted, and the application prospect and development trend of SMOFs are forecasted based on the current research status.
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Affiliation(s)
- Xiaoyang Zhao
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Xinrui Miao
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
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4
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Otsuka C, Imai S, Ohkubo T, Yagai S. Toroid-rod supramolecular polymorphism derived from conformational isomerism of a π-conjugated system. Chem Commun (Camb) 2024; 60:1108-1111. [PMID: 38168679 DOI: 10.1039/d3cc05492f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Hydrogen-bonded supermacrocycles (rosettes) composed of dinaphthylethene π-conjugated systems show unique supramolecular polymorphism affording nanorings and nanorods via kinetically controlled self-assembly. Molecular modeling and molecular dynamics simulations proposed that conformational isomerism of the π-conjugated systems leads to planar and convex rosette geometries, which results in their distinct stacking arrangements.
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Affiliation(s)
- Chie Otsuka
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
| | - Saki Imai
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
| | - Takahiro Ohkubo
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan.
| | - Shiki Yagai
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan.
- Institute for Advanced Academic Research (IAAR), Chiba 263-8522, Japan
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Chaudhary S, Kędziera D, Rafiński Z, Dobrzańska L. Solvent-induced polymorphism in dipodal N-donor ligands containing a biphenyl core. RSC Adv 2023; 13:30625-30632. [PMID: 37859777 PMCID: PMC10582825 DOI: 10.1039/d3ra05713e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023] Open
Abstract
Polymorph screenings for two related dipodal N-donor ligands containing a biphenyl core, namely 4,4'-bis(pyridin-4-ylmethyl)-1,1'-biphenyl (1) and 4,4'-bis(1H-imidazol-1-ylmethyl)-1,1'-biphenyl (2) were performed, and the new phases were isolated and their crystal structures analysed. Profiling included methods such as PXRD and thermal analysis. Hirshfeld surface analyses, as well as crystal lattice energy calculations provided deeper insight in the interplay of the intermolecular forces and the stability of the isolated phases. Furthermore, our studies revealed the presence of solvent-induced polymorphism, whereby the metastable phase is dominant upon crystallisation from THF (1a) and EtOH (2c). Upon heating, these phases transform into a more stable form, whereby the transformations were followed by PXRD studies (1, 2).
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Affiliation(s)
- Simran Chaudhary
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń Gagarina 7, 87-100 Toruń Poland
| | - Dariusz Kędziera
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń Gagarina 7, 87-100 Toruń Poland
| | - Zbigniew Rafiński
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń Gagarina 7, 87-100 Toruń Poland
| | - Liliana Dobrzańska
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń Gagarina 7, 87-100 Toruń Poland
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Otsuka C, Takahashi S, Isobe A, Saito T, Aizawa T, Tsuchida R, Yamashita S, Harano K, Hanayama H, Shimizu N, Takagi H, Haruki R, Liu L, Hollamby MJ, Ohkubo T, Yagai S. Supramolecular Polymer Polymorphism: Spontaneous Helix-Helicoid Transition through Dislocation of Hydrogen-Bonded π-Rosettes. J Am Chem Soc 2023; 145:22563-22576. [PMID: 37796243 DOI: 10.1021/jacs.3c07556] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Polymorphism, a phenomenon whereby disparate self-assembled products can be formed from identical molecules, has incited interest in the field of supramolecular polymers. Conventionally, the monomers that constitute supramolecular polymers are engineered to facilitate one-dimensional aggregation and, consequently, their polymorphism surfaces primarily when the states of assembly differ significantly. This engenders polymorphs of divergent dimensionalities such as one- and two-dimensional aggregates. Notwithstanding, realizing supramolecular polymer polymorphism, wherein polymorphs maintain one-dimensional aggregation, persists as a daunting challenge. In this work, we expound upon the manifestation of two supramolecular polymer polymorphs formed from a large discotic supramolecular monomer (rosette), which consists of six hydrogen-bonded molecules with an extended π-conjugated core. These polymorphs are generated in mixtures of chloroform and methylcyclohexane, attributable to distinctly different disc stacking arrangements. The face-to-face (minimal displacement) and offset (large displacement) stacking arrangements can be predicated on their distinctive photophysical properties. The face-to-face stacking results in a twisted helix structure. Conversely, the offset stacking induces inherent curvature in the supramolecular fiber, thereby culminating in a hollow helical coil (helicoid). While both polymorphs exhibit bistability in nonpolar solvent compositions, the face-to-face stacking attains stability purely in a kinetic sense within a polar solvent composition and undergoes conversion into offset stacking through a dislocation of stacked rosettes. This occurs without the dissociation and nucleation of monomers, leading to unprecedented helicoidal folding of supramolecular polymers. Our findings augment our understanding of supramolecular polymer polymorphism, but they also highlight a distinctive method for achieving helicoidal folding in supramolecular polymers.
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Affiliation(s)
- Chie Otsuka
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
| | - Sho Takahashi
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
| | - Atsushi Isobe
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
| | - Takuho Saito
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
| | - Takumi Aizawa
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
| | - Ryoma Tsuchida
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
| | - Shuhei Yamashita
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, Chiba 263-8522, Japan
| | - Koji Harano
- Center for Basic Research on Materials, National Institute for Materials Science, Tsukuba 305-0044, Japan
| | - Hiroki Hanayama
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan
| | - Nobutaka Shimizu
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - Hideaki Takagi
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - Rie Haruki
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - Luzhi Liu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China
| | - Martin J Hollamby
- Department of Chemistry, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire ST55BG, U.K
| | - Takahiro Ohkubo
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan
| | - Shiki Yagai
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan
- Institute for Advanced Academic Research (IAAR), Chiba University, Chiba 263-8522, Japan
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7
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Yilmazer S, Schwaller D, Mésini PJ. Beyond Sol-Gel: Molecular Gels with Different Transitions. Gels 2023; 9:gels9040273. [PMID: 37102885 PMCID: PMC10137434 DOI: 10.3390/gels9040273] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
The existence of sol–gel transitions is one of the most manifest properties of molecular gels. These transitions reflect their nature since they correspond to the association or dissociation of low weight molecules through non-covalent interactions to form the network constitutive of the gel. Most described molecular gels undergo only one gel-to-sol transition upon heating, and the reverse sol-to-gel transition upon cooling. It has been long observed that different conditions of formation could lead to gels with different morphologies, and that gels can undergo a transition from gel to crystals. However, more recent publications report molecular gels which exhibit additional transitions, for instance gel-to-gel transitions. This review surveys the molecular gels for which, in addition to sol–gel transitions, transitions of different nature have been reported: gel-to-gel transitions, gel-to-crystal transition, liquid–liquid phase separations, eutectic transformations, and synereses.
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8
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Bujosa S, Doncel‐Giménez A, Bäumer N, Fernández G, Ortí E, Costa A, Rotger C, Aragó J, Soberats B. Thermoreversible Polymorph Transitions in Supramolecular Polymers of Hydrogen-Bonded Squaramides. Angew Chem Int Ed Engl 2022; 61:e202213345. [PMID: 36178740 PMCID: PMC9828658 DOI: 10.1002/anie.202213345] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Indexed: 01/12/2023]
Abstract
Hydrogen-bonded squaramide (SQ) supramolecular polymers exhibit uncommon thermoreversible polymorph transitions between particle- and fiber-like nanostructures. SQs 1-3, with different steric bulk, self-assemble in solution into particles (AggI) upon cooling to 298 K, and SQs 1 and 2, with only one dendronic group, show a reversible transformation into fibers (AggII) by further decreasing the temperature to 288 K. Nano-DSC and UV/Vis studies on SQ 1 reveal a concentration-dependent transition temperature and ΔH for the AggI-to-AggII conversion, while the kinetic studies on SQ 2 indicate the on-pathway nature of the polymorph transition. Spectroscopic and theoretical studies reveal that these transitions are triggered by the molecular reorganization of the SQ units changing from slipped to head-to-tail hydrogen bonding patterns. This work unveils the thermodynamic and kinetic aspects of reversible polymorph transitions that are of interest to develop stimuli-responsive systems.
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Affiliation(s)
- Sergi Bujosa
- Department of ChemistryUniversitat de les Illes BalearsCra. Valldemossa, Km. 7.507122Palma de MallorcaSpain
| | - Azahara Doncel‐Giménez
- Instituto de Ciencia Molecular (ICMol)Universidad de ValenciaC/Catedrático José Beltrán, 246980PaternaSpain
| | - Nils Bäumer
- Westfälische Wilhelms-Universität MünsterOrganisch-Chemisches InstitutCorrensstraße 3648149MünsterGermany
| | - Gustavo Fernández
- Westfälische Wilhelms-Universität MünsterOrganisch-Chemisches InstitutCorrensstraße 3648149MünsterGermany
| | - Enrique Ortí
- Instituto de Ciencia Molecular (ICMol)Universidad de ValenciaC/Catedrático José Beltrán, 246980PaternaSpain
| | - Antonio Costa
- Department of ChemistryUniversitat de les Illes BalearsCra. Valldemossa, Km. 7.507122Palma de MallorcaSpain
| | - Carmen Rotger
- Department of ChemistryUniversitat de les Illes BalearsCra. Valldemossa, Km. 7.507122Palma de MallorcaSpain
| | - Juan Aragó
- Instituto de Ciencia Molecular (ICMol)Universidad de ValenciaC/Catedrático José Beltrán, 246980PaternaSpain
| | - Bartolome Soberats
- Department of ChemistryUniversitat de les Illes BalearsCra. Valldemossa, Km. 7.507122Palma de MallorcaSpain
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Hogan DT, Sutherland TC. Multiple aggregates from multiple polymorphs: structural and mechanistic insight into organic dye aggregates. NANOSCALE 2022; 14:10327-10334. [PMID: 35822504 DOI: 10.1039/d2nr03211b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This case study provides evidence for the appearance of multiple aggregation forms of a single organic dye, arising from its packing polymorphs in the solid state. Each aggregate can be spectroscopically matched to one polymorph, acquiring nanoscopic structural information even in the absence of conventional H- or J-type aggregation spectral features. The conversion from one polymorphic aggregate to another supports the action of Ostwald's rule of stages in organic aggregates suspended in solution. Mechanistically, dye molecules from one aggregate dissociate then renucleate the more stable aggregate form, the first demonstration for an aggregation-induced emission-active organic dye.
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Affiliation(s)
- David T Hogan
- Department of Chemistry, University of Calgary, 2500 University Dr NW, T2N 1N4, Calgary, Alberta, Canada.
| | - Todd C Sutherland
- Department of Chemistry, University of Calgary, 2500 University Dr NW, T2N 1N4, Calgary, Alberta, Canada.
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10
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Takahashi S, Yagai S. Harmonizing Topological Features of Self-Assembled Fibers by Rosette-Mediated Random Supramolecular Copolymerization and Self-Sorting of Monomers by Photo-Cross-Linking. J Am Chem Soc 2022; 144:13374-13383. [PMID: 35833747 DOI: 10.1021/jacs.2c05484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Random copolymerization is an effective approach to synthesize the desired polymers by harmonizing distinct properties of different monomers. For supramolecular polymers in which monomer binding is inherently dynamic, it is difficult to achieve random copolymerization of monomers with distinct molecular structures and properties due to an enthalpic advantage upon self-recognition (self-sorting). Herein, we demonstrate an example of thermodynamically controlled random supramolecular copolymerization of two monomers functionalized with barbituric acid via the formation of six-membered hydrogen-bonded rosette intermediates to exhibit structural harmonization of the two main-chain motifs, i.e., intrinsically curved and linear motifs. One monomer based on naphthalene chromophore exclusively forms toroidal fibers, whereas another one bearing additional photoreactive diacetylene moiety affords linearly elongated fibers. Supramolecular copolymerization of the two monomers is achieved by cooling hot monomer mixtures in a nonpolar solvent, which results in the formation of thermodynamically stable spirally folded yet elongated fibers. Atomic force microscopic observations and theoretical simulations of the experimental data obtained by absorption spectroscopy reveal the homopolymerization of the diacetylene-functionalized monomer in the high-temperature region, followed by the incorporation of the naphthalene monomer in the medium-temperature region to form supramolecular copolymers with random monomer sequence. Finally, we demonstrate that the random copolymerization process can be switched to a narcissistically self-sorting one by deactivating monomer exchange through the photo-cross-linking of the diacetylene-functionalized monomers.
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Affiliation(s)
- Sho Takahashi
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Shiki Yagai
- Institute for Advanced Academic Research (IAAR), Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.,Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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11
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Kotha S, Sahu R, Srideep D, Yamijala SSRKC, Reddy SK, Rao KV. Cooperative supramolecular polymerization guided by dispersive interactions. Chem Asian J 2022; 17:e202200494. [DOI: 10.1002/asia.202200494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Srinu Kotha
- IITH: Indian Institute of Technology Hyderabad Chemistry INDIA
| | - Rahul Sahu
- IIT Kharagpur: Indian Institute of Technology Kharagpur Centre for Computational and Data Science INDIA
| | - Dasari Srideep
- IITH: Indian Institute of Technology Hyderabad Chemistry INDIA
| | - Sharma S. R. K. C. Yamijala
- IIT Madras: Indian Institute of Technology Madras Department of Chemistry and Center for Atomistic Modelling and Materials Design INDIA
| | - Sandeep Kumar Reddy
- IIT Kharagpur: Indian Institute of Technology Kharagpur Centre for Computational and Data Science INDIA
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12
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Datta S, Chaudhuri D. Reversible Supramolecular Polymorphism in Solution and Solid Matrix by Manipulating Sidegroup Conformation. Angew Chem Int Ed Engl 2022; 61:e202201956. [PMID: 35180328 DOI: 10.1002/anie.202201956] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Indexed: 12/28/2022]
Abstract
Reversible switching between supramolecular polymorphs offers a great way to introduce stimuli-responsiveness. Supramolecular polymorphism is usually achieved through pathway complexity, or by exploiting solvent-solute interactions. But, steering a self-assembly along a specific pathway to form a kinetically-stable aggregate is not easy. Also, changing solvent to switch between polymorphs is impractical. We present a perylene bisimide molecule with a trans-azobenzene sidegroup that assembles into three supramolecular polymorphs with distinct colors, morphologies, packing and aggregation mechanism. Optical absorption and FTIR spectroscopy reveal the importance of hydrogen-bonding interaction between protic solvent and azo N that controls the planarity of the azobenzene group and influences molecular packing. This interaction can be further modulated using temperature, and solution pH to reversibly switch between the three polymorphs, in solution as well as in solid silica-gel matrix.
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Affiliation(s)
- Saptarshi Datta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, India
| | - Debangshu Chaudhuri
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, India
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Srideep D, Sriram K, Kotha S, Babu DJ, Singh SK, Rao KV. Synthesis and Self-assembly of Benzoperylene Benzimidazoles: Tunable Morphology with Aggregation Induced Enhanced Emission. Chem Asian J 2022; 17:e202200099. [PMID: 35235252 DOI: 10.1002/asia.202200099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/02/2022] [Indexed: 11/06/2022]
Abstract
Benzoperylene benzimidazoles ( BPBIs ) based π-systems are synthesized and their self-assembly in both non-polar and polar solvents is investigated. Due to the presence of donor and acceptor functional groups, BPBIs absorb light up to 600 nm and display red fluorescence (575-800 nm). Depending on the solvent and side chain, BPBIs self-assemble into various nanostructures such as nanoribbons, nanorods, nanofibers and nanoparticles. Notably, these ordered nanostructures are formed by BPBIs in both polar and non-polar solvents without the aid of hydrogen bonding and amphiphilic interactions due to the presence of a large rigid π-system. Interestingly, BPBIs follow a weakly cooperative mechanism during the self-assembly. Moreover, BPBIs show aggregation induced enhanced emission (AIEE) in all the self-assembled nanostructures which is not common for rigid π-systems.
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Affiliation(s)
- Dasari Srideep
- IITH: Indian Institute of Technology Hyderabad, Chemistry, INDIA
| | - Kasilingam Sriram
- IITH: Indian Institute of Technology Hyderabad, Department of Materials Science and Metallurgical Engineering, INDIA
| | - Srinu Kotha
- IITH: Indian Institute of Technology Hyderabad, Chemistry, INDIA
| | - Deepu J Babu
- IITH: Indian Institute of Technology Hyderabad, Department of Materials Science and Metallurgical Engineering, INDIA
| | | | - Kotagiri Venkata Rao
- Indian Institute of Technology Hyderabad, Chemistry, Kandi, 502285, Hyderabad, INDIA
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14
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Datta S, Chaudhuri D. Reversible Supramolecular Polymorphism in Solution and Solid Matrix by Manipulating Sidegroup Conformation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Saptarshi Datta
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246 India
| | - Debangshu Chaudhuri
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246 India
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Kawaura M, Aizawa T, Takahashi S, Miyasaka H, Sotome H, Yagai S. Fluorescent supramolecular polymers of barbiturate dyes with thiophene-cored twisted π-systems. Chem Sci 2022; 13:1281-1287. [PMID: 35222911 PMCID: PMC8809409 DOI: 10.1039/d1sc06246h] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/08/2021] [Indexed: 01/01/2023] Open
Abstract
Because supramolecular polymerization of emissive π-conjugated molecules depends strongly on π-π stacking interaction, the formation of well-defined one-dimensional nanostructures often results in a decrease or only a small increase of emission efficiency. This is also true for our barbiturate-based supramolecular polymers wherein hydrogen-bonded rosettes of barbiturates stack quasi-one-dimensionally through π-π stacking interaction. Herein we report supramolecular polymerization-induced emission of two regioisomeric 2,3-diphenylthiophene derivatives functionalized with barbituric acid and tri(dodecyloxy)benzyl wedge units. In CHCl3, both compounds are molecularly dissolved and accordingly poorly emissive due to a torsion-induced non-radiative decay. In methylcyclohexane-rich conditions, these barbiturates self-assemble to form crystalline nanofibers and exhibit strongly enhanced emission through supramolecular polymerization driven by hydrogen-bonding. Our structural analysis suggests that the barbiturates form a tape-like hydrogen-bonding motif, which is rationalized by considering that the twisted geometries of 2,3-diphenylthiophene cores prevend the competing rosettes from stacking into columnar supramolecular polymers. We also found that a small difference in the molecular polarity originating from the substitutional position of the thiophene core influences interchain association of the supramolecular polymers, affording different luminescent soft materials, gel and nanosheet.
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Affiliation(s)
- Maika Kawaura
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Takumi Aizawa
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Sho Takahashi
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Hiroshi Miyasaka
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University 1-3 Machikaneyama, Toyonaka Osaka 560-8531 Japan
| | - Hikaru Sotome
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University 1-3 Machikaneyama, Toyonaka Osaka 560-8531 Japan
| | - Shiki Yagai
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
- Institute for Global Prominent Research (IGPR), Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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17
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Aizawa T, Kawaura M, Kajitani T, Hengphasatporn K, Shigeta Y, Yagai S. Supramolecular polymerization of thiobarbituric acid naphthalene dye. Chem Commun (Camb) 2022; 58:9365-9368. [DOI: 10.1039/d2cc02984g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Thiobarbituric acid-functionalized naphthalene dye selectively self-assembles into crystalline fibers to show material properties that are different from those of a previously reported oxo-barbituric acid derivative affording curved supramolecular polymers via...
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18
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Chakraborty A, Manna RN, Paul A, Ghosh S. Externally Regulated Specific Molecular Recognition Driven Pathway Selectivity in Supramolecular Polymerization. Chemistry 2021; 27:11458-11467. [PMID: 33978984 DOI: 10.1002/chem.202101492] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Indexed: 01/01/2023]
Abstract
This article reveals 4-dimethylaminopyridine (DMAP) regulated pathway selectivity in the supramolecular polymerization of a naphthalene-diimide derivative (NDI-1), appended with a carboxylic acid group. In decane, NDI-1 produces ill-defined aggregate (Agg-1) due to different H-bonding motifs of the -COOH group. With one mole equivalent DMAP, the NDI-1/DMAP complex introduces new nucleation condition and exhibits a cooperative supramolecular polymerization producing J-aggregated fibrillar nanostructure (Agg-2). With 10 % DMAP and fast cooling (10 K/min), similar nucleation and open chain H-bonding with the free monomer in an anti-parallel arrangement produces identical J-aggregate (Agg-2a). With 2.5 % DMAP and slow cooling (1 K/min), a distinct nucleation and supramolecular polymerization pathway emerge leading to the thermodynamically controlled Agg-3 with face-to-face stacking and 2D-morphology. Slow cooling with 5-10 % DMAP produces a mixture of Agg-2a and Agg-3. Computational modelling studies provide valuable insights into the internal order and the pathway complexity.
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Affiliation(s)
- Anwesha Chakraborty
- School of Applied and Interdisciplinary Sciences Indian Association for the Cultivation of Science, Kolkata, 2A and 2B Raja S. C. Mullick Road, India-, 700032
| | - Rabindra Nath Manna
- School of Chemical Sciences Indian Association for the Cultivation of Science, Kolkata, 2A and 2B Raja S. C. Mullick Road, India-, 700032
| | - Ankan Paul
- School of Chemical Sciences Indian Association for the Cultivation of Science, Kolkata, 2A and 2B Raja S. C. Mullick Road, India-, 700032
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences Indian Association for the Cultivation of Science, Kolkata, 2A and 2B Raja S. C. Mullick Road, India-, 700032
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19
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Shen CA, Bialas D, Hecht M, Stepanenko V, Sugiyasu K, Würthner F. Polymorphism in Squaraine Dye Aggregates by Self-Assembly Pathway Differentiation: Panchromatic Tubular Dye Nanorods versus J-Aggregate Nanosheets. Angew Chem Int Ed Engl 2021; 60:11949-11958. [PMID: 33751763 PMCID: PMC8252746 DOI: 10.1002/anie.202102183] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Indexed: 12/21/2022]
Abstract
A bis(squaraine) dye equipped with alkyl and oligoethyleneglycol chains was synthesized by connecting two dicyanomethylene substituted squaraine dyes with a phenylene spacer unit. The aggregation behavior of this bis(squaraine) was investigated in non-polar toluene/tetrachloroethane (98:2) solvent mixture, which revealed competing cooperative self-assembly pathways into two supramolecular polymorphs with entirely different packing structures and UV/Vis/NIR absorption properties. The self-assembly pathway can be controlled by the cooling rate from a heated solution of the monomers. For both polymorphs, quasi-equilibrium conditions between monomers and the respective aggregates can be established to derive thermodynamic parameters and insights into the self-assembly mechanisms. AFM measurements revealed a nanosheet structure with a height of 2 nm for the thermodynamically more stable polymorph and a tubular nanorod structure with a helical pitch of 13 nm and a diameter of 5 nm for the kinetically favored polymorph. Together with wide angle X-ray scattering measurements, packing models were derived: the thermodynamic polymorph consists of brick-work type nanosheets that exhibit red-shifted absorption bands as typical for J-aggregates, while the nanorod polymorph consists of eight supramolecular polymer strands of the bis(squaraine) intertwined to form a chimney-type tubular structure. The absorption of this aggregate covers a large spectral range from 550 to 875 nm, which cannot be rationalized by the conventional exciton theory. By applying the Essential States Model and considering intermolecular charge transfer, the aggregate spectrum was adequately reproduced, revealing that the broad absorption spectrum is due to pronounced donor-acceptor overlap within the bis(squaraine) nanorods. The latter is also responsible for the pronounced bathochromic shift observed for the nanosheet structure as a result of the slip-stacked arranged squaraine chromophores.
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Affiliation(s)
- Chia-An Shen
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - David Bialas
- Center for Nanosystems Chemistry (CNC) and Bavarian Polymer Institute (BPI), Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Markus Hecht
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
- Center for Nanosystems Chemistry (CNC) and Bavarian Polymer Institute (BPI), Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Vladimir Stepanenko
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Kazunori Sugiyasu
- National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
| | - Frank Würthner
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
- Center for Nanosystems Chemistry (CNC) and Bavarian Polymer Institute (BPI), Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
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20
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Tamaki K, Aizawa T, Yagai S. Wavy supramolecular polymers formed by hydrogen-bonded rosettes. Chem Commun (Camb) 2021; 57:4779-4782. [PMID: 33949513 DOI: 10.1039/d1cc01636a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A barbiturate-functionalized supramolecular monomer bearing an ester-linked biphenyl and azobenzene π-conjugated core affords wavy supramolecular polymers. The periodic inversion of curvature is due to the conformational rigidity of the monomer and repulsive interactions between rosettes. Photoisomerization of the azobenzene moiety increases the fragility of the main chain without deteriorating its periodic structure.
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Affiliation(s)
- Kenta Tamaki
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Takumi Aizawa
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Shiki Yagai
- Institute for Global Prominent Research (IGPR), Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan. and Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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21
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Levina EO, Khrenova MG, Tsirelson VG. The explicit role of electron exchange in the hydrogen bonded molecular complexes. J Comput Chem 2021; 42:870-882. [PMID: 33675552 DOI: 10.1002/jcc.26507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 01/22/2023]
Abstract
We applied a set of advanced bonding descriptors to establish the hidden electron density features and binding energy characteristics of intermolecular DH∙∙∙A hydrogen bonds (OH∙∙∙O, NH∙∙∙O and SH∙∙∙O) in 150 isolated and solvated molecular complexes. The exchange-correlation and Pauli potentials as well as corresponding local one-electron forces allowed us to explicitly ascertain how electron exchange defines the bonding picture in the proximity of the H-bond critical point. The electron density features of DH∙∙∙A interaction are governed by alterations in the electron localization in the H-bond region displaying itself in the exchange hole. At that, they do not depend on the variations in the exchange hole mobility. The electrostatic interaction mainly defines the energy of H-bonds of different types, whereas the strengthening/weakening of H-bonds in complexes with varying substituents depends on the barrier height of the exchange potential near the bond critical point. Energy variations between H-bonds in isolated and solvated systems are also caused the electron exchange peculiarities as follows from the corresponding potential and the interacting quantum atom analyses complemented by electron delocalization index calculations. Our approach is based on the bonding descriptors associated with the characteristics of the observable electron density and can be recommended for in-depth studies of non-covalent bonding.
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Affiliation(s)
- Elena O Levina
- Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Moscow, Russia.,Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Maria G Khrenova
- Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Moscow, Russia.,Moscow Institute of Physics and Technology, Dolgoprudny, Russia.,Lomonosov Moscow State University, Moscow, Russia
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22
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Shen C, Bialas D, Hecht M, Stepanenko V, Sugiyasu K, Würthner F. Polymorphism in Squaraine Dye Aggregates by Self‐Assembly Pathway Differentiation: Panchromatic Tubular Dye Nanorods versus J‐Aggregate Nanosheets. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102183] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Chia‐An Shen
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - David Bialas
- Center for Nanosystems Chemistry (CNC) and Bavarian Polymer Institute (BPI) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Markus Hecht
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC) and Bavarian Polymer Institute (BPI) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Vladimir Stepanenko
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Kazunori Sugiyasu
- National Institute for Materials Science (NIMS) 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan
| | - Frank Würthner
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC) and Bavarian Polymer Institute (BPI) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
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23
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Anderson BA, Fauché K, Karunakaran SC, Yerabolu JR, Hud NV, Krishnamurthy R. The Unexpected Base‐Pairing Behavior of Cyanuric Acid in RNA and Ribose versus Cyanuric Acid Induced Helicene Assembly of Nucleic Acids: Implications for the Pre‐RNA Paradigm. Chemistry 2021; 27:4033-4042. [DOI: 10.1002/chem.202004397] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/08/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Brooke A. Anderson
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
- NSF-NASA Center for Chemical Evolution Atlanta GA 30332 USA
| | - Kévin Fauché
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
- NSF-NASA Center for Chemical Evolution Atlanta GA 30332 USA
| | - Suneesh C. Karunakaran
- School of Chemistry and Biochemistry Parker H. Petit Institute for Bioengineering and Bioscience Georgia Institute of Technology 901 Atlantic Drive Atlanta GA 30332 USA
- NSF-NASA Center for Chemical Evolution Atlanta GA 30332 USA
| | - Jayasudhan R. Yerabolu
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
- NSF-NASA Center for Chemical Evolution Atlanta GA 30332 USA
| | - Nicholas V. Hud
- School of Chemistry and Biochemistry Parker H. Petit Institute for Bioengineering and Bioscience Georgia Institute of Technology 901 Atlantic Drive Atlanta GA 30332 USA
- NSF-NASA Center for Chemical Evolution Atlanta GA 30332 USA
| | - Ramanarayanan Krishnamurthy
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
- NSF-NASA Center for Chemical Evolution Atlanta GA 30332 USA
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24
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Tamaki K, Datta S, Tashiro K, Isobe A, Silly F, Yagai S. Effect of Azobenzene Regioisomerism on Intrinsically Curved Supramolecular Polymers. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000535] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kenta Tamaki
- Division of Advanced Science and Engineering Graduate School of Science and Engineering Chiba University 1-33 Yayoi-cho Inage-ku Chiba 263-8522 Japan
| | - Sougata Datta
- Department of Applied Chemistry and Biotechnology Chiba University 1-33 Yayoi-cho Inage-ku Chiba 263-8522 Japan
| | - Keigo Tashiro
- Institute for Global Prominent Research (IGPR) Chiba University 1-33 Yayoi-cho Inage-ku Chiba 263-8522 Japan
| | - Atsushi Isobe
- Division of Advanced Science and Engineering Graduate School of Science and Engineering Chiba University 1-33 Yayoi-cho Inage-ku Chiba 263-8522 Japan
| | - Fabien Silly
- TITANS SPEC CEA CNRS Université Paris-Saclay CEA Saclay F-91191 Gif sur Yvette France
| | - Shiki Yagai
- Institute for Global Prominent Research (IGPR) Chiba University 1-33 Yayoi-cho Inage-ku Chiba 263-8522 Japan
- Department of Applied Chemistry and Biotechnology Chiba University 1-33 Yayoi-cho Inage-ku Chiba 263-8522 Japan
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25
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Aizawa T, Takahashi S, Isobe A, Datta S, Sotome H, Miyasaka H, Kajitani T, Yagai S. Fluorescent Supramolecular Polymorphism Driven by Distinct Hydrogen Bonding Lattice. CHEM LETT 2020. [DOI: 10.1246/cl.200329] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takumi Aizawa
- Division of Advanced Science and Engineering, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Sho Takahashi
- Division of Advanced Science and Engineering, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Atsushi Isobe
- Division of Advanced Science and Engineering, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Sougata Datta
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hikaru Sotome
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Hiroshi Miyasaka
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Takashi Kajitani
- Materials Analysis Division, Open Facility Center, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Shiki Yagai
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Institute for Global Prominent Research (IGPR), Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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Supramolecular double-stranded Archimedean spirals and concentric toroids. Nat Commun 2020; 11:3578. [PMID: 32681045 PMCID: PMC7368029 DOI: 10.1038/s41467-020-17356-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/23/2020] [Indexed: 02/06/2023] Open
Abstract
Connecting molecular-level phenomena to larger scales and, ultimately, to sophisticated molecular systems that resemble living systems remains a considerable challenge in supramolecular chemistry. To this end, molecular self-assembly at higher hierarchical levels has to be understood and controlled. Here, we report unusual self-assembled structures formed from a simple porphyrin derivative. Unexpectedly, this formed a one-dimensional (1D) supramolecular polymer that coiled to give an Archimedean spiral. Our analysis of the supramolecular polymerization by using mass-balance models suggested that the Archimedean spiral is formed at high concentrations of the monomer, whereas other aggregation types might form at low concentrations. Gratifyingly, we discovered that our porphyrin-based monomer formed supramolecular concentric toroids at low concentrations. Moreover, a mechanistic insight into the self-assembly process permitted a controlled synthesis of these concentric toroids. This study both illustrates the richness of self-assembled structures at higher levels of hierarchy and demonstrates a topological effect in noncovalent synthesis. Connecting molecular-level phenomena to larger scales and molecular systems that resemble living systems remains a considerable challenge in supramolecular chemistry. Here, the authors report different self-assembly patterns in a porphyrin structure which can form – depending on the concentration - spirals or toroids.
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27
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Ghosh G, Dey P, Ghosh S. Controlled supramolecular polymerization of π-systems. Chem Commun (Camb) 2020; 56:6757-6769. [DOI: 10.1039/d0cc02787a] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Externally-initiated controlled supramolecular polymerization of the kinetically trapped aggregated state in a chain growth mechanism can produce well-defined living supramolecular polymers and copolymers.
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Affiliation(s)
- Goutam Ghosh
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation Science
- Kolkata
- India
| | - Pradip Dey
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation Science
- Kolkata
- India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation Science
- Kolkata
- India
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