1
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Mallick K, Paul S, Banerjee S, Banerjee S. Lipid Droplets and Neurodegeneration. Neuroscience 2024; 549:13-23. [PMID: 38718916 DOI: 10.1016/j.neuroscience.2024.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/19/2024] [Accepted: 04/25/2024] [Indexed: 05/15/2024]
Abstract
Energy metabolism in the brain has been considered one of the critical research areas of neuroscience for ages. One of the most vital parts of brain metabolism cascades is lipid metabolism, and fatty acid plays a crucial role in this process. The fatty acid breakdown process in mitochondria undergoes through a conserved pathway known as β-oxidation where acetyl-CoA and shorter fatty acid chains are produced along with a significant amount of energy molecule. Further, the complete breakdown of fatty acids occurs when they enter the mitochondrial oxidative phosphorylation. Cells store energy as neutral lipids in organelles known as Lipid Droplets (LDs) to prepare for variations in the availability of nutrients. Fatty acids are liberated by lipid droplets and are transported to various cellular compartments for membrane biogenesis or as an energy source. Current research shows that LDs are important in inflammation, metabolic illness, and cellular communication. Lipid droplet biology in peripheral organs like the liver and heart has been well investigated, while the brain's LDs have received less attention. Recently, there has been increased awareness of the existence and role of these dynamic organelles in the central nervous system, mainly connected to neurodegeneration. In this review, we discussed the role of beta-oxidation and lipid droplet formation in the oxidative phosphorylation process, which directly affects neurodegeneration through various pathways.
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Affiliation(s)
- Keya Mallick
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Kolkata, India.
| | - Shuchismita Paul
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Kolkata, India.
| | - Sayani Banerjee
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Kolkata, India.
| | - Sugato Banerjee
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Kolkata, India.
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2
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Shi H, Ponte F, Grewal JS, Clarkson GJ, Imberti C, Hands-Portman I, Dallmann R, Sicilia E, Sadler PJ. Tuning the photoactivated anticancer activity of Pt(iv) compounds via distant ferrocene conjugation. Chem Sci 2024; 15:4121-4134. [PMID: 38487220 PMCID: PMC10935708 DOI: 10.1039/d3sc03092j] [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: 06/17/2023] [Accepted: 01/30/2024] [Indexed: 03/17/2024] Open
Abstract
Photoactive prodrugs offer potential for spatially-selective antitumour activity with minimal effects on normal tissues. Excited-state chemistry can induce novel effects on biochemical pathways and combat resistance to conventional drugs. Photoactive metal complexes in particular, have a rich and relatively unexplored photochemistry, especially an ability to undergo facile intersystem crossing and populate triplet states. We have conjugated the photoactive octahedral Pt(iv) complex trans, trans, trans-[Pt(N3)2(OH)2(py)2] to ferrocene to introduce novel features into a candidate photochemotherapeutic drug. The X-ray crystal structure of the conjugate Pt-Fe confirmed the axial coordination of a ferrocene carboxylate, with Pt(iv) and Fe(ii) 6.07 Å apart. The conjugation of ferrocene red-shifted the absorption spectrum and ferrocene behaves as a light antenna allowing charge transfer from iron to platinum, promoting the photoactivation of Pt-Fe with light of longer wavelength. Cancer cellular accumulation is enhanced, and generation of reactive species is catalysed after photoirradiation, introducing ferroptosis as a contribution towards the cell-death mechanism. TDDFT calculations were performed to shed light on the behaviour of Pt-Fe when it is irradiated. Intersystem spin-crossing allows the formation of triplet states centred on both metal atoms. The dissociative nature of triplet states confirms that they can be involved in ligand detachment due to irradiation. The Pt(ii) photoproducts mainly retain the trans-{Pt(py)2}2+fragment. Visible light irradiation gives rise to micromolar activity for Pt-Fe towards ovarian, lung, prostate and bladder cancer cells under both normoxia and hypoxia, and some photoproducts appear to retain Pt(iv)-Fe(ii) conjugation.
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Affiliation(s)
- Huayun Shi
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
| | - Fortuna Ponte
- Department of Chemistry and Chemical Technologies, University of Calabria via Pietro Bucci, 87036 Arcavacata di Rende Cs Italy
| | - Jaspreet S Grewal
- Division of Biomedical Sciences, Warwick Medical School CV4 7AL Coventry UK
| | - Guy J Clarkson
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
| | - Cinzia Imberti
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
| | | | - Robert Dallmann
- Division of Biomedical Sciences, Warwick Medical School CV4 7AL Coventry UK
| | - Emilia Sicilia
- Department of Chemistry and Chemical Technologies, University of Calabria via Pietro Bucci, 87036 Arcavacata di Rende Cs Italy
| | - Peter J Sadler
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
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3
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Stähler C, Reynaerts R, Rinkovec T, Verstraete L, Heideman GH, Minoia A, Harvey JN, Mali KS, De Feyter S, Feringa BL. Highly Ordered Co-Assembly of Bisurea Functionalized Molecular Switches at the Solid-Liquid Interface. Chemistry 2024:e202303994. [PMID: 38323675 DOI: 10.1002/chem.202303994] [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: 11/30/2023] [Indexed: 02/08/2024]
Abstract
Immobilization of stimulus-responsive systems on solid surfaces is beneficial for controlled signal transmission and adaptive behavior while allowing the characterization of the functional interface with high sensitivity and high spatial resolution. Positioning of the stimuli-responsive units with nanometer-scale precision across the adaptive surface remains one of the bottlenecks in the extraction of cooperative function. Nanoscale organization, cooperativity, and amplification remain key challenges in bridging the molecular and the macroscopic worlds. Here we report on the design, synthesis, and scanning tunneling microscopy (STM) characterization of overcrowded alkene photoswitches merged in self-assembled networks physisorbed at the solid-liquid interface. A detailed anchoring strategy that ensures appropriate orientation of the switches with respect to the solid surface through the use of bis-urea groups is presented. We implement a co-assembly strategy that enables the merging of the photoswitches within physisorbed monolayers of structurally similar 'spacer' molecules. The self-assembly of the individual components and the co-assemblies was examined in detail using (sub)molecular resolution STM which confirms the robust immobilization and controlled orientation of the photoswitches within the spacer monolayers. The experimental STM data is supported by detailed molecular mechanics (MM) simulations. Different designs of the switches and the spacers were investigated which allowed us to formulate guidelines that enable the precise organization of the photoswitches in crystalline physisorbed self-assembled molecular networks.
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Affiliation(s)
- Cosima Stähler
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Robby Reynaerts
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Tamara Rinkovec
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Lander Verstraete
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
- imec, Kapeldreef 75, 3001, Leuven, Belgium
| | - G Henrieke Heideman
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Andrea Minoia
- Laboratory for Chemistry of Novel Materials, Materials Research Institute, University of Mons, Place du Parc 20, 7000, Mons, Belgium
| | - Jeremy N Harvey
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Kunal S Mali
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Ben L Feringa
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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4
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Stähler C, Pooler DRS, Costil R, Sudan D, van der Meulen P, Toyoda R, Feringa BL. Coupled Rocking Motion in a Light-Driven Rotary Molecular Motor. J Org Chem 2024; 89:1-8. [PMID: 36223433 PMCID: PMC10777401 DOI: 10.1021/acs.joc.2c01830] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Indexed: 11/29/2022]
Abstract
Coupled motion is ubiquitous in Nature as it forms the base for the direction, amplification, propagation, and synchronization of movement. Herein, we present experimental proof for the coupling of the rocking motion of a dihydroanthracene stator moiety with the light-induced rotational movement of an overcrowded alkene-based molecular motor. The motor was desymmetrized, introducing two different alkyl substituents to the stator part of the molecular scaffold, resulting in the formation of two diastereomers with opposite axial chirality. The structure of the two isomers is determined with nuclear Overhauser effect spectroscopy NMR and single-crystal X-ray analysis. The desymmetrization enables the study of the coupled motion, that is, rotation and oscillation, by 1H NMR, findings that are further supported by density functional theory calculations. A new handle to regulate the rotational speed of the motor through functionalization in the bottom half was also introduced, as the thermal barrier for thermal helix inversion is found to be largely dependent on the alkyl substituents and its orientation toward the upper half of the motor scaffold. In addition to the commonly observed successive photochemical and thermal steps driving the rotation of the motor, we find that the motor undergoes photochemically driven rotation in three of the four steps of the rotation cycle. Hence, this result extends the scope of molecular motors capable of photon-only rotary behavior.
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Affiliation(s)
- Cosima Stähler
- Stratingh Institute for Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Daisy R. S. Pooler
- Stratingh Institute for Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Romain Costil
- Stratingh Institute for Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Dhruv Sudan
- Stratingh Institute for Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Pieter van der Meulen
- Stratingh Institute for Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Ryojun Toyoda
- Stratingh Institute for Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Ben L. Feringa
- Stratingh Institute for Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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5
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Hamo Y, Neudert A, Bendikov T, Lahav M, van der Boom ME. Compositionally Controlled Electron Transfer in Metallo-Organics. J Am Chem Soc 2023; 145:18075-18083. [PMID: 37529898 PMCID: PMC10436274 DOI: 10.1021/jacs.3c05874] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Indexed: 08/03/2023]
Abstract
We demonstrate here the assembly of a nanolayer of electrochromic iron complexes on the top of composite layers of cobalt and ruthenium complexes. Depending on the ratio of the latter two complexes, we can tailor materials that show different electron transport pathways, redox activities, and color transitions. No redox activity of the top layer, consisting of iron complexes, is observable when the relative amount of the ruthenium complexes is low in the underlying composite layer because of the insulating properties of the isostructural cobalt complexes. Increasing the amount of ruthenium complexes opens an electron transport channel, resulting in charge storage in both the cobalt and iron complexes. The trapped charges can be chemically released by redox-active ferrocyanide complexes at the film-water interface.
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Affiliation(s)
- Yonatan Hamo
- Department
of Molecular Chemistry and Materials Science, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Alena Neudert
- Department
of Molecular Chemistry and Materials Science, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Tatyana Bendikov
- Department
of Chemical Research Support, The Weizmann
Institute of Science, 7610001 Rehovot, Israel
| | - Michal Lahav
- Department
of Molecular Chemistry and Materials Science, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Milko E. van der Boom
- Department
of Molecular Chemistry and Materials Science, The Weizmann Institute of Science, 7610001 Rehovot, Israel
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6
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Thomas D, Tetlow DJ, Ren Y, Kassem S, Karaca U, Leigh DA. Pumping between phases with a pulsed-fuel molecular ratchet. NATURE NANOTECHNOLOGY 2022; 17:701-707. [PMID: 35379944 DOI: 10.1038/s41565-022-01097-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
The sorption of species from a solution into and onto solids underpins the sequestering of waste and pollutants, precious metal recovery, heterogeneous catalysis, analysis and separation science, and other technologies1,2. The transfer between phases tends to proceed spontaneously in the direction of equilibrium. For example, alkyl ammonium groups mounted on silica nanoparticles are used to chemisorb cucurbituril macrocycles from solution through host-guest binding3,4. Molecular ratchet mechanisms5-7, in which kinetic gating8-12 inhibits or accelerates particular steps, makes it possible to progressively drive dynamic systems13-16 away from equilibrium17-21. Here we report on molecular pumps22 immobilized on polymer beads23-25 that use an energy ratchet mechanism5,9,19-21,26-30 to directionally transport substrates from solution onto the beads. On the addition of trichloroacetic acid (CCl3CO2H)19,31-33 fuel19,34-37, micrometre-diameter polystyrene beads functionalized38 with solvent-accessible molecular pumps sequester from the solution crown ethers appended with fluorescent tags. After fuel consumption, the rings are mechanically trapped in a higher-energy, out-of-equilibrium state on the beads and cannot be removed by dilution or exhaustive washing. This differs from dissipative assembled materials11,13-16, which require a continuous supply of energy to persist, and from conventional host-guest complexes. The addition of a second fuel pulse causes the uptake of more macrocycles, which drives the system further away from equilibrium. The second macrocycle can be labelled with a different fluorescent tag, which confers sequence information39 on the absorbed structure. The polymer-bound substrates can be released back to the bulk either one compartment at a time or all at once. Non-equilibrium40 sorption by immobilized artificial molecular machines41-45 enables the transduction of energy from chemical fuels for the use, storage and release of energy and information.
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Affiliation(s)
- Dean Thomas
- Department of Chemistry, University of Manchester, Manchester, UK
| | - Daniel J Tetlow
- Department of Chemistry, University of Manchester, Manchester, UK
| | - Yansong Ren
- Department of Chemistry, University of Manchester, Manchester, UK
| | - Salma Kassem
- Department of Chemistry, University of Manchester, Manchester, UK
| | - Ulvi Karaca
- Department of Chemistry, University of Manchester, Manchester, UK
| | - David A Leigh
- Department of Chemistry, University of Manchester, Manchester, UK.
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China.
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7
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Kunfi A, Ábrahám Á, Gyulai G, Kiss É, London G. Light‐Induced and Thermal Isomerization of Azobenzenes on Immobilized Gold Nanoparticle Aggregates. Chempluschem 2022; 87:e202200153. [DOI: 10.1002/cplu.202200153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/24/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Attila Kunfi
- Research Centre for Natural Sciences: Termeszettudomanyi Kutatokozpont Institute of Organic Chemistry HUNGARY
| | - Ágnes Ábrahám
- Eötvös Loránd Tudományegyetem: Eotvos Lorand Tudomanyegyetem Laboratory of Interfaces and Nanostructures HUNGARY
| | - Gergő Gyulai
- Eötvös Loránd Tudományegyetem: Eotvos Lorand Tudomanyegyetem Laboratory of Interfaces and Nanostructures HUNGARY
| | - Éva Kiss
- Eötvös Loránd Tudományegyetem: Eotvos Lorand Tudomanyegyetem Laboratory of Interfaces and Nanostructures HUNGARY
| | - Gabor London
- Research Centre for Natural Sciences Institute of Organic Chemistry Magyar tudósok körűtja 2. 1117 Budapest HUNGARY
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8
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Jeong Y, Jin S, Palanikumar L, Choi H, Shin E, Go EM, Keum C, Bang S, Kim D, Lee S, Kim M, Kim H, Lee KH, Jana B, Park MH, Kwak SK, Kim C, Ryu JH. Stimuli-Responsive Adaptive Nanotoxin to Directly Penetrate the Cellular Membrane by Molecular Folding and Unfolding. J Am Chem Soc 2022; 144:5503-5516. [PMID: 35235326 DOI: 10.1021/jacs.2c00084] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Biological nanomachines, including proteins and nucleic acids whose function is activated by conformational changes, are involved in every biological process, in which their dynamic and responsive behaviors are controlled by supramolecular recognition. The development of artificial nanomachines that mimic the biological functions for potential application as therapeutics is emerging; however, it is still limited to the lower hierarchical level of the molecular components. In this work, we report a synthetic machinery nanostructure in which actuatable molecular components are integrated into a hierarchical nanomaterial in response to external stimuli to regulate biological functions. Two nanometers core-sized gold nanoparticles are covered with ligand layers as actuatable components, whose folding/unfolding motional response to the cellular environment enables the direct penetration of the nanoparticles across the cellular membrane to disrupt intracellular organelles. Furthermore, the pH-responsive conformational movements of the molecular components can induce the apoptosis of cancer cells. This strategy based on the mechanical motion of molecular components on a hierarchical nanocluster would be useful to design biomimetic nanotoxins.
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Affiliation(s)
- Youngdo Jeong
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.,Department of HY-KIST Bio-convergence, Hanyang University, Seoul 04763, Republic of Korea
| | - Soyeong Jin
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.,Department of Chemistry, School of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
| | - L Palanikumar
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Huyeon Choi
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Eunhye Shin
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Eun Min Go
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Changjoon Keum
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Seunghwan Bang
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.,Division of Bio-Medical Science & Technology, Biomedical Engineering, KIST School, Korea University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Dongkap Kim
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.,Department of Chemistry, School of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
| | - Seungho Lee
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Minsoo Kim
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.,Department of Chemistry, School of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
| | - Hojun Kim
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Kwan Hyi Lee
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.,KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Batakrishna Jana
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Myoung-Hwan Park
- Department of Chemistry & Life Science, Sahmyook University, Seoul 01795, Republic of Korea
| | - Sang Kyu Kwak
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Chaekyu Kim
- Fusion Biotechnology, Inc., Ulsan 44919, Republic of Korea
| | - Ja-Hyoung Ryu
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
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9
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Meier D, Adak AK, Knecht P, Reichert J, Mondal S, Suryadevara N, Kuppusamy SK, Eguchi K, Muntwiler MK, Allegretti F, Ruben M, Barth JV, Narasimhan S, Papageorgiou AC. Rotation in an Enantiospecific Self‐Assembled Array of Molecular Raffle Wheels. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dennis Meier
- Physics Department E20 Technical University of Munich (TUM) James Franck Strasse 1 85748 Garching Germany
| | - Abhishek K. Adak
- Theoretical Sciences Unit & School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur Bangalore 560054 India
| | - Peter Knecht
- Physics Department E20 Technical University of Munich (TUM) James Franck Strasse 1 85748 Garching Germany
| | - Joachim Reichert
- Physics Department E20 Technical University of Munich (TUM) James Franck Strasse 1 85748 Garching Germany
| | - Sourav Mondal
- Theoretical Sciences Unit & School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur Bangalore 560054 India
| | - Nithin Suryadevara
- Institute of Nanotechnology Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Senthil Kumar Kuppusamy
- Institute for Quantum Materials and Technologies Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Keitaro Eguchi
- Physics Department E20 Technical University of Munich (TUM) James Franck Strasse 1 85748 Garching Germany
| | | | - Francesco Allegretti
- Physics Department E20 Technical University of Munich (TUM) James Franck Strasse 1 85748 Garching Germany
| | - Mario Ruben
- Institute of Nanotechnology Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institute for Quantum Materials and Technologies Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Centre Européen de Sciences Quantiques (CESQ) Institut de Science et d'Ingénierie Supramoléculaires (ISIS) 8 allée Gaspard Monge, BP 70028 67083 Strasbourg Cedex France
| | - Johannes V. Barth
- Physics Department E20 Technical University of Munich (TUM) James Franck Strasse 1 85748 Garching Germany
| | - Shobhana Narasimhan
- Theoretical Sciences Unit & School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur Bangalore 560054 India
| | - Anthoula C. Papageorgiou
- Physics Department E20 Technical University of Munich (TUM) James Franck Strasse 1 85748 Garching Germany
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10
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Meier D, Adak AK, Knecht P, Reichert J, Mondal S, Suryadevara N, Kuppusamy SK, Eguchi K, Muntwiler MK, Allegretti F, Ruben M, Barth JV, Narasimhan S, Papageorgiou AC. Rotation in an Enantiospecific Self-Assembled Array of Molecular Raffle Wheels. Angew Chem Int Ed Engl 2021; 60:26932-26938. [PMID: 34555241 PMCID: PMC9299480 DOI: 10.1002/anie.202107708] [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: 06/09/2021] [Revised: 09/21/2021] [Indexed: 11/09/2022]
Abstract
Tailored nano-spaces can control enantioselective adsorption and molecular motion. We report on the spontaneous assembly of a dynamic system-a rigid kagome network with each pore occupied by a guest molecule-employing solely 2,6-bis(1H-pyrazol-1-yl)pyridine-4-carboxylic acid on Ag(111). The network cavity snugly hosts the chemically modified guest, bestows enantiomorphic adsorption and allows selective rotational motions. Temperature-dependent scanning tunnelling microscopy studies revealed distinct anchoring orientations of the guest unit switching with a 0.95 eV thermal barrier. H-bonding between the guest and the host transiently stabilises the rotating guest, as the flapper on a raffle wheel. Density functional theory investigations unravel the detailed molecular pirouette of the guest and how the energy landscape is determined by H-bond formation and breakage. The origin of the guest's enantiodirected, dynamic anchoring lies in the specific interplay of the kagome network and the silver surface.
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Affiliation(s)
- Dennis Meier
- Physics Department E20, Technical University of Munich (TUM), James Franck Strasse 1, 85748, Garching, Germany
| | - Abhishek K Adak
- Theoretical Sciences Unit & School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, 560054, India
| | - Peter Knecht
- Physics Department E20, Technical University of Munich (TUM), James Franck Strasse 1, 85748, Garching, Germany
| | - Joachim Reichert
- Physics Department E20, Technical University of Munich (TUM), James Franck Strasse 1, 85748, Garching, Germany
| | - Sourav Mondal
- Theoretical Sciences Unit & School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, 560054, India
| | - Nithin Suryadevara
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Senthil Kumar Kuppusamy
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Keitaro Eguchi
- Physics Department E20, Technical University of Munich (TUM), James Franck Strasse 1, 85748, Garching, Germany
| | | | - Francesco Allegretti
- Physics Department E20, Technical University of Munich (TUM), James Franck Strasse 1, 85748, Garching, Germany
| | - Mario Ruben
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Centre Européen de Sciences Quantiques (CESQ), Institut de Science et d'Ingénierie Supramoléculaires (ISIS), 8 allée Gaspard Monge, BP 70028, 67083, Strasbourg Cedex, France
| | - Johannes V Barth
- Physics Department E20, Technical University of Munich (TUM), James Franck Strasse 1, 85748, Garching, Germany
| | - Shobhana Narasimhan
- Theoretical Sciences Unit & School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, 560054, India
| | - Anthoula C Papageorgiou
- Physics Department E20, Technical University of Munich (TUM), James Franck Strasse 1, 85748, Garching, Germany
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11
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Torabi M, Zolfigol MA, Yarie M, Notash B, Azizian S, Azandaryani MM. Synthesis of triarylpyridines with sulfonate and sulfonamide moieties via a cooperative vinylogous anomeric-based oxidation. Sci Rep 2021; 11:16846. [PMID: 34413326 PMCID: PMC8377147 DOI: 10.1038/s41598-021-95830-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 07/21/2021] [Indexed: 02/07/2023] Open
Abstract
Herein, novel magnetic nanoparticles with pyridinium bridges namely Fe3O4@SiO2@PCLH-TFA through a multi-step pathway were designed and synthesized. The desired catalyst and its corresponding precursors were characterized with different techniques such as Fourier transform infrared (FT-IR) spectroscopy, 1H NMR, 13C NMR, Mass spectroscopy, energy dispersive X-ray (EDX) analysis, thermogravimetric/derivative thermogravimetry (TG/DTG) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and vibrating sample magnetometer (VSM). In addition, the catalytic application of the prepared catalyst in the synthesis of new series of triarylpyridines bearing sulfonate and sulfonamide moieties via a cooperative vinylogous anomeric-based oxidation was highlighted. The current trend revealed that the mentioned catalyst shows high recoverability in the reported synthesis.
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Affiliation(s)
- Morteza Torabi
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, 6517838683, Hamedan, Iran
| | - Mohammad Ali Zolfigol
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, 6517838683, Hamedan, Iran.
| | - Meysam Yarie
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, 6517838683, Hamedan, Iran
| | - Behrouz Notash
- Department of Inorganic Chemistry and Catalysis, Shahid Beheshti University, Evin, Tehran, Iran
| | - Saeid Azizian
- Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, 6517838683, Hamedan, Iran
| | - Mina Mirzaei Azandaryani
- Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, 6517838683, Hamedan, Iran
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12
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Hou J, Mondal A, Long G, de Haan L, Zhao W, Zhou G, Liu D, Broer DJ, Chen J, Feringa BL. Photo-responsive Helical Motion by Light-Driven Molecular Motors in a Liquid-Crystal Network. Angew Chem Int Ed Engl 2021; 60:8251-8257. [PMID: 33511680 PMCID: PMC8048625 DOI: 10.1002/anie.202016254] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Indexed: 12/16/2022]
Abstract
Controlling sophisticated motion by molecular motors is a major goal on the road to future actuators and soft robotics. Taking inspiration from biological motility and mechanical functions common to artificial machines, responsive small molecules have been used to achieve macroscopic effects, however, translating molecular movement along length scales to precisely defined linear, twisting and rotary motions remain particularly challenging. Here, we present the design, synthesis and functioning of liquid‐crystal network (LCN) materials with intrinsic rotary motors that allow the conversion of light energy into reversible helical motion. In this responsive system the photochemical‐driven molecular motor has a dual function operating both as chiral dopant and unidirectional rotor amplifying molecular motion into a controlled and reversible left‐ or right‐handed macroscopic twisting movement. By exploiting the dynamic chirality, directionality of motion and shape change of a single motor embedded in an LC‐network, complex mechanical motions including bending, walking and helical motion, in soft polymer materials are achieved which offers fascinating opportunities toward inherently photo‐responsive materials.
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Affiliation(s)
- Jiaxin Hou
- SCNU-UG International Joint Laboratory of Molecular Science and DisplaysNational Center for International Research on Green OptoelectronicsSouth China Normal UniversityGuangzhou510006China
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
| | - Anirban Mondal
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
| | - Guiying Long
- SCNU-UG International Joint Laboratory of Molecular Science and DisplaysNational Center for International Research on Green OptoelectronicsSouth China Normal UniversityGuangzhou510006China
| | - Laurens de Haan
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM)Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper DisplaysSouth China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China
- Stimuli-responsive Functional Materials and DevicesDepartment of Chemical Engineering and ChemistryEindhoven University of TechnologyDen Dolech 2, 5600MBEindhovenThe Netherlands
| | - Wei Zhao
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM)Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper DisplaysSouth China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China
| | - Guofu Zhou
- SCNU-UG International Joint Laboratory of Molecular Science and DisplaysNational Center for International Research on Green OptoelectronicsSouth China Normal UniversityGuangzhou510006China
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM)Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper DisplaysSouth China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China
| | - Danqing Liu
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM)Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper DisplaysSouth China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China
- Stimuli-responsive Functional Materials and DevicesDepartment of Chemical Engineering and ChemistryEindhoven University of TechnologyDen Dolech 2, 5600MBEindhovenThe Netherlands
| | - Dirk J. Broer
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM)Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper DisplaysSouth China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China
- Stimuli-responsive Functional Materials and DevicesDepartment of Chemical Engineering and ChemistryEindhoven University of TechnologyDen Dolech 2, 5600MBEindhovenThe Netherlands
| | - Jiawen Chen
- SCNU-UG International Joint Laboratory of Molecular Science and DisplaysNational Center for International Research on Green OptoelectronicsSouth China Normal UniversityGuangzhou510006China
| | - Ben L. Feringa
- SCNU-UG International Joint Laboratory of Molecular Science and DisplaysNational Center for International Research on Green OptoelectronicsSouth China Normal UniversityGuangzhou510006China
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
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13
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Hou J, Mondal A, Long G, Haan L, Zhao W, Zhou G, Liu D, Broer DJ, Chen J, Feringa BL. Photo‐responsive Helical Motion by Light‐Driven Molecular Motors in a Liquid‐Crystal Network. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016254] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jiaxin Hou
- SCNU-UG International Joint Laboratory of Molecular Science and Displays National Center for International Research on Green Optoelectronics South China Normal University Guangzhou 510006 China
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Anirban Mondal
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Guiying Long
- SCNU-UG International Joint Laboratory of Molecular Science and Displays National Center for International Research on Green Optoelectronics South China Normal University Guangzhou 510006 China
| | - Laurens Haan
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM) Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangzhou 510006 China
- Stimuli-responsive Functional Materials and Devices Department of Chemical Engineering and Chemistry Eindhoven University of Technology Den Dolech 2, 5600 MB Eindhoven The Netherlands
| | - Wei Zhao
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM) Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangzhou 510006 China
| | - Guofu Zhou
- SCNU-UG International Joint Laboratory of Molecular Science and Displays National Center for International Research on Green Optoelectronics South China Normal University Guangzhou 510006 China
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM) Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangzhou 510006 China
| | - Danqing Liu
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM) Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangzhou 510006 China
- Stimuli-responsive Functional Materials and Devices Department of Chemical Engineering and Chemistry Eindhoven University of Technology Den Dolech 2, 5600 MB Eindhoven The Netherlands
| | - Dirk J. Broer
- SCNU-TUE Joint lab of Device Integrated Responsive Materials (DIRM) Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangzhou 510006 China
- Stimuli-responsive Functional Materials and Devices Department of Chemical Engineering and Chemistry Eindhoven University of Technology Den Dolech 2, 5600 MB Eindhoven The Netherlands
| | - Jiawen Chen
- SCNU-UG International Joint Laboratory of Molecular Science and Displays National Center for International Research on Green Optoelectronics South China Normal University Guangzhou 510006 China
| | - Ben L. Feringa
- SCNU-UG International Joint Laboratory of Molecular Science and Displays National Center for International Research on Green Optoelectronics South China Normal University Guangzhou 510006 China
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
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14
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Evans JD, Krause S, Feringa BL. Cooperative and synchronized rotation in motorized porous frameworks: impact on local and global transport properties of confined fluids. Faraday Discuss 2021; 225:286-300. [DOI: 10.1039/d0fd00016g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Simulations reveal the influence of rotating molecular motors and the importance of orientation and directionality for altering the transport properties of fluids. This has outlined that motors with specific rotation can generate directed diffusion.
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Affiliation(s)
- Jack D. Evans
- Department of Inorganic Chemistry
- Technische Universität Dresden
- 01062 Dresden
- Germany
| | - Simon Krause
- Centre for Systems Chemistry
- Stratingh Institute for Chemistry
- University of Groningen
- Groningen
- The Netherlands
| | - Ben L. Feringa
- Centre for Systems Chemistry
- Stratingh Institute for Chemistry
- University of Groningen
- Groningen
- The Netherlands
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15
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Krause S, Feringa BL. Towards artificial molecular factories from framework-embedded molecular machines. Nat Rev Chem 2020. [DOI: 10.1038/s41570-020-0209-9] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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16
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Kunfi A, Bernadett Vlocskó R, Keresztes Z, Mohai M, Bertóti I, Ábrahám Á, Kiss É, London G. Photoswitchable Macroscopic Solid Surfaces Based On Azobenzene-Functionalized Polydopamine/Gold Nanoparticle Composite Materials: Formation, Isomerization and Ligand Exchange. Chempluschem 2020; 85:797-805. [PMID: 31967410 DOI: 10.1002/cplu.201900674] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/07/2020] [Indexed: 12/21/2022]
Abstract
The facile preparation of dynamic interfaces is presented based on the combination of photoisomerizable azobenzenes and polydopamine (PDA)/Au nanoparticle composite materials. Azobenzenes with different spacer lengths (C3 , C6 ) and surface-binding groups (SH, NH2 ) were synthesized. The polymer layer on macroscopic quartz surface was prepared by the facile aerobic autopolymerisation of dopamine hydrochloride under basic conditions. The presence of redox-active catechol moieties meant that gold nanoparticles were formed on the polymer surface. The obtained UV-Vis spectroscopic results confirmed that following their successful assembly, the switching of azobenzenes on PDA/Au was not affected by the surface binding group and the spacer length of the azobenzene molecules under the measurement conditions. Furthermore, facilitated by the curved nature of the Au particles, the surface-bound azobenzene layer could be reconstructed by ligand-exchange processes, and the photochemical characterization of the mixed layer was performed.
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Affiliation(s)
- Attila Kunfi
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary.,Department of Organic Chemistry, University of Szeged, Dóm tér 8, 6720, Szeged, Hungary
| | - Rita Bernadett Vlocskó
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
| | - Zsófia Keresztes
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
| | - Miklós Mohai
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
| | - Imre Bertóti
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
| | - Ágnes Ábrahám
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary.,Laboratory of Interfaces and Nanostructures, Eötvös Loránd University, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
| | - Éva Kiss
- Laboratory of Interfaces and Nanostructures, Eötvös Loránd University, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
| | - Gábor London
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
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17
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Ariga K, Nishikawa M, Mori T, Takeya J, Shrestha LK, Hill JP. Self-assembly as a key player for materials nanoarchitectonics. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2019; 20:51-95. [PMID: 30787960 PMCID: PMC6374972 DOI: 10.1080/14686996.2018.1553108] [Citation(s) in RCA: 215] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/23/2018] [Accepted: 11/25/2018] [Indexed: 05/07/2023]
Abstract
The development of science and technology of advanced materials using nanoscale units can be conducted by a novel concept involving combination of nanotechnology methodology with various research disciplines, especially supramolecular chemistry. The novel concept is called 'nanoarchitectonics' where self-assembly processes are crucial in many cases involving a wide range of component materials. This review of self-assembly processes re-examines recent progress in materials nanoarchitectonics. It is composed of three main sections: (1) the first short section describes typical examples of self-assembly research to outline the matters discussed in this review; (2) the second section summarizes self-assemblies at interfaces from general viewpoints; and (3) the final section is focused on self-assembly processes at interfaces. The examples presented demonstrate the strikingly wide range of possibilities and future potential of self-assembly processes and their important contribution to materials nanoarchitectonics. The research examples described in this review cover variously structured objects including molecular machines, molecular receptors, molecular pliers, molecular rotors, nanoparticles, nanosheets, nanotubes, nanowires, nanoflakes, nanocubes, nanodisks, nanoring, block copolymers, hyperbranched polymers, supramolecular polymers, supramolecular gels, liquid crystals, Langmuir monolayers, Langmuir-Blodgett films, self-assembled monolayers, thin films, layer-by-layer structures, breath figure motif structures, two-dimensional molecular patterns, fullerene crystals, metal-organic frameworks, coordination polymers, coordination capsules, porous carbon spheres, mesoporous materials, polynuclear catalysts, DNA origamis, transmembrane channels, peptide conjugates, and vesicles, as well as functional materials for sensing, surface-enhanced Raman spectroscopy, photovoltaics, charge transport, excitation energy transfer, light-harvesting, photocatalysts, field effect transistors, logic gates, organic semiconductors, thin-film-based devices, drug delivery, cell culture, supramolecular differentiation, molecular recognition, molecular tuning, and hand-operating (hand-operated) nanotechnology.
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Affiliation(s)
- Katsuhiko Ariga
- WPI-MANA, National Institute for Materials Science (NIMS), Ibaraki, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan
| | | | - Taizo Mori
- WPI-MANA, National Institute for Materials Science (NIMS), Ibaraki, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan
| | - Jun Takeya
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan
| | - Lok Kumar Shrestha
- WPI-MANA, National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - Jonathan P. Hill
- WPI-MANA, National Institute for Materials Science (NIMS), Ibaraki, Japan
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18
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Das A, Pinheiro M, Machado FBC, Aquino AJA, Lischka H. Tuning the Biradicaloid Nature of Polycyclic Aromatic Hydrocarbons: The Effect of Graphitic Nitrogen Doping in Zethrenes. Chemphyschem 2018; 19:2492-2499. [PMID: 30070740 DOI: 10.1002/cphc.201800650] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Indexed: 11/07/2022]
Abstract
Zethrenes are interesting polycyclic aromatic hydrocarbons (PAHs), which possess unique optoelectronic and magnetic properties because of their singlet open-shell biradicaloid character, making them promising candidates for application in organic electronics. Tuning their properties is a key task in order to develop efficient compounds for practical use by balancing the desired biradicaloid character against its chemical instability. In this work, high-level theoretical multireference methods appropriate for the correct description of polyradicaloid systems are used to develop rules for doping of zethrenes by means of nitrogen taking heptazethrene (HZ) as a benchmark example. The results of the quantum chemical calculations have been concentrated on a series of quantitative descriptors such as unpaired densities and singlet-triplet (S-T) splittings. They clearly indicate different regions in the HZ where N-doping can either lead to strong enhancement of the biradicaloid character or to strong quenching towards a closed shell state. A wide scale of varying open-shell character is accessible from the different doping positions. It is shown that the S-T splittings correlate well with the total number of unpaired electrons in the medium range of biradicaloid character. For pronounced biradical character the S-T splitting decays to about zero with a margin of ±0.15 eV. In the opposite closed-shell limit, much larger S-T splittings of up to 3 eV are computed.
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Affiliation(s)
- Anita Das
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Max Pinheiro
- Departamento de Química, Instituto Tecnológico de Aeronáutica, São José dos Campos, 12228-900, São Paulo, Brazil
| | - Francisco B C Machado
- Departamento de Química, Instituto Tecnológico de Aeronáutica, São José dos Campos, 12228-900, São Paulo, Brazil
| | - Adélia J A Aquino
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, P. R. China.,Institute for Soil Research, University of Natural Resources and Life Sciences Vienna, Peter-Jordan-Strasse 82, A-, 1190, Vienna, Austria
| | - Hans Lischka
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, P. R. China.,Institute for Theoretical Chemistry, University of Vienna, A-, 1090, Vienna, Austria
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19
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Schröder HV, Schalley CA. Tetrathiafulvalene - a redox-switchable building block to control motion in mechanically interlocked molecules. Beilstein J Org Chem 2018; 14:2163-2185. [PMID: 30202469 PMCID: PMC6122308 DOI: 10.3762/bjoc.14.190] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 08/01/2018] [Indexed: 11/23/2022] Open
Abstract
With the rise of artificial molecular machines, control of motion on the nanoscale has become a major contemporary research challenge. Tetrathiafulvalenes (TTFs) are one of the most versatile and widely used molecular redox switches to generate and control molecular motion. TTF can easily be implemented as functional unit into molecular and supramolecular structures and can be reversibly oxidized to a stable radical cation or dication. For over 20 years, TTFs have been key building blocks for the construction of redox-switchable mechanically interlocked molecules (MIMs) and their electrochemical operation has been thoroughly investigated. In this review, we provide an introduction into the field of TTF-based MIMs and their applications. A brief historical overview and a selection of important examples from the past until now are given. Furthermore, we will highlight our latest research on TTF-based rotaxanes.
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Affiliation(s)
- Hendrik V Schröder
- Institut für Chemie und Biochemie, Organische Chemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Christoph A Schalley
- Institut für Chemie und Biochemie, Organische Chemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
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20
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Watahiki Y, Nomoto T, Chiari L, Toyota T, Fujinami M. Experimental Investigation of the Self-Propelled Motion of a Sodium Oleate Tablet and Boat at an Oil-Water Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:5487-5494. [PMID: 29693399 DOI: 10.1021/acs.langmuir.8b01090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The self-propelled behaviors of macroscopic inanimate objects at surfaces and interfaces are ubiquitous phenomena of fundamental interest in interface science. However, given the existence of a large variety of systems with their own inherent chemical properties, the kinematics of the self-propelled motion and the dynamics of the forces driving these systems often remain largely unknown. Here, we experimentally investigate the spontaneous motion of a sodium oleate tablet at a water-nitrobenzene interface, under nonequilibrium and global isothermal conditions, through measurements of the interfacial tension with the noninvasive, quasi-elastic laser scattering method. The sodium oleate tablet was self-propelled due to an imbalance in the interfacial tension induced by the inhomogeneous adsorption of oleate/oleic acid molecules. The kinetics of the self-propelled motion of a boat-shaped plastic sheet bearing sodium oleate tablets at a sodium oleate aqueous solution-nitrobenzene interface was also studied. The interfacial tension difference between the front and rear of the boat was quantitatively identified as the force pushing the boat forward, although the Marangoni flow due to the uneven distribution of the interfacial tension behind the boat tended to decelerate the motion.
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Affiliation(s)
- Yasuhito Watahiki
- Department of Applied Chemistry and Biotechnology , Chiba University , 1-33 Yayoi , Inage, Chiba 263-8522 , Japan
| | - Tomonori Nomoto
- Department of Applied Chemistry and Biotechnology , Chiba University , 1-33 Yayoi , Inage, Chiba 263-8522 , Japan
| | - Luca Chiari
- Department of Applied Chemistry and Biotechnology , Chiba University , 1-33 Yayoi , Inage, Chiba 263-8522 , Japan
| | - Taro Toyota
- Department of Basic Science , The University of Tokyo , 3-8-1 Komaba , Meguro, Tokyo 153-8902 , Japan
| | - Masanori Fujinami
- Department of Applied Chemistry and Biotechnology , Chiba University , 1-33 Yayoi , Inage, Chiba 263-8522 , Japan
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21
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Chen J, Vachon J, Feringa BL. Design, Synthesis, and Isomerization Studies of Light-Driven Molecular Motors for Single Molecular Imaging. J Org Chem 2018; 83:6025-6034. [PMID: 29741383 PMCID: PMC5987184 DOI: 10.1021/acs.joc.8b00654] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
![]()
The
design of a multicomponent system that aims at the direct visualization
of a synthetic rotary motor at the single molecule level on surfaces
is presented. The synthesis of two functional motors enabling photochemical
rotation and fluorescent detection is described. The light-driven
molecular motor is found to operate in the presence of a fluorescent
tag if a rigid long rod (32 Å) is installed between both photoactive
moieties. The photochemical isomerization and subsequent thermal helix
inversion steps are confirmed by 1H NMR and UV–vis
absorption spectroscopies. In addition, the tetra-acid functioned
motor can be successfully grafted onto amine-coated quartz and it
is shown that the light responsive rotary motion on surfaces is preserved.
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Affiliation(s)
- Jiawen Chen
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747AG Groningen , The Netherlands
| | - Jérôme Vachon
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747AG Groningen , The Netherlands
| | - Ben L Feringa
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747AG Groningen , The Netherlands
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22
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Maity A, Sinha D, Rajak KK. Experimental and theoretical studies of structural and photophysical properties of a novel heteroleptic cyclometalated iridium(III) complex with 8-hydroxyquinoline-phenylazo ligand. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Amabilino DB, Tait SL. Complex molecular surfaces and interfaces: concluding remarks. Faraday Discuss 2017; 204:487-502. [PMID: 29028066 DOI: 10.1039/c7fd90075a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper is derived from our concluding remarks presentation and the ensuing conversations at the Faraday Discussions meeting on Complex Molecular Surfaces and Interfaces, Sheffield, UK, 24th-26th July 2017. This meeting was comprised of sessions on understanding the interaction of molecules with surfaces and their subsequent organisation, reactivity or properties from both experimental and theoretical perspectives. This paper attempts to put these presentations in the wider context and focuses on topics that were debated during the meeting and where we feel that opportunities lie for the future development of this interdisciplinary research area.
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Affiliation(s)
- David B Amabilino
- School of Chemistry, The University of Nottingham, NG7 2RD Nottingham, UK.
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24
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Kaleta J, Chen J, Bastien G, Dračínský M, Mašát M, Rogers CT, Feringa BL, Michl J. Surface Inclusion of Unidirectional Molecular Motors in Hexagonal Tris(o-phenylene)cyclotriphosphazene. J Am Chem Soc 2017; 139:10486-10498. [DOI: 10.1021/jacs.7b05404] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jiří Kaleta
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic
| | - Jiawen Chen
- Department
of Organic and Molecular Inorganic Chemistry, Stratingh Institute, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Guillaume Bastien
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic
| | - Milan Mašát
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic
| | - Charles T. Rogers
- Department
of Physics, University of Colorado, Boulder, Colorado 80309, United States
| | - Ben L. Feringa
- Department
of Organic and Molecular Inorganic Chemistry, Stratingh Institute, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Josef Michl
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
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25
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Ohta E, Uehara H, Han Y, Wada K, Noguchi H, Katoono R, Ishigaki Y, Ikeda H, Uosaki K, Suzuki T. Organic Molecular Layer with High Electrochemical Bistability: Synthesis, Structure, and Properties of a Dynamic Redox System with Lipoate Units for Binding to Au(111). Chempluschem 2017; 82:1043-1047. [PMID: 31961615 DOI: 10.1002/cplu.201600649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 01/27/2017] [Indexed: 11/11/2022]
Abstract
Biphenyl-2,2'-diylbis(10-methyl-9-methyleneacridan)-type electron donor 1, which has two tethered cyclic disulfide units at the 6,6'-positions, was designed and synthesized as the first member of a dynamic redox (dyrex) system that can form molecular layers on a Au(111) electrode. Upon the two-electron (2 e) oxidation of 1, the persistent dicationic dye 22+ was generated with the formation of a new C-C bond, which is reversibly cleaved upon 2 e reduction to regenerate 1 (dyrex behavior). Similar dyrex interconversion occurs in the molecular layer of 1 on gold. The chemical identities of 1/Au and electrochemically generated 22+ /Au were unambiguously determined by in situ IR spectroscopy in the attenuated total reflection mode. In situ scanning tunneling microscopy (STM) was conducted under electrochemical conditions to examine the surface structure of 1 adsorbed on a Au(111) electrode. Although no long-range-ordered morphology was found in the STM image of 1, an in situ STM study of the potential-induced dyrex reaction of 1 to 22+ showed that the grained spots in the image became slightly brighter.
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Affiliation(s)
- Eisuke Ohta
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.,Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Sakai, 599-8531, Japan
| | - Hiromitsu Uehara
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.,Research Development Section, Hokkaido University, Sapporo, 001-0021, Japan
| | - Ying Han
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Kazuhisa Wada
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.,National Institute for Materials Science (NIMS), International Center for Materials Nanoarchtectonics (MANA), Tsukuba, 305-0044, Japan
| | - Hidenori Noguchi
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.,National Institute for Materials Science (NIMS), International Center for Materials Nanoarchtectonics (MANA), Tsukuba, 305-0044, Japan.,NIMS, Global Research Center for Environment and Energy based on Nanornaterials (GREEN), Tsukuba, 305-0044, Japan
| | - Ryo Katoono
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Yusuke Ishigaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Hiroshi Ikeda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Sakai, 599-8531, Japan
| | - Kohei Uosaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.,National Institute for Materials Science (NIMS), International Center for Materials Nanoarchtectonics (MANA), Tsukuba, 305-0044, Japan.,NIMS, Global Research Center for Environment and Energy based on Nanornaterials (GREEN), Tsukuba, 305-0044, Japan
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
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26
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Da Silva Rodrigues R, Mullen KM. Surface-Assembled Mechanically Interlocked Architectures. Chempluschem 2017; 82:814-825. [PMID: 31961569 DOI: 10.1002/cplu.201700065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/09/2017] [Indexed: 01/30/2023]
Abstract
Since the advent of supramolecular chemistry, there has been keen interest in the synthesis of interlocked molecules, given their unique potential to act as receptors, molecular machines and even motors. Despite advances in the complexity of molecular machines that can be synthesised and operated in solution, reports of the operation or even attachment of complex supramolecular systems on solid surfaces are less common. Synthetic challenges and a lack of adequate characterisation techniques to monitor the thermodynamic and kinetic influences governing assembly at the solution-surface interface has slowed progress in this area of research. This Review looks at the developments in the field of covalently assembled interlocked architectures on gold, silica and polymer surfaces, highlighting the differences observed between solution and surface assembly of these unique structures.
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Affiliation(s)
- Rafael Da Silva Rodrigues
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, QLD, 4001, Australia
| | - Kathleen M Mullen
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, QLD, 4001, Australia
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27
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Yu L, Sun J, Wang Q, Guan Y, Zhou L, Zhang J, Zhang L, Yang H. Reprogrammable Assembly of Molecular Motor on Solid Surfaces via Dynamic Bonds. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1700480. [PMID: 28437027 DOI: 10.1002/smll.201700480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 03/05/2017] [Indexed: 06/07/2023]
Abstract
Controllable assembly of molecular motors on solid surfaces is a fundamental issue for providing them to perform physical tasks. However, it can hardly be achieved by most previous methods due to their inherent limitations. Here, a general strategy is designed for the reprogrammable assembly of molecular motors on solid surfaces based on dynamic bonds. In this method, molecular motors with disulfide bonds can be remotely, reversibly, and precisely attached to solid surfaces with disulfide bonds, regardless of their chemical composition and microstructure. More importantly, it not only allows encoding geometric information referring to a pattern of molecular motors, but also enables erasing and re-encoding of geometric information via hemolytic photocleavage and recombination of disulfide bonds. Thus, solid surfaces can be regarded as "computer hardware", where molecular motors can be reformatted and reprogramed as geometric information.
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Affiliation(s)
- Li Yu
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Jian Sun
- Department of Materials Science and Engineering, University of Science and Technology, Beijing, 100083, China
| | - Qian Wang
- School of Chemistry and Environment, Beihang University, Beijing, 100191, China
| | - Yan Guan
- College of Chemistry and Engineering, Peking University, Beijing, 100871, China
| | - Le Zhou
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Jingxuan Zhang
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Lanying Zhang
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Huai Yang
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
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28
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Das A, Müller T, Plasser F, Krisiloff DB, Carter EA, Lischka H. Local Electron Correlation Treatment in Extended Multireference Calculations: Effect of Acceptor–Donor Substituents on the Biradical Character of the Polycyclic Aromatic Hydrocarbon Heptazethrene. J Chem Theory Comput 2017; 13:2612-2622. [DOI: 10.1021/acs.jctc.7b00156] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anita Das
- School
of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, P.R. China
- Department
of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Thomas Müller
- Institute
for Advanced Simulation, Jülich Supercomputing Centre, Forschungszentrum Jülich, Jülich 52428, Germany
| | - Felix Plasser
- Institute
for Theoretical Chemistry, University of Vienna, A-1090 Vienna, Austria
| | - David B. Krisiloff
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544-1009, United States
| | - Emily A. Carter
- School
of
Engineering and Applied Science, Princeton University, Princeton, New Jersey 08544-5263, United States
| | - Hans Lischka
- School
of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, P.R. China
- Department
of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
- Institute
for Theoretical Chemistry, University of Vienna, A-1090 Vienna, Austria
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29
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Filimonov SN, Liu W, Tkatchenko A. Molecular Seesaw: Intricate Dynamics and Versatile Chemistry of Heteroaromatics on Metal Surfaces. J Phys Chem Lett 2017; 8:1235-1240. [PMID: 28229597 DOI: 10.1021/acs.jpclett.7b00071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The design of novel elementary surface processes is important for applications in catalysis, single-molecule junctions, molecular sensors, switches, and surface-mounted molecular machines. Here we demonstrate by van der Waals inclusive density functional theory calculations that a small and relatively simple heteroaromatic compound s-triazine (C3H3N3) unexpectedly possesses five metastable states when adsorbed on the Pt(111) surface. This diversity of the adsorption states stems from an interplay between versatile molecule/surface chemical bonding and van der Waals interactions and from "softening" of the aromatic ring by nitrogen substitution, which makes folding of the aromatic ring energetically much less demanding as compared to benzene. The intricate seesaw-like surface dynamics and tunable electronic structure of s-triazine show promise for applications in molecular sensors and switches. The broad implications of our findings are demonstrated for triazine- and pyrimidine-based heteroaromatic compounds and other metal surfaces.
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Affiliation(s)
- Sergey N Filimonov
- Department of Physics, National Research Tomsk State University , 634050 Tomsk, Russia
| | - Wei Liu
- Nano Structural Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology , Nanjing, Jiangsu 210094, China
| | - Alexandre Tkatchenko
- Physics and Materials Science Research Unit, University of Luxembourg , L-1511 Luxembourg
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30
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Orlandini G, Groppi J, Secchi A, Arduini A, Kilburn JD. Electrochemical Response of the Threading/de-threading Process of Calix[6]arene-based Pseudorotaxanes Anchored on Glassy Carbon Electrodes. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2016.12.169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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31
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Abstract
Molecules provide versatile building blocks, with a vast palette of functionalities and an ability to assemble via supramolecular and covalent bonding to generate remarkably diverse macromolecular systems. This is abundantly displayed by natural systems that have evolved on Earth, which exploit both supramolecular and covalent protocols to create the machinery of life. Importantly, these molecular assemblies deliver functions that are reproducible, adaptable, finessed and responsive. There is now a real need to translate complex molecular systems to surfaces and interfaces in order to engineer 21st century nanotechnology. ‘Top-down’ and ‘bottom-up’ approaches, and utilisation of supramolecular and covalent assembly, are currently being used to create a range of molecular architectures and functionalities at surfaces. In parallel, advanced tools developed for interrogating surfaces and interfaces have been deployed to capture the complexities of molecular behaviour at interfaces from the nanoscale to the macroscale, while advances in theoretical modelling are delivering insights into the balance of interactions that determine system behaviour. A few examples are provided here that outline molecular behaviour at surfaces, and the level of complexity that is inherent in such systems.
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Affiliation(s)
- R. Raval
- Surface Science Research Centre
- Department of Chemistry
- University of Liverpool
- Liverpool
- UK
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32
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Saywell A, Bakker A, Mielke J, Kumagai T, Wolf M, García-López V, Chiang PT, Tour JM, Grill L. Light-Induced Translation of Motorized Molecules on a Surface. ACS NANO 2016; 10:10945-10952. [PMID: 27783488 DOI: 10.1021/acsnano.6b05650] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Molecular machines are a key component in the vision of molecular nanotechnology and have the potential to transport molecular species and cargo on surfaces. The motion of such machines should be triggered remotely, ultimately allowing a large number of molecules to be propelled by a single source, with light being an attractive stimulus. Here, we report upon the photoinduced translation of molecular machines across a surface by characterizing single molecules before and after illumination. Illumination of molecules containing a motor unit results in an enhancement in the diffusion of the molecules. The effect vanishes if an incompatible photon energy is used or if the motor unit is removed from the molecule, revealing that the enhanced motion is due to the presence of the wavelength-sensitive motor in each molecule.
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Affiliation(s)
- Alex Saywell
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
- School of Physics and Astronomy, The University of Nottingham , Nottingham NG7 2RD, United Kingdom
| | - Anne Bakker
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
| | - Johannes Mielke
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
| | - Takashi Kumagai
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
| | - Martin Wolf
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
| | - Víctor García-López
- Departments of Chemistry and Materials Science and NanoEngineering and the Smalley Institute for Nanoscale Science and Technology, Rice University , Houston, Texas 77005, United States
| | - Pinn-Tsong Chiang
- Departments of Chemistry and Materials Science and NanoEngineering and the Smalley Institute for Nanoscale Science and Technology, Rice University , Houston, Texas 77005, United States
| | - James M Tour
- Departments of Chemistry and Materials Science and NanoEngineering and the Smalley Institute for Nanoscale Science and Technology, Rice University , Houston, Texas 77005, United States
| | - Leonhard Grill
- Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Berlin 14195, Germany
- Department of Physical Chemistry, University of Graz , Heinrichstrasse 28, Graz 8010, Austria
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33
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Cocchi C, Moldt T, Gahl C, Weinelt M, Draxl C. Optical properties of azobenzene-functionalized self-assembled monolayers: Intermolecular coupling and many-body interactions. J Chem Phys 2016; 145:234701. [DOI: 10.1063/1.4971436] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Caterina Cocchi
- Institut für Physik and IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany
- European Theoretical Spectroscopic Facility (ETSF)
| | - Thomas Moldt
- Fachbereich Physik, Freie Universität Berlin, Berlin, Germany
| | - Cornelius Gahl
- Fachbereich Physik, Freie Universität Berlin, Berlin, Germany
| | - Martin Weinelt
- Fachbereich Physik, Freie Universität Berlin, Berlin, Germany
| | - Claudia Draxl
- Institut für Physik and IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany
- European Theoretical Spectroscopic Facility (ETSF)
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34
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Fang R, Zhang H, Yang L, Wang H, Tian Y, Zhang X, Jiang L. Supramolecular Self-Assembly Induced Adjustable Multiple Gating States of Nanofluidic Diodes. J Am Chem Soc 2016; 138:16372-16379. [DOI: 10.1021/jacs.6b09601] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ruochen Fang
- Key
Lab of Organic Optoelectronics and Molecular Engineering, Department
of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Huacheng Zhang
- Department
of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Liulin Yang
- Key
Lab of Organic Optoelectronics and Molecular Engineering, Department
of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Huanting Wang
- Department
of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Ye Tian
- Beijing National
Laboratory for Molecular Sciences, Key Laboratory
of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Xi Zhang
- Key
Lab of Organic Optoelectronics and Molecular Engineering, Department
of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Lei Jiang
- Key Laboratory of Bio-inspired Materials and Interfacial
Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- Department
of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
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35
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Schwarz FB, Heinrich T, Kaufmann JO, Lippitz A, Puttreddy R, Rissanen K, Unger WES, Schalley CA. Photocontrolled On-Surface Pseudorotaxane Formation with Well-Ordered Macrocycle Multilayers. Chemistry 2016; 22:14383-9. [PMID: 27539781 DOI: 10.1002/chem.201603156] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Indexed: 11/12/2022]
Abstract
The photoinduced pseudorotaxane formation between a photoresponsive axle and a tetralactam macrocycle was investigated in solution and on glass surfaces with immobilized multilayers of macrocycles. In the course of this reaction, a novel photoswitchable binding station with azobenzene as the photoswitchable unit and diketopiperazine as the binding station was synthesized and studied by NMR and UV/Vis spectroscopy. Glass surfaces have been functionalized with pyridine-terminated SAMs and subsequently with multilayers of macrocycles through layer-by-layer self assembly. A preferred orientation of the macrocycles could be confirmed by NEXAFS spectroscopy. The photocontrolled deposition of the axle into the surface-bound macrocycle-multilayers was monitored by UV/Vis spectroscopy and led to an increase of the molecular order, as indicated by more substantial linear dichroism effects in angle-resolved NEXAFS spectra.
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Affiliation(s)
- Felix B Schwarz
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Thomas Heinrich
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany.,BAM-Federal Institute for Materials Research and Testing, Unter den Eichen 44-46, 12203, Berlin, Germany
| | - J Ole Kaufmann
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Andreas Lippitz
- BAM-Federal Institute for Materials Research and Testing, Unter den Eichen 44-46, 12203, Berlin, Germany
| | - Rakesh Puttreddy
- University of Jyvaskyla, Department of Chemistry, Nanoscience Center, P.O. Box. 35, 40014, Jyvaskyla, Finland
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, Nanoscience Center, P.O. Box. 35, 40014, Jyvaskyla, Finland
| | - Wolfgang E S Unger
- BAM-Federal Institute for Materials Research and Testing, Unter den Eichen 44-46, 12203, Berlin, Germany.
| | - Christoph A Schalley
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany.
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36
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Lloyd JA, Papageorgiou AC, Fischer S, Oh SC, Saǧlam Ö, Diller K, Duncan DA, Allegretti F, Klappenberger F, Stöhr M, Maurer RJ, Reuter K, Reichert J, Barth JV. Dynamics of Spatially Confined Bisphenol A Trimers in a Unimolecular Network on Ag(111). NANO LETTERS 2016; 16:1884-1889. [PMID: 26849384 DOI: 10.1021/acs.nanolett.5b05026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bisphenol A (BPA) aggregates on Ag(111) shows a polymorphism between two supramolecular motifs leading to formation of distinct networks depending on thermal energy. With rising temperature a dimeric pairing scheme reversibly converts into a trimeric motif, which forms a hexagonal superstructure with complex dynamic characteristics. The trimeric arrangements notably organize spontaneously into a self-assembled one-component array with supramolecular BPA rotors embedded in a two-dimensional stator sublattice. By varying the temperature, the speed of the rotors can be controlled as monitored by direct visualization. A combination of scanning tunneling microscopy and dispersion-corrected density-functional tight-binding (DFTB-vdW(surf)) based molecular modeling reveals the exact atomistic position of each molecule within the assembly as well as the driving force for the formation of the supramolecular rotors.
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Affiliation(s)
- Julian A Lloyd
- Physik-Department E20, Technische Universität München , D-85748 Garching, Germany
| | | | - Sybille Fischer
- Physik-Department E20, Technische Universität München , D-85748 Garching, Germany
| | - Seung Cheol Oh
- Physik-Department E20, Technische Universität München , D-85748 Garching, Germany
| | - Özge Saǧlam
- Physik-Department E20, Technische Universität München , D-85748 Garching, Germany
| | - Katharina Diller
- Physik-Department E20, Technische Universität München , D-85748 Garching, Germany
- Theoretische Chemie, Technische Universität München , D-85748 Garching, Germany
| | - David A Duncan
- Physik-Department E20, Technische Universität München , D-85748 Garching, Germany
| | - Francesco Allegretti
- Physik-Department E20, Technische Universität München , D-85748 Garching, Germany
| | | | - Martin Stöhr
- Theoretische Chemie, Technische Universität München , D-85748 Garching, Germany
| | - Reinhard J Maurer
- Theoretische Chemie, Technische Universität München , D-85748 Garching, Germany
| | - Karsten Reuter
- Theoretische Chemie, Technische Universität München , D-85748 Garching, Germany
| | - Joachim Reichert
- Physik-Department E20, Technische Universität München , D-85748 Garching, Germany
| | - Johannes V Barth
- Physik-Department E20, Technische Universität München , D-85748 Garching, Germany
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37
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Das A, Müller T, Plasser F, Lischka H. Polyradical Character of Triangular Non-Kekulé Structures, Zethrenes, p-Quinodimethane-Linked Bisphenalenyl, and the Clar Goblet in Comparison: An Extended Multireference Study. J Phys Chem A 2016; 120:1625-36. [PMID: 26859789 PMCID: PMC4789636 DOI: 10.1021/acs.jpca.5b12393] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
In
this work, two different classes of polyaromatic hydrocarbon
(PAH) systems have been investigated in order to characterize the
amount of polyradical character and to localize the specific regions
of chemical reactivity: (a) the non-Kekulé triangular structures
phenalenyl, triangulene and a π-extended triangulene system
with high-spin ground state and (b) PAHs based on zethrenes, p-quinodimethane-linked bisphenalenyl, and the Clar goblet
containing varying polyradical character in their singlet ground state.
The first class of structures already have open-shell character because
of their high-spin ground state, which follows from the bonding pattern,
whereas for the second class the open-shell character is generated
either because of the competition between the closed-shell quinoid
Kekulé and the open-shell singlet biradical resonance structures
or the topology of the π-electron arrangement of the non-Kekulé
form. High-level ab initio calculations based on multireference theory
have been carried out to compute singlet–triplet splitting
for the above-listed compounds and to provide insight into their chemical
reactivity based on the polyradical character by means of unpaired
densities. Unrestricted density functional theory and Hartree–Fock
calculations have been performed for comparison also in order to obtain
better insight into their applicability to these types of complicated
radical systems.
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Affiliation(s)
- Anita Das
- Department of Chemistry and Biochemistry, Texas Tech University , Lubbock 79409, Texas United States
| | - Thomas Müller
- Institute for Advanced Simulation, Jülich Supercomputing Centre, Forschungszentrum Jülich , 52425 Jülich, Germany
| | - Felix Plasser
- Institute for Theoretical Chemistry, University of Vienna , A-1090 Vienna, Austria
| | - Hans Lischka
- Department of Chemistry and Biochemistry, Texas Tech University , Lubbock 79409, Texas United States.,Institute for Theoretical Chemistry, University of Vienna , A-1090 Vienna, Austria.,School of Pharmaceutical Sciences and Technology, Tianjin University , Tianjin, 300072 P.R. China
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38
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Zhang Q, Qu DH. Artificial Molecular Machine Immobilized Surfaces: A New Platform To Construct Functional Materials. Chemphyschem 2016; 17:1759-68. [DOI: 10.1002/cphc.201501048] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Qi Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 130 Meilong Road Shanghai China
| | - Da-Hui Qu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 130 Meilong Road Shanghai China
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39
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Biswas TK, Sarkar SM, Yusoff MM, Rahman ML. Synthesis and characterization of azobenzene-based gold nanoparticles for photo-switching properties. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.12.078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Schwarz FB, Heinrich T, Lippitz A, Unger WES, Schalley CA. A photoswitchable rotaxane operating in monolayers on solid support. Chem Commun (Camb) 2016; 52:14458-14461. [DOI: 10.1039/c6cc08586e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel photoswitchable rotaxane was synthesised and its switching behaviour in solution and on solid support was studied.
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Affiliation(s)
- Felix B. Schwarz
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Thomas Heinrich
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
- BAM – Federal Institute for Materials Research and Testing
| | - Andreas Lippitz
- BAM – Federal Institute for Materials Research and Testing
- 12203 Berlin
- Germany
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41
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Abstract
Complexation-to-deaggregation effect of cyclodextrin was applied to achieve ordered functional monolayers on a gold surface.
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Affiliation(s)
- Ruyi Sun
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Liangliang Zhu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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42
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Scottwell SØ, Crowley JD. Ferrocene-containing non-interlocked molecular machines. Chem Commun (Camb) 2016; 52:2451-64. [DOI: 10.1039/c5cc09569g] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ferrocene is chemically robust and readily functionalized which enables its facile incorporation into more complex molecular systems. This coupled with ferrocene's reversible redox properties and ability to function as a “molecular ball bearing” has led to the use of ferrocene as a component in wide range of non-interlocked synthetic molecular machine systems.
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43
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Cao ZQ, Luan ZL, Zhang Q, Gu RR, Ren J, Qu DH. An acid/base responsive side-chain polyrotaxane system with a fluorescent signal. Polym Chem 2016. [DOI: 10.1039/c5py01944c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A side-chain polyrotaxane system can generate a remarkable fluorescent signal change in response to acid/base stimuli.
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Affiliation(s)
- Zhan-Qi Cao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Zhou-Lin Luan
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Qi Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Rui-Rui Gu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Jun Ren
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- Ministry of Education & College of Chemistry & Chemical Engineering
- Hubei University
- Wuhan 430062
- P. R. China
| | - Da-Hui Qu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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44
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Abstract
This tutorial review charts the development of man-made molecular machines; from solution-phase to transmembrane assemblies.
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Affiliation(s)
- Matthew A. Watson
- EaStCHEM School of Chemistry
- University of Edinburgh
- Joseph Black Building
- Edinburgh
- UK
| | - Scott L. Cockroft
- EaStCHEM School of Chemistry
- University of Edinburgh
- Joseph Black Building
- Edinburgh
- UK
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45
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Konyukhov SS, Kupchenko IV, Moskovsky AA, Nemukhin AV, Akimov AV, Kolomeisky AB. Rigid-Body Molecular Dynamics of Fullerene-Based Nanocars on Metallic Surfaces. J Chem Theory Comput 2015; 6:2581-90. [PMID: 26616062 DOI: 10.1021/ct100101y] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Methodical problems of coarse-grained-type molecular dynamics, namely, rigid-body molecular dynamics (RB MD), are studied by investigating the dynamics of nanosized molecular vehicles called nanocars that move on gold and silver surfaces. Specifically, we analyzed the role of thermostats and the effects of temperature, couplings, and correlations between rigid fragments of the nanocar molecule in extensive RB MD simulations. It is found that the use of the Nosé-Poincaré thermostat does not introduce systematic errors, but the time trajectories might be required to be limited to not accumulate large numerical integration errors. Correlations in the motion of different fragments of the molecules are also analyzed. Our theoretical computations also point to the importance of temperature, interfragment interactions, and interactions with surfaces and to the nature of the surface for understanding mechanisms of motion of single-molecule transporters.
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Affiliation(s)
- Sergei S Konyukhov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119991, and N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow 119994, Russian Federation, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - Ilya V Kupchenko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119991, and N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow 119994, Russian Federation, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - Alexander A Moskovsky
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119991, and N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow 119994, Russian Federation, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - Alexander V Nemukhin
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119991, and N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow 119994, Russian Federation, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - Alexey V Akimov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119991, and N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow 119994, Russian Federation, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - Anatoly B Kolomeisky
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119991, and N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow 119994, Russian Federation, and Department of Chemistry, Rice University, Houston, Texas 77005
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46
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Zhang Q, Qu D, Wang Q, Tian H. Dual‐Mode Controlled Self‐Assembly of TiO
2
Nanoparticles Through a Cucurbit[8]uril‐Enhanced Radical Cation Dimerization Interaction. Angew Chem Int Ed Engl 2015; 54:15789-93. [DOI: 10.1002/anie.201509071] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 10/15/2015] [Indexed: 12/28/2022]
Affiliation(s)
- Qi Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237 (China)
| | - Da‐Hui Qu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237 (China)
| | - Qiao‐Chun Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237 (China)
| | - He Tian
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237 (China)
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47
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Zhang Q, Qu D, Wang Q, Tian H. Dual‐Mode Controlled Self‐Assembly of TiO
2
Nanoparticles Through a Cucurbit[8]uril‐Enhanced Radical Cation Dimerization Interaction. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509071] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Qi Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237 (China)
| | - Da‐Hui Qu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237 (China)
| | - Qiao‐Chun Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237 (China)
| | - He Tian
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237 (China)
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48
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Marchante E, Crivillers N, Buhl M, Veciana J, Mas-Torrent M. An Electrically Driven and Readable Molecular Monolayer Switch Based on a Solid Electrolyte. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508449] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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49
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Marchante E, Crivillers N, Buhl M, Veciana J, Mas-Torrent M. An Electrically Driven and Readable Molecular Monolayer Switch Based on a Solid Electrolyte. Angew Chem Int Ed Engl 2015; 55:368-72. [DOI: 10.1002/anie.201508449] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 11/11/2022]
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50
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Affiliation(s)
- Sundus Erbas-Cakmak
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - David A. Leigh
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Charlie T. McTernan
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Alina
L. Nussbaumer
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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