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Rinkovec T, Kalebic D, Dehaen W, Whitelam S, Harvey JN, De Feyter S. On the origin of cooperativity effects in the formation of self-assembled molecular networks at the liquid/solid interface. Chem Sci 2024; 15:6076-6087. [PMID: 38665531 PMCID: PMC11041291 DOI: 10.1039/d4sc00284a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/12/2024] [Indexed: 04/28/2024] Open
Abstract
In this work we investigate the behaviour of molecules at the nanoscale using scanning tunnelling microscopy in order to explore the origin of the cooperativity in the formation of self-assembled molecular networks (SAMNs) at the liquid/solid interface. By studying concentration dependence of alkoxylated dimethylbenzene, a molecular analogue to 5-alkoxylated isophthalic derivatives, but without hydrogen bonding moieties, we show that the cooperativity effect can be experimentally evaluated even for low-interacting systems and that the cooperativity in SAMN formation is its fundamental trait. We conclude that cooperativity must be a local effect and use the nearest-neighbor Ising model to reproduce the coverage vs. concentration curves. The Ising model offers a direct link between statistical thermodynamics and experimental parameters, making it a valuable tool for assessing the thermodynamics of SAMN formation.
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Affiliation(s)
- Tamara Rinkovec
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Demian Kalebic
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Wim Dehaen
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Stephen Whitelam
- Molecular Foundry, Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA
| | - Jeremy N Harvey
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Steven De Feyter
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
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2
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Preetha Genesh N, Cui D, Dettmann D, MacLean O, Johal TK, Lunchev AV, Grimsdale AC, Rosei F. Selective Self-Assembly and Modification of Herringbone Reconstructions at a Solid-Liquid Interface of Au(111). J Phys Chem Lett 2023; 14:3057-3062. [PMID: 36946688 DOI: 10.1021/acs.jpclett.3c00222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The precise control of molecular self-assembly on surfaces presents many opportunities for the creation of complex nanostructures. Within this endeavor, selective patterning by exploiting molecular interactions at the solid-liquid interface would be a beneficial capability. Using scanning tunneling microscopy at the 1,2,4-trichlorobenzene/Au(111) interface, we observed selective self-assembly of 1,3,5-tris(4-methoxyphenyl)benzene (TMPB) molecules in the face-centered cubic (FCC) regions of Au(111). Density functional theory calculations suggest higher adsorption energy of TMPB molecules at FCC regions, explaining the preference for self-assembly. The molecular coverage is found to increase with the concentration of the applied solution, eventually yielding a full monolayer. Moreover, the adsorption of TMPB molecules induces a concentration-dependent lifting of the herringbone reconstruction, observed as an increase in the area of the FCC regions at higher concentrations. Our results represent a simple and cost-effective selective nanoscale patterning method on Au(111), providing a possible avenue to guide the co-adsorption of other functional molecules.
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Affiliation(s)
- Navathej Preetha Genesh
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1P7, Canada
| | - Daling Cui
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1P7, Canada
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Québec H3A 0B8, Canada
| | - Dominik Dettmann
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1P7, Canada
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via Fosso del Cavaliere 100, 00133 Roma, Italy
| | - Oliver MacLean
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1P7, Canada
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, Jilin 130103, People's Republic of China
| | - Tarnjit Kaur Johal
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1P7, Canada
| | - Andrey V Lunchev
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Andrew C Grimsdale
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Federico Rosei
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1P7, Canada
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3
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Xie R, Zeng X, Jiang ZH, Hu Y, Lee SL. STM Study of the Self-Assembly of Biphenyl-3,3',5,5'-Tetracarboxylic Acid and Its Mixing Behavior with Coronene at the Liquid-Solid Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3637-3644. [PMID: 36867761 DOI: 10.1021/acs.langmuir.2c03199] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
We report a scanning tunneling microscopy (STM) study of the molecular self-assembly of biphenyl-3,3',5,5'-tetracarboxylic acid (BPTC) at the octanoic acid/graphite interface. STM revealed that the BPTC molecules generated stable bilayers and monolayers under high and low sample concentrations, respectively. Besides hydrogen bonds, the bilayers were stabilized by molecular π-stacking, whereas the monolayers were maintained by solvent co-adsorption. A thermodynamically stable Kagomé structure was obtained upon mixing BPTC with coronene (COR), while kinetic trapping of COR in the co-crystal structure was found by the subsequent deposition of COR onto a preformed BPTC bilayer on the surface. Force field calculation was conducted to compare the binding energies of different phases, which helped to provide plausible explanations for the structural stability formed via kinetic and thermodynamic pathways.
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Affiliation(s)
- Rongbin Xie
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Xingming Zeng
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Zhi-Heng Jiang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Yi Hu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Shern-Long Lee
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
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4
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Zhang S, Li J, Gan L, Ma L, Ma W, Zhang M, Cheng F, Deng K, Zeng Q. The self-assembly of a pair of low-symmetry tetracarboxylic acid molecules and their co-assembly with bridging molecules at the liquid-solid interface. NANOSCALE 2023; 15:4353-4360. [PMID: 36752732 DOI: 10.1039/d2nr06740d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The supramolecular self-assembly behavior of a pair of low-symmetry tetracarboxylic acid molecules (H4OBDB and H4ADDI) and their co-assembly behavior with TMA as a bridging molecule were studied at the liquid-solid interface. Scanning tunneling microscope (STM) observations revealed that H4OBDB and H4ADDI molecules both tend to form O-shaped dimers but end up forming different types of self-assembly structures. We also investigated the construction of two-component co-assembly structures by mixing H4OBDB or H4ADDI molecules with bridging molecules such as TMA. The two formed co-assembly structures are similar. Based on the analysis of the STM results and the density functional theory (DFT) calculations, the formation mechanism of the assembled structures was revealed.
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Affiliation(s)
- Siqi Zhang
- Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Jianqiao Li
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Linlin Gan
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Lin Ma
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Wei Ma
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Min Zhang
- Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Faliang Cheng
- Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Ke Deng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Qingdao Zeng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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5
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Fang Y, Ivasenko O, Sanz-Matias A, Mali KS, Tahara K, Tobe Y, De Feyter S. Spontaneous and scanning-assisted desorption-adsorption dynamics in porous supramolecular networks at the solution-solid interface. NANOSCALE 2023; 15:4301-4308. [PMID: 36756798 DOI: 10.1039/d2nr06400f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Self-assembled molecular networks (SAMNs) are formed by the spontaneous assembly of molecules on surfaces. On conductive atomically flat surfaces, and also at the liquid-solid interface, scanning tunneling microscopy (STM) can follow their growth dynamics. Desorption and adsorption dynamics are difficult to probe through the liquid-solid interface. Porous molecular networks are of particular interest because they may act as platforms for sensing and host-guest chemistry. Very little is known though about their stability, particularly in a liquid environment. To this end, we have investigated the desorption/adsorption dynamics of supramolecular porous monolayers of alkoxylated dehydrobenzo[12]annulene (DBA) derivatives at the interface between highly oriented pyrolytic graphite, the substrate, and 1-phenyloctane, the liquid. To trace the dynamics, structurally analogous chiral DBA derivatives were used as marker molecules, which co-assemble with the achiral ones forming the supramolecular network. This approach reveals the time scales of the adsorption/desorption dynamics, the significance of temperature, and the important role of the STM tip in inducing dynamics.
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Affiliation(s)
- Yuan Fang
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
- Institute of Functional Nano & Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, Jiangsu, PR China.
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, Jiangsu, PR China
| | - Oleksandr Ivasenko
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
- Institute of Functional Nano & Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, Jiangsu, PR China.
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, PR China
| | - Ana Sanz-Matias
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Kunal S Mali
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
| | - Kazukuni Tahara
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Yoshito Tobe
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 30030, Taiwan
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Ibaraki, Osaka 567-0047, Japan.
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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6
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Sahare S, Ghoderao P, Chan Y, Lee SL. Surface supramolecular assemblies tailored by chemical/physical and synergistic stimuli: a scanning tunneling microscopy study. NANOSCALE 2023; 15:1981-2002. [PMID: 36515142 DOI: 10.1039/d2nr05264d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Supramolecular self-assemblies formed by various non-covalent interactions can produce diverse functional networks on solid surfaces. These networks have recently attracted much interest from both fundamental and application points of view. Unlike covalent organic frameworks (COFs), the properties of the assemblies differ from each other depending on the constituent motifs. These various motifs may find diverse applications such as in crystal engineering, surface modification, and molecular electronics. Significantly, these interactions between/among the molecular tectonics are relatively weak and reversible, which makes them responsive to external stimuli. Moreover, for a liquid-solid-interface environment, the dynamic processes are amenable to in situ observation using scanning tunneling microscopy (STM). In the literature, most review articles focus on supramolecular self-assembly interactions. This review summarizes the recent literature in which stimulation sources, including chemical, physical, and their combined stimuli, cooperatively tailor supramolecular assemblies on surfaces. The appropriate design and synthesis of functional molecules that can be integrated on different surfaces permits the use of nanostructured materials and devices for bottom-up nanotechnology. Finally, we discuss synergic effect on materials science.
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Affiliation(s)
- Sanjay Sahare
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China.
- Faculty of Physics, Adam Mickiewicz University, Poznań, 61-614, Poland
| | - Prachi Ghoderao
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China.
| | - Yue Chan
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China.
| | - Shern-Long Lee
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China.
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7
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Zhang S, Chen C, Li J, Ma C, Li X, Ma W, Zhang M, Cheng F, Deng K, Zeng Q. The self-assembly and pyridine regulation of a hydrogen-bonded dimeric building block formed by a low-symmetric aromatic carboxylic acid. NANOSCALE 2022; 14:2419-2426. [PMID: 35098290 DOI: 10.1039/d1nr07840b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The supramolecular self-assembly behavior of a low-symmetric aromatic carboxylic acid molecule (H5BHB) and its co-assembly behavior with a series of pyridine molecules (BPD, BPDYB and TPDYB) were studied at the heptanoic acid/HOPG liquid-solid interface. Scanning tunneling microscopy (STM) observations revealed that H5BHB molecules tend to form dimeric building blocks which then assemble into a close-packed structure. BPD, BPDYB and TPDYB pyridine molecules were all able to form a stable two-component co-assembled structure with the H5BHB molecule, and in these co-assembled structures, the H5BHB molecule still takes the form of a dimer. It was found that the pyridine molecules were able to regulate the self-assembly structure of the H5BHB molecule, and the molecular arrangement of the co-assembly structures varies with the shape of the pyridine molecules. Based on the analysis of the STM results and density functional theory (DFT) calculations, the formation mechanism of the assembled structures was revealed.
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Affiliation(s)
- Siqi Zhang
- Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
- CAS key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Chen Chen
- CAS key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Jianqiao Li
- CAS key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Chunyu Ma
- CAS key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Xiaokang Li
- CAS key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Wei Ma
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Min Zhang
- Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Faliang Cheng
- Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Ke Deng
- CAS key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Qingdao Zeng
- CAS key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
- Center of Materials Science and Optoelectonics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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8
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Chen J, Gao C, Zhang Z, Liu X, Chen Y, Feng L. Kinetic control of chirality and circularly polarized luminescence in G-quartet materials. J Mater Chem B 2021; 9:7140-7144. [PMID: 34008691 DOI: 10.1039/d1tb00683e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of chirality of G-quartet materials has been of concern for a long time, however, the helix-handedness of G-quartet materials is still ambiguous, as well as the novel circularly polarized luminescence (CPL) properties. Here, we demonstrated that the handedness of G-quartet materials highly depends on their formation kinetics. By controlling the temperature or the initial concentration of reactants, we found that right-handed helical G-quartet nanostructures were synthesized in the slow process, while left-handed structures were synthesized in the fast process via orderly stacking. The phenomenon can be explained by the theory of kinetic trapping, in which a slow process leads to the thermodynamic equilibrium, while a fast process results in the kinetic trap state. Furthermore, the first kinetic trapping-controlled reversal CPL system was designed in G-quartet materials via chirality transfer, which has potential applications in CPL materials design and application.
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Affiliation(s)
- Jingqi Chen
- Materials Genome Institute, and Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China.
| | - Chenqi Gao
- Materials Genome Institute, and Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China.
| | - Zhiwei Zhang
- Materials Genome Institute, and Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China.
| | - Xiaowei Liu
- Materials Genome Institute, and Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China.
| | - Yingying Chen
- Materials Genome Institute, and Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China.
| | - Lingyan Feng
- Materials Genome Institute, and Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China.
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9
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Qiu S, Li Y, Xu S, Cai Y, Zhang Y, Li W. Temperature-Induced Structural Phase Transitions in Self-Assembled Hydrogen Bonded Networks at the Liquid/Solid Interface. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421090247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Bragança AM, Minoia A, Steeno R, Seibel J, Hirsch BE, Verstraete L, Ivasenko O, Müllen K, Mali KS, Lazzaroni R, De Feyter S. Detection and Stabilization of a Previously Unknown Two-Dimensional (Pseudo)polymorph using Lateral Nanoconfinement. J Am Chem Soc 2021; 143:11080-11087. [PMID: 34283574 DOI: 10.1021/jacs.1c04445] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report on the detection and stabilization of a previously unknown two-dimensional (2D) pseudopolymorph of an alkoxy isophthalic acid using lateral nanoconfinement. The self-assembled molecular networks formed by the isophthalic acid derivative were studied at the interface between covalently modified graphite and an organic solvent. When self-assembled on graphite with moderate surface coverage of covalently bound aryl groups, a previously unknown metastable pseudopolymorph was detected. This pseudopolymorph, which was presumably "trapped" in between the surface bound aryl groups, underwent a time-dependent phase transition to the stable polymorph typically observed on pristine graphite. The stabilization of the pseudopolymorph was then achieved by using an alternative nanoconfinement strategy, where the domains of the pseudopolymorph could be formed and stabilized by restricting the self-assembly in nanometer-sized shallow compartments produced by STM-based nanolithography carried out on a graphite surface with a high density of covalently bound aryl groups. These experimental results are supported by molecular mechanics and molecular dynamics simulations, which not only provide important insight into the relative stabilities of the different structures, but also shed light onto the mechanism of the formation and stabilization of the pseudopolymorph under nanoscopic lateral confinement.
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Affiliation(s)
- Ana M Bragança
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Andrea Minoia
- Laboratory for Chemistry of Novel Materials, Materials Research Institute, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Roelof Steeno
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Johannes Seibel
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Brandon E Hirsch
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Lander Verstraete
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Oleksandr Ivasenko
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Kunal S Mali
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Roberto Lazzaroni
- Laboratory for Chemistry of Novel Materials, Materials Research Institute, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
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11
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Khan SB, Lee SL. Supramolecular Chemistry: Host-Guest Molecular Complexes. Molecules 2021; 26:3995. [PMID: 34208882 PMCID: PMC8271753 DOI: 10.3390/molecules26133995] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022] Open
Abstract
In recent times, researchers have emphasized practical approaches for capturing coordinated and selective guest entrap. The physisorbed nanoporous supramolecular complexes have been widely used to restrain various guest species on compact supporting surfaces. The host-guest (HG) interactions in two-dimensional (2D) permeable porous linkages are growing expeditiously due to their future applications in biocatalysis, separation technology, or nanoscale patterning. The different crystal-like nanoporous network has been acquired to enclose and trap guest molecules of various dimensions and contours. The host centers have been lumped together via noncovalent interactions (such as hydrogen bonds, van der Waals (vdW) interactions, or coordinate bonds). In this review article, we enlighten and elucidate recent progress in HG chemistry, explored via scanning tunneling microscopy (STM). We summarize the synthesis, design, and characterization of typical HG structural design examined on various substrates, under ambient surroundings at the liquid-solid (LS) interface, or during ultrahigh vacuum (UHV). We emphasize isoreticular complexes, vibrant HG coordination, or hosts functional cavities responsive to the applied stimulus. Finally, we critically discuss the significant challenges in advancing this developing electrochemical field.
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Affiliation(s)
- Sadaf Bashir Khan
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Shern-Long Lee
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
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12
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Steeno R, Minoia A, Gimenez-Lopez MC, Blunt MO, Champness NR, Lazzaroni R, Mali KS, De Feyter S. Molecular dopant determines the structure of a physisorbed self-assembled molecular network. Chem Commun (Camb) 2021; 57:1454-1457. [PMID: 33438693 DOI: 10.1039/d0cc07338e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A small percentage of an impurity was shown, via scanning tunneling microscopy, to drastically change the on-surface self-assembly behavior of an aromatic tetracarboxylic acid, by initiating the nucleation and growth of a different polymorph. Molecular modelling simulations were used to shed further light onto the dopant-controlled assembly behaviour.
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Affiliation(s)
- Roelof Steeno
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
| | - Andrea Minoia
- Laboratory for Chemistry of Novel Materials, Materials Research Institute, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Maria C Gimenez-Lopez
- Centro Singular de Investigacion en Quimica Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Matthew O Blunt
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Neil R Champness
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Roberto Lazzaroni
- Laboratory for Chemistry of Novel Materials, Materials Research Institute, University of Mons, Place du Parc 20, 7000 Mons, 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.
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13
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Ustinov E. Thermodynamics, EOS, and heat capacity in molecular modeling of self-assembled molecular layers. J Chem Phys 2020; 153:204105. [PMID: 33261477 DOI: 10.1063/5.0031103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Self-assembled monolayers (SAMs) on solid surfaces represent a rapidly developed class of non-autonomous phases widely used in organic electronics, sensors, catalysis, and other applications. In many cases, the same organic molecules form various stable and metastable polymorphous structures that can transform to each other at certain parameters. A high rigidity of SAMs extremely complicates the evaluation of the chemical potential using standard methods based on thermodynamic integration. This study presents results of molecular modeling of two-dimensional structures of tripod-shaped molecules associated with the trimesic acid (TMA) molecules. A technique used here is based on a recently developed method of external fields imposed on an elongated simulation cell in the framework of a kinetic Monte Carlo algorithm. These fields are the external potential and a damping field that reduces the intermolecular potential and affects the system similar to the increase in temperature. Equations of state (EOS) for several TMA polymorphs have been obtained with the conventional Monte Carlo simulation. It was shown that, in each case, only one constant links the chemical potential obtained with the external field method and the EOS at any temperature and pressure. The heat capacities of SAMs at constant volume and pressure were also determined as functions of temperature and compressibility of the structure at given degrees of freedom. The approach can be used as a general tool for modeling and evaluation of thermodynamic properties of various rigid structures, including SAMs of functional organic molecules.
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Affiliation(s)
- Eugene Ustinov
- Ioffe Institute, 26 Polytechnicheskaya, St. Petersburg 194021, Russian Federation
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14
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Maeda M, Nakayama R, De Feyter S, Tobe Y, Tahara K. Hierarchical two-dimensional molecular assembly through dynamic combination of conformational states at the liquid/solid interface. Chem Sci 2020; 11:9254-9261. [PMID: 34094197 PMCID: PMC8162029 DOI: 10.1039/d0sc03163a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Self-sorting of multiple building blocks for correctly positioning molecules through orthogonal recognition is a promising strategy for construction of a hierarchical self-assembled molecular network (SAMN) on a surface. Herein we report that a trigonal molecule, dehydrobenzo[12]annulene (DBA) derivative having three tetradecyloxy chains and three hydroxy groups in an alternating manner, forms hierarchical triangular clusters of different sizes ranging from 2.4 to 16.4 nm, consisting of 3 to 78 molecules, respectively, at the liquid/graphite interface. The key is the dynamic combination of three different conformational states, which is solvent and concentration dependent. The present knowledge extends design strategies for production of sophisticated hierarchical SAMNs using a single component at the liquid/solid interface. Self-sorting of multiple building blocks for correctly positioning molecules through orthogonal recognition is a promising strategy for construction of a hierarchical self-assembled molecular network (SAMN) on a surface.![]()
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Affiliation(s)
- Matsuhiro Maeda
- Department of Applied Chemistry, School of Science and Technology, Meiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Ruri Nakayama
- Department of Applied Chemistry, School of Science and Technology, Meiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven Celestijnenlaan 200 F 3001 Leuven Belgium
| | - Yoshito Tobe
- The Institute of Scientific and Industrial Research, Osaka University Ibaraki Osaka 567-0047 Japan .,Department of Applied Chemistry, National Chiao Tung University 1001 Ta Hsueh Road Hsinchu 30030 Taiwan
| | - Kazukuni Tahara
- Department of Applied Chemistry, School of Science and Technology, Meiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
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15
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Mazur U, Hipps KW. Single molecule level studies of reversible ligand binding to metal porphyrins at the solution/solid interface. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424620300049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Ligands bind reversibly to metal porphyrins in processes such as molecular recognition, electron transport and catalysis. These chemically relevant processes are ubiquitous in biology and are important in technological applications. In this article, we focus on the current advances in ligand binding to metal porphyrin receptors noncovalently bound at the solution/solid interface. In particular, we restrict ourselves to studies at the single molecule level. Dynamics of the binding/dissociation process can be monitored by scanning tunneling microscopy (STM) and can yield both qualitative and quantitative information about ligand binding affinity and the energetics that define a particular ligation reaction. Molecular and time dependent imaging can establish whether the process under study is at equilibrium. Ligand-concentration-dependent studies have been used to determine adsorption isotherms and thermodynamic data for processes occurring at the solution/solid interface. In several binding reactions, the solid support acted as an electron-donating fifth coordination site, thereby significantly changing the metal porphyrin receptor’s affinity for exogenous ligands. Supporting calculations provide insight into the metalloporphyrin/support and ligand–metalloporphyrin/support interactions and their energetics.
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Affiliation(s)
- Ursula Mazur
- Department of Chemistry and Materials Science and Engineering Program, Washington State University, Pullman, Washington 99164-4630, USA
| | - K. W. Hipps
- Department of Chemistry and Materials Science and Engineering Program, Washington State University, Pullman, Washington 99164-4630, USA
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16
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Zeng X, Khan SB, Mahmood A, Lee SL. Nanoscale tailoring of supramolecular crystals via an oriented external electric field. NANOSCALE 2020; 12:15072-15080. [PMID: 32458926 DOI: 10.1039/d0nr01946a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The oriented external electric field of a scanning tunneling microscope (STM) has recently been adapted for controlling the chemical reaction and supramolecular phase transition at surfaces with molecular precision. However, to date, advance controls using such electric-fields for crystal engineering have not been achieved yet. Here, we present how the directional electric-field of an STM can be utilized to harness supramolecular crystallization on a solid surface. We show that a glass-like random-tiling assembly composed of p-terphenyl-3,5,3',5'-tetracarboxylic acid can transform into close-packed periodic assemblies under positive substrate bias conditions at the liquid/solid interface. Importantly, the nucleation and subsequent crystal growth for such field-induced products can be artificially tailored at the early stage in a real-time fashion. Through this method, we were able to produce a two-dimensional supramolecular single crystal. The as-prepared crystals with apparent brightness are ascribed to a spectroscopic feature linked to the electron density of states, which is thus strongly STM bias dependent.
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Affiliation(s)
- Xingming Zeng
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China 518060.
| | - Sadaf Bashir Khan
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China 518060. and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Provence, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China 518060
| | - Ayyaz Mahmood
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China 518060. and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Provence, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China 518060
| | - Shern-Long Lee
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China 518060.
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17
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Habets T, Lensen D, Speller S, Elemans JAAW. Self-Assembly of Covalently Linked Porphyrin Dimers at the Solid-Liquid Interface. Molecules 2019; 24:E3018. [PMID: 31434280 PMCID: PMC6720350 DOI: 10.3390/molecules24163018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/12/2019] [Accepted: 08/17/2019] [Indexed: 12/20/2022] Open
Abstract
The synthesis and surface self-assembly behavior of two types of metal-porphyrin dimers is described. The first dimer type consists of two porphyrins linked via a rigid conjugated spacer, and the second type has an alkyne linker, which allows rotation of the porphyrin moieties with respect to each other. The conjugated dimers were equipped with two copper or two manganese centers, while the flexible dimers allowed a modular built-up that also made the incorporation of two different metal centers possible. The self-assembly of the new porphyrin dimers at a solid-liquid interface was investigated at the single-molecule scale using scanning tunneling microscopy (STM). All dimers formed monolayers, of which the stability and the internal degree of ordering of the molecules depended on the metal centers in the porphyrins. While in all monolayers the dimers were oriented coplanar with respect to the underlying surface ('face-on'), the flexible dimer containing a manganese and a copper center could be induced, via the application of a voltage pulse in the STM setup, to self-assemble into monolayers in which the porphyrin dimers adopted a non-common perpendicular ('edge-on') geometry with respect to the surface.
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Affiliation(s)
- Thomas Habets
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Dennis Lensen
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Sylvia Speller
- Institute of Physics, University of Rostock, Albert-Einstein-Straße 23, 18059 Rostock, Germany
- Department Life, Light & Matter-University of Rostock, 18051 Rostock, Germany
| | - Johannes A A W Elemans
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
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18
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Mahmood A, Saeed M, Chan Y, Saleemi AS, Guo J, Lee SL. Synergic Effect: Temperature-Assisted Electric-Field-Induced Supramolecular Phase Transitions at the Liquid/Solid Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:8031-8037. [PMID: 31120252 DOI: 10.1021/acs.langmuir.9b00569] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Using trimesic acid (TMA) as a model system by means of scanning tunneling microscope (STM) equipped with a temperature controller, here, we report a temperature-assisted method to cooperatively control electric-field-induced supramolecular phase transitions at the liquid/solid interface. Octanoic acid is used as a solvent due to its good solubility for TMA and its less complicated pattern formed under negative STM bias (e.g., only chicken-wire polymorphs existing). At positive substrate bias, STM revealed that TMA assembly based on temperature modulations underwent phase transitions from a porous (22 °C) to a flower (45 °C) and further to a zigzag (68 °C) structure. The transitions are ascribed to the partial deprotonation of the carboxyl groups of TMA. Both the temperature and electrical polarity of the substrate are crucial, i.e., the transitions only take place at positive substrate bias and elevated temperatures. Molecular mechanics simulations were carried out to calculate the temperature and electric field dependence of the adsorption enthalpy and free energy of the chicken-wire assembly of TMA on the two layers of graphene surface. The calculated decrease in adsorption enthalpy with the increase of temperature and electric field values that causes the TMA chicken-wire assembly to be less stable is proposed to promote the occurrence of the phase transition observed by STM. This study paves the way toward program-controlled supramolecular phase switching via the synergic effect of electrical and thermal stimuli.
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19
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Chilukuri B, Mazur U, Hipps KW. Cooperativity and coverage dependent molecular desorption in self-assembled monolayers: computational case study with coronene on Au(111) and HOPG. Phys Chem Chem Phys 2019; 21:10505-10513. [PMID: 31070644 DOI: 10.1039/c9cp01774g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One of the common practices in the literature of molecular desorption is the comparison of theoretically (mostly using DFT) calculated single molecule adsorption energies with experimental desorption energies from studies like temperature programmed desorption (TPD) etc. Comparisons like those do not consider that the experimental desorption energies are obtained via ensemble techniques while theoretical values are calculated at the single molecule level. Theoretical values are generally based upon desorption of a single molecule from a clean surface, or upon desorption of an entire monolayer. On the other hand, coverage dependent molecule-molecule interactions add to and modify molecule-substrate interactions that contribute to the experimentally determined desorption energies. In this work, we explore the suitability of an additive nearest neighbor model for determining general coverage dependent single molecule desorption energies in non-covalent self-assembled monolayers (SAMs). These coverage dependent values serve as essential input to any model attempting to reproduce coverage dependent desorption or for understanding the time dependent desorption from a partially covered surface. This method is tested using a case study of coronene adsorbed on Au(111) and HOPG substrates with periodic DFT calculations. Calculations show that coronene exhibits coverage and substrate dependence in molecular desorption. We found that intermolecular contact energies in the coronene monolayer are not strongly influenced by the HOPG substrate, while coronene desorption on Au(111) exhibits strong cooperativity where the additive model fails.
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Affiliation(s)
- Bhaskar Chilukuri
- Department of Chemistry, Washington State University, Pullman, WA 99164-4630, USA.
| | - Ursula Mazur
- Department of Chemistry, Washington State University, Pullman, WA 99164-4630, USA.
| | - K W Hipps
- Department of Chemistry, Washington State University, Pullman, WA 99164-4630, USA.
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20
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Zhang SQ, Cheng LX, Gong ZL, Duan WB, Tu B, Zhong YW, Zeng QD. Temperature-Triggered Self-Assembled Structural Transformation: From Pure Hydrogen-Bonding Quadrilateral Nanonetwork to Trihexagonal Structures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6571-6577. [PMID: 31002519 DOI: 10.1021/acs.langmuir.9b00666] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Adequate control over the structures of molecular building blocks plays an important role in the fabrication of desired supramolecular nanostructures at interfaces. In this study, the formation of a pure hydrogen-bonding co-assembly supramolecular nanonetwork on a highly oriented pyrolytic graphite surface was demonstrated by means of a scanning tunneling microscope. The thermal annealing process was conducted to monitor the temperature-triggered structural transformation of the self-assembled nanonetwork. On the basis of the single-molecule-level resolution scanning tunneling microscopy images, together with the density functional theory calculations, the formation mechanisms of the formed nanoarrays were proposed. The results have great significance with regard to controlled construction of complex nanostructures on the surface.
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Affiliation(s)
- Si-Qi Zhang
- Department of Chemistry, School of Science , Beijing Jiaotong University , Beijing 100044 , P. R. China
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology (NCNST) , Beijing 100190 , P. R. China
| | - Lin-Xiu Cheng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology (NCNST) , Beijing 100190 , P. R. China
- Center of Materials Science and Optoelectonics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Zhong-Liang Gong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Wu-Biao Duan
- Department of Chemistry, School of Science , Beijing Jiaotong University , Beijing 100044 , P. R. China
| | - Bin Tu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology (NCNST) , Beijing 100190 , P. R. China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Qing-Dao Zeng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology (NCNST) , Beijing 100190 , P. R. China
- Center of Materials Science and Optoelectonics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
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21
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Zha B, Li J, Wu J, Miao X, Zhang M. Cooperation and competition of hydrogen and halogen bonds in 2D self-assembled nanostructures based on bromine substituted coumarins. NEW J CHEM 2019. [DOI: 10.1039/c9nj04726c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three coumarin derivatives (Co16, 6-Br-Co16 and 6,8-Br-Co16) with ester, ether, and carbonyl groups and different numbers of bromine substituents on the coumarin cores were synthesized.
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Affiliation(s)
- Bao Zha
- School of Electronic and Computer Engineering
- Peking University
- Shenzhen 518055
- People's Republic of China
- Shenzhen China Star Optoelectronics Technology Co., Ltd
| | - Jinxing Li
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- People's Republic of China
| | - Juntian Wu
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- People's Republic of China
| | - Xinrui Miao
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- People's Republic of China
| | - Min Zhang
- School of Electronic and Computer Engineering
- Peking University
- Shenzhen 518055
- People's Republic of China
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22
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Zou Y, Tu B, Yu L, Zheng Y, Lin Y, Luo W, Yang Y, Fang Q, Wang C. Peptide conformation and oligomerization characteristics of surface-mediated assemblies revealed by molecular dynamics simulations and scanning tunneling microscopy. RSC Adv 2019; 9:41345-41350. [PMID: 35540063 PMCID: PMC9076364 DOI: 10.1039/c9ra09320f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 11/29/2019] [Indexed: 11/21/2022] Open
Abstract
The characteristics of peptide conformations in both solution and surface-bound states, using poly-glycine as a model structure, are analyzed by using molecular dynamics (MD) simulations and scanning tunneling microscopy (STM).
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Affiliation(s)
- Yimin Zou
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Key Laboratory of Standardization and Measurement for Nanotechnoloty of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- CAS Center for Excellence in Brain Science
- National Center for Nanoscience and Technology
| | - Bin Tu
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Key Laboratory of Standardization and Measurement for Nanotechnoloty of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- CAS Center for Excellence in Brain Science
- National Center for Nanoscience and Technology
| | - Lanlan Yu
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Key Laboratory of Standardization and Measurement for Nanotechnoloty of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- CAS Center for Excellence in Brain Science
- National Center for Nanoscience and Technology
| | - Yongfang Zheng
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Key Laboratory of Standardization and Measurement for Nanotechnoloty of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- CAS Center for Excellence in Brain Science
- National Center for Nanoscience and Technology
| | - Yuchen Lin
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Key Laboratory of Standardization and Measurement for Nanotechnoloty of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- CAS Center for Excellence in Brain Science
- National Center for Nanoscience and Technology
| | - Wendi Luo
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Key Laboratory of Standardization and Measurement for Nanotechnoloty of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- CAS Center for Excellence in Brain Science
- National Center for Nanoscience and Technology
| | - Yanlian Yang
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Key Laboratory of Standardization and Measurement for Nanotechnoloty of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- CAS Center for Excellence in Brain Science
- National Center for Nanoscience and Technology
| | - Qiaojun Fang
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Key Laboratory of Standardization and Measurement for Nanotechnoloty of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- CAS Center for Excellence in Brain Science
- National Center for Nanoscience and Technology
| | - Chen Wang
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Key Laboratory of Standardization and Measurement for Nanotechnoloty of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- CAS Center for Excellence in Brain Science
- National Center for Nanoscience and Technology
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23
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Hu Y, Bragança AM, Verstraete L, Ivasenko O, Hirsch BE, Tahara K, Tobe Y, De Feyter S. Phase selectivity triggered by nanoconfinement: the impact of corral dimensions. Chem Commun (Camb) 2019; 55:2226-2229. [DOI: 10.1039/c8cc08602h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Phase behavior of self-assembled molecular networks is affected by spatial confinement in corrals.
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Affiliation(s)
- Yi Hu
- Department of Chemistry
- Division of Molecular Imaging and Photonics
- KU Leuven
- B-3001 Leuven
- Belgium
| | - Ana M. Bragança
- Department of Chemistry
- Division of Molecular Imaging and Photonics
- KU Leuven
- B-3001 Leuven
- Belgium
| | - Lander Verstraete
- Department of Chemistry
- Division of Molecular Imaging and Photonics
- KU Leuven
- B-3001 Leuven
- Belgium
| | - Oleksandr Ivasenko
- Department of Chemistry
- Division of Molecular Imaging and Photonics
- KU Leuven
- B-3001 Leuven
- Belgium
| | - Brandon E. Hirsch
- Department of Chemistry
- Division of Molecular Imaging and Photonics
- KU Leuven
- B-3001 Leuven
- Belgium
| | - Kazukuni Tahara
- Department of Applied Chemistry
- School of Science and Technology
- Meiji University
- Tama-ku
- Japan
| | - Yoshito Tobe
- Department of Applied Chemistry
- School of Science and Technology
- Meiji University
- Tama-ku
- Japan
| | - Steven De Feyter
- Department of Chemistry
- Division of Molecular Imaging and Photonics
- KU Leuven
- B-3001 Leuven
- Belgium
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24
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Wu H, Ting JM, Werba O, Meng S, Tirrell MV. Non-equilibrium phenomena and kinetic pathways in self-assembled polyelectrolyte complexes. J Chem Phys 2018; 149:163330. [DOI: 10.1063/1.5039621] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Hao Wu
- Institute for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
- Argonne National Laboratory, Lemont, Illinois 606439, USA
| | - Jeffrey M. Ting
- Institute for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
- Argonne National Laboratory, Lemont, Illinois 606439, USA
| | - Olivia Werba
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, USA
| | - Siqi Meng
- Institute for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Matthew V. Tirrell
- Institute for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
- Argonne National Laboratory, Lemont, Illinois 606439, USA
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25
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Cui D, MacLeod JM, Rosei F. Probing functional self-assembled molecular architectures with solution/solid scanning tunnelling microscopy. Chem Commun (Camb) 2018; 54:10527-10539. [PMID: 30079923 DOI: 10.1039/c8cc04341h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Over the past two decades, solution/solid STM has made clear contributions to our fundamental understanding of the thermodynamic and kinetic processes that occur in molecular self-assembly at surfaces. As the field matures, we provide an overview of how solution/solid STM is emerging as a tool to elucidate and guide the use of self-assembled molecular systems in practical applications, focusing on small molecule device engineering, molecular recognition and sensing and electronic modification of 2D materials.
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Affiliation(s)
- Daling Cui
- INRS-Energy, Materials and Telecommunications and Center for Self-Assembled Chemical Structures, Varennes, Quebec J3X 1S2, Canada.
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26
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Qin Y, Yang Y, Yao M, Xue X, Wang X, Huang H, Chen T, Wang D, Wan L. Self-assembly of an oligo( p-phenylenevinylene)-based molecule on an HOPG surface: insights from multi-scale simulation and STM observation. RSC Adv 2018; 8:31868-31873. [PMID: 35547496 PMCID: PMC9085817 DOI: 10.1039/c8ra05477k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 08/30/2018] [Indexed: 01/28/2023] Open
Abstract
To gain knowledge of the most important weak interactions for supramolecular self-assembly and observe molecular structure for self-assembled architectures, the two-dimensional self-assembly of an oligo(p-phenylenevinylene)-based molecule (AS-OPV) on highly oriented pyrolytic graphite has been investigated. Accurate atomic configuration for the AS-OPV self-assembled pattern has been identified by means of multi-scale simulation combined with scanning tunneling microscopy (STM) experiments. The weak interactions which contribute to the formation of AS-OPV self-assembly are studied by analysis of non-covalent interactions existing in the system and theoretical calculation of their energy values. Investigation of the molecular structure of self-assembly and STM images at a certain temperature range is performed by molecular dynamics and density functional theory simulations. This work paves the way to explore the contribution of weak interactions for the self-assembly system, as well as providing a reference to observe the possible self-assembled structure at temperatures not convenient for direct experimental observation.
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Affiliation(s)
- Yuan Qin
- School of Materials Science and Engineering, Dalian University of Technology Dalian 116024 China
| | - Yingying Yang
- School of Materials Science and Engineering, Dalian University of Technology Dalian 116024 China
| | - Man Yao
- School of Materials Science and Engineering, Dalian University of Technology Dalian 116024 China
| | - Xiaowan Xue
- School of Materials Science and Engineering, Dalian University of Technology Dalian 116024 China
| | - Xudong Wang
- School of Materials Science and Engineering, Dalian University of Technology Dalian 116024 China
| | - Hao Huang
- School of Materials Science and Engineering, Dalian University of Technology Dalian 116024 China
| | - Ting Chen
- Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences and Beijing National Laboratory for Molecular Sciences Beijing 100190 China
| | - Dong Wang
- Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences and Beijing National Laboratory for Molecular Sciences Beijing 100190 China
| | - Lijun Wan
- Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences and Beijing National Laboratory for Molecular Sciences Beijing 100190 China
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27
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Garah ME, Cook TR, Sepehrpour H, Ciesielski A, Stang PJ, Samorì P. Concentration-dependent supramolecular patterns of C 3 and C 2 symmetric molecules at the solid/liquid interface. Colloids Surf B Biointerfaces 2018; 168:211-216. [PMID: 29198983 DOI: 10.1016/j.colsurfb.2017.11.065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/27/2017] [Accepted: 11/28/2017] [Indexed: 11/17/2022]
Abstract
Here we report on a scanning tunnelling microscopy (STM) investigation on the self-assembly of C3- and C2-symmetric molecules at the solution/graphite interface. 1,3,5-tris((E)-2-(pyridin-4-yl)vinyl)benzene and 1,1,2,2-tetrakis(4-(pyridin-4-yl)phenyl)ethane are used as model systems. These molecules displayed a concentration dependent self-assembly behaviour on graphite, resulting in highly ordered supramolecular structures, which are stabilized jointly by van der Waals substrate-adsorbate interactions and in-plane intermolecular H-bonding. Denser packing is obtained when applying a relatively high concentration solution to the basal plane of the surface whereas a less dense porous network is observed upon lowering the concentration. We show that the molecular conformation does not influence the stability of the self-assembly and a twisted molecule can pack into dense and porous architectures under the concentration effect.
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Affiliation(s)
- Mohamed El Garah
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, F-67000, Strasbourg, France
| | - Timothy R Cook
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, UT, 84112, United State
| | - Hajar Sepehrpour
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, UT, 84112, United State
| | - Artur Ciesielski
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, F-67000, Strasbourg, France.
| | - Peter J Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, UT, 84112, United State.
| | - Paolo Samorì
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, F-67000, Strasbourg, France.
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28
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Iritani K, Ikeda M, Yang A, Tahara K, Anzai M, Hirose K, De Feyter S, Moore JS, Tobe Y. Electrostatically Driven Guest Binding in a Self-Assembled Porous Network at the Liquid/Solid Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6036-6045. [PMID: 29717878 DOI: 10.1021/acs.langmuir.8b00699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We present here the construction of a self-assembled two-dimensional (2D) porous monolayer bearing a highly polar 2D space to study guest co-adsorption through electrostatic interactions at the liquid/solid interface. For this purpose, a dehydrobenzo[12]annulene (DBA) derivative, DBA-TeEG, having tetraethylene glycol (TeEG) groups at the end of the three alternating alkoxy chains connected by p-phenylene linkers was synthesized. As a reference host molecule, DBA-C10, having nonpolar C10 alkyl chains at three alternating terminals, was employed. As guest molecules, hexagonal phenylene-ethynylene macrocycles (PEMs) attached by triethylene glycol (TEG) ester and hexyl ester groups, PEM-TEG and PEM-C6, respectively, at each vertex of the macrocyclic periphery were used. Scanning tunneling microscopy observations at the 1,2,4-trichlorobenzene/highly oriented pyrolytic graphite interface revealed that PEM-TEG was immobilized in the pores formed by DBA-TeEG at higher probability because of electrostatic interactions such as dipole-dipole and hydrogen bonding interactions between oligoether units of the host and guest, in comparison to PEM-C6 with nonpolar groups. These observations are discussed based on molecular mechanics simulations to investigate the role of the polar functional groups. When a nonpolar host matrix formed by DBA-C10 was used, however, only phase separation and preferential adsorption were observed; virtually no host-guest complexation was discernible. This is ascribed to the strong affinity between the guest molecules which form by themselves densely packed van der Waals networks on the surface.
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Affiliation(s)
- Kohei Iritani
- Division of Frontier Materials Science, Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan
| | - Motoki Ikeda
- Division of Frontier Materials Science, Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan
| | - Anna Yang
- Departments of Chemistry and Beckman Institute for Advanced Science and Technology , University of Illinois at Urbana Champaign , Urbana , Illinois 61801 , United States
| | - Kazukuni Tahara
- Division of Frontier Materials Science, Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan
- Department of Applied Chemistry, School of Science and Technology , Meiji University , Kawasaki , Kanagawa 214-8571 , Japan
| | - Masaru Anzai
- Department of Applied Chemistry, School of Science and Technology , Meiji University , Kawasaki , Kanagawa 214-8571 , Japan
| | - Keiji Hirose
- Division of Frontier Materials Science, Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan
| | - Steven De Feyter
- Department of Chemistry , KU Leuven-University of Leuven , Celestijnenlaan 200F , 3001 Leuven , Belgium
| | - Jeffrey S Moore
- Departments of Chemistry and Beckman Institute for Advanced Science and Technology , University of Illinois at Urbana Champaign , Urbana , Illinois 61801 , United States
| | - Yoshito Tobe
- Division of Frontier Materials Science, Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan
- The Institute of Scientific and Industrial Research , Osaka University , 8-1, Mihogaoka , Osaka 567-0047 , Ibaraki , Japan
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29
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Kim Y, Doh WH, Kim J, Park JY. In Situ Observations of UV-Induced Restructuring of Self-Assembled Porphyrin Monolayer on Liquid/Au(111) Interface at Molecular Level. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6003-6009. [PMID: 29726687 DOI: 10.1021/acs.langmuir.8b00418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Porphyrin-derived molecules have received much attention for use in solar energy conversion devices, such as artificial leaves and dye-sensitized solar cells. Because of their technological importance, a molecular-level understanding of the mechanism for supramolecular structure formation in a liquid, as well as their stability under ultraviolet (UV) irradiation, is important. Here, we observed the self-assembled structure of free-base, copper(II), and nickel(II) octaethylporphyrin formed on Au(111) in a dodecane solution using scanning tunneling microscopy (STM). As evident in the STM images, the self-assembled monolayers (SAMs) of these three porphyrins on the Au(111) surface showed hexagonal close-packed structures when in dodecane solution. Under UV irradiation (λ = 365 nm), the porphyrin molecules in the SAM or the dodecane solution move extensively and form new porphyrin clusters on the Au sites that have a high degree of freedom. Consequently, the Au(111) surface was covered with disordered porphyrin clusters. However, we found that the porphyrin molecules decomposed under UV irradiation at 254 nm. Molecular-scale observation of the morphological evolution of the porphyrin SAM under UV irradiation can provide a fundamental understanding of the degradation processes of porphyrin-based energy conversion devices.
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Affiliation(s)
- Yongman Kim
- Graduate School of Energy, Environment, Water, and Sustainability (EEWS) , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea
- Center for Nanomaterials and Chemical Reactions , Institute for Basic Science (IBS) , Daejeon 34141 , Republic of Korea
| | - Won Hui Doh
- Center for Nanomaterials and Chemical Reactions , Institute for Basic Science (IBS) , Daejeon 34141 , Republic of Korea
| | - Jeongjin Kim
- Graduate School of Energy, Environment, Water, and Sustainability (EEWS) , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea
- Center for Nanomaterials and Chemical Reactions , Institute for Basic Science (IBS) , Daejeon 34141 , Republic of Korea
| | - Jeong Young Park
- Graduate School of Energy, Environment, Water, and Sustainability (EEWS) , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea
- Center for Nanomaterials and Chemical Reactions , Institute for Basic Science (IBS) , Daejeon 34141 , Republic of Korea
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30
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Frath D, Yokoyama S, Hirose T, Matsuda K. Photoresponsive supramolecular self-assemblies at the liquid/solid interface. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2018. [DOI: 10.1016/j.jphotochemrev.2017.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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31
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Hipps KW, Mazur U. Kinetic and Thermodynamic Control in Porphyrin and Phthalocyanine Self-Assembled Monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3-17. [PMID: 28929771 DOI: 10.1021/acs.langmuir.7b02672] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Porphyrins and phthalocyanines are ubiquitous in modern science and technology. Their stability, redox properties, and photoresponse make them candidates for numerous applications. Many of these applications rely on thin films, and these are critically dependent on the first monolayer. In this article, we focus on noncovalently bound self-assembled monolayers of porphyrins and phthalocyanines at the solution-solid interface with special emphasis on the kinetic and thermodynamic processes that define the films and their reaction chemistry. We first discuss the difference between film-formation kinetics and desorption kinetics from fully formed films. We then present evidence that many of these monolayers are controlled by adsorption kinetics and are not in thermodynamic equilibrium. Measurement of the solution-solid interface desorption energy by scanning tunneling microscopy is discussed, and data is presented for cobalt, nickel, and free base octaethylporphyrin. The activation energy for the desorption of these compounds into phenyloctane is about half of the computed desorption energy in vacuum, and this is discussed in terms of the role of the solvent. Preexponential factors are very low compared to desorption into vacuum, and this is attributed to a reduction in the entropy of activation due to the participation of solvent in the transition state. An example of the use of relative desorption kinetics to create a new binary surface structure is given. It is suggested that this is a synthesis route that may have been missed because of the large difference in solution concentrations required to drive binary film formation. Attention then turns to the axial reaction chemistry of metalloporphyrins and metallophthalocyanines supported on conducting surfaces. We show several examples of chemistry unique to the supported complexes: cases where the metal binds ligands more readily and cases where the substrate induces ligand loss. Understanding this new axial coordination chemistry is of great importance in catalysis, sensing, and the growth of 3D materials from a self-assembled template.
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Affiliation(s)
- K W Hipps
- Department of Chemistry and Materials Science & Engineering Program, Washington State University , Pullman, Washington 99163-4630, United States
| | - Ursula Mazur
- Department of Chemistry and Materials Science & Engineering Program, Washington State University , Pullman, Washington 99163-4630, United States
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32
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He J, Myerson KJ, Zimmt MB. Zipping and unzipping monolayers: switchable monolayer oligomerization and adhesion via thiol–disulfide interconversion. Chem Commun (Camb) 2018; 54:3636-3639. [DOI: 10.1039/c7cc07846c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Triphenyleneethynylene (TPE) monolayers at the solution–HOPG interface are oligomerized by the oxidation of pendant thioethers to form disulfide cross-links. Subsequent disulfide reduction unzips oligomers to form monomeric TPE monolayer with pendant thiols.
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Affiliation(s)
- Jian He
- Department of Chemistry
- Brown University
- Providence
- USA
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33
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Cui D, Ebrahimi M, Rosei F, Macleod JM. Control of Fullerene Crystallization from 2D to 3D through Combined Solvent and Template Effects. J Am Chem Soc 2017; 139:16732-16740. [DOI: 10.1021/jacs.7b08642] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daling Cui
- Centre
Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
| | - Maryam Ebrahimi
- Centre
Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
| | - Federico Rosei
- Centre
Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
- Institute
of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu 610054 P. R. China
| | - Jennifer M. Macleod
- Centre
Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
- School
of Chemistry, Physics, and Mechanical Engineering, Queensland University of Technology, Brisbane, 4000 Queensland Australia
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34
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Iritani K, Ikeda M, Yang A, Tahara K, Hirose K, Moore JS, Tobe Y. Hexagonal Molecular Tiling by Hexagonal Macrocycles at the Liquid/Solid Interface: Structural Effects on Packing Geometry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12453-12462. [PMID: 28968503 DOI: 10.1021/acs.langmuir.7b03007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We present here hexagonal tiling using hexagonal phenylene-ethynylene and phenylene-butadiynylene macrocycles attached by alkyl ester groups, PEM-C6 and PBM-C8, respectively, or triethylene glycol ester groups, PEM-TEG and PBM-TEG, respectively, at each vertex of the macrocyclic periphery at the liquid/solid interface. In this study, we focused on the effects of macrocyclic core size and the chemical properties of side chains attached to macrocyclic cores as well as solute concentrations on the hexagonal geometry of self-assembled monolayers. STM observations at the 1,2,4-trichrolobenzene/graphite interface revealed that PEM-C6 formed a honeycomb structure by van der Waals interactions between the interdigitated alkyl chains. However, upon increasing solute concentration, it changed to more dense hexagonal structure (tentatively called loose hexagonal structure I). In contrast, PBM-C8 formed loose hexagonal structure II of a slightly different packing mode at low concentration, while at high concentration it formed a high-density hexagonal structure in which alkyl chains are not adsorbed on the surface (dense hexagonal structure). In the dense hexagonal structure, macrocyclic cores are linked by hydrogen bonds between the ester carbonyl oxygen and the aromatic hydrogen atoms of the neighboring macrocycles. The packing geometries of loose hexagonal structures of PEM-C6 and PBM-C8 are different due to the different distance between the attachment of the alkyl ester groups which are located in confined space. On the other hand, PEM-TEG and PBM-TEG formed dense hexagonal structures, similar to PBM-C8 at high concentration, with their TEG units not adsorbed on the surface.
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Affiliation(s)
- Kohei Iritani
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University , Toyonaka, Osaka 560-8531, Japan
| | - Motoki Ikeda
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University , Toyonaka, Osaka 560-8531, Japan
| | - Anna Yang
- Department of Chemistry and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Kazukuni Tahara
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University , Toyonaka, Osaka 560-8531, Japan
- Department of Applied Chemistry, School of Science and Technology, Meiji University , Kawasaki, Kanagawa 214-8571, Japan
| | - Keiji Hirose
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University , Toyonaka, Osaka 560-8531, Japan
| | - Jeffrey S Moore
- Department of Chemistry and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Yoshito Tobe
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University , Toyonaka, Osaka 560-8531, Japan
- The Institute of Scientific and Industrial Research, Osaka University , 8-1, Mihogaoka, Ibaraki Osaka 567-0047, Japan
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35
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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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36
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MacLeod JM, Lipton-Duffin J, Fu C, Taerum T, Perepichka DF, Rosei F. A 2D Substitutional Solid Solution through Hydrogen Bonding of Molecular Building Blocks. ACS NANO 2017; 11:8901-8909. [PMID: 28806527 DOI: 10.1021/acsnano.7b03172] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Two-dimensional (2D) molecular self-assembly allows for the formation of well-defined supramolecular layers with tailored geometrical, compositional, and chemical properties. To date, random intermixing and entropic effects in these systems have largely been associated with crystalline disorder and glassy phases. Here we describe a 2D crystalline self-assembled molecular system that exhibits random incorporation of substitutional molecules. The lattice is formed from a mixture of trimesic acid (TMA) and terthienobenzenetricarboxylic acid (TTBTA), C3-symmetric hydrogen-bonding units of very different sizes (0.79 and 1.16 nm, respectively), at the solution-highly oriented pyrolitic graphite (HOPG) interface. Remarkably, the TTBTA substitutes into the TMA lattice at a fixed stoichiometry near 12%. The resulting lattice constant is consistent with Vegard's law prediction for an alloy with a composition TMA0.88TTBTA0.12, and the substrate orientation of the lattice is defined by an epitaxial relation with the HOPG substrate. The Gibbs free energy for the TMA/TTBTA lattice was elucidated by considering the entropy of intermixing, via Monte Carlo simulations of multiplicity of the substitutional lattices, and the enthalpy of intermixing, via density functional theory calculations. The latter show that both the bond enthalpy of the H-bonded lattice and the adsorption enthalpy of the molecule/substrate interactions play important roles. This work provides insight into the manifestation of entropy in a molecular crystal constrained by both epitaxy and intermolecular interactions and demonstrates that a randomly intermixed yet crystalline 2D solid can be formed through hydrogen bonding of molecular building blocks of very different size.
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Affiliation(s)
- Jennifer M MacLeod
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux, Télécommunications , 1650 Lionel Boulet Boulevard, Varennes, QC, Canada J3X 1S2
| | - Josh Lipton-Duffin
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux, Télécommunications , 1650 Lionel Boulet Boulevard, Varennes, QC, Canada J3X 1S2
| | - Chaoying Fu
- Department of Chemistry, McGill University , 801 Sherbrooke Street W., Montreal, QC, Canada H3A 0B8
| | - Tyler Taerum
- Department of Chemistry, McGill University , 801 Sherbrooke Street W., Montreal, QC, Canada H3A 0B8
| | - Dmitrii F Perepichka
- Department of Chemistry, McGill University , 801 Sherbrooke Street W., Montreal, QC, Canada H3A 0B8
| | - Federico Rosei
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux, Télécommunications , 1650 Lionel Boulet Boulevard, Varennes, QC, Canada J3X 1S2
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China , Chengdu 610054, People's Republic of China
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37
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Nishitani N, Hirose T, Matsuda K. Influence of Multidirectional Interactions on Domain Size and Shape of 2-D Molecular Assemblies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:9151-9159. [PMID: 28783345 DOI: 10.1021/acs.langmuir.7b02094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The effect of molecule-molecule interactions on the size and shape of two-dimensional (2-D) ordering domains was investigated using scanning tunneling microscopy (STM) at the liquid/solid interface. Synthesized alkoxybenzene derivatives bearing amide group tend to form very large domains of 2-D orderings (>0.25 μm2), whereas the domain size of corresponding urea derivatives was significantly small in the same condition. The quantitative analysis of the concentration dependence of surface coverage using a nucleation-elongation model suggests that the replacement of amide functionality by urea increased the equilibrium constant of the nucleation process of 2-D self-assembly, which is a key factor for the domain size at the liquid/solid interface. Interestingly, the STM observation revealed that a slight difference of molecular structure influences the shape of 2-D ordering domains, and needle-shaped domains with large aspect ratio around 10 were observed by tuning molecule-molecule intramolecular interactions in 2-D self-assembly formed at a liquid/graphite interface.
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Affiliation(s)
- Nobuhiko Nishitani
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takashi Hirose
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kenji Matsuda
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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38
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Iritani K, Tahara K, De Feyter S, Tobe Y. Host-Guest Chemistry in Integrated Porous Space Formed by Molecular Self-Assembly at Liquid-Solid Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:4601-4618. [PMID: 28206764 DOI: 10.1021/acs.langmuir.7b00083] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Host-guest chemistry in two-dimensional (2D) space, that is, physisorbed monolayers of a single atom or a single molecular thickness on surfaces, has become a subject of intense current interest because of perspectives for various applications in molecular-scale electronics, selective sensors, and tailored catalysis. Scanning tunneling microscopy has been used as a powerful tool for the visualization of molecules in real space on a conducting substrate surface. For more than a decade, we have been investigating the self-assembly of a series of triangle-shaped phenylene-ethynylene macrocycles called dehydrobenzo[12]annulenes (DBAs). These molecules are substituted with six alkyl chains and are capable of forming hexagonal porous 2D molecular networks via van der Waals interactions between interdigitated alkyl chains at the interface of organic solvents and graphite. The dimension of the nanoporous space or nanowell formed by the self-assembly of DBAs can be controlled from 1.6 to 4.7 nm by simply changing the alkyl chain length from C6 to C20. Single molecules as well as homoclusters and heteroclusters are capable of coadsorbing within the host matrix using shape- and size-complementarity principles. Moreover, on the basis of the versatility of the DBA molecules that allows chemical modification of the alkyl chain terminals, we were able to decorate the interior space of the nanoporous networks with functional groups such as azobenzenedicarboxylic acid for photoresponsive guest adsorption/desorption or fluoroalkanes and tetraethylene glycol groups for selective guest binding by electrostatic interactions and zinc-porphyrin units for complexation with a guest by charge-transfer interactions. In this Feature Article, we describe the general aspects of molecular self-assembly at liquid/solid interfaces, followed by the formation of programmed porous molecular networks using rationally designed molecular building blocks. We focus on our own work involving host-guest chemistry in integrated nanoporous space that is modified for specific purposes.
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Affiliation(s)
- Kohei Iritani
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University , Toyonaka, Osaka 560-8531, Japan
| | - Kazukuni Tahara
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University , Toyonaka, Osaka 560-8531, Japan
- Department of Applied Chemistry, School of Science and Technology, Meiji University , Kawasaki, Kanagawa 214-8571, Japan
| | - Steven De Feyter
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven - University of Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Yoshito Tobe
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University , Toyonaka, Osaka 560-8531, Japan
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39
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Guo Z, Yu P, Sun K, Wang W, Wei Y, Li Z. Two-Dimensional Crystallization of Rylene Diimide Based n-Type Semiconductors Tuned by the Dimensions of the Aromatic Core at the Liquid-Solid Interface. Chem Asian J 2017; 12:1104-1110. [DOI: 10.1002/asia.201700271] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 03/29/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Zongxia Guo
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P. R. China
| | - Ping Yu
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P. R. China
| | - Kai Sun
- Beijing National Laboratory for Molecular Science (BNLMS); Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Wenpin Wang
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P. R. China
| | - Yuhan Wei
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P. R. China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department; School of Polymer Science and Engineering; Qingdao University of Science and Technology (QUST); Qingdao 266042 P. R. China
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40
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Eris S, Azizian S. Extension of classical adsorption rate equations using mass of adsorbent: A graphical analysis. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.02.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Mukherjee A, Teyssandier J, Hennrich G, De Feyter S, Mali KS. Two-dimensional crystal engineering using halogen and hydrogen bonds: towards structural landscapes. Chem Sci 2017; 8:3759-3769. [PMID: 28553534 PMCID: PMC5427994 DOI: 10.1039/c7sc00129k] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 03/05/2017] [Indexed: 12/15/2022] Open
Abstract
Two-dimensional (2D) crystallization on solid surfaces is governed by a subtle balance of supramolecular and interfacial interactions. However, these subtle interactions often make the prediction of supramolecular structure from the molecular structure impossible. As a consequence, surface-based 2D crystallization has often been studied on a case-by-case basis, which hinders the identification of structure-determining relationships between different self-assembling systems. Here we begin the discussion on such structure-determining relationships by comparing the 2D crystallization of two identical building blocks based on a 1,3,5-tris(pyridine-4-ylethynyl)benzene unit at the solution-solid interface. The concepts of supramolecular synthons and structural landscapes are introduced in the context of 2D crystallization on surfaces to identify common structural elements. The systems are characterized using scanning tunneling microscopy (STM). This strategy involves carrying out minor structural modifications on the parent compound to access supramolecular patterns that are otherwise not obtained. We demonstrate that this chemical perturbation strategy translates equally well for 2D co-crystallization experiments with halogen bond donors yielding porous bi-component networks. The holistic approach described here represents a stepping stone towards gaining predictive power over the 2D crystallization of molecules on solid surfaces.
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Affiliation(s)
- Arijit Mukherjee
- Division of Molecular Imaging and Photonics , Department of Chemistry , KU Leuven-University of Leuven , Celestijnenlaan 200F , B3001 Leuven , Belgium . ;
| | - Joan Teyssandier
- Division of Molecular Imaging and Photonics , Department of Chemistry , KU Leuven-University of Leuven , Celestijnenlaan 200F , B3001 Leuven , Belgium . ;
| | - Gunther Hennrich
- Universidad Autonoma de Madrid , Cantoblanco , 28049 Madrid , Spain
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics , Department of Chemistry , KU Leuven-University of Leuven , Celestijnenlaan 200F , B3001 Leuven , Belgium . ;
| | - Kunal S Mali
- Division of Molecular Imaging and Photonics , Department of Chemistry , KU Leuven-University of Leuven , Celestijnenlaan 200F , B3001 Leuven , Belgium . ;
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42
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Six A, Bocheux A, Charra F, Mathevet F, Kreher D, Attias AJ. 2D self-assembly of phenylene-vinylene tectons at the liquid-highly oriented pyrolytic graphite interface: from chain length effects to anisotropic guest-host dynamics. NANOTECHNOLOGY 2017; 28:025602. [PMID: 27922835 DOI: 10.1088/1361-6528/28/2/025602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Here we report the synthesis and characterization of a series of new phenylene-vinylene tectons. The study by scanning tunneling microscopy of their supramolecular self-assembly at the interface between a phenyloctane solution and highly oriented pyrolytic graphite demonstrates that variation of concentration and length of alkyl chains led to the formation of different networks, a compact one and a nanoporous one, with a fine control of the lattice parameters. The study of guest-host properties of the nanoporous network revealed a selectivity toward guest compounds according to their shape and size. Moreover, the statistical analysis of pore-to-pore guest dynamics evidences an anisotropic diffusion process.
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Affiliation(s)
- A Six
- Sorbonne Universités, UPMC Université Paris 06, CNRS UMR 8232, Institut Parisien de Chimie Moléculaire, Université Pierre et Marie Curie, 4 Place Jussieu, F-75005 Paris, France
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43
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Velpula G, Takeda T, Adisoejoso J, Inukai K, Tahara K, Mali KS, Tobe Y, De Feyter S. On the formation of concentric 2D multicomponent assemblies at the solution–solid interface. Chem Commun (Camb) 2017; 53:1108-1111. [DOI: 10.1039/c6cc09188a] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We report on the design and fabrication of a four-component supramolecular network consisting of three concentric shells around a central guest.
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Affiliation(s)
- Gangamallaiah Velpula
- Division of Molecular Imaging and Photonics
- Department of Chemistry
- KU Leuven-University of Leuven
- B-3001 Leuven
- Belgium
| | - Takashi Takeda
- Division of Frontier Materials Science
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Jinne Adisoejoso
- Division of Molecular Imaging and Photonics
- Department of Chemistry
- KU Leuven-University of Leuven
- B-3001 Leuven
- Belgium
| | - Koji Inukai
- Division of Frontier Materials Science
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Kazukuni Tahara
- Division of Frontier Materials Science
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Kunal S. Mali
- Division of Molecular Imaging and Photonics
- Department of Chemistry
- KU Leuven-University of Leuven
- B-3001 Leuven
- Belgium
| | - Yoshito Tobe
- Division of Frontier Materials Science
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics
- Department of Chemistry
- KU Leuven-University of Leuven
- B-3001 Leuven
- Belgium
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44
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Mali KS, Pearce N, De Feyter S, Champness NR. Frontiers of supramolecular chemistry at solid surfaces. Chem Soc Rev 2017; 46:2520-2542. [DOI: 10.1039/c7cs00113d] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Supramolecular chemistry on solid surfaces represents an exciting field of research that continues to develop in new and unexpected directions.
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Affiliation(s)
- Kunal S. Mali
- Division of Molecular Imaging and Photonics
- Department of Chemistry
- KU Leuven – University of Leuven
- B3001 Leuven
- Belgium
| | | | - Steven De Feyter
- Division of Molecular Imaging and Photonics
- Department of Chemistry
- KU Leuven – University of Leuven
- B3001 Leuven
- Belgium
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45
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Dou J, Sun Z, Opalade AA, Wang N, Fu W, Tao F(F. Operando chemistry of catalyst surfaces during catalysis. Chem Soc Rev 2017; 46:2001-2027. [DOI: 10.1039/c6cs00931j] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The chemistry of a catalyst surface during catalysis is crucial for a fundamental understanding of the mechanisms of a catalytic reaction performed on the catalyst in the gas or liquid phase.
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Affiliation(s)
- Jian Dou
- Department of Chemical and Petroleum Engineering and Department of Chemistry
- University of Kansas
- Lawrence
- USA
| | - Zaicheng Sun
- Department of Chemistry and Chemical Engineering
- Beijing University of Technology
- Beijing
- China
| | - Adedamola A. Opalade
- Department of Chemical and Petroleum Engineering and Department of Chemistry
- University of Kansas
- Lawrence
- USA
| | - Nan Wang
- Department of Chemical and Petroleum Engineering and Department of Chemistry
- University of Kansas
- Lawrence
- USA
| | - Wensheng Fu
- Chongqing Key Laboratory of Green Synthesis and Applications and College of Chemistry
- Chongqing Normal University
- Chongqing
- China
| | - Franklin (Feng) Tao
- Department of Chemical and Petroleum Engineering and Department of Chemistry
- University of Kansas
- Lawrence
- USA
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46
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Zhang L, Li J, Qiu S, Huang X, Zeng Z. Synthesis and self-assembly of a D3h symmetric polycyclic aromatic hydrocarbon into a rigid 2D honeycomb network. NEW J CHEM 2017. [DOI: 10.1039/c6nj03962f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C
3 symmetric hexa-peri-hexabenzocoronene carboxylic acid assembles into a rigid 2D honeycomb network at a solid–liquid interface.
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Affiliation(s)
- Liyan Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Jinling Li
- School of Material Science & Engineering
- Henan University of Technology
- Zhengzhou 450001
- P. R. China
| | - Shuhai Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Xiaobo Huang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Zebing Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
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47
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Verstraete L, Greenwood J, Hirsch BE, De Feyter S. Self-Assembly under Confinement: Nanocorrals for Understanding Fundamentals of 2D Crystallization. ACS NANO 2016; 10:10706-10715. [PMID: 27749033 PMCID: PMC5198256 DOI: 10.1021/acsnano.6b05954] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 10/11/2016] [Indexed: 05/30/2023]
Abstract
Nanocorrals with different size, shape, and orientation are created on covalently modified highly oriented pyrolytic graphite surfaces using scanning probe nanolithography, i.e., nanoshaving. Alkylated diacetylene molecules undergo laterally confined supramolecular self-assembly within these corrals. When nanoshaving is performed in situ, at the liquid-solid interface, the orientation of the supramolecular lamellae structure is directionally influenced by the gradual graphite surface exposure. Careful choice of the nanoshaving direction with respect to the substrate symmetry axes promotes alignment of the supramolecular lamellae within the corral. Self-assembly occurring inside corrals of different size and shape reveals the importance of geometric and kinetic constraints controlled by the nanoshaving process. Finally, seed-mediated crystallization studies demonstrate confinement control over nucleation and growth principles.
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48
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Yan Y, Huang J, Tang BZ. Kinetic trapping - a strategy for directing the self-assembly of unique functional nanostructures. Chem Commun (Camb) 2016; 52:11870-84. [PMID: 27494003 DOI: 10.1039/c6cc03620a] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supramolecular self-assembly into various nano- or microscopic structures based on non-covalent interactions between molecules has been recognized as a very efficient approach that leads to functional materials. Since most non-covalent interactions are relatively weak and form and break without significant activation barriers, the thermodynamic equilibrium of many supramolecular systems can be easily influenced by processing pathways that allow the system to stay in a kinetically trapped state. Thus far, kinetic traps have been found to be very important in producing more elaborate structural and functional diversity of self-assembled systems. In this review, we try to summarize the approaches that can produce kinetically trapped self-assemblies based on examples made by us. We focus on the following subjects: (1) supramolecular pathway dependent self-assembly, including kinetically trapped self-assemblies facilitated by host-guest chemistry, coordination chemistry, and electrostatic interactions; (2) physical processing pathway dependent self-assembly, including solvent quality controlled self-assembly, evaporation induced self-assembly and crystallization induced self-assembly.
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Affiliation(s)
- Yun Yan
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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49
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Hibino M. Adsorption Behaviors of Mixed Monolayers of n-Alkanes at the Liquid-Solid Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4705-4709. [PMID: 27124544 DOI: 10.1021/acs.langmuir.5b04021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To understand the self-assembly of monolayers at the liquid-solid interface, a thermodynamic model, which describes the contributions of the molecular interactions, is essential. We present an adapted Zimm-Bragg model of the cooperativity transitions for determining the Gibbs free energy for self-assembly at the liquid-solid interface. Scanning tunneling microscopy was used to observe the monolayers formed on graphite from phenyloctane solutions of binary mixtures of n-hexacosane (C26H54) and n-tetratriacontane (C34H70). This revealed that the sharp transition in the monolayers from the full surface coverage of the long-chain alkane, which is adsorbed preferentially, to the full coverage of the short-chain alkane is a function of the mixture composition. The model allows for the estimation of the free-energy changes associated with the difference in the alkyl chain length and the interface between the two different alkane regions in the monolayers. It is also suitable for understanding more complex systems that exhibit intermolecular interactions.
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Affiliation(s)
- Masahiro Hibino
- Department of Applied Science, Muroran Institute of Technology , 27-1 Mizumoto-cho, Muroran 050-8585, Japan
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50
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Kamm JM, Iverson CP, Lau WY, Hopkins MD. Axial Ligand Effects on the Structures of Self-Assembled Gallium-Porphyrin Monolayers on Highly Oriented Pyrolytic Graphite. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:487-495. [PMID: 26703936 DOI: 10.1021/acs.langmuir.5b03696] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Monolayers of five-coordinate gallium octaethylporphyrin complexes (Ga(OEP)X; X = Cl, Br, I, O3SCF3, CCPh) on highly oriented pyrolytic graphite were studied at the solid-liquid (1-phenyloctane) interface using scanning tunneling microscopy (STM) to probe the dependence of their properties on the nature of the axial X ligand. Density functional theory calculations of the gas-phase structures of the free molecules reveal that the gallium atom is positioned above the plane of the porphyrin macrocycle, with this pyramidal distortion increasing in magnitude according to X = O3SCF3 (displacement = 0.35 Å) < Cl, Br, I (∼0.47 Å) < CCPh (0.54 Å). All compounds exhibit pseudohexagonal close-packed structures in which the porphyrin is oriented coplanar with the surface and the axial ligand is oriented perpendicular to it, and with unit-cell parameters that are within experimental error of each other (a, b = 1.34 (3)-1.39 (2) nm, Γ = 66 (2)-68 (1)°). In contrast to these close similarities, the stabilities of the monolayers are sensitive to the nature of the axial ligand: the monolayers of Ga(OEP)(O3SCF3) and Ga(OEP)(CCPh) exhibit damage during the STM experiment upon repeated scanning and upon toggling the sign of the bias potential, but monolayers of Ga(OEP)Cl, Ga(OEP)Br, and Ga(OEP)I do not. A second important ligand-influenced property is that Ga(OEP)I forms bilayer structures, whereas the other Ga(OEP)X compounds form monolayers exclusively under identical conditions. The top layer of the Ga(OEP)I bilayer is oriented with the iodo ligand directed away from the surface, like the bottom layer, but the molecules pack in a square, lower-density geometry. The comparatively large polarizability of the iodo ligand is suggested to be important in stabilizing the bilayer structure.
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Affiliation(s)
- Judith M Kamm
- Department of Chemistry, The University of Chicago , 929 E. 57th Street, Chicago, Illinois 60637, United States
| | - Cameron P Iverson
- Department of Chemistry, The University of Chicago , 929 E. 57th Street, Chicago, Illinois 60637, United States
| | - Wing-Yeung Lau
- Department of Chemistry, The University of Chicago , 929 E. 57th Street, Chicago, Illinois 60637, United States
| | - Michael D Hopkins
- Department of Chemistry, The University of Chicago , 929 E. 57th Street, Chicago, Illinois 60637, United States
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