1
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Li D, Seki S, Ishikawa A, Omoto K, Yasuhara K, Rapenne G, Kawai S. Procrystalline Self-Assembly of Desymmetrized Pentaphenylcyclopentadiene. J Phys Chem Lett 2024; 15:7628-7634. [PMID: 39030664 DOI: 10.1021/acs.jpclett.4c01364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
The interplay between the molecular shape and the intermolecular interaction plays a decisive role in self-assembled structures. Recently, inherent randomness of low ordered assemblies, resulting from lack of short- and long-range periodicities, has attracted significant attention due to the unique structural, electronic, and mechanical properties. Here, we present procrystalline self-assemblies of pentaphenyl cyclopentadienyl derivatives on Ag(111) and Au(111) with scanning tunneling microscopy, operating at 4.3 K under ultrahigh vacuum conditions. Two examples, using 5-fold symmetric molecules substituted with methyl or fluorine groups, show that weak interactions, such as π-π stacking, CH-π interactions, and CH···F hydrogen bonding, play a pivotal role in formation of the procrystalline assembly. Our results may give insights into the intricate relationship between the molecular shape and the intermolecular interaction in the formation of non-crystalline assemblies.
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Affiliation(s)
- Donglin Li
- Center for Basic Research on Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Sota Seki
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, 630-0192, Japan
| | - Atsushi Ishikawa
- Department of Transdisciplinary Science and Engineering, School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Kenichiro Omoto
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, 630-0192, Japan
| | - Kazuma Yasuhara
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, 630-0192, Japan
- Center for Digital Green-innovation, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Gwénaël Rapenne
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, 630-0192, Japan
- CEMES, Université de Toulouse, CNRS, 29, rue Marvig, 31055 Toulouse, France
| | - Shigeki Kawai
- Center for Basic Research on Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8571, Japan
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2
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Xie R, Hu Y, Lee SL. A Paradigm Shift from 2D to 3D: Surface Supramolecular Assemblies and Their Electronic Properties Explored by Scanning Tunneling Microscopy and Spectroscopy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300413. [PMID: 36922729 DOI: 10.1002/smll.202300413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/21/2023] [Indexed: 06/15/2023]
Abstract
Exploring supramolecular architectures at surfaces plays an increasingly important role in contemporary science, especially for molecular electronics. A paradigm of research interest in this context is shifting from 2D to 3D that is expanding from monolayer, bilayers, to multilayers. Taking advantage of its high-resolution insight into monolayers and a few layers, scanning tunneling microscopy/spectroscopy (STM/STS) turns out a powerful tool for analyzing such thin films on a solid surface. This review summarizes the representative efforts of STM/STS studies of layered supramolecular assemblies and their unique electronic properties, especially at the liquid-solid interface. The superiority of the 3D molecular networks at surfaces is elucidated and an outlook on the challenges that still lie ahead is provided. This review not only highlights the profound progress in 3D supramolecular assemblies but also provides researchers with unusual concepts to design surface supramolecular structures with increasing complexity and desired functionality.
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Affiliation(s)
- Rongbin Xie
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yi Hu
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Shern-Long Lee
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
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3
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Torda M, Goulermas JY, Kurlin V, Day GM. Densest plane group packings of regular polygons. Phys Rev E 2022; 106:054603. [PMID: 36559448 DOI: 10.1103/physreve.106.054603] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 10/18/2022] [Indexed: 11/09/2022]
Abstract
Packings of regular convex polygons (n-gons) that are sufficiently dense have been studied extensively in the context of modeling physical and biological systems as well as discrete and computational geometry. Former results were mainly regarding densest lattice or double-lattice configurations. Here we consider all two-dimensional crystallographic symmetry groups (plane groups) by restricting the configuration space of the general packing problem of congruent copies of a compact subset of the two-dimensional Euclidean space to particular isomorphism classes of the discrete group of isometries. We formulate the plane group packing problem as a nonlinear constrained optimization problem. By means of the Entropic Trust Region Packing Algorithm that approximately solves this problem, we examine some known and unknown densest packings of various n-gons in all 17 plane groups and state conjectures about common symmetries of the densest plane group packings for every n-gon.
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Affiliation(s)
- Miloslav Torda
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool L7 3NY, United Kingdom and Department of Computer Science, University of Liverpool, Liverpool L69 3DR, United Kingdom
| | - John Y Goulermas
- Department of Computer Science, University of Liverpool, Liverpool L69 3DR, United Kingdom
| | | | - Graeme M Day
- School of Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom
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4
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Zhang X, Ding H, Chen X, Lin H, Li Q, Gao J, Pan M, Guo Q. Complex supramolecular tessellations with on-surface self-synthesized C 60 tiles through van der Waals interaction. NANOSCALE 2022; 14:1333-1339. [PMID: 35014655 DOI: 10.1039/d1nr05589e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Supramolecular tessellation with self-synthesized (C60)7 tiles is achieved based on a cooperative interaction between co-adsorbed C60 and octanethiol (OT) molecules. Tile synthesis and tiling take place simultaneously on a gold substrate leading to a two-dimensional lattice of (C60)7 tiles with OT as the binder molecule filling the gaps between the tiles. This supramolecular tessellation is featured with simultaneous on-site synthesis of tiles and self-organized tiling. In the absence of specific functional groups, the key to ordered tiling for the C60/OT system is the collective van der Waals (vdW) interaction among a large number of molecules. This bicomponent system herein offers a way for the artificial synthesis of 2D complex vdW supramolecular tessellations.
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Affiliation(s)
- Xin Zhang
- School of Physics, Northwest University, 710069, China
| | - Haoxuan Ding
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
| | - Xiaorui Chen
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China.
| | - Haiping Lin
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China.
| | - Qing Li
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China.
| | - Jianzhi Gao
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China.
| | - Minghu Pan
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China.
| | - Quanmin Guo
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
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5
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Leith GA, Shustova NB. Graphitic supramolecular architectures based on corannulene, fullerene, and beyond. Chem Commun (Camb) 2021; 57:10125-10138. [PMID: 34523630 DOI: 10.1039/d1cc02896k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this Feature Article, we survey the advances made in the field of fulleretic materials over the last five years. Merging the intriguing characteristics of fulleretic molecules with hierarchical materials can lead to enhanced properties of the latter for applications in optoelectronic, biomaterial, and heterogeneous catalysis sectors. As there has been significant growth in the development of fullerene- and corannulene-containing materials, this article will focus on studies performed during the last five years exclusively, and highlight the recent trends in designing fulleretic compounds and understanding their properties, that has enriched the repertoire of carbon-rich functional materials.
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Affiliation(s)
- Gabrielle A Leith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, 29208, USA.
| | - Natalia B Shustova
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, 29208, USA.
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6
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Steiner C, Fromm L, Gebhardt J, Liu Y, Heidenreich A, Hammer N, Görling A, Kivala M, Maier S. Host guest chemistry and supramolecular doping in triphenylamine-based covalent frameworks on Au(111). NANOSCALE 2021; 13:9798-9807. [PMID: 34028477 DOI: 10.1039/d0nr09140e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The post-synthetic modification of covalent organic frameworks (COFs) via host-guest chemistry is an important method to tailor their electronic properties for applications. Due to the limited structural control in the assembly of two-dimensional surface-supported COFs, supramolecular networks are traditionally used at present for host-guest experiments on surfaces, which lack structural and thermal stability, however. Here, we present a combined scanning tunneling microscopy and density functional theory study to understand the host-guest interaction in triphenylamine-based covalently-linked macrocycles and networks on Au(111). These triphenylamine-based structures feature carbonyl and hydrogen functionalized pores that create preferred adsorption sites for trimesic acid (TMA) and halogen atoms. The binding of the TMA through optimized hydrogen-bond interactions is corroborated by selective adsorption positions within the pores. Band structure calculations reveal that the strong intermolecular charge transfer through the TMA bonding reduces the band gap in the triphenylamine COFs, demonstrating the concept of supramolecular doping by host-guest interactions in surface-supported COFs. Halogen atoms selectively adsorb between two carbonyl groups at Au hollow sites. The mainly dispersive interaction of the halogens with the triphenylamine COF leads to a small downshift of the bands. Most of the halogens change their adsorption position selectively upon annealing near the desorption temperature. In conclusion, we demonstrate evidence for supramolecular doping via post-synthetic modification and to track chemical reactions in confined space.
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Affiliation(s)
- Christian Steiner
- Department of Physics, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany.
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7
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Mohammadifar E, Ahmadi V, Gholami MF, Oehrl A, Kolyvushko O, Nie C, Donskyi IS, Herziger S, Radnik J, Ludwig K, Böttcher C, Rabe JP, Osterrieder K, Azab W, Haag R, Adeli M. Graphene-Assisted Synthesis of 2D Polyglycerols as Innovative Platforms for Multivalent Virus Interactions. ADVANCED FUNCTIONAL MATERIALS 2021; 31:2009003. [PMID: 34230823 PMCID: PMC8250216 DOI: 10.1002/adfm.202009003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 02/08/2021] [Indexed: 05/12/2023]
Abstract
2D nanomaterials have garnered widespread attention in biomedicine and bioengineering due to their unique physicochemical properties. However, poor functionality, low solubility, intrinsic toxicity, and nonspecific interactions at biointerfaces have hampered their application in vivo. Here, biocompatible polyglycerol units are crosslinked in two dimensions using a graphene-assisted strategy leading to highly functional and water-soluble polyglycerols nanosheets with 263 ± 53 nm and 2.7 ± 0.2 nm average lateral size and thickness, respectively. A single-layer hyperbranched polyglycerol containing azide functional groups is covalently conjugated to the surface of a functional graphene template through pH-sensitive linkers. Then, lateral crosslinking of polyglycerol units is carried out by loading tripropargylamine on the surface of graphene followed by lifting off this reagent for an on-face click reaction. Subsequently, the polyglycerol nanosheets are detached from the surface of graphene by slight acidification and centrifugation and is sulfated to mimic heparin sulfate proteoglycans. To highlight the impact of the two-dimensionality of the synthesized polyglycerol sulfate nanosheets at nanobiointerfaces, their efficiency with respect to herpes simplex virus type 1 and severe acute respiratory syndrome corona virus 2 inhibition is compared to their 3D nanogel analogs. Four times stronger in virus inhibition suggests that 2D polyglycerols are superior to their current 3D counterparts.
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Affiliation(s)
- Ehsan Mohammadifar
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Vahid Ahmadi
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Mohammad Fardin Gholami
- Department of Physics and Integrative Research Institute for the Sciences IRIS AdlershofHumboldt‐Universität zu BerlinNewtonstrasse 15 and Zum Großen Windkanal 212489BerlinGermany
| | - Alexander Oehrl
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Oleksandr Kolyvushko
- Institut für VirologieRobert von Ostertag‐HausZentrum für InfektionsmedizinFreie Universität BerlinRobert‐von‐Ostertag‐Str. 7‐1314163BerlinGermany
| | - Chuanxiong Nie
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Ievgen S. Donskyi
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
- BAM – Federal Institute for Material Science and Testing Division of Surface Analysis, and Interfacial ChemistryUnter den Eichen 44‐4612205BerlinGermany
| | - Svenja Herziger
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMolInstitut für Chemie und Biochemie Freie Universität BerlinFabeckstrasse 36a14195BerlinGermany
| | - Jörg Radnik
- BAM – Federal Institute for Material Science and Testing Division of Surface Analysis, and Interfacial ChemistryUnter den Eichen 44‐4612205BerlinGermany
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMolInstitut für Chemie und Biochemie Freie Universität BerlinFabeckstrasse 36a14195BerlinGermany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMolInstitut für Chemie und Biochemie Freie Universität BerlinFabeckstrasse 36a14195BerlinGermany
| | - Jürgen P. Rabe
- Department of Physics and Integrative Research Institute for the Sciences IRIS AdlershofHumboldt‐Universität zu BerlinNewtonstrasse 15 and Zum Großen Windkanal 212489BerlinGermany
| | - Klaus Osterrieder
- Institut für VirologieRobert von Ostertag‐HausZentrum für InfektionsmedizinFreie Universität BerlinRobert‐von‐Ostertag‐Str. 7‐1314163BerlinGermany
- Department of Infectious Diseases and Public HealthJockey Club College of Veterinary Medicine and Life SciencesCity University of Hong KongKowloon TongHong Kong
| | - Walid Azab
- Institut für VirologieRobert von Ostertag‐HausZentrum für InfektionsmedizinFreie Universität BerlinRobert‐von‐Ostertag‐Str. 7‐1314163BerlinGermany
| | - Rainer Haag
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Mohsen Adeli
- Department of ChemistryFaculty of ScienceLorestan UniversityKhorramabadIran
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8
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Krug CK, Nieckarz D, Fan Q, Szabelski P, Gottfried JM. The Macrocycle versus Chain Competition in On-Surface Polymerization: Insights from Reactions of 1,3-Dibromoazulene on Cu(111). Chemistry 2020; 26:7647-7656. [PMID: 32031714 PMCID: PMC7318695 DOI: 10.1002/chem.202000486] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Indexed: 12/21/2022]
Abstract
Ring/chain competition in oligomerization reactions represents a long‐standing topic of synthetic chemistry and was treated extensively for solution reactions but is not well‐understood for the two‐dimensional confinement of surface reactions. Here, the kinetic and thermodynamic principles of ring/chain competition in on‐surface synthesis are addressed by scanning tunneling microscopy, X‐ray photoelectron spectroscopy, and Monte Carlo simulations applied to azulene‐based organometallic oligomers on Cu(111). Analysis of experiments and simulations reveals how the ring/chain ratio can be controlled through variation of coverage and temperature. At room temperature, non‐equilibrium conditions prevail and kinetic control leads to preferential formation of the entropically favored chains. In contrast, high‐temperature equilibrium conditions are associated with thermodynamic control, resulting in increased yields of the energetically favored rings. The optimum conditions for ring formation include the lowest possible temperature within the regime of thermodynamic control and a low coverage. The general implications are discussed and compared to the solution case.
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Affiliation(s)
- Claudio K Krug
- Department of Chemistry, Philipps University Marburg, Hans-Meerwein-Straße 4, 35032, Marburg, Germany
| | - Damian Nieckarz
- Department of Theoretical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University in Lublin, Pl. M.C. Skłodowskiej 3, Lublin, 20-031, Poland
| | - Qitang Fan
- Department of Chemistry, Philipps University Marburg, Hans-Meerwein-Straße 4, 35032, Marburg, Germany
| | - Paweł Szabelski
- Department of Theoretical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University in Lublin, Pl. M.C. Skłodowskiej 3, Lublin, 20-031, Poland
| | - J Michael Gottfried
- Department of Chemistry, Philipps University Marburg, Hans-Meerwein-Straße 4, 35032, Marburg, Germany
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9
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Cui D, Perepichka DF, MacLeod JM, Rosei F. Surface-confined single-layer covalent organic frameworks: design, synthesis and application. Chem Soc Rev 2020; 49:2020-2038. [DOI: 10.1039/c9cs00456d] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes the state of the art of surface-confined single-layer covalent organic frameworks, focusing on reticular design, synthesis approaches, and exploring applications in host/guest chemistry.
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Affiliation(s)
- Daling Cui
- Centre Énergie
- Matériaux et Télécommunications
- Institut National de la Recherche Scientifique
- Varennes
- Canada
| | | | - Jennifer M. MacLeod
- Centre Énergie
- Matériaux et Télécommunications
- Institut National de la Recherche Scientifique
- Varennes
- Canada
| | - Federico Rosei
- Centre Énergie
- Matériaux et Télécommunications
- Institut National de la Recherche Scientifique
- Varennes
- Canada
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10
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Cui D, MacLeod JM, Rosei F. Planar Anchoring of C 70 Liquid Crystals Using a Covalent Organic Framework Template. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1903294. [PMID: 31513362 DOI: 10.1002/smll.201903294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/12/2019] [Indexed: 06/10/2023]
Abstract
The surface-induced anchoring effect is a well-developed technique to control the growth of liquid crystals (LCs). Nevertheless, a defined nanometer-scale template has never been used to induce the anchored growth of LCs with molecular building units. Scanning tunneling microscopy results at the solid/liquid interface reveal that a 2D covalent organic framework (COF-1) can offer an anchoring effect to template C70 molecules into forming several LC mesophases, which cannot be obtained under other conditions. Through comparison with the C60 system, a stepwise breakdown in ordering of C70 LC is observed. The process is described in terms of the effects of molecular anisotropy on the epitaxial growth of molecular crystals. The results suggest that using a surface-confined template to anchor the initial layer of LC molecules can be a modular and potentially broadly applicable approach for organizing molecular mesogens into LCs.
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Affiliation(s)
- Daling Cui
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec, J3 × 1S2, Canada
| | - Jennifer M MacLeod
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec, J3 × 1S2, Canada
- School of Chemistry Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, 4000, QLD, Australia
| | - Federico Rosei
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boulevard Lionel-Boulet, Varennes, Québec, J3 × 1S2, Canada
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