1
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Hu T, Minoia A, Velpula G, Ryskulova K, Van Hecke K, Lazzaroni R, Mali KS, Hoogenboom R, De Feyter S. From One-Dimensional Disordered Racemate to Ordered Racemic Conglomerates through Metal-Coordination-Driven Self-Assembly at the Liquid-Solid Interface. Chemistry 2024; 30:e202302545. [PMID: 37840008 DOI: 10.1002/chem.202302545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/17/2023]
Abstract
In recent years, there has been significant focus on investigating and controlling chiral self-assembly, specifically in the context of enantiomeric separation. This study explores the self-assembly behavior of 4-dodecyl-3,6-di(2-pyridyl)pyridazine (DPP-C12) at the interface between heptanoic acid (HA) and highly oriented pyrolytic graphite (HOPG) using a combination of scanning tunneling microscopy (STM) and multiscale molecular modeling. The self-assembled monolayer structure formed by DPP-C12 is periodic in one direction, but aperiodic in the direction orthogonal to it. These structures resemble 1D disordered racemic compounds. Upon introducing palladium [Pd(II)] ions, complexing with DPP-C12, these 1D disordered racemic compounds spontaneously transform into 2D racemic conglomerates, which is rationalized with the assistance of force-field simulations. Our findings provide insights into the regulation of two-dimensional chirality.
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Affiliation(s)
- Tianze Hu
- KU Leuven, Division of Molecular Imaging and Photonics, Department of Chemistry, 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
| | - Gangamallaiah Velpula
- KU Leuven, Division of Molecular Imaging and Photonics, Department of Chemistry, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Kanykei Ryskulova
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000, Ghent, Belgium
| | - Kristof Van Hecke
- XStruct, Department of Chemistry, Ghent University, Krijgslaan 281 S3, 9000, Ghent, Belgium
| | - Roberto Lazzaroni
- Laboratory for Chemistry of Novel Materials, Materials Research Institute, University of Mons, Place du Parc 20, 7000, Mons, Belgium
| | - Kunal S Mali
- KU Leuven, Division of Molecular Imaging and Photonics, Department of Chemistry, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000, Ghent, Belgium
| | - Steven De Feyter
- KU Leuven, Division of Molecular Imaging and Photonics, Department of Chemistry, Celestijnenlaan 200F, 3001, Leuven, Belgium
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2
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Liu S, Norikane Y, Kikkawa Y. Two-dimensional molecular networks at the solid/liquid interface and the role of alkyl chains in their building blocks. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2023; 14:872-892. [PMID: 37674543 PMCID: PMC10477993 DOI: 10.3762/bjnano.14.72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 07/25/2023] [Indexed: 09/08/2023]
Abstract
Nanoarchitectonics has attracted increasing attention owing to its potential applications in nanomachines, nanoelectronics, catalysis, and nanopatterning, which can contribute to overcoming global problems related to energy and environment, among others. However, the fabrication of ordered nanoarchitectures remains a challenge, even in two dimensions. Therefore, a deeper understanding of the self-assembly processes and substantial factors for building ordered structures is critical for tailoring flexible and desirable nanoarchitectures. Scanning tunneling microscopy is a powerful tool for revealing the molecular conformations, arrangements, and orientations of two-dimensional (2D) networks on surfaces. The fabrication of 2D assemblies involves non-covalent interactions that play a significant role in the molecular arrangement and orientation. Among the non-covalent interactions, dispersion interactions that derive from alkyl chain units are believed to be weak. However, alkyl chains play an important role in the adsorption onto substrates, as well as in the in-plane intermolecular interactions. In this review, we focus on the role of alkyl chains in the formation of ordered 2D assemblies at the solid/liquid interface. The alkyl chain effects on the 2D assemblies are introduced together with examples documented in the past decades.
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Affiliation(s)
- Suyi Liu
- Graduate School of Science and Technology, University of Tsukuba, Ibaraki, 305-8571, Japan
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Yasuo Norikane
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Faculty of Pure and Applied Sciences, University of Tsukuba, Ibaraki, 305-8571, Japan
| | - Yoshihiro Kikkawa
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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3
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Boulet I, Pascal S, Bedu F, Ozerov I, Ranguis A, Leoni T, Becker C, Masson L, Matkovic A, Teichert C, Siri O, Attaccalite C, Huntzinger JR, Paillet M, Zahab A, Parret R. Electrical monitoring of organic crystal phase transition using MoS 2 field effect transistor. NANOSCALE ADVANCES 2023; 5:1681-1690. [PMID: 36926560 PMCID: PMC10012849 DOI: 10.1039/d2na00817c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
Hybrid van der Waals heterostructures made of 2D materials and organic molecules exploit the high sensitivity of 2D materials to all interfacial modifications and the inherent versatility of the organic compounds. In this study, we are interested in the quinoidal zwitterion/MoS2 hybrid system in which organic crystals are grown by epitaxy on the MoS2 surface and reorganize in another polymorph after thermal annealing. By means of field-effect transistor measurements recorded in situ all along the process, atomic force microscopy and density functional theory calculations we demonstrate that the charge transfer between quinoidal zwitterions and MoS2 strongly depends on the conformation of the molecular film. Remarkably, both the field effect mobility and the current modulation depth of the transistors remain unchanged which opens up promising prospects for efficient devices based on this hybrid system. We also show that MoS2 transistors enable fast and accurate detection of structural modifications that occur during phases transitions of the organic layer. This work highlights that MoS2 transistors are remarkable tools for on-chip detection of molecular events occurring at the nanoscale, which paves the way for the investigation of other dynamical systems.
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Affiliation(s)
- Ilan Boulet
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | - Simon Pascal
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | - Frederic Bedu
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | - Igor Ozerov
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | - Alain Ranguis
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | - Thomas Leoni
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | - Conrad Becker
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | - Laurence Masson
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | | | | | - Olivier Siri
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | - Claudio Attaccalite
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
| | - Jean-Roch Huntzinger
- Laboratoire Charles Coulomb, UMR 221, Univ. Montpellier, CNRS Montpellier France
| | - Matthieu Paillet
- Laboratoire Charles Coulomb, UMR 221, Univ. Montpellier, CNRS Montpellier France
| | - Ahmed Zahab
- Laboratoire Charles Coulomb, UMR 221, Univ. Montpellier, CNRS Montpellier France
| | - Romain Parret
- Aix Marseille Université, CNRS, CINAM, UMR 7325 Campus de Luminy 13288 Marseille France romain.parret@.univ-amu.fr +33 6 62922867
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4
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Kikkawa Y, Nagasaki M, Norikane Y. Two-dimensional self-assemblies of azobenzene derivatives: effects of methyl substitution of azobenzene core and alkyl chain length. Phys Chem Chem Phys 2022; 24:29757-29764. [PMID: 36458744 DOI: 10.1039/d2cp05097h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Elucidating the correlation between the molecular arrangement and physical properties of organic compounds is critical to facilitating the development of advanced functional materials. X-ray structural analyses are generally performed to clarify this relationship. Several attempts have been made to ascertain the links between three-dimensional (3D) crystals and their two-dimensional (2D) structures, which can be revealed by scanning tunnelling microscopy (STM) at the molecular level. Thus, 2D self-assemblies of a series of azobenzene derivatives were investigated in this study, and the effects of methyl substitution of the azobenzene core and alkyl chain length on the 2D molecular arrangements at the solid/liquid interface were revealed. Three types of azobenzene derivatives were prepared; these contained azobenzene (Az), 3-methyl azobenzene (MAz), or 3,3'-dimethyl azobenzene (DAz) as cores and alkyloxy chains of different lengths (C8-13) at their 4,4' positions. The 2D structures of the Az and DAz compounds were found to be modulated owing to the odd-even effect of the alkyl chains in a specific chain-length range; this effect was only weakly exhibited by the MAz compounds. This result suggests that only the methyl-group substitution of the azobenzene core significantly affected the 2D structures. The 2D structural features have been discussed in terms of molecular conformation, as well as their correlation with the photo-melting behaviour of the azobenzene derivatives, particularly the MAz compounds.
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Affiliation(s)
- Yoshihiro Kikkawa
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Mayumi Nagasaki
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Yasuo Norikane
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
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5
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Van Hoof M, Bynens L, Daelemans B, González MCR, Van Meervelt L, De Feyter S, Dehaen W. Octahydropyrimido[4,5- g]quinazoline-5,10-diones: their multicomponent synthesis, self-assembly on graphite and electrochemistry. Chem Commun (Camb) 2022; 58:7686-7689. [PMID: 35730551 DOI: 10.1039/d2cc02070j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A green multicomponent synthesis of previously unreported octahydropyrimido[4,5-g]quinazoline-5,6-diones was developed from simple building blocks. These highly symmetrical compounds show strong propensity to self-assembled molecular network (SAMN) formation on highly oriented pyrolytic graphite. The SAMN type is easily tunable by changing molecular characteristics. The redox behavior was studied by cyclic voltammetery.
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Affiliation(s)
- Max Van Hoof
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
| | - Lize Bynens
- Hasselt University, Institute for Materials Research (IMO), Agoralaan Building D, 3590, Diepenbeek, Belgium
| | - Brent Daelemans
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
| | | | - Luc Van Meervelt
- Biomolecular Architecture, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven B-3001, Belgium.
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
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6
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Alić J, Biljan I, Štefanić Z, Šekutor M. Preparation and characterization of non-aromatic ether self-assemblies on a HOPG surface. NANOTECHNOLOGY 2022; 33:355603. [PMID: 35545006 DOI: 10.1088/1361-6528/ac6e72] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
On-surface self-assemblies of aromatic organic molecules have been widely investigated, but the characterization of analogous self-assemblies consisting of fully sp3-hybridized molecules remains challenging. The possible on-surface orientations of alkyl molecules not exclusively comprised of long alkyl chains are difficult to distinguish because of their inherently low symmetry and non-planar nature. Here, we present a detailed study of diamondoid ethers, structurally rigid and fully saturated molecules, which form uniform 2D monolayers on a highly oriented pyrolytic graphite (HOPG) surface. Using scanning tunneling microscopy, various computational tools, and x-ray structural analysis, we identified the most favorable on-surface orientations of these rigid ethers and accounted for the forces driving the self-organization process. The influence of the oxygen atom and London dispersion interactions were found to be responsible for the formation of the observed highly ordered 2D ether assemblies. Our findings provide insight into the on-surface properties and behavior of non-aromatic organic compounds and broaden our understanding of the phenomena characteristic of monolayers consisting of non-planar molecules.
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Affiliation(s)
- Jasna Alić
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia
| | - Ivana Biljan
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
| | - Zoran Štefanić
- Department of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia
| | - Marina Šekutor
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia
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7
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Kikkawa Y, Nagasaki M, Tsuzuki S, Fouquet TNJ, Nakamura S, Takenaka Y, Norikane Y, Hiratani K. Well-organised two-dimensional self-assembly controlled by in situ formation of a Cu(II)-coordinated rufigallol derivative: a scanning tunnelling microscopy study. Chem Commun (Camb) 2022; 58:1752-1755. [PMID: 35029616 DOI: 10.1039/d1cc05991b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The two-dimensional self-assembly of rufigallol derivatives and their metal coordination were studied by scanning tunnelling microscopy. Ex situ Cu(II)-coordinated rufigallol derivatives exhibited columnar structures with some defects, whereas regular and linear structures were formed upon in situ metal coordination at solid/liquid interfaces.
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Affiliation(s)
- Yoshihiro Kikkawa
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Mayumi Nagasaki
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Seiji Tsuzuki
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Thierry N J Fouquet
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Sayaka Nakamura
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Yasumasa Takenaka
- Bioplastic Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yasuo Norikane
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Kazuhisa Hiratani
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
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8
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Daelemans B, Eyley S, Marquez C, Lemmens V, De Vos DE, Thielemans W, Dehaen W, De Feyter S. Adsorptive separation using self-assembly on graphite: from nanoscale to bulk processes. Chem Sci 2022; 13:9035-9046. [PMID: 36091218 PMCID: PMC9365087 DOI: 10.1039/d2sc01354a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/07/2022] [Indexed: 11/21/2022] Open
Abstract
Insights from high-resolution on-surface characterization techniques are used to improve the control over adsorption and desorption on graphite in bulk adsorptive separation processes.
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Affiliation(s)
- Brent Daelemans
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
- Division of Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Samuel Eyley
- Sustainable Materials Lab, Department of Chemical Engineering, KU Leuven, Campus Kulak Kortrijk, E. Sabbelaan 53, 8500 Kortrijk, Belgium
| | - Carlos Marquez
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Vincent Lemmens
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Dirk E. De Vos
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Wim Thielemans
- Sustainable Materials Lab, Department of Chemical Engineering, KU Leuven, Campus Kulak Kortrijk, E. Sabbelaan 53, 8500 Kortrijk, Belgium
| | - Wim Dehaen
- Division of Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
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9
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Kikkawa Y, Nagasaki M, Koyama E, Ito S, Tsuzuki S. Halogen bond-directed self-assembly in bicomponent blends at the solid/liquid interface: Effect of the alkyl chain substitution position. Phys Chem Chem Phys 2022; 24:17088-17097. [DOI: 10.1039/d2cp02206k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The fabrication of well-organised molecular assemblies on surfaces is fundamental for the creation of functional molecular systems applicable to nanoelectronics and molecular devices. In this study, we investigated the effect...
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10
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Berrocal JA, Heideman GH, de Waal BFM, Enache M, Havenith RWA, Stöhr M, Meijer EW, Feringa BL. Engineering Long-Range Order in Supramolecular Assemblies on Surfaces: The Paramount Role of Internal Double Bonds in Discrete Long-Chain Naphthalenediimides. J Am Chem Soc 2020; 142:4070-4078. [PMID: 31971383 PMCID: PMC7047225 DOI: 10.1021/jacs.0c00765] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
![]()
Achieving
long-range order with surface-supported supramolecular
assemblies is one of the pressing challenges in the prospering field
of non-covalent surface functionalization. Having access to defect-free
on-surface molecular assemblies will pave the way for various nanotechnology
applications. Here we report the synthesis of two libraries of naphthalenediimides
(NDIs) symmetrically functionalized with long aliphatic chains (C28 and C33) and their self-assembly at the 1-phenyloctane/highly
oriented pyrolytic graphite (1-PO/HOPG) interface. The two NDI libraries
differ by the presence/absence of an internal double bond in each
aliphatic chain (unsaturated and saturated compounds, respectively).
All molecules assemble into lamellar arrangements, with the NDI cores
lying flat and forming 1D rows on the surface, while the carbon chains
separate the 1D rows from each other. Importantly, the presence of
the unsaturation plays a dominant role in the arrangement of the aliphatic
chains, as it exclusively favors interdigitation. The fully saturated
tails, instead, self-assemble into a combination of either interdigitated
or non-interdigitated diagonal arrangements. This difference in packing
is spectacularly amplified at the whole surface level and results
in almost defect-free self-assembled monolayers for the unsaturated
compounds. In contrast, the monolayers of the saturated counterparts
are globally disordered, even though they locally preserve the lamellar arrangements. The experimental
observations are supported by computational studies and are rationalized
in terms of stronger van der Waals interactions in the case of the
unsaturated compounds. Our investigation reveals the paramount role
played by internal double bonds on the self-assembly of discrete large
molecules at the liquid/solid interface.
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Affiliation(s)
- José Augusto Berrocal
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands.,Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry , Eindhoven University of Technology , 5600 MB Eindhoven , The Netherlands
| | - G Henrieke Heideman
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Bas F M de Waal
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry , Eindhoven University of Technology , 5600 MB Eindhoven , The Netherlands
| | - Mihaela Enache
- Zernike Institute for Advanced Materials , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Remco W A Havenith
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands.,Zernike Institute for Advanced Materials , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands.,Department of Inorganic and Physical Chemistry , Ghent University , Krijgslaan 281 (S3) , B-9000 Gent , Belgium
| | - Meike Stöhr
- Zernike Institute for Advanced Materials , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - E W Meijer
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry , Eindhoven University of Technology , 5600 MB Eindhoven , The Netherlands
| | - Ben L Feringa
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands.,Zernike Institute for Advanced Materials , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
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11
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Mulay SV, Dishi O, Fang Y, Niazi MR, Shimon LJW, Perepichka DF, Gidron O. A macrocyclic oligofuran: synthesis, solid state structure and electronic properties. Chem Sci 2019; 10:8527-8532. [PMID: 32055302 PMCID: PMC7003964 DOI: 10.1039/c9sc03247a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 08/19/2019] [Indexed: 11/27/2022] Open
Abstract
The first π-conjugated macrocyclic system with an oligofuran backbone display planar conformation and forms large π-aggregates, in contrast to the twisted conformation of small macrocyclic oligothiophenes.
We report the first π-conjugated macrocyclic system with an oligofuran backbone. The calculated HOMO–LUMO gap is similar to that of the corresponding linear polymer, indicating a remarkable electron delocalization. The X-ray structure reveals a planar conformation, in contrast to the twisted conformation of macrocyclic oligothiophenes. The intermolecular π–π stacking distance is extremely small (3.17 Å), indicating very strong interactions. The macrocycle forms large π-aggregates in solution and shows a tendency toward highly ordered multilayer adsorption at the solid–liquid interface. The face-on orientation of molecules explains the higher hole mobility observed in the out-of-plane direction.
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Affiliation(s)
- Sandip V Mulay
- Institute of Chemistry , The Hebrew University of Jerusalem , Edmond J. Safra Campus , Jerusalem , Israel .
| | - Or Dishi
- Institute of Chemistry , The Hebrew University of Jerusalem , Edmond J. Safra Campus , Jerusalem , Israel .
| | - Yuan Fang
- Department of Chemistry , McGill University , Montreal , QC H3A 0B8 , Canada .
| | - Muhammad R Niazi
- Department of Chemistry , McGill University , Montreal , QC H3A 0B8 , Canada .
| | - Linda J W Shimon
- Chemical Research Support Unit , Weizmann Institute of Science , Rehovot , Israel
| | | | - Ori Gidron
- Institute of Chemistry , The Hebrew University of Jerusalem , Edmond J. Safra Campus , Jerusalem , Israel .
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12
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Behyan S, Gritzalis D, Schmidt R, Kebede E, Cuccia LA, DeWolf C. Structural organization and phase behaviour of meta-substituted dioctadecylaminobenzoquinones at the air/water interface. Phys Chem Chem Phys 2019; 21:2345-2350. [PMID: 30657501 DOI: 10.1039/c8cp07186a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structural organization and phase behaviour of an amphiphilic zwitterionic quinonemonoimine at the air/water interface are presented. Brewster angle microscopy reveals multiple co-existing phases are observed over the entire isotherm while grazing incidence X-ray diffraction (GIXD) shows that these comprise both tilted, untilted and multilayer structures with crystalline headgroups. Despite the heterogeneity, the phase transitions are highly reversible over multiple cycles.
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Affiliation(s)
- Shirin Behyan
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, Concordia University, 7141 Sherbrooke St. West, Montréal, QC H4B 1R6, Canada.
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Davis TC, Russell SR, Claridge SA. Edge-on adsorption of multi-chain functional alkanes stabilizes noncovalent monolayers on MoS2. Chem Commun (Camb) 2018; 54:11709-11712. [PMID: 30280726 DOI: 10.1039/c8cc06466k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Diyne phospholipids adsorb edge-on on MoS2, producing stable monolayers with large, ordered domains, despite low alkane adsorption enthalpies on MoS2.
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Affiliation(s)
- T. C. Davis
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
| | - S. R. Russell
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
| | - S. A. Claridge
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
- Weldon School of Biomedical Engineering
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