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  1. AU="Steven De Feyter"
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  1. Artikel ; Online: Amplification of chirality in surface-confined supramolecular bilayers

    Hai Cao / Steven De Feyter

    Nature Communications, Vol 9, Iss 1, Pp 1-

    2018  Band 9

    Abstract: One of the most dramatic effects of supramolecular assembly is the generation of homochirality in near-racemic systems. Here the authors rationalize the chiral amplification mechanism with a combined scanning tunneling microscopy and modelling study of ... ...

    Abstract One of the most dramatic effects of supramolecular assembly is the generation of homochirality in near-racemic systems. Here the authors rationalize the chiral amplification mechanism with a combined scanning tunneling microscopy and modelling study of surface-grown enantiomerically unbalanced supramolecular bilayers.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2018-08-01T00:00:00Z
    Verlag Nature Publishing Group
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Amplification of chirality in surface-confined supramolecular bilayers

    Hai Cao / Steven De Feyter

    Nature Communications, Vol 9, Iss 1, Pp 1-

    2018  Band 9

    Abstract: One of the most dramatic effects of supramolecular assembly is the generation of homochirality in near-racemic systems. Here the authors rationalize the chiral amplification mechanism with a combined scanning tunneling microscopy and modelling study of ... ...

    Abstract One of the most dramatic effects of supramolecular assembly is the generation of homochirality in near-racemic systems. Here the authors rationalize the chiral amplification mechanism with a combined scanning tunneling microscopy and modelling study of surface-grown enantiomerically unbalanced supramolecular bilayers.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2018-08-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Growth of a self-assembled monolayer decoupled from the substrate

    Robby Reynaerts / Kunal S. Mali / Steven De Feyter

    Beilstein Journal of Nanotechnology, Vol 11, Iss 1, Pp 1291-

    nucleation on-command using buffer layers

    2020  Band 1302

    Abstract: Structural polymorphism is ubiquitous in physisorbed self-assembled monolayers formed at the solution–solid interface. One of the ways to influence network formation at this interface is to physically decouple the self-assembled monolayer from the ... ...

    Abstract Structural polymorphism is ubiquitous in physisorbed self-assembled monolayers formed at the solution–solid interface. One of the ways to influence network formation at this interface is to physically decouple the self-assembled monolayer from the underlying substrate thereby removing the influence of the substrate lattice, if any. Here we show a systematic exploration of self-assembly of a typical building block, namely 4-tetradecyloxybenzoic acid at the 1-phenyloctane–graphite interface in the presence and in the absence of a buffer layer formed by a long chain alkane, namely n-pentacontane. Using scanning tunneling microscopy (STM), three different structural polymorphs were identified for 4-tetradecyloxybenzoic acid at the 1-phenyloctane–graphite interface. Surprisingly, the same three structures were formed on top of the buffer layer, albeit at different concentrations. Systematic variation of experimental parameters did not lead to any new network in the presence of the buffer layer. We discovered that the self-assembly on top of the buffer layer allows better control over the nanoscale manipulation of the self-assembled networks. Using the influence of the STM tip, we could initiate the nucleation of small isolated domains of the benzoic acid on-command in a reproducible fashion. Such controlled nucleation experiments hold promise for studying fundamental processes inherent to the assembly process on surfaces.
    Schlagwörter benzoic acid ; nucleation ; self-assembly ; solution–solid interface ; substrate effect ; Technology ; T ; Chemical technology ; TP1-1185 ; Science ; Q ; Physics ; QC1-999
    Thema/Rubrik (Code) 620
    Sprache Englisch
    Erscheinungsdatum 2020-09-01T00:00:00Z
    Verlag Beilstein-Institut
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel ; Online: Spectroscopic Characterization of Thiacarbocyanine Dye Molecules Adsorbed on Hexagonal Boron Nitride

    Anne-Charlotte Nellissen / Eduard Fron / Jonathan B. F. Vandenwijngaerden / Steven De Feyter / Stijn F. L. Mertens / Mark Van der Auweraer

    ACS Omega, Vol 8, Iss 39, Pp 35638-

    a Time-Resolved Study

    2023  Band 35652

    Schlagwörter Chemistry ; QD1-999
    Sprache Englisch
    Erscheinungsdatum 2023-09-01T00:00:00Z
    Verlag American Chemical Society
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Artikel ; Online: Grafting Ink for Direct Writing

    Yuanzhi Xia / Li Sun / Samuel Eyley / Brent Daelemans / Wim Thielemans / Johannes Seibel / Steven De Feyter

    Advanced Science, Vol 9, Iss 19, Pp n/a-n/a (2022)

    Solvation Activated Covalent Functionalization of Graphene

    2022  

    Abstract: Abstract Covalent functionalization of graphene (CFG) has shown attractive advantages in tuning the electronic, mechanical, optical, and thermal properties of graphene. However, facile, large‐scale, controllable, and highly efficient CFG remains ... ...

    Abstract Abstract Covalent functionalization of graphene (CFG) has shown attractive advantages in tuning the electronic, mechanical, optical, and thermal properties of graphene. However, facile, large‐scale, controllable, and highly efficient CFG remains challenging and often involves highly reactive and volatile compounds, requiring complex control of the reaction conditions. Here, a diazonium‐based grafting ink consisting of only two components, i.e., an aryl diazonium salt and the solvent dimethyl sulfoxide (DMSO) is presented. The efficient functionalization is attributed to the combination of the solvation of the diazonium cations by DMSO and n‐doping of graphene by DMSO, thereby promoting electron transfer (ET) from graphene to the diazonium cations, resulting in the generation of aryl radicals which subsequently react with the graphene. The grafting density of CFG is controlled by the reaction time and very high levels of functionalization, up to the failing of the Tuinstra–Koenig (T–K) relation, while the functionalization layer remains at monolayer height. The grafting ink, effective for days at room temperature, can be used at ambient conditions and renders the patterning CFG by direct writing as easy as writing on paper. In combination with thermal sample treatment, reversible functionalization is possible by subsequent writing/erasing cycles.
    Schlagwörter covalent functionalization of graphene ; grafting ink ; solvation ; electron transfer ; direct writing ; graphene patterning ; Science ; Q
    Thema/Rubrik (Code) 541
    Sprache Englisch
    Erscheinungsdatum 2022-07-01T00:00:00Z
    Verlag Wiley
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Artikel ; Online: Halogen Bonding in Two‐Dimensional Crystal Engineering

    Dr. Joan Teyssandier / Dr. Kunal S. Mali / Prof. Steven De Feyter

    ChemistryOpen, Vol 9, Iss 2, Pp 225-

    2020  Band 241

    Abstract: Abstract Halogen bonds, which provide an intermolecular interaction with moderate strength and high directionality, have emerged as a promising tool in the repertoire of non‐covalent interactions. In this review, we provide a survey of the literature ... ...

    Abstract Abstract Halogen bonds, which provide an intermolecular interaction with moderate strength and high directionality, have emerged as a promising tool in the repertoire of non‐covalent interactions. In this review, we provide a survey of the literature where halogen bonding was used for the fabrication of supramolecular networks on solid surfaces. The definitions of, and the distinction between halogen bonding and halogen‐halogen interactions are provided. Self‐assembled networks formed at the solution/solid interface and at the vacuum‐solid interface, stabilized in part by halogen bonding, are discussed. Besides the broad classification based on the interface at which the systems are studied, the systems are categorized further as those sustained by halogen‐halogen and halogen‐heteroatom contacts.
    Schlagwörter halogen bonding ; halogen-halogen interactions ; 2D crystal engineering ; scanning tunneling microscopy ; self-assembly ; Chemistry ; QD1-999
    Sprache Englisch
    Erscheinungsdatum 2020-02-01T00:00:00Z
    Verlag Wiley-VCH
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Artikel ; Online: Tailoring atomic layer growth at the liquid-metal interface

    Hai Cao / Deepali Waghray / Stefan Knoppe / Wim Dehaen / Thierry Verbiest / Steven De Feyter

    Nature Communications, Vol 9, Iss 1, Pp 1-

    2018  Band 10

    Abstract: Ultrathin metallic films are most often fabricated by atomic or molecular beam epitaxy under ultrahigh vacuum conditions, where it is difficult to control deposition and growth. Here, the authors describe a wet deposition method, using solution-borne ... ...

    Abstract Ultrathin metallic films are most often fabricated by atomic or molecular beam epitaxy under ultrahigh vacuum conditions, where it is difficult to control deposition and growth. Here, the authors describe a wet deposition method, using solution-borne gold nanocluster precursors, to regulate growth of atomically flat gold nanoislands on a surface.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2018-11-01T00:00:00Z
    Verlag Nature Publishing Group
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  8. Artikel ; Online: Tailoring atomic layer growth at the liquid-metal interface

    Hai Cao / Deepali Waghray / Stefan Knoppe / Wim Dehaen / Thierry Verbiest / Steven De Feyter

    Nature Communications, Vol 9, Iss 1, Pp 1-

    2018  Band 10

    Abstract: Ultrathin metallic films are most often fabricated by atomic or molecular beam epitaxy under ultrahigh vacuum conditions, where it is difficult to control deposition and growth. Here, the authors describe a wet deposition method, using solution-borne ... ...

    Abstract Ultrathin metallic films are most often fabricated by atomic or molecular beam epitaxy under ultrahigh vacuum conditions, where it is difficult to control deposition and growth. Here, the authors describe a wet deposition method, using solution-borne gold nanocluster precursors, to regulate growth of atomically flat gold nanoislands on a surface.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2018-11-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  9. Artikel: Biasing Enantiomorph Formation via Geometric Confinement: Nanocorrals for Chiral Induction at the Liquid–Solid Interface

    Seibel, Johannes / Lander Verstraete / Brandon E. Hirsch / Ana M. Bragança / Steven De Feyter

    Journal of the American Chemical Society. 2018 Aug. 31, v. 140, no. 37

    2018  

    Abstract: Nanocorrals created by scanning probe lithography on covalently modified graphite surfaces are used to induce a chiral bias in the enantiomorphic assembly of a prochiral molecule at the liquid/graphite interface. By controlling the orientation of the ... ...

    Abstract Nanocorrals created by scanning probe lithography on covalently modified graphite surfaces are used to induce a chiral bias in the enantiomorphic assembly of a prochiral molecule at the liquid/graphite interface. By controlling the orientation of the nanocorrals with respect to the underlying graphite surface, the nanocorral handedness can be freely chosen and thus a chiral bias in molecular self-assembly is created at an achiral surface solely by the scanning probe lithography process.
    Schlagwörter chemical bonding ; geometry ; graphene ; liquid-solid interface ; liquids
    Sprache Englisch
    Erscheinungsverlauf 2018-0831
    Umfang p. 11565-11568.
    Erscheinungsort American Chemical Society
    Dokumenttyp Artikel
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.8b04992
    Datenquelle NAL Katalog (AGRICOLA)

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  10. Artikel: Structural Insights into the Mechanism of Chiral Recognition and Chirality Transfer in Host–Guest Assemblies at the Liquid–Solid Interface

    Fang, Yuan / Kazukuni Tahara / Oleksandr Ivasenko / Steven De Feyter / Yoshito Tobe

    Journal of physical chemistry. 2018 Apr. 06, v. 122, no. 15

    2018  

    Abstract: Understanding structure–efficiency relationships in chiral recognition and chirality transfer constitutes an important step toward the rational design of improved chiral probes and chirality auxiliaries or inducers. Recently discovered enantioselective ... ...

    Abstract Understanding structure–efficiency relationships in chiral recognition and chirality transfer constitutes an important step toward the rational design of improved chiral probes and chirality auxiliaries or inducers. Recently discovered enantioselective host–guest adsorption opened a new pathway toward the enantioselective reconstruction of on-surface monolayers. In this study, we explored the importance of size matching between host cavity and chiral guest for the efficiency of chiral recognition and subsequent chirality induction in the initially racemic host.
    Schlagwörter adsorption ; enantioselectivity ; liquid-solid interface ; optical isomerism
    Sprache Englisch
    Erscheinungsverlauf 2018-0406
    Umfang p. 8228-8235.
    Erscheinungsort American Chemical Society
    Dokumenttyp Artikel
    ISSN 1932-7455
    DOI 10.1021/acs.jpcc.7b11717
    Datenquelle NAL Katalog (AGRICOLA)

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