Engineering two-dimensional supramolecular self-assembly: The role of Cl atoms

IF 5.9 3区材料科学 Q2 CHEMISTRY, PHYSICAL

FlatChem Pub Date : 2025-02-03 DOI:10.1016/j.flatc.2025.100808

Alisson Ceccatto , Gustavo Ramon Campi , Vanessa Carreño Diaz , Eidsa Brenda da Costa Ferreira , Natalie J. Waleska-Wellnhofer , Eva Marie Freiberger , Simon Jaekel , Christian Papp , Hans-Peter Steinrück , Duncan John Mowbray , Abner de Siervo

{"title":"Engineering two-dimensional supramolecular self-assembly: The role of Cl atoms","authors":"Alisson Ceccatto , Gustavo Ramon Campi , Vanessa Carreño Diaz , Eidsa Brenda da Costa Ferreira , Natalie J. Waleska-Wellnhofer , Eva Marie Freiberger , Simon Jaekel , Christian Papp , Hans-Peter Steinrück , Duncan John Mowbray , Abner de Siervo","doi":"10.1016/j.flatc.2025.100808","DOIUrl":null,"url":null,"abstract":"<div><div>On-surface synthesis is a powerful tool for engineering two-dimensional (2D) organic nanostructures by controlling intermolecular interactions between the building blocks. Herein, we explore the role of Cl adatoms in the synthesis and characterization of self-assembled 1,3,5-tris[4-(pyridin)-[1,1’-biphenyl]benzene (TPyPPB) networks on Ag(111), by combining scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT). In the absence of Cl, upon deposition at room temperature (RT), TPyPPB molecules form a highly ordered porous supramolecular network with triangular packing, stabilized by hydrogen bonds (N<span><math><mrow><mo>⋯</mo><mspace></mspace></mrow></math></span>H). In the presence of Cl adatoms, sublimated onto the surface using dichloro-(1,10-phenanthrolin)-platin(II) (Cl<sub>2</sub>PhPt) a second molecular precursor, we observe a so-called mixed phase or inverted packing, depending on the applied growth procedure. The mixed phase is characterized by a non-periodic structure stabilized by intermolecular interactions between TPyPPB, Cl<sub>2</sub>PhPt, and Cl. In contrast, when only Cl adatoms and TPyPPB are present on the Ag(111) surface, a non-porous supramolecular arrangement is obtained, stabilized by C–H<span><math><mrow><mo>⋯</mo><mspace></mspace></mrow></math></span>Cl hydrogen bonds.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"50 ","pages":"Article 100808"},"PeriodicalIF":5.9000,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"FlatChem","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452262725000029","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

On-surface synthesis is a powerful tool for engineering two-dimensional (2D) organic nanostructures by controlling intermolecular interactions between the building blocks. Herein, we explore the role of Cl adatoms in the synthesis and characterization of self-assembled 1,3,5-tris[4-(pyridin)-[1,1’-biphenyl]benzene (TPyPPB) networks on Ag(111), by combining scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT). In the absence of Cl, upon deposition at room temperature (RT), TPyPPB molecules form a highly ordered porous supramolecular network with triangular packing, stabilized by hydrogen bonds (N

\dots

H). In the presence of Cl adatoms, sublimated onto the surface using dichloro-(1,10-phenanthrolin)-platin(II) (Cl₂PhPt) a second molecular precursor, we observe a so-called mixed phase or inverted packing, depending on the applied growth procedure. The mixed phase is characterized by a non-periodic structure stabilized by intermolecular interactions between TPyPPB, Cl₂PhPt, and Cl. In contrast, when only Cl adatoms and TPyPPB are present on the Ag(111) surface, a non-porous supramolecular arrangement is obtained, stabilized by C–H

\dots

Cl hydrogen bonds.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

FlatChem Multiple-

CiteScore

8.40

自引率

6.50%

发文量

104

审稿时长

26 days

期刊介绍： FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)