Switching the on-surface orientation of oxygen-functionalized helicene.
- Resource Type
- Academic Journal
- Authors
- Voigt J; Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland.; Hasan M; Department of Chemistry, University of Mumbai, Mumbai, India.; Wäckerlin C; Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland.; Institute of Physics, Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland.; Laboratory for X-ray Nanoscience and Technologies, Paul-Scherrer-Institut (PSI), Villigen, Switzerland.; Karnik AV; Department of Chemistry, University of Mumbai, Mumbai, India.; Ernst KH; Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland.; Department of Chemistry, University of Zurich, Zürich, Switzerland.; Nanosurf Lab, Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic.
- Source
- Publisher: Wiley Country of Publication: United States NLM ID: 8914261 Publication Model: Print Cited Medium: Internet ISSN: 1520-636X (Electronic) Linking ISSN: 08990042 NLM ISO Abbreviation: Chirality Subsets: PubMed not MEDLINE; MEDLINE
- Subject
- Language
- English
Helicenes represent an important class of chiral organic material with promising optoelectronic properties. Hence, functionalization of surfaces with helicenes is a key step toward new organic materials devices. The deposition of a heterohelicene containing two furano groups and two hydroxyl groups onto copper(111) surface in ultrahigh vacuum leads to different adsorbate modifications. At low coverage and low temperature, the molecules tend to lie on the surface in order to maximize van der Waals contact with the substrate. Thermal treatment leads to deprotonation of the hydroxyl groups and in part into a reorientation from lying into a standing adsorbate mode.
(© 2024 The Authors. Chirality published by Wiley Periodicals LLC.)