Switching the on-surface orientation of oxygen-functionalized helicene
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.|With increasing coverage and temperature, oxygen-functionalized helicenes switch their adsorbate mode on a copper surface.image
WOS:001144219900001
2024-02-01
36
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e23642
REVIEWED
Funder | Grant Number |
Swiss National Science Foundation | |
Department of Science and Technology, Ministry of Science and Technology, India | |
UGC | |
Fyzikalni ustav Akademie ved Ceske republiky, as part of the Wiley - CzechELib | |
SR/S1/OC-02/2007 | |