de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch
 
Hilfe Wegweiser Impressum Kontakt Einloggen
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Molecules with multiple switching units on a Au(111) surface: self-organization and single-molecule manipulation

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons21880

Mielke,  Johannes
Physical Chemistry, Fritz Haber Institute, Max Planck Society;
Physics Department, Free University Berlin;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons21573

Grill,  Leonhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;
Physics Department, Free University Berlin;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Mielke, J., Selvanathan, S., Peters, M., Schwarz, J., Hecht, S., & Grill, L. (2012). Molecules with multiple switching units on a Au(111) surface: self-organization and single-molecule manipulation. Journal of Physics: Condensed Matter, 24(39): 394013. doi:10.1088/0953-8984/24/39/394013.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000E-A06C-7
Zusammenfassung
Three different molecules, each containing two azobenzene switching units, were synthesized, successfully deposited onto a Au(111) surface by sublimation and studied by scanning tunneling microscopy at low temperatures. To investigate the influence of electronic coupling between the switching units as well as to the surface, the two azo moieties were connected either via π-conjugated para-phenylene or decoupling meta-phenylene bridges, and the number of tert-butyl groups was varied in the meta-phenylene-linked derivatives. Single molecules were found to be intact after deposition as identified by their characteristic appearance in STM images. Due to their mobility on the Au(111) surface at room temperature, the molecules spontaneously formed self-organized molecular arrangements that reflected their chemical structure. While lateral displacement of the molecules was accomplished by manipulation, trans–cis isomerization processes, typical for azobenzene switches, could not be induced.