Loading...
research article
Synthesis, Properties, and Two-Dimensional Adsorption Characteristics of 5-Amino[6]hexahelicene
A convergent synthesis of racemic 5-amino[6]hexahelicene is described. Cross-coupling reactions are used to assemble a pentacyclic framework, and a metal-catalyzed ring-closure comprises the final step. The enantiomers were separated by means of chromatography and the absolute configurations were assigned by comparison of the CD spectra with hexahelicene. The t(1/2) value for racemization at 210 degrees C was approximately 1 hour. Scanning tunneling microscopy (STM) measurements were carried out on enantiopure and racemic samples of aminohelicene on Au(111) under ultrahigh vacuum (UHV) conditions.
Type
research article
Web of Science ID
WOS:000368922500038
Authors
Van Der Meijden, Maarten W.
•
Gelens, Edith
•
Murillo Quiros, Natalia
•
Fuhr, Javier D.
•
Gayone, J. Esteban
•
Ascolani, Hugo
•
Wurst, Klaus
•
•
Kellogg, Richard M.
Publication date
2016
Publisher
Published in
Volume
22
Issue
4
Start page
1484
End page
1492
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
April 1, 2016
Use this identifier to reference this record