Abstract:
:The adsorption of heptahelicene, a helically shaped polyaromatic hydrocarbon (C(30)H(18)), on a Cu(111) surface was studied by means of thermal desorption mass spectrometry (TDMS) and low energy electron diffraction (LEED) at temperatures between 130-1,000 K under ultrahigh vacuum (UHV) conditions. The molecule in the monolayer remains intact up to 400 K. Above that temperature it decomposes in several steps into carbon and hydrogen, desorbing subsequently as H(2). In the saturated monolayer of the racemate the enantiomers are separated into two different domains on the surface which are mirror images of each other. After adsorption of one enantiomer only, no mirror domains were observed.
journal_name
Chiralityjournal_title
Chiralityauthors
Ernst KH,Kuster Y,Fasel R,Müller M,Ellerbeck Udoi
10.1002/chir.10006subject
Has Abstractpub_date
2001-01-01 00:00:00pages
675-8issue
10eissn
0899-0042issn
1520-636Xpii
10.1002/chir.10006journal_volume
13pub_type
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