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- Title
The interface electronic structure of thiol terminated molecules on cobalt and gold surfaces.
- Authors
Caruso, A. N.; Wang, L. G.; Jaswal, S. S.; Tsymbal, E. Y.; Dowben, P. A.
- Abstract
The bonding strength and interfacial electronic properties of biphenyldimethyldithiol (HS–CH2–C6H4–C6H4–CH2–SH) adsorbed on Au(111) and polycrystalline cobalt are identified from combined photoemission and inverse photoemission. In order to develop a better understanding of the thiol functional group to metal surface interaction, the stable orientation, bonding site, bonding strength and interfacial electronic properties of methylthiol (S–CH3) adsorbed on Au(111) and Co(0001) have been determined by ab initio density functional calculations. Both experiment and theory suggest that thiol bonding to cobalt surfaces is stronger compared to gold surfaces. The transfer of charge toward the adsorbed sulfur is greater for the thiols on cobalt than on gold.
- Subjects
ELECTRONIC structure; ATOMIC structure; BIPHENYL compounds; ATOMIC weights; CHEMICAL elements; POLYCRYSTALS; COBALT content in metals
- Publication
Journal of Materials Science, 2006, Vol 41, Issue 19, p6198
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-006-0362-7