Open AccessNEXAFS study of 1‐butanethiol adsorbed on Cu(111) and × R19.1° S/Cu(111)
Author(s) -
Yang Y. W.,
Venkatesh S.,
Fan L. J.,
Dann T. E.,
Lai L. J.
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049500016782
Subject(s) - xanes , adsorption , desorption , chemistry , chemisorption , crystallography , spectroscopy , thermal desorption , analytical chemistry (journal) , physics , organic chemistry , quantum mechanics
The adsorption of 1‐butanethiol on Cu(111) and × R19.1° S/Cu(111) surfaces has been studied by S K ‐edge near edge x‐ray absorption fine structure (NEXAFS) spectroscopy and thermal desorption spectroscopy. Upon adsorption on clean Cu(111) surface at room temperature, butanethiolate as well as atomic sulfur is formed. For the butanethiolate, S‐C bond is found predominately perpendicular to the surface as revealed by polarization analysis. In contrast, on × R19.1° S/Cu(111) surface, the S‐H and S‐C bonds of the butanethiol stays intact, resulting in a weakly chemisorbed butanethiol.