Author/Authors :
Terborg، نويسنده , , R. and Polcik، نويسنده , , M. and Hoeft، نويسنده , , J.-T. and Kittel، نويسنده , , M. and Pascal، نويسنده , , M. and Kang، نويسنده , , J.H. and Lamont، نويسنده , , C.L.A. and Bradshaw، نويسنده , , A.M. and Woodruff، نويسنده , , D.P.، نويسنده ,
Abstract :
Using N 1s scanned-energy mode photoelectron diffraction, together with N K-edge near-edge absorption fine structure, the local adsorption site and molecular orientation of 2-methyl-pyridine adsorbed on Cu(110) has been determined and the results are compared with a similar study of pyridine adsorption on the same surface. The molecule is found to bond to the surface through the N atom that occupies a near-atop site. The molecular plane is almost perpendicular to the surface but twisted into an azimuth away from the two principal high-symmetry directions of the surface. The aromatic ring is also tilted within the molecular plane such as to increase the separation of the methyl group away from the surface.
Keywords :
Photoelectron diffraction , surface structure , and topography , Aromatics , Chemisorption , Copper , Low index single crystal surfaces , Roughness , morphology
