Orientation of nickelocene on Ag(100)

Authors

D. L. Pugmire, University of Nebraska-LincolnFollow
C. M. Woodbridge, University of Nebraska - LincolnFollow
Marjorie Langell, University of Nebraska - LincolnFollow

Date of this Version

8-11-1998

Comments

Published in Surface Science 411:1-2 (August 11, 1998), pp. L844-L848; doi:10.1016/S0039-6028(98)00408-7 Copyright © 1998 Elsevier Science B.V. Used by permission. http://www.sciencedirect.com/science/journal/00396028

Abstract

High-resolution electron-energy-loss spectroscopy has been used to study the molecular adsorption of nickelocene, Ni(C₅H₅)₂, on Ag(100). Results indicate that at up to one monolayer coverage, nickelocene adsorbs molecularly with its axis approximately perpendicular to the surface. At very high coverages, the molecular axis is not exclusively oriented along the surface normal. This is possibly due to randomization of the metallocene orientation as multilayers are formed.