Substrate Induced Ordering of Molecular Absorbates on Au(111)
Abstract
Adsorbed monolayers of Ru(bpy)2bpy-(CH2)x-(bpy)2+(x=4 and 5) on the unreconstructed and reconstructed surfaces of gold(111) were imaged by scanning tunneling microscopy in dimethylformamide. On the reconstructed surface, the adsorbed films display highly-ordered patterns that are commensurate with the measured corrugation patterns of the substrate, STM images reveal a random spatial distribution. The key finding in our study is that the observed supramolecular structures of electroactive films on the reconstructed surface are commensurate with the long range atomic corrugation of the underlying substrate. In contrast, long range ordering is absent in films of I adsorbed on the unreconstructed and atomically flat Au(111) surface.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 27, 1992
- Accession Number
- ADA246850
Entities
People
- C. M. Elliott
- Claudia R. Arana
- Helen H. Petach
- Héctor D. Abruña
- Joachim H. Scott
Organizations
- University of Minnesota