Cross-step place-exchange of oligo(phenylene-ethynylene) molecules.
We have observed nitro-functionalized oligo(phenylene-ethynylene) molecules exhibiting motion up and down Au{111} substrate monatomic step edges within host self-assembled monolayers of n-alkanethiols, independent of previously observed conductance switching. Single molecules have been imaged with scanning tunneling microscopy to place-exchange reversibly between the top and bottom of monatomic substrate step edges.
Moore
Amanda M
AM
Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802-6300, USA.
Mantooth
Brent A
BA
Donhauser
Zachary J
ZJ
Maya
Francisco
F
Price
David W
DW
Yao
Yuxing
Y
Tour
James M
JM
Weiss
Paul S
PS