Orientationally ordered C60 on p-sexiphenyl nanostripes on Ag111.
Long range orientational ordering within C(60) monolayers is observed on p-sexithiophene (6P) monolayer nanostripes on Ag(111) at 77 K. Low-temperature scanning tunneling microscopy studies reveal that the C(60)-6P intermolecular interaction constrains all C(60) molecules to adsorb on their hexagons atop 6P molecules. The orientation-dependent bond-to-bond Coulomb interaction between charge deficient single bonds and double bonds with excess charge in neighboring C(60) molecules results in the in-plane orientational ordering and contributes to the lowering of the total energy of the orientationally ordered C(60) islands.
Chen
Wei
W
Department of Physics, National University of Singapore, 2 Science Drive 3, 117542, Singapore.
Zhang
Hongliang
H
Huang
Han
H
Chen
Lan
L
Wee
Andrew Thye Shen
AT
D016880:Anisotropy; D003460:Crystallization / Q000379:methods*; D037741:Fullerenes / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties
D037741:Fullerenes; D046911:Macromolecular Substances; D037742:Nanotubes, Carbon; D012834:Silver; C069837:fullerene C60