Phenylacetylene One-Dimensional Nanostructures on the Si(100)-2 1:H Surface
Journal Article
·
· Journal of the American Chemical Society
- Northwestern University, Evanston
- ORNL
Using ultrahigh vacuum (UHV) scanning tunneling microscopy (STM), many olefins have been shown to self-assemble on the hydrogen-passivated Si(100)-2 1 surface into one-dimensional nanostructures. This paper demonstrates that similar one-dimensional nanostructures can also be realized using alkynes. In particular, UHV STM, sum frequency generation (SFG), and density functional theory (DFT) are employed to study the growth mechanism and binding configuration of phenylacetylene (PA) one-dimensional nanostructures on the Si(100)-2 1:H surface. Molecular-resolution UHV STM images reveal the binding position and spacing of PA with respect to the underlying silicon dimer rows. Furthermore, UHV STM characterization of heteromolecular one-dimensional nanostructures of styrene and PA shows distinct electronic contrast between the two molecules, which is confirmed using simulated STM images derived from DFT and provides insight into the nature of PA binding to silicon. Additional evidence from SFG measurements corroborates the conclusion that the terminal carbon atoms of PA retain -conjugation following reaction to the Si(100)-2 1:H surface.
- Research Organization:
- Oak Ridge National Laboratory (ORNL)
- Sponsoring Organization:
- SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1049144
- Journal Information:
- Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 9 Vol. 132; ISSN JACSAT; ISSN 0002-7863
- Country of Publication:
- United States
- Language:
- English
Similar Records
Supported Pt Nanoparticles on Mesoporous Titania for Selective Hydrogenation of Phenylacetylene
Theoretical modeling of the interaction of phenylacetylene and styrene molecules with Pd{111}
Bonding Structure of Phenylacetylene on Hydrogen-Terminated Si(111) and Si(100): Surface Photoelectron Spectroscopy Analysis and Ab Initio Calculations
Journal Article
·
Mon Nov 16 19:00:00 EST 2020
· Frontiers in Chemistry
·
OSTI ID:1775272
Theoretical modeling of the interaction of phenylacetylene and styrene molecules with Pd{111}
Journal Article
·
Thu Dec 14 23:00:00 EST 2017
· Russian Chemical Bulletin
·
OSTI ID:22863428
Bonding Structure of Phenylacetylene on Hydrogen-Terminated Si(111) and Si(100): Surface Photoelectron Spectroscopy Analysis and Ab Initio Calculations
Journal Article
·
Fri Dec 30 23:00:00 EST 2011
· Langmuir
·
OSTI ID:1041709