%0 Journal Article %J J. Phys. Chem. C %D 2019 %T Formation of Highly Ordered Terminal Alkyne Self-Assembled Monolayers on the Au{111} Surface through Substitution of 1-Decaboranethiolate %A Shenkai Wang %A Dominic P Goronzy %A Thomas D Young %A Natcha Wattanatorn %A Logan Stewart %A Tomas Base %A Paul S Weiss %K alkyne %K decaborane %K gold %K self-assembly %K surface %K thiol %X

The reaction aimed at completing and closing the open cages of 1-decaboranethiol self-assembled monolayers (SAMs) on Au{111} with 4-phenyl-1-butyne results in highly ordered monolayers of 4-phenyl-1-butyne. The initially disordered 1-decaboranethiolate changed into ordered (√3×√3)R 30° lattices on Au{111} typical of alkyne SAMs, indicating the complete substitution of 1-decaboranethiolate moieties, as determined by nanoscale imaging with scanning tunneling microscopy and X-ray photoelectron spectroscopy. Vibrational spectroscopy results indicate that the process happens gradually and that alkynyl groups are not totally oxidized in the ordered 4-phenyl-1-butyne monolayer.

%B J. Phys. Chem. C %V 123 %P 1348–1353 %G eng %U https://pubs.acs.org/doi/10.1021/acs.jpcc.8b11033 %N 2 %R 10.1021/acs.jpcc.8b11033