Electrochemical scanning tunneling microscopy examination of the structures of benzenethiol molecules adsorbed on Au(1 0 0) and Pt(1 0 0) electrodes

Collective phenomena on metallic surfaces studied with scanning tunneling microscopy and low energy electron microscopy

“…The coverage of 0.3<θ<0.4 is frequently reported [79,81,190,191] and is typical for the striped β phase variants as can be deduced from the suggested unit cells. This is also consistent with the nearly striped appearance of the ϕ phase.…”

“…Additional phases were reported for aromatic thiols and for more complex molecules. For benzenethiol, a new structure has been reported [191] in electrochemical environment. Apart from a square planar structure with a 45 • rotation with respect to the main crystallographic directions, the authors also observed a planar √ 2 × √ 5 structure, for which they assigned the heads of the molecules to equivalent hollow sites, while the tails would be probably in a standing-up orientation, to account for the coverage of θ=0.33 and the big benzene rings.…”

In situ scanning tunneling microscopy of 5-(Dodecyloxy)-2-(5-(4-(pentyloxy)phenyl)-1H-pyrazol-3-yl)phenol adsorbed on Au(111) electrode

“…Au(1 1 1) single-crystal electrode used for voltammetric or STM experiment was made by melting a Au wire, as reported [21][22][23][24]. It was annealed by a hydrogen torch, quenched in hydrogen saturated Millipore water, rinsed with acetone, and finally blowing dry with a nitrogen stream before it was immersed in a benzene dosing solution containing 1 or 2 and the dosing time was typically 30 s. The as-prepared Au(1 1 1) electrode was blown dry with a nitrogen stream before it was mounted on the STM base.…”