Low-temperature ordered phase of methylthionate monolayers on Au(111)

Article Abstract:

Methylthiolate structures adsorbed in Au(111) at low temperature using cryogenic scanning tunneling microscopy are studied. Results show that at room temperature, methylthionate monolayers have a structure with a (3(super 1/2) x 3(super 1/2))R30 degrees lattice. At 110 K, the structure becomes a one-dimensional chain structure near step edges and a two-dimensionally ordered structure with an anisotropic lattice on terraces.

Lattice dynamics, Molecular structure, Gold

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Effects of electron irradiation on methylthiolate monolayer on Au(111): electron-stimulated desorption

Article Abstract:

The scanning tunneling microscope, Auger electron spectroscopy, low-energy electron diffraction and thermal-desorption spectroscopy were integrated in the analysis of electron irradiation on the methylthiolate monolayer on Au(111). Electron-stimulated desorption (ESD) is generated by electron beam irradiation of the CH3S/Au(111) surface. Small patches of sulfur domains then cover the Au(111) surface following ESD.

Usage, Irradiation, Surface chemistry, Electron beams, Irradiation (Radiation exposure)

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Interactions of alcohols with hydroxyl- and methyl-terminated self-assembled monolayer surfaces studied by temperature-programmed desorption

Article Abstract:

The desorption spectra of methanol, ethanol, 1-propanol and 1-butanol from 11-mercaptoundecanol on Ni(III) indicate a shift from an apparent second-order desorption process to an apparent zero-order desorption process.

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