Reactions of cyclic aliphatic and aromatic amines on Ge (100)-2*1 and Si (100)-2*1

Article Abstract:

The Ge (100) surface with organic molecules was examined for its reaction with a model system of six cyclic, five-membered aliphatic and aromatic amines using multiple internal reflection infrared spectroscopy in combination with density functional theory cluster calculations. The reactions of pyrrolidine, N-methylprrolidine, pyrrole and N-methylpyrrole were then probed on the Si (100) 2*1 surface for comparison.

Optical properties, Infrared spectroscopy, Amines

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A density functional theory study on the effect of Ge alloying on hydrogen desorption from SiGe alloy surfaces

Article Abstract:

Density functional theory is used to investigate hydrogen desorption from silicon-germanium (SiGe) alloy surface and the effect of germanium alloying on the kinetics of hydrogen desorption through the preparing and interdimer mechanisms. The effects of cluster size and constraints on the calculated reaction energies and activation barriers of hydrogen desorption via the two mechanisms are discussed.

All Other Basic Inorganic Chemical Manufacturing, Silicon & Inorganic Compounds, Density functionals, Density functional theory, Silicon compounds

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Ethynediamine on Ge(100)-2*1: The role of interdimer interactions

Article Abstract:

The reaction of the bifunctional molecule ethylenediamine on Ge(100)-2*1 is presented using multiple internal reflection Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and density functional theory calculations. Ethylenediamine exhibits different adsorption behavior in simple methylamines on the Ge(001)-2*1 surface.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Methylamines, Analysis, Spectra, X-ray spectroscopy, Fourier transform infrared spectroscopy, Chemical properties

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