Surface photochemistry of bromoform on ice: Cross section and competing reaction pathways

Article Abstract:

The 266 nm photodissociation of bromoform adsorbed on an amorphous solid water (ASW) layer is investigated under well-defined ultrahigh vacuum conditions. A cross section of ~5 * 10(super -20) cm(super 2) is determined for bromoform photodissociation at 266 nm based on the integrated area of both the time-of-flight spectra of Br and Br2 and the postirradiation temperature-dependent desorption curves of CHBr3.

Spectra, Photochemistry, Bromides, Chemical properties, Bromides (Chemistry)

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Ultrafast electron-induced desorption of water from nanometer amorphous solid water films

Article Abstract:

Low-energy electron-induced desorption of amorphous solid water (ASW) supported on a single-crystal substrate is used to study transport of 'hot' water molecules. It is indicated that electron-excited water molecules can traverse a layer of several water molecules thick in order to desorb from the water layer.

Molecular dynamics, Thermal desorption, Properties

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The interaction of water with the Pt(533) surface

Article Abstract:

The adsorption of water on the stepped Pt(533) surface is investigated using temperature-programmed desorption (TPD) and reflection absorption infrared spectroscopy (RAIRS). Both the TPD spectra and the RAIRS results reveal two submonolayer states and one multilayer phase.

Usage, Thermal properties, Infrared spectroscopy, Chemical reactions

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