Infrared Spectra and Surface Reactions of HCl, DCl and Cl 2  Adsorbed on Germanium | Zendy

Lubezky A. | Zendy; Folman M. | Zendy

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Infrared Spectra and Surface Reactions of HCl, DCl and Cl 2 Adsorbed on Germanium

Author(s) -

Lubezky A.,

Folman M.

Publication year - 1971

Publication title -

israel journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.908

H-Index - 54

eISSN - 1869-5868

pISSN - 0021-2148

DOI - 10.1002/ijch.197100063

Subject(s) - chemistry , germanium , adsorption , dissociation (chemistry) , analytical chemistry (journal) , desorption , infrared spectroscopy , spectral line , mass spectrum , infrared , evaporation , absorption spectroscopy , mass spectrometry , silicon , organic chemistry , optics , physics , chromatography , astronomy , thermodynamics

Adsorption of HCl, DCl and Cl 2 on high surface area germanium films was studied by means of IR absorption spectra. The films were prepared by high temperature evaporation of germanium in a helium atmosphere. On adsorption of HCl and DCl two main absorptions appeared at 460 cm −1 and 408 cm −1 and additional weaker bands at 2050 cm −1 and 2920 cm −1 (with HCl) and at 1313 cm −1 (with DCl). The spectra indicate that both gases undergo dissociation on adsorption. In the case of Cl 2 the bands at 460 cm −1 and 408 cm −1 appeared in the spectrum; here again strong evidence exists that dissociative adsorption takes place. Mass spectrometer analysis showed that the desorption product consists mainly of GeCl 4 .

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