Temperature-reversible equilibriums and exchange among trapping sites for thionyl fluoride (SOF2) isolated in noble gas matrixes

Autor:	Llewellyn H. Jones, Basil I. Swanson, L. B. Asprey, E. M. Foltyn
Rok vydání:	1982
Předmět:	Argon Inorganic chemistry Krypton General Engineering Matrix isolation Analytical chemistry Infrared spectroscopy chemistry.chemical_element Noble gas chemistry.chemical_compound Thionyl fluoride Xenon chemistry Physical and Theoretical Chemistry Inert gas
Zdroj:	The Journal of Physical Chemistry. 86:3522-3527
ISSN:	1541-5740 0022-3654
DOI:	10.1021/j100215a008
Popis:	High-resolution IR studies have been made for thionyl fluoride isolated in argon, krypton, and xenon matrices in order to probe matrix-molecule interactions and dynamics. Argon matrices show surprisingly complex site structure with at least five distinct monomer sites, whereas krypton and xenon matrices show two and three dominant trapping sites, respectively. The additional sites observed in argon are attributed to three-atom substitutional cages which are unstable in krypton and xenon matrices. The relative intensities of the various monomer sites in krypton and especially xenon change dramatically and reversibly with temperature, indicating that the inequivalent sites are in equilibrium. In addition, the frequency positions for the various sites merge and the lines broaden as temperature is raised to give single symmetric lines in the high-temperature limit. We attribute the collapse of the site structure at elevated temperatures to a facile exchange among inequivalent sites. 8 figures, 1 table.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::788a6859595876d0f2374ef1de0c2697 https://doi.org/10.1021/j100215a008 Zobrazit plný text záznamu