The preparation and some physical properties of osmium oxide pentafluoride, OsOF5
- 1 January 1968
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 536-543
- https://doi.org/10.1039/j19680000536
Abstract
The emerald green solid, OsOF5, m. p. 59·2, b. p. 100·6°, is the major product of the fluorination of osmium dioxide. Vapour pressure–temperature relationships for the compound are: 32–59°(solid), log Pmm=–2266//T + 9·064; 59–105°(liquid), log Pmm=–1911//T + 7·994. The solid is dimorphic being orthorhombic below the transition point of 32·5° and body centred cubic, a= 6·14 Å, above it. It is paramagnetic and the susceptibility obeys the Curie-Weiss law approximately, with θ=+6°, the temperature independent magnetic moment being, µ= 1·47 B.M. The infrared spectrum of OsOF5(gas) is similar to that of ReOF5(gas) and is consistent with C4v molecular symmetry.Keywords
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