Title: Cesium Fluoride
CAS Registry Number: 13400-13-0
Molecular Formula: CsF
Molecular Weight: 151.90
Percent Composition: Cs 87.50%, F 12.51%
Literature References: Basic catalyst in fluoride chemistry and oxidation reactions. Prepn from pulverized pollucite: R. V. Winsor, G. H. Cady, J. Am. Chem. Soc. 70, 1500 (1948). Properties as a scintillator: M. Moszynski et al., Nucl. Instrum. Methods 179, 271 (1981); and use as a detector in positron cameras: R. Allemand et al., J. Nucl. Med. 21, 153 (1980). Vapor pressure determn: H. Kawano et al., Bull. Chem. Soc. Jpn. 57, 581 (1984). Infrared spectroscopy: A. G. Maki, W. B. Olson, J. Mol. Spectrosc. 140, 185 (1990). Use in malonic ester synthesis: T. Sato, J. Otera, J. Org. Chem. 60, 2627 (1995); in trifluoromethylation of esters, aldehydes and ketones: R. P. Singh et al., ibid. 64, 2873 (1999); in synthesis of esters and ethers: S. T. A. Shah et al., Tetrahedron 61, 6652 (2005); in Stille coupling reactions: S. P. H. Mee et al., Chem. Eur. J. 11, 3294 (2005).
Properties: Hygroscopic crystalline solid, mp 682°. d 4.61.
Melting point: mp 682°
Density: d 4.61
Use: Catalyst in oxidation reactions; as a solid base when adsorbed onto Celite, q.v. Fluoride source in organic synthesis. Inorganic scintillator. |