- Coordinatively saturated complex fluoro cations. Synthesis and characterization of ClF6+AsF6- and ClF6+SbF6-
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The reaction of KrF2 with ClF5 and AsF5 in either ClF5 or anhydrous HF solution produces pure ClF6+AsF6-. The white, crystalline solid is stable up to 110°C under a dynamic vacuum and decomposes at higher temperature to ClF5, F2, and AsF5. X-ray powder diffraction patterns show that ClF6+AsF6- (face-centered cubic; a = 9.47 A?) is isotypic with IF6+AsF6-. The reaction of KrF2 with ClF5 and SbF5 produces ClF6+SbF6-; however, this salt could not be isolated in pure form. 19F NMR and vibrational spectra were recorded for the ClF6+ salts, and an anharmonic general valence force field was computed for ClF6+ by using the observed frequencies and the 35Cl-37Cl isotopic shift of v3 (F1u). General methods for the syntheses of coordinatively saturated complex fluoro cations are compared and discussed.
- Christe, Karl O.,Wilson, William W.,Curtis
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p. 3056 - 3060
(2008/10/08)
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- The chemistry of platinum hexafluoride. II. Reactions with chlorine trifluoride, bromine pentafluoride, and tetrafluorohydrazine
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Platinum hexafluoride reacts with chlorine trifluoride to give chlorine pentafluoride and the solid ClF3PtF5. The infrared spectrum indicates that ClF3PtF5 exists in the ionic form ClF2+PtF6-. Platinum hexafluoride reacts with bromine pentafluoride to give fluorine and a black viscous liquid, but no higher bromine fluorides are formed. Tetrafluorohydrazine and platinum hexafluoride react to give nitrogen trifluoride and PtF4-5.
- Gortsema,Toeniskoetter
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p. 1925 - 1927
(2008/10/08)
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