- Reaction of Silicon Difluoride with Halogens: a Reinvestigation
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Reactions of SiF2 with halogens have been reinvestigated by both co-condensation and gas-phase methods.The co-condensation method yields a number of fluorohalogenosilanes including mono-, di-, and higher silane derivatives.These compounds contain SiF, SiF2, and SiF3 units.The reactivity towards SiF2 decreases from chlorine through bromine to iodine.While chlorine and bromine give rise to a number of fluorohalogenosilanes, iodine yields only the monosilane derivatives.In contrast, the gas-phase reaction do not progress to any appreciable extent.The products have been characterized by mass spectrometry and 19F and 29Si n.m.r. spectroscopy.Many have been identified for the first time.
- Suresh, Bettadapura S.,Thompson, James Charlton
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p. 1123 - 1126
(2007/10/02)
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- Preparation of Hexafluorodisilane and Reactions of Hexafluorodisilane and Hexachlorodisilane with Sulfur Trioxide
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Hexafluorodisilane has been prepared by the fluorination of hexachlorodisilane or hexabromodisilane by potassium fluoride in boiling acetonitrile, in yields approximating 45 and 60percent respectively.Hexafluorodisilane has been characterised by infrared
- Suresh, Bettadapura Srinivasaiah,Padma, Doddaballapur Krishnamurthy
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p. 1867 - 1868
(2007/10/02)
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