354-89-2

Basic information

• Product Name: (pentafluoro ethyl) trifluoro silane
• Synonyms: (pentafluoro ethyl) trifluoro silane
• CAS NO: 354-89-2
• Molecular Weight: 204.095
• Mol File: 354-89-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (pentafluoro ethyl) trifluoro silane(CAS DataBase Reference)
• NIST Chemistry Reference: (pentafluoro ethyl) trifluoro silane(354-89-2)
• EPA Substance Registry System: (pentafluoro ethyl) trifluoro silane(354-89-2)

Safety Data

• Hazardous Substances Data: 354-89-2(Hazardous Substances Data)

Upstream product

• 1463487-28-6 C₆F₁₆Si 

Downstream Products

• 1516-65-0 (Z)-perfluoro-2-butene 
• 354-96-1 perfluoro(2,3-dimethylbutane) 
• 432-04-2 tris(trifluoromethyl)phosphine 
• 1516-64-9 (E)-perfluoro-2-butene 
• 7783-61-1 silicon tetrafluoride 
• 354-33-6 1,1,1,2,2-pentafluoroethane 
• 360-89-4 octafluoro-2-butene 
• 58734-91-1 fluoro(trifluoromethyl)carbene 

Relevant articles and documents

Synthesis of tris- and tetrakis(pentafluoroethyl)silanes

The synthesis and complete characterization of functional, highly Lewis acidic tris(pentafluoroethyl)silanes as well as tetrakis(perfluoroalkyl)silanes Si(C2F5)4 and Si(C2F 5)3CF3 by direct fluorination is described. The reaction of SiCl4 with LiC2F5 invariably affords (pentafluoroethyl)fluorosilicates. To avoid silicate formation by fluoride transfer from LiC2F5 the Lewis acidity of the silane has to be decreased by electron-donating substituents, such as dialkylamino groups. The easily accessible Si(C2F5) 3NEt2 is a valuable precursor for a series of tris(pentafluoroethyl)silanes. Special eFfects: functional and highly Lewis acidic tris(pentafluoroethyl)silanes as well as the tetrakis(perfluoroalkyl) silanes Si(C2F5)4 and Si(C2F 5)3CF3 are prepared. The two tetrakis species were formed in the direct fluorination of tris-(pentafluoroethyl)ethyl- and methylsilane. Si(C2F5)4 was characterized by X-ray crystallography (see figure).