138914-12-2

Basic information

• Product Name: Silane, difluoro[2-(fluorodiphenylsilyl)phenyl]phenyl-
• CAS NO: 138914-12-2
• Molecular Formula: C24H19F3Si2
• Molecular Weight: 420.581
• Mol File: 138914-12-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Silane, difluoro[2-(fluorodiphenylsilyl)phenyl]phenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Silane, difluoro[2-(fluorodiphenylsilyl)phenyl]phenyl-(138914-12-2)
• EPA Substance Registry System: Silane, difluoro[2-(fluorodiphenylsilyl)phenyl]phenyl-(138914-12-2)

Safety Data

• Hazardous Substances Data: 138914-12-2(Hazardous Substances Data)

Upstream product

• 125666-54-8 ortho-bis(difluorophenylsilyl)benzene 

Downstream Products

• 312-40-3 difluorodiphenylsilane 
• 328-57-4 methyldifluorophenylsilane 

Relevant articles and documents

Anion complexation by bidentate Lewis acidic hosts, ortho-bis(fluorosilyl) benzenes

Ortho-bis(fluorosilyl)benzenes, precursors for bis-siliconates, o-C6H4(SiPhF2)2 (1), o-C6H4(SiF3)(SiPh2F) (2) and o-C6H4(SiPhF2)(SiPh2F) (3), possess anion binding properties as bidentate Lewis acidic hosts in organic solvents. Compound 1 quantitatively binds a fluoride ion from KF suspended in acetone or tetrahydrofuran without support of 18-crown-6 to form the corresponding soluble bis-siliconate [o-C6H4(SiPhF2)2F]K (4). The binding constants of a series of fluorosilanes for a fluoride ion are measured by 1H and 19F NMR spectroscopies. The affinity of fluorosilanes towards a fluoride ion increases in the order PhMeSiF2 (7) 2SiF2 (9) 1.1 × 109 M-1 at 193 K. These bidentate Lewis acids 1-3 are among the strongest organic hosts for a fluoride ion in organic solvents ever reported.