Drozdov, V. A. published the artcileAcid-base properties of alkyl(aryl)fluorosilanes in nonaqueous media, Computed Properties of 312-40-3, the publication is Zhurnal Obshchei Khimii (1970), 40(1), 104-9, database is CAplus.
Conventional syntheses gave the following: Me2EtSiF, b. 51¡ã, d20 -, n20D – (n15D 1.3570); Me2PrSiF, b. 77¡ã, -, 1.3708; Me2PhSiF, b. 155-7¡ã, -, 1.5471; (PhCH2)SiMe2F, b98 104¡ã, 0.9743, 1.4838; MeEt(PhCH2)SiF, b. 200-2¡ã, 0.9663, 1.4792; MePh(PhCH2)SiF, b. 117¡ã, 1.0610, 1.5481; MePh2SiF, b43 164.5¡ã, 1.077, 1.5482; Et3SiF, b. 109-10¡ã, 0.8392, 1.3906; Et2PhSiF, b8 77-8¡ã, 0.9837, 1.4880; Et2(PhCH2)SiF, b95 96¡ã, 0.9828, 1.4942; PhSiFCl2, b. 157-9¡ã, -, 1.5293; Ph2SiFCl, b10 131-2¡ã, -, 1.5471; MePhSiF2, b4 108-10¡ã, 1.2000, 1.5339; PhSiF2Cl, b. 129-30¡ã, -, 1.4575; PhSiF3, b. 102-3¡ã, 1.2270, 1.4106; and PhSiCl3, b100 225¡ã, 1.2220, 1.5821; also: MePh2SiCl, b45 191¡ã; MePhSiCl2, b100 223-5¡ã; MePh(PhCH2)SiCl, b. 149¡ã; Me2PhSiCl, b. 190-1¡ã; and Et2PhSiCl, b9 100-2¡ã. Ir spectral curves of 12 of these were shown and their thermodynamic acidity was determined by potentiometric titration in dry MeOH and EtOH relative to dry HCl in the same solvents. The relative values of such acidity expressed in units of pK (-SiR3) were, in MeOH and EtOH, resp.: Et3SiF, 10.9, 10.0; MeEt(PhCH2)-SiF 10.2, 9.56; Me2PhSiF 9.55, 9.14; MePh(PhCH2)SiF, 9.29, 8.80; and Me3SiF, 10.43, 9.69. Unlike chlorosilanes, the sub-stituent groups had considerable effect on the acidity of the fluorosilanes. This is ascribed to the low polarizability of these.
Zhurnal Obshchei Khimii published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Computed Properties of 312-40-3.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia