Difluorobis(cyclopentadienyl)titanium

[309-89-7] C10H10F2Ti (MW 216.02) InChI = 1S/2C5H5.2FH.Ti/c2*1-2-4-5-3-1;;;/h2*1-5H;2*1H;/q;;;;+2/p-2 InChIKey = WDGICGVEWQIMTQ-UHFFFAOYSA-L (reagent used as a precatalyst for hydrosilylation of unsaturated substrates) Alternate Name: bis(cyclopentadienyl)titanium difluoride; difluorotitanocene; titanocene difluoride, Cp2TiF2. Physical Data: mp 238–280 °C (dec). Solubility: partially soluble in water, THF, chloroform, and toluene. Form Supplied in: yellow solid; not commercially available. Analysis of Reagent Purity: 1H NMR (250 MHz, CDCl3) δ 6.42 (t); 19F NMR (CDCl3) δ (ppm downfield from CFCl3) 64.2. Preparative Methods: can be prepared by treatment of Cp2TiCl2 with aqueous NaF1 or Me3SnF in toluene;2 and by reaction of Cp2Ti(O-t-Bu)2 with BF3·Et2O.3 Purification: recrystallization from THF4 or toluene;5 sublimation at 120 °C (0.01 mm Hg).3