Table 2. Experimental ¹⁹F- and ²⁹Si-NMR parameters for the anionic fluoro- and chlorosilicates of Si(cat^X)₂ in CD₂Cl₂.

[Z-Si(catX)2]–	δ 19F-NMR (Z = F)	δ 29Si-NMR (Z = F)	1 J SiF [Hz] (Z = F)	δ 29Si-NMR (Z = Cl)
Si(cattBu)2	–131.6; –133.7, –133.9	–104.8	188.9	–91.8
Si(catH)2	–133.1	–104.8	191.1	–91.6
Si(catF)2	–133.5	–101.6	194.8	–87.1
Si(catCl)2	–132.7	–105.1	195.2	–90.4
Si(catBr)2	–132.3	–107.0	195.2	–92.5