in toluene byproducts: phenyltris(pentafluorophenyl)silane; mixt. of tris(pentafluorophenyl)silicon bromide and pentaphenylantimony in toluene heated at 100°C for 1 h in evacuated glass ampoule; cooled to room temp., crystals filtered off, washed with petroleum ether, dried;

in toluene T=100°C; 1 h;