in neat (no solvent) Warming of starting materials (in absence of solvent, vac. line) for 30 min to room temp.; Removal of Me3SnBr by passing the mixt. through a trap cooled to -95°C (toluene), IR and NMR identification of volatile resulting compd.;

in carbon dioxide; isopropyl alcohol; toluene Condensing of Si-compd. at -196°C, warming to -78°C (2-propanol/CO2), addn. of i-Bu2AlH (toluene) in portions over 30 min (N2 or Ar), warming of mixt. (room temp., 15 min).; Removal of volatile compounds under vac., IR identification.;

in carbon dioxide; isopropyl alcohol; toluene Condensing of Si-compd. at -196°C, warming to -78°C (2-propanol/CO2), addn. of vitride (toluene) in portions over 30 min (N2 or Ar), warming of mixt. (room temp., 15 min).; Removal of volatile compounds under vac., IR identification.;

React. occurs at room temp. (N2 or Ar, 15 min).; IR spectrum of volatile material indicates resulting compounds and 5percent unreacted SiF3SiHBr2.;

in neat (no solvent) SiF3SiHBr2, Me3SnH, and CF2CF2 (1:2:7 ratio) at -196°C are warmed (in absence of solvent, vac. line) to room temp. for 10 min.; Removal of Me3SnCl by passing the mixt. through a trap cooled to -95°C (toluene). IR spectrum indicates presence of only SiF3SiH3 and unreacted CF2CF2.;

in carbon dioxide; isopropyl alcohol; toluene Condensing of Si-compd. at -196°C, warming to -78°C (2-propanol/CO2), addn. of i-Bu2AlH (toluene) in portions over 30 min (N2 or Ar), warming of mixt. (room temp., 15 min).; Removal of volatile compounds under vac., IR identification.;

in carbon dioxide; isopropyl alcohol; toluene Condensing of Si-compd. at -196°C, warming to -78°C (2-propanol/CO2), addn. of vitride (toluene) in portions over 30 min (N2 or Ar), warming of mixt. (room temp., 15 min).; Removal of volatile compounds under vac., IR identification.;

React. occurs at room temp. (N2 or Ar, 15 min).; IR spectrum of volatile material indicates resulting compounds and 5percent unreacted SiF3SiHBr2.;