The Molecular Structure of Trimethylamine–Boron Triiodide as Studied by Gas Electron Diffraction

Abstract

Abstract The molecular structure of trimethylamine–boron triiodide (CH3)3N·BI3 has been determined from gas electron-diffraction data. The molecular parameter values and their uncertainties are rg(B–I)=2.245±0.004 Å, rg(N–B)=1.663±0.013 Å, rg(C–N)=1.497±0.005 Å, rg(C–H)=1.103±0.010 Å, ∠IBI=108.6±0.4°, and ∠CNC=106.0±0.8°. The potential barrier around the N–B bond has also been estimated to be about 3.5 kcal mol−1 (1 cal=4.184J).