Mass spectra of trimethylamine adducts of the boron trihalides and some mixed trihalides
Abstract
The electron impact fragmentation of the trimethylamine adducts of BX3(X = H, F, Cl, Br, and I) and BFnBrm(n+m= 3) have been examined at 70 eV. Trends in ion abundances are evident as the atomic weight of the substituent halide increases. The results are discussed in terms of boron–nitrogen and boron–halogen bond strengths, with reference to the effects of boron–halogen π-bonding.