Reactions of Laser-Ablated Boron Atoms with Methylamines. Matrix Infrared Spectra and MP2 Frequency Calculations for Isotopic Product Molecules

Reactions of laser-ablated boron atoms with monomethylamine in argon produce two new iminoboranes, CH 3 BNH and CH 3 NBH, as well as the related isomer, CH 2 BNH 2 . Boron reactions with dimethylamine also generate these products and a third new iminoborane, CH 3 BNCH 3 . These molecules are identified by matching observed matrix infrared and MP2 calculated 10 B/ 11 B isotopic frequency ratios. In these reactions, the observed products indicate that the primary reaction mechanisms involve boron insertion into either the C−N or N−H bonds, instead of into the C−H bonds.