Compounds of the type R1R2CH-CHR2R1, in which R1 is 2, 6-dimethylphenyl and R2 is hydrogen, methyl, or t-butyl, were synthesized and the meso and racemic isomers separated. A study of these compounds by PMR spectroscopy, including 13C-satellites and the effects of temperature variation, yielded information about the configurations, the preferential conformations, and the barriers to rotations about the R1 CH bonds.