| Abstract
| - NMR spectra and their temperature-dependence arereported for tris(dimethylamino)methane(1),for tris(diethylamino)methane (2), fortriisopropylamine (3), and forN,N-diisopropyl-3-pentylamine(4) and are discussed in terms of the conformations adoptedand interconversion of theseconformations, as indicated by molecular mechanics calculations.Solid state NMR spectra, obtainedby freezing the neat liquids at low temperatures, were also used tosupport the conclusions of theconformational analysis. Proton NMR spectra of protonated forms of3 and 4 were similarlyanalyzed. Less crowded triple rotors prefer a gauche,gauche, gauche conformation whilemorecrowded ones adopt an anti, gauche,gauche arrangement.
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