Carbon-13 and nitrogen-14 nuclear magnetic resonance study of triethylenediamine

Abstract

¹³ C and ¹⁴N n.m.r. relaxation times are reported for the orientationally disordered solid I phase of triethylenediamine (TEDA). Analysis of the associated correlation times within the rotational diffusion model indicates that reorientation of the molecular C₃ axis is more hindered than reorientation about this axis, the anisotropy diminishing with increasing temperature. The ¹³C chemical shift and one-bond scalar coupling constants in the solid I phase are noted as being within experimental error of those measured for TEDA dissolved in dimethyl sulphoxide.