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Zusammenfassung:
Deuterium and proton NMR line shape and T1 relaxation measurements of solid basketene-d2 are reported. The compound is polymorphic, exhibiting a low-temperature rigid phase that transforms at 221 K to a plastic phase. Kinetic parameters for the molecular reorientation and self-diffusion in the high-temperature phase are derived, yielding the Arrhenius law parameters A = 4 × 1013 s-1, E = (13.8 ± 0.5) kJ mol-1 for reorientation and Ad=1.2 × 1013 s-1, Ed = (39 ± 2) kJ mol-1 for self-diffusion
