C. Forte et al., A H-1 and C-13 solid state NMR investigation of the structure and molecular dynamics of hydrogenated oligocyclopentadiene, J PHYS CH B, 104(3), 2000, pp. 510-514
The structure and dynamics of hydrogenated oligo(cyclopentadiene ne) (HOCP)
was investigated by means of H-1 and C-13 NMR in the solid state. The C-13
NMR spectrum of HOCP is reported and interpreted for the first time here.
Quantitative information on the distribution of the different structural an
d diastereoisomeric environments of the cyclopentane monomers was thus obta
ined. Moreover, the dynamic behavior of HOCP was investigated through the m
easurements of H-1 T-1 rho, and T-1, as well as C-13 T-1 relaxation times,
highlighting the presence of two major motional processes, whose specific n
ature is discussed. Quantitative dynamic parameters were extracted by apply
ing suitable theoretical models to the H-1 T-1 curve vs temperature.