Figure 2.
Chemical structure and nomenclature for the 5CB molecule. The assignment was taken from Sandstrom and co-workers(40, 41). The one-dimensional 13C spectrum was obtained using a cross polarization experiment with 5 ms contact time. The PISEMA was acquired with 64 t1 increments. The spectrum was processed with linear prediction of t1 signal up to 128 points. 90° shifted sine bell window function is applied in both dimensions. The scale of the dipolar dimension was corrected according to a theoretical factor of 0.82.