In addition, we checked the influence of the solvent used in thegeometry optimization in combination with a solvent change in the
calculation of optical rotation at 589 nm of the three conformers
(last four entries in Table 8). The specific optical rotation differed by
4.1 (4%) at maximum.
To sum up, we can safely assume, that the structural models
with a continuum model for solvent incorporation (IEF-PCM) are
appropriate to be used for the prediction of optical rotation values
of limonene.
To further broaden the applicability and to increase the reliability
of the determination of the absolute configuration using
ORD data, a multiple wavelength analysis was performed.