Experimental optical rotation values for limonene [38] gave
values that are very similar to our calculated data assuming a
39:31:30 population mix. This parallels the data of Wilson et al. [38]
since they obtained (B3LYP/cc-pvdz) at 355 nm a specific ORD of
270.3, and at 633 a value of 76.3, similar to our calculated data and
the experimental values. However, the authors did not give detailed
information how they obtained the three conformers, and which
data they used for Boltzmann weighing of the conformers, nor they
presented the individual ORD data for the conformers.