In our report, we present a detailed analysis of spectroscopic
data about (þ)-limonene in order to (i) deliver detailed analytical
data about the academically and industrially important monoterpene
limonene and (ii) improve the methodology of chiral
analysis. Based on the results for strychnine base and the protonated/
HCl form [17,18], we further explore the success and limitations
of the absolute configuration (AC) determination using a
comparison of experimental and calculated chiroptical data.