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The concentration-dependent specific rotation, [α]D, of (R)-pantolactone in carbon tetrachloride (CCl4) at 26 °C.37 The computed [α]D= χI[αI] + χII[αII] (red line) values are based on the theoretically obtained thermally averaged specific rotation of the monomer ([αI]) and dimer ([αII]) species (top structures). The mole fractions χI and χII of the monomer and dimer species were determined with the experimental Keq = 8.9 ± 0.6 M-1 at 26 °C.
