Fig. 4From: Interpreting vibrational circular dichroism spectra: the Cai•factor for absolute configuration with confidenceThe output of Cai for molecule (S)-1. In this example, separate spectra were measured for each enantiomer (orange and blue lines in the top panel). The combined spectrum (purple, lower panel) was compared with the calculation (green). The vertical axis is the absorbance in arbitrary units. The fit in this example is reasonably good and there is a high Cai•factorBack to article page