未拆分的外消旋体与拆分后的对映体的红外光谱是相同或者不同,通过实验认为手性色谱分离对映体的三点作用原理有可能也适用于外消旋体的红外光谱分析。其规律是只有含三个及三个以上的极性基团的分子,外消旋体的图谱才与对应的对映体的图谱不一致。如只含一个或二个极性基团,两者的图谱就没有区别。 The infrared spectra of the unsoldered racemate and the resolved enantiomer are the same or different, and the three-point principle of the separation of the enantiomers by chiral chromatography is thought to be possible also for the racemic infrared Spectral analysis. The rule is that only three and more than three polar groups of molecules, racemate spectrum and the corresponding enantiomeric mapping inconsistent. If there is only one or two polar groups, there is no difference between the two.