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Enantioselective Raman spectroscopy (esR) for distinguishing between the enantiomers of 2-butanol†
Claudia C. Rullich
Analyst Pub Date : 05/16/2018 00:00:00 , DOI:10.1039/C8AN00705E
Abstract

The first experimental application of enantioselective Raman spectroscopy (esR) is demonstrated using the example of the chiral alcohol 2-butanol. Samples of the neat enantiomers and the racemic mixture were analyzed in a self-built Raman set-up. The Raman spectrum allows the discrimination of the chemical species. It is shown that the optical rotation of a Raman peak with a small depolarization ratio can be measured. In addition, without any sample modification, e.g. chiral solvent, the enantiomers are distinguishable at a suitable half-wave retarder angle detecting only the vertically polarized component of the Raman signal.

Graphical abstract: Enantioselective Raman spectroscopy (esR) for distinguishing between the enantiomers of 2-butanol
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