Circular dichroism laser mass spectrometry: Differentiation of 3-methylcyclopentanone enantiomers

(Figure Presented) Rotational sense does matter! Left and right circularly polarised laser light can be used to achieve different ionisation yields when applying multiphoton ionisation to chiral ketones (see picture). So a new type of enantioselective laser mass spectrometry becomes possible which also gives information on the involved electronic transitions.