Fig. 8 | Nature Communications

Fig. 8

From: Real-time determination of enantiomeric and isomeric content using photoelectron elliptical dichroism

Fig. 8

Real-time analysis of a dynamical camphor-fenchone mixture. The fingerprints \(\overline {\overline {\cal P} } ^{sym}(p_z,2{\mathrm{\Omega }}_0)\), \(\overline {\overline {\cal P} } ^{anti}(p_z,{\mathrm{\Omega }}_0)\) and \(\overline {\overline {\cal P} } ^{anti}(p_z,3{\mathrm{\Omega }}_0)\) from pure (+)-fenchone (orange) and (+)-camphor (blue) were recorded using pure samples before the dynamical measurement and are presented in the left column. At t = 0, two flasks of (−)-fenchone and (−)-camphor were connected to the gas jet. At t = 2′30″, the valve openings were adjusted to increase the fenchone contribution. At t = 5 min, the (−)-fenchone flask was closed and a (+)-fenchone flask was opened. At t = 10 min, the (−)-camphor was closed and a (+)-camphor flask was opened. a Total signal from the gas mixture during the c-PEELD measurement. b Temporal evolution of the 1D symmetric component at 2Ω0, extracted from a Gabor analysis with a 30 s window. c 1D antisymmetric component at Ω0. d 1D antisymmetric component at 3Ω0. e Contribution to the total signal and f enantiomeric excess of fenchone (orange) and camphor (blue) retrieved by fitting the symmetric and antisymmetric components

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