measured ions which severely affects the distinction of enantiomers. In the case of {CH${}^{+}$, Cl${}^{+}$, Br${}^{+}$, CF${}_{2}^{+}$}, the missing fluorine atom carries only a small momentum, leading to an average sum momentum of the detected ions of around 50 atomic units. This still allows us to apply a rather narrow constraint on the sum momentum. Thus, the contribution of the different isotopes can be separated; a clear distinction between enantiomers, however, was only visible when a restriction on the momenta of the individual ions was imposed. The maximum momentum observed in the completely detected break-up (300 atomic units) was taken as upper threshold for the momenta of the individual ions.\
Figure \[fig:angles\_comparison\] (left) shows the resulting histogram for the chirality parameters as defined before (with $\mathrm{CF}_3 \cdot \left(\mathrm{Cl} \times \mathrm{Br}\right)$ being the shorthand notation for $\vec{p}_\mathrm{CF_3}\cdot \left(\vec{p}_\mathrm{Cl}\times \vec{p}_\mathrm{Br}\right) (|\vec{p}_\mathrm{CF_3}||\vec{p}_\mathrm{Cl} \times\vec{p}_\mathrm{Br}|)^{-1}$ etc.). Two peaks for the enantiomers, similar to Figure \[fig:halothan\_305eV\_chirality\_parameter\], are visible, with an increased background in between.\
The same condition for the ions’ momenta was set for investigating the break-ups {H${}^{+}$, Cl${}^{+}$, Br${}^{+}$, CF${}_{3}^{+}$} and {H${}^{+}$, Cl${}^{+}$, Br${}^{+}$, CF${}_{2}^{+}$}, i.e. two additional Coulomb explosion pathways that are expected to yield information on the absolute configuration. In this case, a 