Fig. 1: Schematic of COLTRIMS reaction microscope upon electron-impact and proton transfer pathway of H3O+ + C4H4N+ and measured TOF correlation spectrum. | Nature Communications

Fig. 1: Schematic of COLTRIMS reaction microscope upon electron-impact and proton transfer pathway of H3O+ + C4H4N+ and measured TOF correlation spectrum.

From: State- and time-resolved observation of ultrafast intermolecular proton transfer in hydrated biomolecules

Fig. 1

a The local double ionization of C4H5N-H2O complex upon electron-impact. The dots between water and pyrrole denote intermolecular H-bond; b Proton transfer from doubly ionized C4H5N2+ to H2O molecule; Atomic colors: C (gray), H (white), N (blue). c Schematic diagram of the COLTRIMS setup. Purple, red, blue and turquoise lines respectively represent UV laser, ions, electrons and gas jet. The black arrows represent the directions of electric and magnetic fields. d Measured TOF correlation map between the first and the second cations. The cyan and green arrows represent the direct dissociation H2O++C4H5N+ and the proton transfer H3O++C4H4N+ channels, respectively. The vertical and horizontal lines are from false coincidence. The count intensity is color-coded on a linear scale. Source data are provided as a Source Data file.

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