Fig. 5: Intermolecular stretching of the N2-Ar dimer.
From: Intermolecular interactions probed by rotational dynamics in gas-phase clusters
a Reconstructed (blue curve) and calculated (red curve) time-dependent intermolecular stretching of the N2–Ar dimer. The shaded areas represent the standard deviations of three data sets. b Power spectra of the reconstructed (blue curve) and calculated (red curve) intermolecular stretching. Two central frequencies of peaks are marked by v1 and v2. c The energy levels, with the even parity p = (−1)j+L+J and J = 4, are grouped by the approximate quantum numbers (n, j, L). The energy gaps related to the frequencies of rotation of N2 and intermolecular stretching are marked by red and blue arrows, respectively. For comparison with gas-phase molecules, j–j + 2 coherences are used to label states contributing to the rotation of N2 in N2–Ar. The states related to the intermolecular stretching are labeled with v1 and v2.
