Large amplitude motion of the acetylene molecule within acetylene–neon complexes hosted in helium droplets

M. Briant 1, 2 E. Mengesha 1, 2 P. De Pujo 1, 2 M.-A. Gaveau 1, 2 B. Soep 1, 2 J.-M. Mestdagh 2, 1 L. Poisson 1, 2
2 DyR - Dynamique Réactionnelle
IRAMIS - Institut Rayonnement Matière de Saclay, LIDyl - Laboratoire Interactions, Dynamique et Lasers (ex SPAM)
Abstract : Superfluid helium droplets provide an ideal environment for spectroscopic studies with rotational resolution. Nevertheless, the molecular rotation is hindered because the embedded molecules are surrounded by a non-superfluid component. The present work explores the dynamical role of this component in the hindered rotation of C2H2 within the C2H2–Ne complex. A HENDI experiment was built and near-infrared spectroscopy of C2H2–Ne and C2H2 was performed in the spectral region overlapping the ν3/ν2 + ν4 + ν5 Fermi-type resonance of C2H2. The comparison between measured and simulated spectra helped to address the above issue.
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https://hal-cea.archives-ouvertes.fr/cea-01426380
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Submitted on : Wednesday, January 4, 2017 - 2:32:20 PM
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M. Briant, E. Mengesha, P. De Pujo, M.-A. Gaveau, B. Soep, et al.. Large amplitude motion of the acetylene molecule within acetylene–neon complexes hosted in helium droplets . Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2016, 18, pp.16414-16422. ⟨10.1039/C6CP02989B⟩. ⟨cea-01426380⟩

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