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Issue 4, 2018
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Dynamics of acetylene dimers hosted in helium droplets

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The CH antisymmetric stretch of the C2H2 moieties in acetylene dimers was explored over the range 3270–3290 cm−1 using the helium nanodroplet isolation (HENDI) technique. This work is part of a general investigation which addresses the dynamical consequences of coupling the deformation motions of weakly bound complexes with a finite size quantum liquid (the helium droplet). The acetylene dimer is attractive from this point of view because one of its deformation coordinates promotes a tunneling isomerization process. A numerical simulation of the observed spectrum allows deriving a set of effective spectroscopic constants which help understanding the dynamical role played by the droplet on the rotation and deformation of the dimer.

Graphical abstract: Dynamics of acetylene dimers hosted in helium droplets

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Article information

16 Nov 2017
31 Dec 2017
First published
02 Jan 2018

Phys. Chem. Chem. Phys., 2018,20, 2597-2605
Article type

Dynamics of acetylene dimers hosted in helium droplets

M. Briant, E. Mengesha, M.-A. Gaveau, B. Soep, J.-M. Mestdagh and L. Poisson, Phys. Chem. Chem. Phys., 2018, 20, 2597
DOI: 10.1039/C7CP07741F

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