Dynamics of acetylene dimers hosted in helium droplets

被引：9

作者：

Briant, M. ^{[1
]}

Mengesha, E. ^{[1
,2
]}

Gaveau, M. -A. ^{[1
]}

Soep, B. ^{[1
]}

Mestdagh, J. -M. ^{[1
]}

Poisson, L. ^{[1
]}

机构：

[1] Univ Paris Saclay, CNRS, LIDYL, CEA Saclay,CEA, F-91191 Gif Sur Yvette, France

[2] Haramaya Univ, Coll Nat & Computat Sci, Dept Chem, POB 138, Dire Dawa, Ethiopia

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2018年 / 20卷 / 04期

关键词：

INFRARED-ABSORPTION SPECTROSCOPY; TUNNELING MOTION; NANODROPLETS; COMPLEXES; MICROWAVE; CLUSTERS; (HCCH)2; REGION;

D O I：

10.1039/c7cp07741f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：2597 / 2605

页数：9

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