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ID 37643
file
creator
Muraoka, Azusa
Nagata, Takashi
NDC
Chemistry
abstract
Infrared photodissociation (IRPD) spectra of carbon dioxide cluster ions,(CO2)n+ with n=3–8, are measured in the1000–3800 cm–1 region. IR bands assignable to solvent CO 2 molecules are observed at positions close to the vibrational frequencies of neutral CO 2 [1290 and 1400 cm–1 (ν1 and 2ν2),2350 cm–1 (ν3), and 3610 and 3713 cm–1 (ν1 + ν 3 and 2ν2 + ν3)]. The ion core in (CO2)n+ shows several IR bands in the 1200–1350, 2100–2200, and3250–3500 cm–1 regions. On the basis of previous IR studies in solid Ne and quantum chemical calculations, these bands are ascribed to the C2O+4 ion, which has a semicovalent bond between the CO2 components. The number of the bands and the bandwidth of the IRPD spectra drastically change with an increase in the cluster size up to n=6 , which is ascribed to the symmetry change of (CO2)n+ by the solvation of CO2 molecules and a full occupation of the first solvation shell at n=6.
journal title
The Journal of Chemical Physics
volume
Volume 129
issue
Issue 4
start page
044308-1
end page
044308-9
date of issued
2008-07-25
publisher
American Institute of Physics
issn
0021-9606
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2008 American Institute of Physics
relation is version of URL
http://dx.doi.org/10.1063/1.2953710
department
Graduate School of Science



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