The vibrational spectrum of the OCS molecule based on the data on spectra of liquid and cryosolutions
The IR absorption spectra of liquid OCS ( T = 135(1) K) and of the following solutions—OCS + Ar ( T = 90 K), OCS + N 2 ( T = 90 K), OCS + Kr ( T = 130 K), and OCS + Xe ( T = 163 K)—are measured in the range 800–7000 cm −1 . From 16 to 40 bands corresponding to transitions to vibrational states up to...
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Published in | Optics and spectroscopy Vol. 105; no. 2; pp. 242 - 250 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
SP MAIK Nauka/Interperiodica
2008
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | The IR absorption spectra of liquid OCS (
T
= 135(1) K) and of the following solutions—OCS + Ar (
T
= 90 K), OCS + N
2
(
T
= 90 K), OCS + Kr (
T
= 130 K), and OCS + Xe (
T
= 163 K)—are measured in the range 800–7000 cm
−1
. From 16 to 40 bands corresponding to transitions to vibrational states up to the third order inclusive are interpreted for basic isotope modification and for the isotopically substituted molecules
18
O
12
C
32
S,
16
O
13
C
32
S, and
16
O
12
C
34
S. In the spectra of the liquids, the spectral moments
M
(1) and
M
(2) of all the observed bands are determined. The harmonic frequencies ω
i
and the anharmonicity constants
x
ik
are calculated for all the systems, including the liquid. The anharmonicity is found to be constant within the experimental error. A large shift Δω
3
is primarily determined by the dipole-induced dipole interaction. |
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ISSN: | 0030-400X 1562-6911 |
DOI: | 10.1134/S0030400X08080122 |