Vibrational relaxation of S2(a1Δg) by collisions with SF6 and CF4

被引：3

作者：

Tendo, Shogo ^{[1
]}

Tanimoto, Haruka ^{[1
]}

Uchiyama, Tohru ^{[1
]}

Goto, Hiroki ^{[1
]}

Hara, Ayano ^{[1
,2
]}

Fujihara, Keigo ^{[1
]}

Kohguchi, Hiroshi ^{[1
]}

Yamasaki, Katsuyoshi ^{[1
]}

机构：

[1] Hiroshima Univ, Dept Chem, Grad Sch Sci, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 7398526, Japan

[2] Kyoto Univ, Dept Chem, Grad Sch Sci, Sakyo ku, Kitashirakawa Oiwake Cho, Kyoto 6068502, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2017年 / 684卷

关键词：

Disulfur; Vibrational relaxation; Rate coefficient; Laser-induced fluorescence; Integrated profiles method; RATE CONSTANTS; OCS; PHOTOLYSIS; LIFETIMES; ATOMS; O-2; N2O; N-2; CO2; O2;

D O I：

10.1016/j.cplett.2017.06.030

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：

Irradiation of the pulsed laser light at 248 nm to the gaseous mixture of OCS and He generated vibrationally excited S-2(a(1)Delta(g), v = 2-4) by the S(D-1) + OCS reaction. A single vibrational level of S-2 (a(1)Delta(g)) was detected with laser-induced fluorescence (LIF) via the f(1) Delta(u) - a(1)Delta(g) transition. The rate coefficients for energy transfer from vibrational levels v = 2 and 3 of S-2(a(1)Delta(g)) SF6 and CF4 have been determined from the time-resolved LIF intensities recorded at varying pressures of SF6 and CF4. The reduced probability of energy transfer per collision derived from the rate coefficients enabled us to identify the v(4) mode of SF6 and CF4 as the energy-accepting vibration. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：171 / 176

页数：6

共 42 条

[1] DIRECT OBSERVATION OF S(31D2) AND DETERMINATION OF THE ABSOLUTE RATE OF REACTION WITH OCS
ADDISON, MC
BYRNE, CD
DONOVAN, RJ
[J]. CHEMICAL PHYSICS LETTERS, 1979, 64 (01) : 57 - 59
[2] [Anonymous], 1980, Kinetics and Dynamics of Elementary Gas Reactions: Butterworths Monographs in Chemistry and Chemical Engineering
[3] [Anonymous], 1979, Molecular Spectra and Molecular Siructure: IV. Constants of Diatomic Molecules
[4] NEAR-INFRARED EMISSIONS FROM THE 1-DELTA-G AND 1-SIGMA+-G STATES OF S2
BARNES, I
BECKER, KH
FINK, EH
[J]. CHEMICAL PHYSICS LETTERS, 1979, 67 (2-3) : 314 - 317
[5] Bernath P. F., 2005, SPECTRA ATOMS MOL
[6] BRANCHING RATIOS FOR QUENCHING AND REACTION IN THE INTERACTION OF S(1D2) WITH VARIOUS GASES
BLACK, G
[J]. JOURNAL OF CHEMICAL PHYSICS, 1986, 84 (03) : 1345 - 1348
[7] VAN DER WAALS VOLUMES + RADII
BONDI, A
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1964, 68 (03) : 441 - +
[8] Herzberg G., 1966, ELECT SPECTRA ELECT
[9] Herzberg G., 1945, Infrared and Raman Spectra of Polyatomic Molecules
[10] Formation and relaxation of O2(X3Σg-) in high vibrational levels (18≤v≤23) in the photolysis of O3 at 266 nm
Hickson, KM
Sharkey, P
Smith, IWM
Symonds, AC
Tuckett, RP
Ward, GN
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1998, 94 (04): : 533 - 540

← 1 2 3 4 5 →