A time domain photoacoustic study of the collisional relaxation of vibrationally excited H2

Thomas G. Kreutz; Jack Gelfand; Richard B. Miles; Herschel Rabitz

doi:10.1016/0301-0104(88)87060-5

A time domain photoacoustic study of the collisional relaxation of vibrationally excited H₂

Thomas G. Kreutz, Jack Gelfand, Richard B. Miles, Herschel Rabitz

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

We report the first direct measurement of the vibration-to-vibration (V-V) and vibration-to-translation (V-T) rates for vibrational relaxation out of the ν=2 vibrational level in hydrogen gas. Time domain photoacoustic spectroscopy was used to monitor the collision dynamics after excitation into ν=2 through overtone stimulated Raman pumping. The V-V relaxation rate is found to be (1-4) × 10^-14 cm³ s^-1 molecule^-1 and the V-T rate constant is (0.6-2) × 10^-15 cm³ s^-1 molecule^-1 for normal hydrogen at 298 K.

Original language	English (US)
Pages (from-to)	359-369
Number of pages	11
Journal	Chemical Physics
Volume	124
Issue number	3
DOIs	https://doi.org/10.1016/0301-0104(88)87060-5
State	Published - Sep 1 1988

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

Access to Document

10.1016/0301-0104(88)87060-5

Cite this

@article{e50f3750080d47e0adbef9e859931f75,

title = "A time domain photoacoustic study of the collisional relaxation of vibrationally excited H2",

abstract = "We report the first direct measurement of the vibration-to-vibration (V-V) and vibration-to-translation (V-T) rates for vibrational relaxation out of the ν=2 vibrational level in hydrogen gas. Time domain photoacoustic spectroscopy was used to monitor the collision dynamics after excitation into ν=2 through overtone stimulated Raman pumping. The V-V relaxation rate is found to be (1-4) × 10-14 cm3 s-1 molecule-1 and the V-T rate constant is (0.6-2) × 10-15 cm3 s-1 molecule-1 for normal hydrogen at 298 K.",

author = "Kreutz, {Thomas G.} and Jack Gelfand and Miles, {Richard B.} and Herschel Rabitz",

year = "1988",

month = sep,

day = "1",

doi = "10.1016/0301-0104(88)87060-5",

language = "English (US)",

volume = "124",

pages = "359--369",

journal = "Chemical Physics",

issn = "0301-0104",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - A time domain photoacoustic study of the collisional relaxation of vibrationally excited H2

AU - Kreutz, Thomas G.

AU - Gelfand, Jack

AU - Miles, Richard B.

AU - Rabitz, Herschel

PY - 1988/9/1

Y1 - 1988/9/1

N2 - We report the first direct measurement of the vibration-to-vibration (V-V) and vibration-to-translation (V-T) rates for vibrational relaxation out of the ν=2 vibrational level in hydrogen gas. Time domain photoacoustic spectroscopy was used to monitor the collision dynamics after excitation into ν=2 through overtone stimulated Raman pumping. The V-V relaxation rate is found to be (1-4) × 10-14 cm3 s-1 molecule-1 and the V-T rate constant is (0.6-2) × 10-15 cm3 s-1 molecule-1 for normal hydrogen at 298 K.

AB - We report the first direct measurement of the vibration-to-vibration (V-V) and vibration-to-translation (V-T) rates for vibrational relaxation out of the ν=2 vibrational level in hydrogen gas. Time domain photoacoustic spectroscopy was used to monitor the collision dynamics after excitation into ν=2 through overtone stimulated Raman pumping. The V-V relaxation rate is found to be (1-4) × 10-14 cm3 s-1 molecule-1 and the V-T rate constant is (0.6-2) × 10-15 cm3 s-1 molecule-1 for normal hydrogen at 298 K.

UR - http://www.scopus.com/inward/record.url?scp=0001132586&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001132586&partnerID=8YFLogxK

U2 - 10.1016/0301-0104(88)87060-5

DO - 10.1016/0301-0104(88)87060-5

M3 - Article

AN - SCOPUS:0001132586

SN - 0301-0104

VL - 124

SP - 359

EP - 369

JO - Chemical Physics

JF - Chemical Physics

IS - 3

ER -

A time domain photoacoustic study of the collisional relaxation of vibrationally excited H₂

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this