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Kinetic Laser Absorption Spectroscopy of Vibrationally Excited Hydroxyl Radicals on Infrared Transitions ν = 3 ← 1 and ν = 4 ← 2. / Plastinina, Daria M.; Chesnokov, Evgeni N.; Koshlyakov, Pavel V. et al.

In: Molecules, Vol. 30, No. 3, 540, 24.01.2025.

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

Harvard

Plastinina, DM, Chesnokov, EN, Koshlyakov, PV & Krasnoperov, LN 2025, 'Kinetic Laser Absorption Spectroscopy of Vibrationally Excited Hydroxyl Radicals on Infrared Transitions ν = 3 ← 1 and ν = 4 ← 2', Molecules, vol. 30, no. 3, 540. https://doi.org/10.3390/molecules30030540

APA

Plastinina, D. M., Chesnokov, E. N., Koshlyakov, P. V., & Krasnoperov, L. N. (2025). Kinetic Laser Absorption Spectroscopy of Vibrationally Excited Hydroxyl Radicals on Infrared Transitions ν = 3 ← 1 and ν = 4 ← 2. Molecules, 30(3), [540]. https://doi.org/10.3390/molecules30030540

Vancouver

Plastinina DM, Chesnokov EN, Koshlyakov PV, Krasnoperov LN. Kinetic Laser Absorption Spectroscopy of Vibrationally Excited Hydroxyl Radicals on Infrared Transitions ν = 3 ← 1 and ν = 4 ← 2. Molecules. 2025 Jan 24;30(3):540. doi: 10.3390/molecules30030540

Author

Plastinina, Daria M. ; Chesnokov, Evgeni N. ; Koshlyakov, Pavel V. et al. / Kinetic Laser Absorption Spectroscopy of Vibrationally Excited Hydroxyl Radicals on Infrared Transitions ν = 3 ← 1 and ν = 4 ← 2. In: Molecules. 2025 ; Vol. 30, No. 3.

BibTeX

@article{8c611c357d9147cc8484b7caba40af44,
title = "Kinetic Laser Absorption Spectroscopy of Vibrationally Excited Hydroxyl Radicals on Infrared Transitions ν = 3 ← 1 and ν = 4 ← 2",
abstract = "The kinetics of vibrationally excited OH(ν = 1) and OH(ν = 2) radicals was studied by time-resolved laser absorption in the overtone IR region. Two DFB laser diodes, 1509.3 and 1589 nm, were used. The technique allowed for the reliable study of the vibrational relaxation kinetics as well as the relative populations of the vibrationally excited states. The yields of OH(ν = 1) and OH(ν = 2) in the reaction O(1D) + H2O were determined. The rate constant of OH(ν = 1) relaxation in collision with water molecules was obtained ((9.2 ± 2.0) × 10−12 cm3/s). The dynamics of OH(ν = 1) and OH(ν = 2) populations were analyzed in detail, which made it possible to separately determine the relative contribution of the vibrational ladder relaxation channels OH(ν = 2) → OH(ν = 1) → OH(ν = 0) and the direct relaxation OH(ν = 2) → OH(ν = 0).",
keywords = "DFB laser diode, overtone spectroscopy, vibrational relaxation, vibrationally excited hydroxyl radical",
author = "Plastinina, {Daria M.} and Chesnokov, {Evgeni N.} and Koshlyakov, {Pavel V.} and Krasnoperov, {Lev N.}",
note = "This research was funded by the Russian Science Foundation, grant number 19-73-20060.",
year = "2025",
month = jan,
day = "24",
doi = "10.3390/molecules30030540",
language = "English",
volume = "30",
journal = "Molecules",
issn = "1420-3049",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "3",

}

RIS

TY - JOUR

T1 - Kinetic Laser Absorption Spectroscopy of Vibrationally Excited Hydroxyl Radicals on Infrared Transitions ν = 3 ← 1 and ν = 4 ← 2

AU - Plastinina, Daria M.

AU - Chesnokov, Evgeni N.

AU - Koshlyakov, Pavel V.

AU - Krasnoperov, Lev N.

N1 - This research was funded by the Russian Science Foundation, grant number 19-73-20060.

PY - 2025/1/24

Y1 - 2025/1/24

N2 - The kinetics of vibrationally excited OH(ν = 1) and OH(ν = 2) radicals was studied by time-resolved laser absorption in the overtone IR region. Two DFB laser diodes, 1509.3 and 1589 nm, were used. The technique allowed for the reliable study of the vibrational relaxation kinetics as well as the relative populations of the vibrationally excited states. The yields of OH(ν = 1) and OH(ν = 2) in the reaction O(1D) + H2O were determined. The rate constant of OH(ν = 1) relaxation in collision with water molecules was obtained ((9.2 ± 2.0) × 10−12 cm3/s). The dynamics of OH(ν = 1) and OH(ν = 2) populations were analyzed in detail, which made it possible to separately determine the relative contribution of the vibrational ladder relaxation channels OH(ν = 2) → OH(ν = 1) → OH(ν = 0) and the direct relaxation OH(ν = 2) → OH(ν = 0).

AB - The kinetics of vibrationally excited OH(ν = 1) and OH(ν = 2) radicals was studied by time-resolved laser absorption in the overtone IR region. Two DFB laser diodes, 1509.3 and 1589 nm, were used. The technique allowed for the reliable study of the vibrational relaxation kinetics as well as the relative populations of the vibrationally excited states. The yields of OH(ν = 1) and OH(ν = 2) in the reaction O(1D) + H2O were determined. The rate constant of OH(ν = 1) relaxation in collision with water molecules was obtained ((9.2 ± 2.0) × 10−12 cm3/s). The dynamics of OH(ν = 1) and OH(ν = 2) populations were analyzed in detail, which made it possible to separately determine the relative contribution of the vibrational ladder relaxation channels OH(ν = 2) → OH(ν = 1) → OH(ν = 0) and the direct relaxation OH(ν = 2) → OH(ν = 0).

KW - DFB laser diode

KW - overtone spectroscopy

KW - vibrational relaxation

KW - vibrationally excited hydroxyl radical

UR - https://www.mendeley.com/catalogue/67c8bd28-6171-3c26-999b-21a68a8b777d/

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85217576997&origin=inward&txGid=49ae714da7cd64dc5fc570724f94dedb

U2 - 10.3390/molecules30030540

DO - 10.3390/molecules30030540

M3 - Article

C2 - 39942644

VL - 30

JO - Molecules

JF - Molecules

SN - 1420-3049

IS - 3

M1 - 540

ER -

ID: 64737533