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Tungsten Isotope-Specific UV-Photodecomposition of W(CO)6 at 266 nm. / Ershov, Kirill S.; Kochubei, Sergei A.; Baklanov, Alexey V.

In: The journal of physical chemistry. A, Vol. 123, No. 36, 12.09.2019, p. 7751-7757.

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

Harvard

Ershov, KS, Kochubei, SA & Baklanov, AV 2019, 'Tungsten Isotope-Specific UV-Photodecomposition of W(CO)6 at 266 nm', The journal of physical chemistry. A, vol. 123, no. 36, pp. 7751-7757. https://doi.org/10.1021/acs.jpca.9b06793

APA

Ershov, K. S., Kochubei, S. A., & Baklanov, A. V. (2019). Tungsten Isotope-Specific UV-Photodecomposition of W(CO)6 at 266 nm. The journal of physical chemistry. A, 123(36), 7751-7757. https://doi.org/10.1021/acs.jpca.9b06793

Vancouver

Ershov KS, Kochubei SA, Baklanov AV. Tungsten Isotope-Specific UV-Photodecomposition of W(CO)6 at 266 nm. The journal of physical chemistry. A. 2019 Sept 12;123(36):7751-7757. doi: 10.1021/acs.jpca.9b06793

Author

Ershov, Kirill S. ; Kochubei, Sergei A. ; Baklanov, Alexey V. / Tungsten Isotope-Specific UV-Photodecomposition of W(CO)6 at 266 nm. In: The journal of physical chemistry. A. 2019 ; Vol. 123, No. 36. pp. 7751-7757.

BibTeX

@article{948cab27563847768413710442a39448,
title = "Tungsten Isotope-Specific UV-Photodecomposition of W(CO)6 at 266 nm",
abstract = "UV photodissociation of tungsten hexacarbonyl W(CO)6 has been studied in the molecular beam conditions using time-of-flight mass spectrometry and velocity map imaging. Irradiation of W(CO)6 by pulsed laser radiation at 266 nm results in the appearance of singly and doubly charged tungsten ions. The isotope composition of these ions deviates essentially from natural abundance with deviation being pulse energy-dependent. The velocity map images of the tungsten ions indicate proceeding of several, more than two, parallel channels (sequences of the one-photon processes) of photodissociation, giving rise to tungsten atoms. Isotope effect is assigned to appear in a one-photon bound-bound transition in W(CO) intermediate followed by its predissociation. In the model suggested, the final state of this transition is a vibronic state with excited vibrational mode of W-C stretching vibration. This vibrational excitation is responsible for isotopic shift in the location of the final state. The suggested model fits the observed isotopic composition quantitatively.",
author = "Ershov, {Kirill S.} and Kochubei, {Sergei A.} and Baklanov, {Alexey V.}",
note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",
year = "2019",
month = sep,
day = "12",
doi = "10.1021/acs.jpca.9b06793",
language = "English",
volume = "123",
pages = "7751--7757",
journal = "Journal of Physical Chemistry A",
issn = "1089-5639",
publisher = "American Chemical Society",
number = "36",

}

RIS

TY - JOUR

T1 - Tungsten Isotope-Specific UV-Photodecomposition of W(CO)6 at 266 nm

AU - Ershov, Kirill S.

AU - Kochubei, Sergei A.

AU - Baklanov, Alexey V.

N1 - Publisher Copyright: © 2019 American Chemical Society.

PY - 2019/9/12

Y1 - 2019/9/12

N2 - UV photodissociation of tungsten hexacarbonyl W(CO)6 has been studied in the molecular beam conditions using time-of-flight mass spectrometry and velocity map imaging. Irradiation of W(CO)6 by pulsed laser radiation at 266 nm results in the appearance of singly and doubly charged tungsten ions. The isotope composition of these ions deviates essentially from natural abundance with deviation being pulse energy-dependent. The velocity map images of the tungsten ions indicate proceeding of several, more than two, parallel channels (sequences of the one-photon processes) of photodissociation, giving rise to tungsten atoms. Isotope effect is assigned to appear in a one-photon bound-bound transition in W(CO) intermediate followed by its predissociation. In the model suggested, the final state of this transition is a vibronic state with excited vibrational mode of W-C stretching vibration. This vibrational excitation is responsible for isotopic shift in the location of the final state. The suggested model fits the observed isotopic composition quantitatively.

AB - UV photodissociation of tungsten hexacarbonyl W(CO)6 has been studied in the molecular beam conditions using time-of-flight mass spectrometry and velocity map imaging. Irradiation of W(CO)6 by pulsed laser radiation at 266 nm results in the appearance of singly and doubly charged tungsten ions. The isotope composition of these ions deviates essentially from natural abundance with deviation being pulse energy-dependent. The velocity map images of the tungsten ions indicate proceeding of several, more than two, parallel channels (sequences of the one-photon processes) of photodissociation, giving rise to tungsten atoms. Isotope effect is assigned to appear in a one-photon bound-bound transition in W(CO) intermediate followed by its predissociation. In the model suggested, the final state of this transition is a vibronic state with excited vibrational mode of W-C stretching vibration. This vibrational excitation is responsible for isotopic shift in the location of the final state. The suggested model fits the observed isotopic composition quantitatively.

UR - http://www.scopus.com/inward/record.url?scp=85072133320&partnerID=8YFLogxK

U2 - 10.1021/acs.jpca.9b06793

DO - 10.1021/acs.jpca.9b06793

M3 - Article

C2 - 31414805

AN - SCOPUS:85072133320

VL - 123

SP - 7751

EP - 7757

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

SN - 1089-5639

IS - 36

ER -

ID: 21540702