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Optics and Spectroscopy, 2020, Volume 128, Issue 10, Pages 1478–1487
DOI: https://doi.org/10.21883/OS.2020.10.50018.157-20
(Mi os279)
 

This article is cited in 4 scientific papers (total in 4 papers)

Spectroscopy of condensed matter

High resolution IR spectroscopy of low temperature matrices. The structure of fundamental absorption bands of SiH$_{4}$ in nitrogen and argon matrices

R. E. Asfin, M. V. Buturlimova, T. D. Kolomiitsova, I. K. Tokhadze, K. G. Tokhadze, D. N. Shchepkin

Saint Petersburg State University
Abstract: The features of high resolution IR spectra of the SiH$_{4}$ molecule in N$_2$ and Ar low-temperature matrices at 6.6–20 K were analyzed depending on experimental conditions. It was found, that in the nitrogen matrix in region of stretching vibration of $^{28}$SiH$_{4}$ three narrow bands are observed, in the region of bending vibration ($\nu_4$) two bands are observed instead of one, which is explained by a change in the symmetry of the molecule from $T_d$ in the gas phase to $C_{3v}$ in solid nitrogen. In the argon matrix spectra change even more, where, in addition to narrow bands, the broad enough components are also recorded. The calculations of the SiH$_{4}$ spectrum in the Ar matrix were performed based on the QM/MM approach, which confirm the reality of the change in the symmetry of the molecule as a result of its interaction with the matrix environment.
Keywords: monoisotopic silane, matrix isolation, QM/MM calculations, matrix effects, change in the symmetry of a molecule.
Funding agency Grant number
Russian Foundation for Basic Research 18-03-00520
This work was supported by the Russian Foundation for Basic Research, grant no. 18-03-00520.
English version:
Optics and Spectroscopy, 2020, Volume 128, Issue 10, Pages 1588–1597
DOI: https://doi.org/10.1134/S0030400X20100057
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: R. E. Asfin, M. V. Buturlimova, T. D. Kolomiitsova, I. K. Tokhadze, K. G. Tokhadze, D. N. Shchepkin, “High resolution IR spectroscopy of low temperature matrices. The structure of fundamental absorption bands of SiH$_{4}$ in nitrogen and argon matrices”, Optics and Spectroscopy, 128:10 (2020), 1478–1487; Optics and Spectroscopy, 128:10 (2020), 1588–1597
Citation in format AMSBIB
\Bibitem{AsfButKol20}
\by R.~E.~Asfin, M.~V.~Buturlimova, T.~D.~Kolomiitsova, I.~K.~Tokhadze, K.~G.~Tokhadze, D.~N.~Shchepkin
\paper High resolution IR spectroscopy of low temperature matrices. The structure of fundamental absorption bands of SiH$_{4}$ in nitrogen and argon matrices
\jour Optics and Spectroscopy
\yr 2020
\vol 128
\issue 10
\pages 1478--1487
\mathnet{http://mi.mathnet.ru/os279}
\crossref{https://doi.org/10.21883/OS.2020.10.50018.157-20}
\elib{https://elibrary.ru/item.asp?id=44154148}
\transl
\jour Optics and Spectroscopy
\yr 2020
\vol 128
\issue 10
\pages 1588--1597
\crossref{https://doi.org/10.1134/S0030400X20100057}
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  • https://www.mathnet.ru/eng/os/v128/i10/p1478
  • This publication is cited in the following 4 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Optics and Spectroscopy Optics and Spectroscopy
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