High-Resolution IR Spectroscopy in Low-Temperature Matrices. Structure of Fundamental Absorption Bands of SiH4 in Nitrogen and Argon Matrices

Standard

High-Resolution IR Spectroscopy in Low-Temperature Matrices. Structure of Fundamental Absorption Bands of SiH₄ in Nitrogen and Argon Matrices. / Asfin, R. E.; Buturlimova, M. V.; Kolomiitsova, T. D.; Tokhadze, I. K.; Tokhadze, K. G.; Shchepkin, D. N.

In: OPTICS AND SPECTROSCOPY, Vol. 128, No. 10, 01.10.2020, p. 1588-1597.

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

BibTeX

@article{3731dfbea3d5488e95e80c545840e583,

title = "High-Resolution IR Spectroscopy in Low-Temperature Matrices. Structure of Fundamental Absorption Bands of SiH4 in Nitrogen and Argon Matrices",

abstract = "Features of the high-resolution IR spectra of the SiH4 molecule in low-temperature matrices of N-2 and Ar at 6.6-20 K, depending on the experimental conditions, are analyzed. It was found that, in the nitrogen matrix, in the stretching region of (SiH4)-Si-28, three narrow bands are observed and, in the region of bending vibration (nu(4)), there are two monomer bands instead of one, which is explained by the change in the symmetry of the molecule from T-d in gas to in solid nitrogen. The spectra in the argon matrix change even more, where, in addition to narrow bands, rather wide components are also detected. The spectrum of SiH4 in an Ar matrix was calculated based on the QM/MM approach, which confirms the reality of the change in the symmetry of the molecule as a result of its interaction with the matrix environment.",

keywords = "change in molecular symmetry, matrix effects, matrix isolation, monoisotopic silane, QM/MM calculations, INFRARED-SPECTRA, MOLECULE, RESONANCE INTERACTIONS, SILANE, GEH4, RAMAN GAS SPECTRA, DIMERS",

author = "Asfin, {R. E.} and Buturlimova, {M. V.} and Kolomiitsova, {T. D.} and Tokhadze, {I. K.} and Tokhadze, {K. G.} and Shchepkin, {D. N.}",

note = "Asfin, R.E., Buturlimova, M.V., Kolomiitsova, T.D. et al. High-Resolution IR Spectroscopy in Low-Temperature Matrices. Structure of Fundamental Absorption Bands of SiH4 in Nitrogen and Argon Matrices. Opt. Spectrosc. 128, 1588–1597 (2020). https://doi.org/10.1134/S0030400X20100057",

year = "2020",

month = oct,

day = "1",

doi = "10.1134/S0030400X20100057",

language = "English",

volume = "128",

pages = "1588--1597",

journal = "OPTICS AND SPECTROSCOPY",

issn = "0030-400X",

publisher = "Pleiades Publishing",

number = "10",

}

RIS

TY - JOUR

T1 - High-Resolution IR Spectroscopy in Low-Temperature Matrices. Structure of Fundamental Absorption Bands of SiH4 in Nitrogen and Argon Matrices

AU - Asfin, R. E.

AU - Buturlimova, M. V.

AU - Kolomiitsova, T. D.

AU - Tokhadze, I. K.

AU - Tokhadze, K. G.

AU - Shchepkin, D. N.

N1 - Asfin, R.E., Buturlimova, M.V., Kolomiitsova, T.D. et al. High-Resolution IR Spectroscopy in Low-Temperature Matrices. Structure of Fundamental Absorption Bands of SiH4 in Nitrogen and Argon Matrices. Opt. Spectrosc. 128, 1588–1597 (2020). https://doi.org/10.1134/S0030400X20100057

PY - 2020/10/1

Y1 - 2020/10/1

N2 - Features of the high-resolution IR spectra of the SiH4 molecule in low-temperature matrices of N-2 and Ar at 6.6-20 K, depending on the experimental conditions, are analyzed. It was found that, in the nitrogen matrix, in the stretching region of (SiH4)-Si-28, three narrow bands are observed and, in the region of bending vibration (nu(4)), there are two monomer bands instead of one, which is explained by the change in the symmetry of the molecule from T-d in gas to in solid nitrogen. The spectra in the argon matrix change even more, where, in addition to narrow bands, rather wide components are also detected. The spectrum of SiH4 in an Ar matrix was calculated based on the QM/MM approach, which confirms the reality of the change in the symmetry of the molecule as a result of its interaction with the matrix environment.

AB - Features of the high-resolution IR spectra of the SiH4 molecule in low-temperature matrices of N-2 and Ar at 6.6-20 K, depending on the experimental conditions, are analyzed. It was found that, in the nitrogen matrix, in the stretching region of (SiH4)-Si-28, three narrow bands are observed and, in the region of bending vibration (nu(4)), there are two monomer bands instead of one, which is explained by the change in the symmetry of the molecule from T-d in gas to in solid nitrogen. The spectra in the argon matrix change even more, where, in addition to narrow bands, rather wide components are also detected. The spectrum of SiH4 in an Ar matrix was calculated based on the QM/MM approach, which confirms the reality of the change in the symmetry of the molecule as a result of its interaction with the matrix environment.

KW - change in molecular symmetry

KW - matrix effects

KW - matrix isolation

KW - monoisotopic silane

KW - QM/MM calculations

KW - INFRARED-SPECTRA

KW - MOLECULE

KW - RESONANCE INTERACTIONS

KW - SILANE

KW - GEH4

KW - RAMAN GAS SPECTRA

KW - DIMERS

UR - http://www.scopus.com/inward/record.url?scp=85094664189&partnerID=8YFLogxK

U2 - 10.1134/S0030400X20100057

DO - 10.1134/S0030400X20100057

M3 - Article

AN - SCOPUS:85094664189

VL - 128

SP - 1588

EP - 1597

JO - OPTICS AND SPECTROSCOPY

JF - OPTICS AND SPECTROSCOPY

SN - 0030-400X

IS - 10

ER -

ID: 71031640