Mid-infrared spectra of silane dispersed in solid neon

Ogilvie, J. F.; Chou, Sheng‐Lung; Peng, Yu‐Chain; Lo, Jen‐Iu; Cheng, Bing‐Ming

doi:10.1016/j.saa.2019.117838

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…Система для подготовки матриц и регистрации их спектров представлена на рис. [11][12][13]. В качестве матричных газов использовались аргон и азот чистоты 99.99%.…”

Section: регистрация спектровunclassified

ИК спектроскопия высокого разрешения в низкотемпературных матрицах. Структура фундаментальных полос поглощения SiH-=SUB=-4-=/SUB=- в азотной и аргоновой матрицах

Асфин¹,

Бутурлимова²,

Коломийцова³

et al. 2020

Журнал Технической Физики

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The features of high resolution IR spectra of the SiH4 molecule in N2 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 28SiH4 three narrow bands are observed, in the region of bending vibration (ν4) two bands are observed instead of one, which is explained by a change in the symmetry of the molecule from Td in the gas phase to C3v 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 SiH4 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.

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Section: регистрация спектровunclassified

ИК спектроскопия высокого разрешения в низкотемпературных матрицах. Структура фундаментальных полос поглощения SiH-=SUB=-4-=/SUB=- в азотной и аргоновой матрицах

Асфин¹,

Бутурлимова²,

Коломийцова³

et al. 2020

Журнал Технической Физики

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Formation and IR spectrum of monobridged Si2H4 isolated in solid argon

Lin

Chou

Lin

et al. 2020

The Journal of Chemical Physics

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The infrared (IR) spectrum of monobridged Si2H4 (denoted as mbr-Si2H4) isolated in solid Ar was recorded, and a set of lines (in the major matrix site) observed at 858.3 cm−1, 971.5 cm−1, 999.2 cm−1, 1572.7 cm−1, 2017.7 cm−1, 2150.4 cm−1, and 2158.4 cm−1 were characterized. The species was produced by the electron bombardment of an Ar matrix sample containing a small proportion of SiH4 during matrix deposition. Upon photolysis of the matrix samples using 365 nm and 160 nm light, the content of mbr-Si2H4 increased. The band positions, relative intensity ratios, and D-isotopic shift ratios of the observed IR features are generally in good agreement with those predicted by the B3LYP/aug-cc-pVTZ method. In addition, the photochemistry of the observed products was discussed.

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