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- H. S. Gutowsky
- Noyes Chemical Laboratory, University of Illinois, Urbana, Illinois
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- E. O. Stejskal
- Noyes Chemical Laboratory, University of Illinois, Urbana, Illinois
書誌事項
- 公開日
- 1954-05-01
- DOI
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- 10.1063/1.1740221
- 公開者
- AIP Publishing
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説明
<jats:p>The infrared absorption spectrum of Si2H6 gas has been observed from 350 to 4000 cm—1. Four of the five infrared active fundamentals have been found and assigned (ν5 and ν6, ‖ bands at 2154.4 and 842.7 cm—1; ν7 and ν8, ⊥ bands at 2181.1 and 945.7 cm—1). The Q branches of ν7 and ν8 were observed with moderate dispersion and the spacings measured as 2.435 and 3.42 cm—1. These spacings are consistent with the Coriolis interaction in a symmetric top without internal rotation, but they do not agree with the spacings predicted by assuming free internal rotation. The general appearance of ν7 and ν8 in disilane is similar to these bands in ethane, suggesting comparable potential barriers to internal rotation. In the course of the experiments it was found that disilane decomposes slowly at room temperature into SiH4 and that in the preparation of disilane from Si2Cl6, the Si–Si bond is cleaved by an excess of LiAlH4, producing SiH4.</jats:p>
収録刊行物
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- The Journal of Chemical Physics
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The Journal of Chemical Physics 22 (5), 939-943, 1954-05-01
AIP Publishing
