ChemInform Abstract: INFRARED AND RAMAN SPECTRA, VIBRATIONAL ASSIGNMENT AND BARRIERS TO INTERNAL ROTATION FOR METHYLDISILYLAMINE

1978 ◽  
Vol 9 (4) ◽  
Author(s):  
J. R. DURIG ◽  
P. J. COOPER
Keyword(s):  
Internal Rotation ◽  
Raman Spectra ◽  
Infrared And Raman Spectra ◽  
Vibrational Assignment ◽  
Barriers To Internal Rotation

Spectra and Structure of Silicon-Containing Compounds. XII. Infrared and Raman Spectra of Trimethylvinylsilane and Trimethyl-D9-vinylsilane

1980 ◽  
Vol 34 (1) ◽  
pp. 60-65 ◽  
Author(s):  
J. R. Durig ◽  
W. J. Natter ◽  
M. Johnson-Streusand
Keyword(s):  
Internal Rotation ◽  
Raman Spectra ◽  
Infrared Spectra ◽  
Isotopic Substitution ◽  
Infrared And Raman Spectra ◽  
Vibrational Assignment ◽  
Infrared Band ◽  
Frequency Shifts ◽  
Solid States ◽  
Barriers To Internal Rotation

The Raman spectra (0 to 3300 cm−1) of (CH3)3Si(CHCH2) and (CD3)3Si(CHCH2) in the gaseous, liquid and solid states have been recorded. The infrared spectra (20 to 3300 cm−1) of the same two compounds in the gaseous and solid states have also been recorded. A vibrational assignment based upon depolarization ratios, frequency shifts with isotopic substitution, infrared band contours, and group frequencies is proposed. The SiC3 torsion was observed at 55 and 50 cm−1 for the “light” and “heavy” molecules, respectively, and the barriers to internal rotation were calculated to be 0.73 kcal/mol and 0.64 kcal/mol for the light and heavy compounds, respectively. These results are compared to the corresponding data for similar molecules.

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