ChemInform Abstract: Ring Puckering Combinations with the Totally Symmetric Ring Stretching Vibration in Some Deuterated Analogs of Trimethylene Oxide as Resolved by CARS.

1984 ◽  
Vol 15 (26) ◽  
Author(s):  
H. FIETZ ◽  
W. KIEFER ◽  
T. L. SMITHSON ◽  
H. WIESER
Keyword(s):  
Trimethylene Oxide ◽  
Stretching Vibration ◽  
Ring Puckering

The vapour phase Raman spectrum and the ring puckering vibration of trimethylene oxide

1972 ◽  
Vol 12 (4) ◽  
pp. 605-609 ◽  
Author(s):  
W. Kiefer ◽  
H.J. Bernstein ◽  
M. Danyluk ◽  
H. Wieser
Keyword(s):  
Raman Spectrum ◽  
Vapour Phase ◽  
Trimethylene Oxide ◽  
Ring Puckering

Vapor Phase Raman Transitions in the CH2 Scissoring Region and the Ring Puckering Vibration of Trimethylene Oxide and some Deuterated Analogs

1972 ◽  
Vol 50 (17) ◽  
pp. 2771-2775 ◽  
Author(s):  
H. Wieser ◽  
M. Danyluk ◽  
W. Kiefer ◽  
H. J. Bernstein
Keyword(s):  
High Resolution ◽  
Raman Spectra ◽  
Vapor Phase ◽  
Low Frequency ◽  
Sharp Line ◽  
Raman Transitions ◽  
Trimethylene Oxide ◽  
Phase Combination ◽  
Ring Puckering ◽  
Overlapping Bands

The vapor phase Raman spectra of trimethylene oxide (TMO) and two of its deuterated analogs (α-d2 and β-d2) each show one sharp line on a weak, broad, and unresolved band in the CH2 scissoring region. Under high resolution these lines are resolved into several components. They are assigned to the fundamentals of the scissoring mode of α-CH2 (in-phase, A1 symmetry, in the case of the normal and β-d2 compound) and overlapping bands resulting from interaction with the low frequency puckering vibration. The agreement between Raman and i.r. data is excellent and the assignments are entirely consistent. Raman lines corresponding to the out-of-phase combination (B2 symmetry) of the α-CH2 scissoring vibration and the scissoring mode of the β-CH2 group (in normal, α-d2 and α,α′-d4 TMO) cannot be resolved.

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