[2H4]acetaldehyde


Vibrational and/or electronic energy levels

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Takehiko Shimanouchi

Symmetry:   Cs     Symmetry Number σ = 1


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a' 1 CD3 d-str 2265  C 2265 W gas
a' 2 CD3 s-str 2130  C 2130 W gas 2128 liq.
a' 3 CD str 2060  C 2060 M gas 2072 liq.
a' 4 CO str 1737  C 1737 VS gas 1706 liq.
a' 5 CD3 d-deform 1045  C 1045 M gas 1090 liq.
a' 6 CD bend 938  C 938 M gas
a' 7 CD3 s-deform 1028  C 1028 M gas 1024 liq. SF12)
a' 8 CC str 1151  C 1151 S gas 1153 liq.
a' 9 CD3 rock 747  C 747 W gas 762 liq.
a' 10 CCO deform 436  C 436 S gas 422.4 liq.
a 11 CD3 d-str 2225  C 2225 W gas
a 12 CD3 d-deform 1028  C 1028 M gas 1024 liq. SF7)
a 13 CD3 rock 573  C 573 W gas
a 14 CD bend 670  D CF
a 15 Torsion 116  C 116 W gas MW

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
CFCalculated frequency
SFCalculation shows that the frequency approximately equals that of the vibration indicated in the parentheses.
MWTorsional Frequency calculated from microwave spectroscopic data.
C3~6 cm-1 uncertainty
D6~15 cm-1 uncertainty

References

Go To: Top, Vibrational and/or electronic energy levels, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]


Notes

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