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Methyl Alcohol

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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

Gas     Symmetry:   Cs     Symmetry Number sigma = 1


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

a' 1 OH str 3681  A 3681 M gas
a' 2 CH3 d-str 3000  C 3000 M gas
a' 3 CH3 s-str 2844  A 2844 S gas
a' 4 CH3 d-deform 1477  B 1477 M gas OV(«nu»10)
a' 5 CH3 s-deform 1455  A 1455 M gas
a' 6 OH bend 1345  B 1345 S gas
a' 7 CH3 rock 1060  D 1060 W gas OV(«nu»8)
a' 8 CO str 1033  A 1033 VS gas 1032 gas
a 9 CH3 d-str 2960  C 2960 S gas 2955 gas
a 10 CH3 d-deform 1477  B 1477 M gas OV(«nu»4)
a 11 CH3 rock 1165  C 1165 liq.
a 12 Torsion 295  A 80~300 gas ?/? Value of «nu»12 is undefined because of large coupling between internal & overall rotations.
a 12 Torsion 200  E 80~300 gas ?/? Value of «nu»12 is undefined because of large coupling between internal & overall rotations.

Source: Shimanouchi, 1972

Liquid     Symmetry:   Cs     Symmetry Number sigma = 1


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

a' 1 OH str 3328  D 3328 vb liq. 3270-3480 liq.
a' 2 CH3 d-str 2980  C 2980 M liq. 2993 liq.
a' 3 CH3 s-str 2834  C 2834 S liq. 2834 liq.
a' 4 CH3 d-deform 1480  C 1480 M liq. 1464 liq. OV(«nu»10)
a' 5 CH3 s-deform 1450  C 1450 M liq.
a' 6 OH bend 1418  C 1418 M b liq.
a' 7 CH3 rock 1115  C 1115 M liq. 1107 liq.
a' 8 CO str 1030  C 1030 VS liq. 1033 liq.
a 9 CH3 d-str 2946  C 2946 S liq. 2940 liq.
a 10 CH3 d-deform 1480  C 1480 M liq. 1464 liq. OV(«nu»4)
a 11 CH3 rock 1165  C 1165 liq.
a 12 Torsion 655  D 655 vb liq.

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
bBroad
vbVery broad
OVOverlapped by band indicated in parentheses.
A0~1 cm-1 uncertainty
B1~3 cm-1 uncertainty
C3~6 cm-1 uncertainty
D6~15 cm-1 uncertainty
E15~30 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

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