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Methyl formate

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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

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 CH3 d-str 3045  D 3045 M gas 3030 liq.
a' 2 CH3 s-str 2969  D 2969 S gas 2955 p liq.
a' 3 CH str 2943  D 2943 S gas
a' 4 C=O str 1754  C 1754 VS gas 1717 p liq.
a' 5 CH3 d-deform 1454  D 1454 W solid solid
a' 6 CH3 s-deform 1445  D 1445 M gas
a' 7 CH bend 1371  D 1371 W gas 1379 p liq.
a' 8 C-O str 1207  C 1207 VS gas 1207 liq.
a' 9 CH3 rock 1166  D 1166 VS gas 1157 liq.
a' 10 O-CH3 str 925  C 925 S gas 912 p liq.
a' 11 OCO deform 767  C 767 M gas 765 liq.
a' 12 COC deform 318  D 318 M gas
a 13 CH3 d-str 3012  D 3012 M gas
a 14 CH3 d-deform 1443  E 1443 W solid solid 1440 liq.
a 15 CH3 rock 1168  D 1168 M gas
a 16 CH bend 1032  C 1032 M gas 1030 liq.
a 17 C-O torsion 332  D 332 M gas 332 p liq.
a 18 CH3 torsion 130  D 130 VW gas MW: «nu»132

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
VWVery weak
pPolarized
MWTorsional Frequency calculated from microwave spectroscopic data.
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