Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

methyl (2H)formate


Vibrational and/or electronic energy levels

Go To: Top, References, Notes

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 3041  C 3041 M gas
a' 2 CH3 s-str 2967  C 2967 S gas
a' 3 CD str 2216  C 2216 S gas
a' 4 C=O str 1739  E 1755 VS gas FR(2«nu»16)
a' 4 C=O str 1739  E 1716 VS gas FR(2«nu»16)
a' 5 CH3 d-deform 1448  E 1448 W solid solid
a' 6 CH3 s-deform 1441  D 1441 M gas
a' 7 CD bend 1048  D 1048 M gas
a' 8 C-O str 1213  C 1213 VS gas
a' 9 CH3 rock 1157  D 1157 VS gas
a' 10 O-CH3 str 878  C 878 S gas
a' 11 OCO deform 762  C 762 M gas
a' 12 COC deform 315  E 315 M gas
a 13 CH3 d-str 3007  D 3007 S gas
a 14 CH3 d-deform 1440  E 1440 W solid solid
a 15 CH3 rock 1164  E CF, OV(«nu»9)
a 16 CD bend 870  E CF, OV(«nu»10)
a 17 C-O torsion 290  E 290 M gas
a 18 CH3 torsion 130  E CF

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
FRFermi resonance with an overtone or a combination tone indicated in the parentheses.
CFCalculated frequency
OVOverlapped by band indicated in parentheses.
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