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Formic acid

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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 OH str 3570  D 3570 M gas
a' 2 CH str 2943  C 2942.8 M gas
a' 3 C=O str 1770  C 1770 VS gas
a' 4 CH bend 1387  C 1387 VW gas
a' 5 OH bend 1229  C 1229 W gas
a' 6 C-O str 1105  C 1105.3 S gas
a' 7 OCO deform 625  C 625 M gas
a 8 CH bend 1033  C 1033 W gas
a 9 Torsion 638  C 638 S gas

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
VWVery weak
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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