Methane, iodo-

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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:   C     Symmetry Number σ = 3


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

a1 1 CH3 s-str 2933  E 2969.8 M gas FR(2ν5)
a1 1 CH3 s-str 2933  E 2861.0 M gas FR(2ν5)
a1 2 CH3 s-deform 1252  A 1251.5 S gas
a1 3 CI str 533  A 532.8 S gas
e 4 CH3 d-str 3060  A 3060.06 S gas
e 5 CH3 d-deform 1436  C 1435.5 M gas FR36)
e 6 CH3 rock 882  A 882.4 M gas

Source: Shimanouchi, 1972

Notes

SStrong
MMedium
FRFermi resonance with an overtone or a combination tone indicated in the parentheses.
A0~1 cm-1 uncertainty
C3~6 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

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