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Cyclopropane

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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:   D3h     Symmetry Number sigma = 6


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

a1' 1 CH2 s-str 3038  C  ia 3038 S p gas
a1' 2 CH2 scis 1479  D  ia 1504 W p gas FR(2«nu»14)
a1' 2 CH2 scis 1479  D  ia 1453 W p gas FR(2«nu»14)
a1' 3 Ring str 1188  C  ia 1188 S p gas
a1 4 CH2 twist 1126  D 1126 ia VW gas 1133 ia gas
a2' 5 CH2 wag 1070  D 1075 ia sln.  ia OC(«nu»5+«nu»10)
a2 6 CH2 a-str 3103  C 3103 S gas  ia
a2 7 CH2 rock 854  C 854 S gas  ia
e' 8 CH2 s-str 3025  C 3025 VS gas 3020 VS p gas
e' 9 CH2 scis 1438  C 1438 M gas 1442 M dp gas
e' 10 CH2 wag 1029  C 1029 S gas 1023 VW liq.
e' 11 Ring deform 866  C 866 VS gas 866 S dp gas
e 12 CH2 a-str 3082  C  ia 3082 S dp gas
e 13 CH2 twist 1188  C  ia 1188 M dp gas
e 14 CH2 rock 739  C  ia 739 W dp gas

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
VWVery weak
iaInactive
pPolarized
dpDepolarized
FRFermi resonance with an overtone or a combination tone indicated in the parentheses.
OCFrequency estimated from an overtone or a combination tone indicated in the parentheses.
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

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