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Cyclohexane

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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:   D3d     Symmetry Number sigma = 6


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

a1g 1 CH2 a-str 2930  E  ia 2938 VS p liq. FR(2«nu»3)
a1g 1 CH2 a-str 2930  E  ia 2923 VS p liq. FR(2«nu»3)
a1g 2 CH2 s-str 2852  C  ia 2852 VS p liq.
a1g 3 CH2 scis 1465  C  ia 1465 M p liq.
a1g 4 CH2 rock 1157  C  ia 1157 S p liq.
a1g 5 CC str 802  C  ia 802 VS p liq.
a1g 6 CCC deform + CC torsion 383  C  ia 383 M p liq.
a1u 7 CH2 twist 1383  C 1383 gas  ia Observed in the crystalline state at about «nu»90 K
a1u 8 CH2 wag 1157  C 1157 gas  ia Observed in the crystalline state at about «nu»90 K
a1u 9 CC str + CC torsion 1057  C 1057 gas  ia Observed in the crystalline state at about «nu»90 K
a2g 10 CH2 wag 1437  C 1437 gas  ia Observed in the crystalline state at about «nu»90 K
a2g 11 CH2 twist 1090  C 1090 gas  ia Observed in the crystalline state at about «nu»90 K
a2u 12 CH2 a-str 2915  E 2915 M gas  ia
a2u 13 CH2 s-str 2860  E  ia SF(«nu»2,«nu»18,«nu»26)
a2u 14 CH2 scis 1437  C 1437 M gas  ia
a2u 15 CH2 rock 1030  D 1040 M gas  ia FR(«nu»23+«nu»32)
a2u 15 CH2 rock 1030  D 1016 M gas  ia FR(«nu»23+«nu»32)
a2u 16 CCC deform 523  A 523 W gas  ia
eg 17 CH2 a-str 2930  E  ia SF(«nu»1,«nu»12,«nu»25)
eg 18 CH2 s-str 2897  E  ia 2897 M vb
eg 19 CH2 scis 1443  C  ia 1443 S dp
eg 20 CH2 wag 1347  C  ia 1347 S dp
eg 21 CH2 twist 1266  C  ia 1266 VS dp
eg 22 CC str 1027  C  ia 1027 VS dp
eg 23 CH2 rock 785  C 785 gas 785 VW dp liq. Observed in the crystalline state at about «nu»90 K
eg 24 CCC deform + CC torsion 426  C  ia 426 S dp liq.
eu 25 CH2 a-str 2933  A 2933 VS gas  ia
eu 26 CH2 s-str 2863  A 2863 VS gas  ia
eu 27 CH2 scis 1457  A 1457 VS gas  ia
eu 28 CH2 wag 1355  B 1355 W gas  ia
eu 29 CH2 twist 1261  A 1261 S gas  ia
eu 30 CH2 rock 907  B 907 S gas  ia
eu 31 CC str 863  A 863 S gas  ia
eu 32 CCC deform + CC torsion 248  C 248 VW liq.  ia

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
VWVery weak
iaInactive
vbVery broad
pPolarized
dpDepolarized
FRFermi resonance with an overtone or a combination tone indicated in the parentheses.
SFCalculation shows that the frequency approximately equals that of the vibration indicated in the parentheses.
A0~1 cm-1 uncertainty
B1~3 cm-1 uncertainty
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