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Propyne

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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:   C3nu     Symmetry Number sigma = 3


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

a1 1 CH str 3334  C 3334 gas 3305 M liq.
a1 2 CH3 s-str 2918  E 2941 M gas 2941 VS p liq. FR(«nu»2+2«nu»7)
a1 2 CH3 s-str 2918  E 2881 M gas 2941 VS p liq. FR(«nu»2+2«nu»7)
a1 3 C«equiv»C str 2142  A 2142.2 M gas 2142 VS p liq.
a1 4 CH3 s-deform 1382  D 1382 S dp liq.
a1 5 C-C str 931  C 930.7 W gas 930 S p gas
e 6 CH3 d-str 3008  A 3008.3 M gas 2971 M liq.
e 7 CH3 d-deform 1452  B 1452 M gas 1448 M liq.
e 8 CH3 rock 1053  A 1052.5 W gas 1035 VW liq.
e 9 CH bend 633  C 633 S gas 643 S dp liq.
e 10 CCC bend 328  C 328 W gas 336 VS dp liq.

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
VWVery weak
pPolarized
dpDepolarized
FRFermi resonance with an overtone or a combination tone 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