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1,2-Propadiene-1,3-dione


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:   Dxh     Symmetry Number sigma = 2


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

«sigma»g+ 1 CO s-str 2196  B  ia 2196.5 W gas
«sigma»g+ 2 CC s-str 786  B  ia 786.1 W p gas
«sigma»u+ 3 CO a-str 2258  B 2258 S gas
«sigma»u+ 4 CC a-str 1573  B 1573 S gas
«pi»g 5 CCO bend 573  C  ia
«pi»u 6 CCO bend 550  B 550 S gas 573.0 W gas
«pi»u 7 CCC bend 61  B 61 gas

Source: Shimanouchi, 1972

Notes

SStrong
WWeak
iaInactive
pPolarized
B1~3 cm-1 uncertainty
C3~6 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 II, J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]


Notes

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