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2,4-Cyclopentadiene-1-one


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: Marilyn E. Jacox

State:   ?


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

Tx = 51300 Ar Maier, Franz, et al., 1985

State:   ?


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

Tx = 27800 Ar Maier, Franz, et al., 1985

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

1870 w m Ar IR Maier, Franz, et al., 1985
Maier, 1986
1789 w Ar IR Maier, Franz, et al., 1985
Maier, 1986
1727 vs Ar IR Maier, Franz, et al., 1985
Maier, 1986
1724 vs Ar IR Maier, Franz, et al., 1985
1678 w m Ar IR Maier, Franz, et al., 1985
Maier, 1986
1332 s Ar IR Maier, Franz, et al., 1985
Maier, 1986
1136 s Ar IR Maier, Franz, et al., 1985
Maier, 1986
1068 w m Ar IR Maier, Franz, et al., 1985
Maier, 1986
822 vs Ar IR Maier, Franz, et al., 1985
Maier, 1986
632 s Ar IR Maier, Franz, et al., 1985
Maier, 1986
458 w m Ar IR Maier, Franz, et al., 1985
Maier, 1986

Additional references: Jacox, 1994, page 419

Notes

wWeak
mMedium
sStrong
vsVery strong
xEnergy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state.

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.

Maier, Franz, et al., 1985
Maier, G.; Franz, L.H.; Hartan, H.-G.; Lanz, K.; Reisenauer, H.P., Kleine Ringe, 54. Cyclopentadienon, Chem. Ber., 1985, 118, 8, 3196, https://doi.org/10.1002/cber.19851180819 . [all data]

Maier, 1986
Maier, G., From silabenzene to cyclopropenylidene, Pure Appl. Chem., 1986, 58, 1, 95, https://doi.org/10.1351/pac198658010095 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]


Notes

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