C2D4+

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:   D
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 66770 gas Branton, Frost, et al., 1970
Brundle and Brown, 1971

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 42080 ± 100 gas Brundle and Brown, 1971
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a 2 CC stretch 1100 ± 80 gas PE Branton, Frost, et al., 1970
3 CD2 scissors 930 ± 40 gas PE Branton, Frost, et al., 1970
Brundle and Brown, 1971

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 31510 ± 100 gas Branton, Frost, et al., 1970
Brundle and Brown, 1971
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a 1000 ± 100 gas PE Brundle and Brown, 1971

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 15700 ± 100 gas Branton, Frost, et al., 1970
Brundle and Brown, 1971
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a 1 CD stretch 2640 ± 100 gas PE Brundle and Brown, 1971
2 CC stretch 900 ± 100 gas PE Brundle and Brown, 1971

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
ag 2 CC stretch 1337.4 ± 0.4 gas PE TPE Stockbauer and Inghram, 1975
Wang, Pollard, et al., 1987
Willitsch, Hollenstein, et al., 2004
3 CD2 scissors 960.5 ± 0.4 gas PE TPE Stockbauer and Inghram, 1975
Wang, Pollard, et al., 1987
Willitsch, Hollenstein, et al., 2004
au 4 Torsion 37.1 ± 0.5 gas TPE Willitsch, Hollenstein, et al., 2004
b3u 7 CD2 OPLA 682.9 ± 0.9 gas TPE Willitsch, Hollenstein, et al., 2004
7 CD2 OPLA 691.0 w Ne IR Jacox and Thompson, 2011
b1u 11 CD2 stretch 2190.7 Ne IR Jacox and Thompson, 2011
12 CD2 bend 1056.3 Ne IR Jacox and Thompson, 2011

Notes

wWeak
oEnergy separation between the v = 0 levels of the excited and electronic ground states.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Branton, Frost, et al., 1970
Branton, G.R.; Frost, D.C.; Makita, T.; McDowell, C.A.; Stenhouse, I.A., Photoelectron spectra of ethylene and ethylene-d4, J. Chem. Phys., 1970, 52, 802. [all data]

Brundle and Brown, 1971
Brundle, C.R.; Brown, D.B., The vibrational structure in the photoelectron spectra of ethylene and ethylene-d4, and its relationship to the vibrational spectrum of Zeise's salt K[PtCl3(C2H4)]H2O, Spectrochim. Acta, 1971, 27A, 2491. [all data]

Stockbauer and Inghram, 1975
Stockbauer, R.; Inghram, M.G., Vibrational structure in the ground state of ethylene ethylene-d4 molecular ions investigated by threshold photoelectron spectroscopy, J. Electron Spectrosc. Relat. Phenom., 1975, 7, 492. [all data]

Wang, Pollard, et al., 1987
Wang, L.; Pollard, J.E.; Lee, Y.T.; Shirley, D.A., Molecular beam photoelectron spectroscopy: The C2D4+(X 2B3) ground state, J. Chem. Phys., 1987, 86, 6, 3216, https://doi.org/10.1063/1.451979 . [all data]

Willitsch, Hollenstein, et al., 2004
Willitsch, S.; Hollenstein, U.; Merkt, F., Ionization from a double bond: Rovibronic photoionization dynamics of ethylene, large amplitude torsional motion and vibronic coupling in the ground state of C[sub 2]H[sub 4][sup +], J. Chem. Phys., 2004, 120, 4, 1761, https://doi.org/10.1063/1.1635815 . [all data]

Jacox and Thompson, 2011
Jacox, M.E.; Thompson, W.E., The infrared spectra of C2H4+ and C2H3 trapped in solid neon, J. Chem. Phys., 2011, 134, 6, 064321, https://doi.org/10.1063/1.3555626 . [all data]

Notes

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