D2C=C=C:-

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:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 20090 ± 20 gas C-X 456 500 Tulej, Guthe, et al., 2001
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 2 C3 a-stretch 1830 ± 30 gas PD Tulej, Guthe, et al., 2001
4 990 ± 30 gas PD Tulej, Guthe, et al., 2001
b1 6 D2CC OPLA 340 ± 30 gas PD Tulej, Guthe, et al., 2001

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 18273 ± 10 gas B-X 504 547 Tulej, Guthe, et al., 2001
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
4 990 ± 15 gas PD Tulej, Guthe, et al., 2001
5 609 ± 15 gas PD Tulej, Guthe, et al., 2001
6 505 ± 15 gas PD Tulej, Guthe, et al., 2001
8 847 ± 15 gas PD Tulej, Guthe, et al., 2001
9 323 ± 15 gas PD Tulej, Guthe, et al., 2001

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 14246 ± 2 gas A-X 618 702 Tulej, Guthe, et al., 2001
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 2 C3 a-stretch 1920 ± 10 gas PD Tulej, Guthe, et al., 2001
4 936 ± 3 gas PD Tulej, Guthe, et al., 2001
b1 6 D2CC OPLA 188 ± 3 gas PD Tulej, Guthe, et al., 2001

Notes

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.

Tulej, Guthe, et al., 2001
Tulej, M.; Guthe, F.; Pachkov, M.V.; Tikhomirov, K.; Xu, R.; Jungen, M.; Maier, J.P., Feshbach states of the propadienylidene anion H2CCCâ«8364»", Phys. Chem. Chem. Phys., 2001, 3, 21, 4674, https://doi.org/10.1039/b105415p . [all data]

Notes

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