C4-

• Formula: C₄^-
• Molecular weight: 48.0433
• CAS Registry Number: 59158-53-1
• Information on this page:
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Ion clustering data
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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: Marilyn E. Jacox

State:   ?

State:   (3) ²Π_u

State:   (2) ²Π_u

State:   C

State:   B

State:   A

State:   X

Additional references: Jacox, 1994, page 183; Jacox, 1998, page 246; Jacox, 2003, page 217

Notes

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.

Yang, Taylor, et al., 1988
Yang, S.; Taylor, K.J.; Craycraft, M.J.; Conceicao, J.; Pettiette, C.L.; Cheshnovsky, O.; Smalley, R.E., UPS of 2--30-atom carbon clusters: Chains and rings, Chem. Phys. Lett., 1988, 144, 5-6, 431, https://doi.org/10.1016/0009-2614(88)87291-9 . [all data]

Arnold, Bradforth, et al., 1991
Arnold, D.W.; Bradforth, S.E.; Kitsopoulos, T.N.; Neumark, D.M., Vibrationally Resolved Spectra of C2-C11 by Anion Photoelectron Spectroscopy, J. Chem. Phys., 1991, 95, 12, 8753, https://doi.org/10.1063/1.461211 . [all data]

Xu, Burton, et al., 1997
Xu, C.; Burton, G.R.; Taylor, T.R.; Neumark, D.M., Photoelectron spectroscopy of C[sub 4][sup -], C[sub 6][sup -], and C[sub 8][sup -], J. Chem. Phys., 1997, 107, 9, 3428, https://doi.org/10.1063/1.474715 . [all data]

Tulej, Kirkwood, et al., 1998
Tulej, M.; Kirkwood, D.A.; Maccaferri, G.; Dopfer, O.; Maier, J.P., Electronic spectra of linear carbon anions, Chem. Phys., 1998, 228, 1-3, 293, https://doi.org/10.1016/S0301-0104(97)00358-3 . [all data]

Freivogel, Grutter, et al., 1997
Freivogel, P.; Grutter, M.; Forney, D.; Maier, J.P., Electronic absorption spectra of C[sub 4][sup -] and C[sub 6][sup -] chains in neon matrices, J. Chem. Phys., 1997, 107, 1, 22, https://doi.org/10.1063/1.474369 . [all data]

Zhao, de Beer, et al., 1996
Zhao, Y.; de Beer, E.; Neumark, D.M., Rotationally resolved spectrum of the C 2Πu←X 2Πg electronic transition of C-4 via resonant two-photon detachment spectroscopy, J. Chem. Phys., 1996, 105, 7, 2575, https://doi.org/10.1063/1.472123 . [all data]

Freivogel, Fulara, et al., 1995
Freivogel, P.; Fulara, J.; Jakobi, M.; Forney, D.; Maier, J.P., Electronic absorption spectra of linear carbon chains in neon matrices. II. C-2n, C2n, and C2nH, J. Chem. Phys., 1995, 103, 1, 54, https://doi.org/10.1063/1.469621 . [all data]

Schafer, Grutter, et al., 1996
Schafer, M.; Grutter, M.; Fulara, J.; Forney, D.; Freivogel, P.; Maier, J.P., Emission spectrum of mass-selected C4-:C2Πu → X2Πg in a neon matrix, Chem. Phys. Lett., 1996, 260, 3-4, 406, https://doi.org/10.1016/0009-2614(96)00882-2 . [all data]

Grutter, Freivogel, et al., 1997
Grutter, M.; Freivogel, P.; Forney, D.; Maier, J.P., Diffusion of mass-selected carbon atoms and molecules in argon and neon matrices, J. Chem. Phys., 1997, 107, 14, 5356, https://doi.org/10.1063/1.474245 . [all data]

Fulara, Freivogel, et al., 2007
Fulara, J.; Freivogel, P.; Maier, J.P., Electronic Transitions of CsC, J. Phys. Chem. A, 2007, 111, 31, 7551, https://doi.org/10.1021/jp070356y . [all data]

Szczepanski, Vala, et al., 1997
Szczepanski, J.; Vala, M.; Shen, L.N.; Withey, P.A.; Graham, W.R., Infrared Spectroscopy of the C, J. Phys. Chem. A, 1997, 101, 47, 8788, https://doi.org/10.1021/jp971884k . [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]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Notes

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• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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