H2CCO+

• Formula: C₂H₂O⁺
• Molecular weight: 42.0361
• CAS Registry Number: 64999-16-2
• Information on this page:
  • Reaction thermochemistry data
  • Ion clustering data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Options:
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Reaction thermochemistry data

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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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C₂H₂O⁺ +  = (C₂H₂O⁺ • )

By formula: C₂H₂O⁺ + H₂O = (C₂H₂O⁺ • H₂O)

Ion clustering data

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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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

C₂H₂O⁺ +  = (C₂H₂O⁺ • )

By formula: C₂H₂O⁺ + H₂O = (C₂H₂O⁺ • H₂O)

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:   E

State:   D

State:   C

State:   B

State:   A

State:   X

Additional references: Jacox, 1994, page 250; Jacox, 1998, page 280

Notes

References

Go To: Top, Reaction thermochemistry data, Ion clustering data, 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.

Postma, Ruttink, et al., 1986
Postma, R.; Ruttink, P.; Terlouw, J.; Holmes, J., The ketene-water radical cation dipole complex [CH₂CO.H₂O]⁺, J. Chem. Soc., Chem. Commun., 1986, 683. [all data]

Hall, Maier, et al., 1977
Hall, D.; Maier, J.P.; Rosmus, P., Electronic states of ketene radical cation, Chem. Phys., 1977, 24, 373. [all data]

Niu, Bai, et al., 1993
Niu, B.; Bai, Y.; Shirley, D.A., High resolution He Iα photoelectron spectroscopy of H2CCO and D2CCO using supersonic molecular beams, Chem. Phys. Lett., 1993, 201, 1-4, 217, https://doi.org/10.1016/0009-2614(93)85059-W . [all data]

Baker and Turner, 1969
Baker, D.; Turner, D.W., J. Chem. Soc. D, 1969, 480. [all data]

Vogt, Williamson, et al., 1978
Vogt, J.; Williamson, A.D.; Beauchamp, J.L., Properties and reactions of ketene in the gas phase by ion cyclotron resonance spectroscopy and photoionization mass spectrometry. Proton affinity, site specificity of protonation, and heat of formation of ketene, J. Am. Chem. Soc., 1978, 100, 3478. [all data]

Willitsch, Haldi, et al., 2002
Willitsch, S.; Haldi, A.; Merkt, F., Rovibrational energy level structure of the ground electronic state of CH2CO+ and CD2CO+, Chem. Phys. Lett., 2002, 353, 1-2, 167, https://doi.org/10.1016/S0009-2614(01)01495-6 . [all data]

Wang, Shi, et al., 2002
Wang, S.; Shi, Y.; Jakubek, Z.J.; Barnett, M.; Simard, B.; Muller-Dethlefs, K.; Liu, C.-P.; Lee, Y.-P., Nonresonant two-photon mass analyzed threshold ionization and zero kinetic energy photoelectron investigation of the X [sup 2]B[sub 1] ground state of CH[sub 2]CO[sup +] and CD[sub 2]CO[sup +], J. Chem. Phys., 2002, 117, 14, 6546, https://doi.org/10.1063/1.1506157 . [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]

Notes

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• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

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