NH2 anion

• Formula: H₂N^-
• Molecular weight: 16.0231
• CAS Registry Number: 17655-31-1
• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Ion clustering data
• 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: John E. Bartmess

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

H₂N^- +  =

By formula: H₂N^- + H⁺ = H₃N

(H₂N^- • ) +  = (H₂N^- • 2)

By formula: (H₂N^- • H₃N) + H₃N = (H₂N^- • 2H₃N)

(H₂N^- • 4294967295) +  = H₂N^-

By formula: (H₂N^- • 4294967295HN) + HN = H₂N^-

H₂N^- +  = (H₂N^- • )

By formula: H₂N^- + H₃N = (H₂N^- • H₃N)

Gas phase ion energetics 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: John E. Bartmess

Protonation reactions

H₂N^- +  =

By formula: H₂N^- + H⁺ = H₃N

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:   A

State:   X

Additional references: Jacox, 1994, page 26

Notes

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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.

Wickham-Jones, Ervin, et al., 1989
Wickham-Jones, C.T.; Ervin, K.M.; Ellison, G.B.; Lineberger, W.C., NH2 Electron Affinity, J. Chem. Phys., 1989, 91, 4, 2762, https://doi.org/10.1063/1.456994 . [all data]

MacKay, Hemsworth, et al., 1976
MacKay, G.J.; Hemsworth, R.S.; Bohme, D.K., Absolute gas-phase acidities of CH₃NH₂, C₂H₅NH₂, (CH₃)₂NH, and (CH₃)₃N, Can. J. Chem., 1976, 54, 1624. [all data]

Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S., Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements, J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l . [all data]

Snodgrass, Coe, et al., 1989
Snodgrass, J.T.; Coe, J.V.; Freidhoff, C.B.; McHugh, K.M.; Bowen, K.H., Photoelectron Spectroscopy of the Negative Cluster Ions, NH₂^-(NH₃)n=1,2, J. Chem. Phys., 1989, 92, xxxx. [all data]

Feldman, 1971
Feldman, D., Photoablosung von Elektronen bei Si^- und NH₂^-, Z. Naturforsch. A, 1971, 26, 1100. [all data]

Smyth and Brauman, 1972
Smyth, K.C.; Brauman, J.I., Photodetachment of electrons from amide and arsenide ions: The electron affinities of NH₂ and AsH₂., J. Chem. Phys., 1972, 56, 4620. [all data]

Celotta, Bennett, et al., 1974
Celotta, R.S.; Bennett, R.A.; Hall, J.L., Laser Photodetachment Determination of the Electron Affinities of OH, NH₂, NH, SO₂, and S₂, J. Chem. Phys., 1974, 60, 5, 1740, https://doi.org/10.1063/1.1681268 . [all data]

Tack, Rosenbaum, et al., 1986
Tack, L.M.; Rosenbaum, N.H.; Owrutsky, J.C.; Saykally, R.J., Velocity modulation infrared laser spectroscopy of negative ions: Measurement of the ν1 vibration of amide (NH-2), J. Chem. Phys., 1986, 84, 12, 7056, https://doi.org/10.1063/1.450631 . [all data]

Tack, Rosenbaum, et al., 1986, 2
Tack, L.M.; Rosenbaum, N.H.; Owrutsky, J.C.; Saykally, R.J., Velocity modulation infrared laser spectroscopy and structure of the amide anion (NH-2 ), J. Chem. Phys., 1986, 85, 8, 4222, https://doi.org/10.1063/1.451792 . [all data]

Suzer and Andrews, 1988
Suzer, S.; Andrews, L., Matrix infrared study of NH-2 produced by electron impact on NH3, J. Chem. Phys., 1988, 89, 8, 5347, https://doi.org/10.1063/1.455604 . [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

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• Symbols used in this document:
  

  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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