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
  • Ion clustering data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
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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

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: John E. Bartmess

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

(H₂N^- • 4294967295) +  = H₂N^-

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

H₂N^- +  = (H₂N^- • )

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

(H₂N^- • ) +  = (H₂N^- • 2)

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

Vibrational and/or electronic energy levels

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

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, 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.

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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