NH2 anion
- Formula: H2N-
- Molecular weight: 16.0231
- CAS Registry Number: 17655-31-1
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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- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 403.44 ± 0.28 | kcal/mol | D-EA | Wickham-Jones, Ervin, et al., 1989 | gas phase |
| ΔrH° | 403.55 ± 0.80 | kcal/mol | G+TS | MacKay, Hemsworth, et al., 1976 | gas phase |
| ΔrH° | 402.30 | kcal/mol | N/A | Check, Faust, et al., 2001 | gas phase; HCrO3(t); ; ΔS(EA)=6.6 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 395.99 ± 0.38 | kcal/mol | H-TS | Wickham-Jones, Ervin, et al., 1989 | gas phase |
| ΔrG° | 396.10 ± 0.70 | kcal/mol | IMRE | MacKay, Hemsworth, et al., 1976 | gas phase |
| ΔrG° | 395.40 | kcal/mol | N/A | Check, Faust, et al., 2001 | gas phase; HCrO3(t); ; ΔS(EA)=6.6 |
References
Go To: Top, Gas phase ion energetics data, 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]
Notes
Go To: Top, Gas phase ion energetics data, References
- 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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