HN=NO2 anion
- Formula: HN2O2-
- Molecular weight: 61.0207
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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
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Individual Reactions
HN2O2- + =
By formula: HN2O2- + H+ = H2N2O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 346.0 ± 2.2 | kcal/mol | G+TS | Attina, Cacace, et al., 1993 | gas phase; ΔfH(H2NNO2): estimated sublimation enthalpy in Gurvich, Veyts, et al. seems too small - JEB |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 338.3 ± 2.0 | kcal/mol | IMRE | Attina, Cacace, et al., 1993 | gas phase; ΔfH(H2NNO2): estimated sublimation enthalpy in Gurvich, Veyts, et al. seems too small - JEB |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry 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: John E. Bartmess
Protonation reactions
HN2O2- + =
By formula: HN2O2- + H+ = H2N2O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 346.0 ± 2.2 | kcal/mol | G+TS | Attina, Cacace, et al., 1993 | gas phase; ΔfH(H2NNO2): estimated sublimation enthalpy in Gurvich, Veyts, et al. seems too small - JEB |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 338.3 ± 2.0 | kcal/mol | IMRE | Attina, Cacace, et al., 1993 | gas phase; ΔfH(H2NNO2): estimated sublimation enthalpy in Gurvich, Veyts, et al. seems too small - JEB |
References
Go To: Top, Reaction thermochemistry data, 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.
Attina, Cacace, et al., 1993
Attina, M.; Cacace, F.; Ciliberto, E.; Depetris, G.; Grandinetti, F.; Pepi, F.; Ricci, A.,
Gas-Phase Ion Chemistry of Nitramide - A Mass Spectrometric and Abinitio Study of H2N-NO2 and the H2N-NO2+., H2N-NO2.H+, and HN-NO2-,
J. Am. Chem. Soc., 1993, 115, 26, 12398, https://doi.org/10.1021/ja00079a022
. [all data]
Gurvich, Veyts, et al.
Gurvich, L.V.; Veyts, I.V.; Alcock, C.B.,
Hemisphere Publishing, NY, 1989, V. 1 2, Thermodynamic Properties of Individual Substances, 4th Ed. [all data]
Notes
Go To: Top, Reaction thermochemistry data, 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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