H2N-NO2
- Formula: H2N2O2
- Molecular weight: 62.0281
- IUPAC Standard InChI: InChI=1S/H2N2O2/c1-2(3)4/h1H2
- IUPAC Standard InChIKey: SFDJOSRHYKHMOK-UHFFFAOYSA-N
- CAS Registry Number: 7782-94-7
- Chemical structure:
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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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Proton affinity (review) | 757.4 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
| Quantity | Value | Units | Method | Reference | Comment |
| Gas basicity | 725.0 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
De-protonation reactions
HN2O2- + =
By formula: HN2O2- + H+ = H2N2O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1448. ± 9.2 | kJ/mol | G+TS | Attina, Cacace, et al., 1993 | gas phase; ΔfH(H2NNO2): estimated sublimation enthalpy in Gurvich, Veyts, et al. seems too small - JEB; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1415. ± 8.4 | kJ/mol | IMRE | Attina, Cacace, et al., 1993 | gas phase; ΔfH(H2NNO2): estimated sublimation enthalpy in Gurvich, Veyts, et al. seems too small - JEB; B |
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.
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
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, 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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