Dinitrogen pentoxide
- Formula: N2O5
- Molecular weight: 108.0104
- IUPAC Standard InChI: InChI=1S/N2O5/c3-1(4)7-2(5)6
- IUPAC Standard InChIKey: ZWWCURLKEXEFQT-UHFFFAOYSA-N
- CAS Registry Number: 10102-03-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: dinitrogen pentaoxide
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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Individual Reactions
0.76 + 0.62
+
=
+
By formula: 0.76NO2 + 0.62N2O4 + CH3NO3 = N2O5 + CH3NO2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 36.24 | kJ/mol | Cm | Ray and Ogg, 1959 | liquid phase |
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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LL - Sharon G. Lias and Joel F. Liebman
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 11.4 | PE | Ames and Turner, 1976 | LLK |
| 12.3 | PE | Ames and Turner, 1976 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| N+ | 36. ± 2. | ? | EI | O'Connor, Jones, et al., 1996 | LL |
| NO+ | 12.95 | NO2+O2 | PI | Jochims, Denzer, et al., 1992 | LL |
| NO2+ | 11.8 | NO3 | PI | Jochims, Denzer, et al., 1992 | LL |
| NO2+ | ~13. | NO2+O | PI | Jochims, Denzer, et al., 1992 | LL |
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.
Ray and Ogg, 1959
Ray, J.D.; Ogg, R.A., Jr.,
The heat of formation of methyl nitrate,
J. Phys. Chem., 1959, 63, 1522-1523. [all data]
Ames and Turner, 1976
Ames, D.L.; Turner, D.W.,
Photoelectron spectroscopic studies of dinitrogen tetroxide and dinitrogen pentoxide,
Proc. R. Soc. London A:, 1976, 348, 175. [all data]
O'Connor, Jones, et al., 1996
O'Connor, C.S.S.; Jones, N.C.; O'Neale, K.; Price, S.D.,
Electron-impact ionization of dinitrogen pentoxide,
Int. J. Mass Spectrom. Ion Processes, 1996, 154, 203. [all data]
Jochims, Denzer, et al., 1992
Jochims, H.-W.; Denzer, W.; Baumgartel, H.; Losking, O.; Willner, H.,
Photochemical decay reactions of N2O5, HNO3, ClNO3 and BrNO3 in the energy range 10-20 eV,
Ber. Bunsen-Ges. Phys. Chem., 1992, 96, 573. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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