Dinitrogen pentoxide

• Formula: N₂O₅
• Molecular weight: 108.0104
• IUPAC Standard InChI: InChI=1S/N2O5/c3-1(4)7-2(5)6 Copy

  
• IUPAC Standard InChIKey: ZWWCURLKEXEFQT-UHFFFAOYSA-N Copy
• CAS Registry Number: 10102-03-1
• Chemical structure:
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• Other names: dinitrogen pentaoxide
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• Information on this page:
  • Gas phase thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Vibrational and/or electronic energy levels
• Data at other public NIST sites:
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Gas phase 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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t² + D*t³ + E/t²
H° − H°_298.15= A*t + B*t²/2 + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − E/(2*t²) + G
    C_p = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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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 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

Appearance energy determinations

References

Go To: Top, Gas phase 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.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [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, Gas phase thermochemistry data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  AE	Appearance energy
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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