Nitrosyl chloride

• Formula: ClNO
• Molecular weight: 65.459
• IUPAC Standard InChI: InChI=1S/ClNO/c1-2-3 Copy

  
• IUPAC Standard InChIKey: VPCDQGACGWYTMC-UHFFFAOYSA-N Copy
• CAS Registry Number: 2696-92-6
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Isotopologues:
  • Nitrosyl chloride (¹⁸O¹⁵NCl)
• Other names: Nitrogen chloride oxide (NOCl); Nitrogen oxide chloride (NOCl); Nitrogen oxychloride; Nitrogen oxychloride (NOCl); NOCl; Nitrosyl chloride ((NO)Cl); UN 1069; ONCl; Nitrosonium chloride
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
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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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Phase change 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:
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

 +  =  + 

By formula: CH₃NO₂ + HCl = ClNO + CH₄O

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:
L - Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

Appearance energy determinations

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), 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]

Partington and Whynes, 1949
Partington, J.R.; Whynes, A.L., The Vapor Pressure of Nitrosyl Chloride., J. Phys. Chem., 1949, 53, 4, 500-505, https://doi.org/10.1021/j150469a006 . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Ray and Gershon, 1962
Ray, J.D.; Gershon, A.A., The heat of formation of gaseous methyl nitrite, J. Phys. Chem., 1962, 66, 1750-1752. [all data]

Binnewies, 1983
Binnewies, M., Bildung und stabilitat von gasformigem AsOCl und SbOCl massenspektrometrische untersuchungen, Z. Anorg. Allg. Chem., 1983, 505, 32. [all data]

Alderdice and Dixon, 1977
Alderdice, D.S.; Dixon, R.N., Photoelectron spectra of nitrosyl halides, J. Chem. Soc. Faraday Trans. 2, 1977, 73, 245. [all data]

Abbas, Dyke, et al., 1976
Abbas, M.I.; Dyke, J.M.; Morris, A., Photoelectron spectrum of nitrosyl chloride, J. Chem. Soc. Faraday Trans. 2, 1976, 72, 814. [all data]

Frost, Lee, et al., 1975
Frost, D.C.; Lee, S.T.; McDowell, C.A.; Westwood, N.P.C., Photoelectron spectroscopic studies of some nitrosyl and nitryl halides nitric acid, J. Electron Spectrosc. Relat. Phenom., 1975, 7, 331. [all data]

Syrvatka and Gil'burd, 1973
Syrvatka, B.G.; Gil'burd, M.M., Mass-spectrometric study of trifluoronitrosomethane, Russ. J. Phys. Chem., 1973, 47, 1215. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  IE (evaluated)	Recommended ionization energy
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔvapH	Enthalpy of vaporization

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