Chromium monoxide

• Formula: CrO
• Molecular weight: 67.9955
• IUPAC Standard InChI: InChI=1S/Cr.O Copy

  
• IUPAC Standard InChIKey: XVOFZWCCFLVFRR-UHFFFAOYSA-N Copy
• CAS Registry Number: 12018-00-7
• Chemical structure:
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• Information on this page:
  • Gas phase thermochemistry data
  • Constants of diatomic molecules
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
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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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Constants of diatomic molecules

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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: Klaus P. Huber and Gerhard H. Herzberg

Data collected through December, 1974

Notes

References

Go To: Top, Gas phase thermochemistry data, Constants of diatomic molecules, 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]

Ferguson, 1932
Ferguson, W.F.C., The chromium oxide and the vanadium oxide band spectra, Bur. Stand. J. Res. US, 1932, 8, 381. [all data]

Ghosh, 1932
Ghosh, C., Das bandenspektrum des chromoxyds, Z. Phys., 1932, 78, 521. [all data]

Murthy and Nagaraj, 1964
Murthy, N.S.; Nagaraj, S., A note on the Franck-Condon factors and r-centroids of the CrO (A→X) band system, Proc. Phys. Soc. London, 1964, 84, 827. [all data]

Grimley, Burns, et al., 1961
Grimley, R.T.; Burns, R.P.; Inghram, M.G., Thermodynamics of the vaporization of Cr₂O₃: dissociation energies of CrO, CrO₂, and CrO₃, J. Chem. Phys., 1961, 34, 664. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Constants of diatomic molecules, References

• Symbols used in this document:
  

  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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