Diberyllium monoxide

• Formula: Be₂O
• Molecular weight: 34.0238
• CAS Registry Number: 12009-99-3
• Information on this page:
  • Gas phase thermochemistry data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
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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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

Vibrational and/or electronic energy levels

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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: Marilyn E. Jacox

State:   A

State:   X

Additional references: Jacox, 1998, page 163

Notes

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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]

Theard and Hildenbrand, 1964
Theard, L.P.; Hildenbrand, D.L., Heat of formation of Be₂O(g) by mass spectrometry, J. Chem. Phys., 1964, 41, 3416. [all data]

Merritt, Bondybey, et al., 2009
Merritt, J.M.; Bondybey, V.E.; Heaven, M.C., Spectroscopy, Structure, and Ionization Energy of BeOBe, J. Phys. Chem. A, 2009, 113, 47, 13300, https://doi.org/10.1021/jp904653v . [all data]

Thompson and Andrews, 1994
Thompson, C.A.; Andrews, L., Reactions of laser ablated Be atoms with O2: Infrared spectra of beryllium oxides in solid argon, J. Chem. Phys., 1994, 100, 12, 8689, https://doi.org/10.1063/1.466724 . [all data]

Andrews, Chertihin, et al., 1996
Andrews, L.; Chertihin, G.V.; Thompson, C.A.; Dillon, J.; Byrne, S.; Bauschlicher, C.W., Jr., Infrared Spectra and Quantum Chemical Calculations of Group 2 MO, J. Phys. Chem., 1996, 100, 24, 10088, https://doi.org/10.1021/jp953763v . [all data]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Notes

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• 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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