Beryllium hydride

• Formula: BeH₂
• Molecular weight: 11.02806
• IUPAC Standard InChI: InChI=1S/Be.2H Copy

  
• IUPAC Standard InChIKey: RWASOQSEFLDYLC-UHFFFAOYSA-N Copy
• CAS Registry Number: 7787-52-2
• Chemical structure:
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• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• 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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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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: John E. Bartmess

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

HBe^- +  =

By formula: HBe^- + H⁺ = H₂Be

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 by: John E. Bartmess

De-protonation reactions

HBe^- +  =

By formula: HBe^- + H⁺ = H₂Be

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:   X

Additional references: Jacox, 1998, page 125; Shayesteh and Bernath, 2006

References

Go To: Top, Gas phase thermochemistry data, Reaction 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]

Rackwitz, Feldman, et al., 1977
Rackwitz, R.; Feldman, D.; Kaiser, H.J.; Heincke, E., Photodetachment bei einigen zweiatomigen negativen hydridionen: BeH-, MgH-, CaH-, ZnH-, PH-, AsH-, Z. Naturforsch. A:, 1977, 32, 594. [all data]

Chase Jr., Davies, et al., 1985
Chase Jr.; Davies, C.A.; Downey Jr.; Frurip, D.J.; McDonald, R.A.; Syverud, A.N., JANAF Thermochemical Tables (Third Edition), J. Phys. Chem. Ref. Data, Suppl. 1, 1985, 14. [all data]

Wang and Andrews, 2005
Wang, X.; Andrews, L., One-Dimensional BeH, Inorg. Chem., 2005, 44, 3, 610, https://doi.org/10.1021/ic048464b . [all data]

Tague and Andrews, 1993
Tague, T.J., Jr.; Andrews, L., Reactions of beryllium atoms with hydrogen. Matrix infrared spectra of novel product molecules, J. Am. Chem. Soc., 1993, 115, 25, 12111, https://doi.org/10.1021/ja00078a057 . [all data]

Bernath, Shayesteh, et al., 2002
Bernath, P.F.; Shayesteh, A.; Tereszchuk, K.; Colin, R., The Vibration-Rotation Emission Spectrum of Free BeH2, Science, 2002, 297, 5585, 1323, https://doi.org/10.1126/science.1074580 . [all data]

Shayesteh, Tereszchuk, et al., 2003
Shayesteh, A.; Tereszchuk, K.; Bernath, P.F.; Colin, R., Infrared emission spectra of BeH[sub 2] and BeD[sub 2], J. Chem. Phys., 2003, 118, 8, 3622, https://doi.org/10.1063/1.1539850 . [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]

Shayesteh and Bernath, 2006
Shayesteh, A.; Bernath, P.F., Rotational [script-l]-type resonance in BeH[sub 2], BeD[sub 2], and MgH[sub 2], J. Chem. Phys., 2006, 124, 15, 156101, https://doi.org/10.1063/1.2189859 . [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
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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