magnesium dihydride

• Formula: H₂Mg
• Molecular weight: 26.3209
• IUPAC Standard InChI: InChI=1S/Mg.2H Copy

  
• IUPAC Standard InChIKey: RSHAOIXHUHAZPM-UHFFFAOYSA-N Copy
• CAS Registry Number: 7693-27-8
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Magnesium hydride
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
• Options:
  • Switch to calorie-based units

Gas phase ion energetics data

Go To: Top, Vibrational and/or electronic energy levels, References, Notes

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

HMg^- +  =

By formula: HMg^- + H⁺ = H₂Mg

Vibrational and/or electronic energy levels

Go To: Top, Gas phase ion energetics data, References, Notes

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, 1994, page 14; Jacox, 1998, page 125; Shayesteh, Appadoo, et al., 2004; Shayesteh and Bernath, 2006

Notes

References

Go To: Top, 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.

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]

Hinde, 2000
Hinde, R.J., Ab initio gas-phase acidities of NaH, MgH2, and AlH3, J. Phys. Chem. A, 2000, 104, 32, 7580-7585, https://doi.org/10.1021/jp994138j . [all data]

Shayesteh, Appadoo, et al., 2003
Shayesteh, A.; Appadoo, D.R.T.; Gordon, I.; Bernath, P.F., The vibration--rotation emission spectrum of MgH[sub 2], J. Chem. Phys., 2003, 119, 15, 7785, https://doi.org/10.1063/1.1609973 . [all data]

Wang and Andrews, 2004
Wang, X.; Andrews, L., Infrared Spectra of Magnesium Hydride Molecules, Complexes, and Solid Magnesium Dihydride, J. Phys. Chem. A, 2004, 108, 52, 11511, https://doi.org/10.1021/jp046410h . [all data]

Tague and Andrews, 1994
Tague, T.J., Jr.; Andrews, L., Pulsed Laser Evaporated Magnesium Atom Reactions with Hydrogen: Infrared Spectra of Five Magnesium Hydride Molecules, J. Phys. Chem., 1994, 98, 35, 8611, https://doi.org/10.1021/j100086a004 . [all data]

McCaffrey, Parnis, et al., 1985
McCaffrey, J.G.; Parnis, J.M.; Ozin, G.A.; Breckenridge, W.H., Photochemical synthesis of magnesium dihydride and methyl magnesium hydride in cryogenic matrixes, J. Phys. Chem., 1985, 89, 23, 4945, https://doi.org/10.1021/j100269a012 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [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, Appadoo, et al., 2004
Shayesteh, A.; Appadoo, D.R.T.; Gordon, I.; Bernath, P.F., The antisymmetric stretching fundamental band of free MgD, Can. J. Chem., 2004, 82, 6, 947, https://doi.org/10.1139/v04-043 . [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

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

• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.