MnH2

Formula: H₂Mn
Molecular weight: 56.95393
CAS Registry Number: 13767-07-2
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Vibrational and/or electronic energy levels

State: A?

Energy (cm^-1)	Med.	λ_min (nm)	λ_max (nm)	References


T_x = 31400	Xe	318	318	Ozin and McCaffrey, 1984

State: X

Vib. sym.	No.	Approximate type of mode	cm^-1	Med.	Method	References


a₁	2	Bend	375	Xe	IR	Ozin and McCaffrey, 1984
	2	Bend	366	Xe	IR	Ozin and McCaffrey, 1984
b₂	3	Asym. stretch	1600.8	Ne	IR	Wang and Andrews, 2003
	3	Asym. stretch	1592.3	Ar	IR	Van Zee, DeVore, et al., 1978 Wang and Andrews, 2003
	3	Asym. stretch	1591	Xe	IR	Ozin and McCaffrey, 1984
	3	Asym. stretch	1565	Xe	IR	Ozin and McCaffrey, 1984
	3	Asym. stretch	1598.0	H₂	IR	Wang and Andrews, 2003

Additional references: Jacox, 1994, page 15

Notes

Energy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state.

References

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Ozin and McCaffrey, 1984
Ozin, G.A.; McCaffrey, J.G., Synthesis of ligand-free transition-metal dihydrides in low-temperature matrixes: manganese dihydride, MnH2, J. Am. Chem. Soc., 1984, 106, 3, 807, https://doi.org/10.1021/ja00315a066 . [all data]

Wang and Andrews, 2003
Wang, X.; Andrews, L., Matrix Infrared Spectra and Density Functional Theory Calculations of Manganese and Rhenium Hydrides, J. Phys. Chem. A, 2003, 107, 20, 4081, https://doi.org/10.1021/jp034392i . [all data]

Van Zee, DeVore, et al., 1978
Van Zee, R.J.; DeVore, T.C.; Wilkerson, J.L.; Weltner, W., Jr., High spin molecules: ESR and optical spectroscopy of MnH (7Σ) and MnH2 (6A1) at 4 °K, J. Chem. Phys., 1978, 69, 5, 1869, https://doi.org/10.1063/1.436823 . [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]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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