FeH2
- Formula: FeH2
- Molecular weight: 57.861
- CAS Registry Number: 33485-98-2
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, 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
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Individual Reactions
HFe- + = H2Fe
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1497.3 | kJ/mol | Acid | Stevens, Feigerle, et al., 1983 | gas phase |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, 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
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
1.049 ± 0.014 | LPES | Miller, Feigerle, et al., 1986 |
De-protonation reactions
HFe- + = H2Fe
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1497.3 | kJ/mol | Acid | Stevens, Feigerle, et al., 1983 | gas phase |
Vibrational and/or electronic energy levels
Go To: Top, Reaction thermochemistry data, 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: A?
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
Tx | Ar | 400 | 450 | Ozin and McCaffrey, 1984 | |||
Rubinovitz and Nixon, 1986 | |||||||
Tx | Kr | 400 | 450 | Ozin and McCaffrey, 1984 | |||
Rubinovitz and Nixon, 1986 | |||||||
Tx | Xe | 400 | 450 | Ozin and McCaffrey, 1984 | |||
Rubinovitz and Nixon, 1986 | |||||||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
Πu | 2 | Bend | 335 | Ar | IR | Rubinovitz and Nixon, 1986 | |
2 | Bend | 322 | Kr | IR | Ozin and McCaffrey, 1984 | ||
2 | Bend | 323 | Xe | IR | Ozin and McCaffrey, 1984 | ||
Σu+ | 3 | FeH a-stretch | 1674.72 | gas | LMR | Korsgen, Murtz, et al., 1996 Korsgen, Urban, et al., 1999 | |
3 | FeH a-stretch | 1660.8 | Ar | IR | Rubinovitz and Nixon, 1986 Chertihin and Andrews, 1995 | ||
3 | FeH a-stretch | 1647 | Kr | IR | Ozin and McCaffrey, 1984 Rubinovitz and Nixon, 1986 | ||
3 | FeH a-stretch | 1636 | Xe | IR | Ozin and McCaffrey, 1984 Rubinovitz and Nixon, 1986 | ||
Additional references: Jacox, 1994, page 15; Jacox, 1998, page 126; Jacox, 2003, page 12; Miller, Feigerle, et al., 1986; Korsgen, Evenson, et al., 1997
Notes
x | Energy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state. |
References
Go To: Top, 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.
Stevens, Feigerle, et al., 1983
Stevens, A.E.; Feigerle, C.S.; Lineberger, W.C.,
Laser photoelectron spectroscopy of MnH- and FeH-: Electronic structures of the metal hydrides, identification of a low spin excited state of MnH,
J. Chem. Phys., 1983, 78, 5420. [all data]
Miller, Feigerle, et al., 1986
Miller, A.E.S.; Feigerle, C.S.; Lineberger, W.C.,
Laser photoelectron spectrocopy of MnH2-, FeH2-, CoH2-, and NiH2-: Determination of the electron affinities for the metal dihydrides,
J. Chem. Phys., 1986, 84, 4127. [all data]
Ozin and McCaffrey, 1984
Ozin, G.A.; McCaffrey, J.G.,
The photoreversible oxidative-addition, reductive-elimination reactions iron + molecular hydrogen .dblharw. iron hydride (FeH2) in low-temperature matrixes,
J. Phys. Chem., 1984, 88, 4, 645, https://doi.org/10.1021/j150648a002
. [all data]
Rubinovitz and Nixon, 1986
Rubinovitz, R.L.; Nixon, E.R.,
The photochemical iron + molecular hydrogen reaction in argon and krypton matrixes by irradiation in the visible region,
J. Phys. Chem., 1986, 90, 9, 1940, https://doi.org/10.1021/j100400a040
. [all data]
Korsgen, Murtz, et al., 1996
Korsgen, H.; Murtz, P.; Lipus, K.; Urban, W.; Towle, J.P.; Brown, J.M.,
The identification of the FeH2 radical in the gas phase by infrared spectroscopy,
J. Chem. Phys., 1996, 104, 12, 4859, https://doi.org/10.1063/1.471180
. [all data]
Korsgen, Urban, et al., 1999
Korsgen, H.; Urban, W.; Brown, J.M.,
The infrared spectrum of FeH[sub 2], studied in the gas phase by laser magnetic resonance,
J. Chem. Phys., 1999, 110, 8, 3861, https://doi.org/10.1063/1.478240
. [all data]
Chertihin and Andrews, 1995
Chertihin, G.V.; Andrews, L.,
Infrared Spectra of FeH, FeH2, and FeH3 in Solid Argon,
J. Phys. Chem., 1995, 99, 32, 12131, https://doi.org/10.1021/j100032a013
. [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]
Jacox, 2003
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement B,
J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629
. [all data]
Korsgen, Evenson, et al., 1997
Korsgen, H.; Evenson, K.M.; Brown, J.M.,
The bending vibration of FeD[sub 2] at 226 cm[sup -1], detected by far-infrared laser magnetic resonance spectroscopy,
J. Chem. Phys., 1997, 107, 3, 1025, https://doi.org/10.1063/1.474432
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
EA Electron affinity ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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