HFe
- Formula: FeH
- Molecular weight: 56.853
- CAS Registry Number: 15600-68-7
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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
Fe- + = HFe
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 344.0 ± 4.2 | kcal/mol | G+TS | Miller, Miller, et al., 1993 | gas phase; Acidity stronger than EtCO2H, comparable to HCO2H. |
ΔrH° | 347.6 ± 1.9 | kcal/mol | D-EA | Leopold and Lineberger, 1986 | gas phase |
ΔrH° | 337.7 ± 3.1 | kcal/mol | G+TS | Sallans, Lane, et al., 1985 | gas phase |
ΔrH° | >345.3 ± 5.0 | kcal/mol | D-EA | Compton and Stockdale, 1976 | gas phase; From Fe(CO)5 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 338.3 ± 4.1 | kcal/mol | IMRB | Miller, Miller, et al., 1993 | gas phase; Acidity stronger than EtCO2H, comparable to HCO2H. |
ΔrG° | 341.9 ± 2.0 | kcal/mol | H-TS | Leopold and Lineberger, 1986 | gas phase |
ΔrG° | 332.0 ± 3.0 | kcal/mol | IMRB | Sallans, Lane, et al., 1985 | gas phase |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry 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: John E. Bartmess
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.934 ± 0.010 | LPES | Stevens, Feigerle, et al., 1983 |
De-protonation reactions
Fe- + = HFe
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 344.0 ± 4.2 | kcal/mol | G+TS | Miller, Miller, et al., 1993 | gas phase; Acidity stronger than EtCO2H, comparable to HCO2H. |
ΔrH° | 347.6 ± 1.9 | kcal/mol | D-EA | Leopold and Lineberger, 1986 | gas phase |
ΔrH° | 337.7 ± 3.1 | kcal/mol | G+TS | Sallans, Lane, et al., 1985 | gas phase |
ΔrH° | >345.3 ± 5.0 | kcal/mol | D-EA | Compton and Stockdale, 1976 | gas phase; From Fe(CO)5 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 338.3 ± 4.1 | kcal/mol | IMRB | Miller, Miller, et al., 1993 | gas phase; Acidity stronger than EtCO2H, comparable to HCO2H. |
ΔrG° | 341.9 ± 2.0 | kcal/mol | H-TS | Leopold and Lineberger, 1986 | gas phase |
ΔrG° | 332.0 ± 3.0 | kcal/mol | IMRB | Sallans, Lane, et al., 1985 | gas phase |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Miller, Miller, et al., 1993
Miller, A.E.S.; Miller, T.M.; Morris, R.A.; Viggiano, A.A.; Vandoren, J.M.; Paulson, J.F.,
Reactions of Fe- with Acids - Gas-Phase Acidity and Bond Energy of FeH,
Int. J. Mass Spectrom. Ion Proc., 1993, 123, 3, 205, https://doi.org/10.1016/0168-1176(93)87099-E
. [all data]
Leopold and Lineberger, 1986
Leopold, D.G.; Lineberger, W.C.,
A study of the low-lying electronic states of Fe2 and Co2 by negative ion photoelectron spectroscopy,
J. Chem. Phys., 1986, 85, 51. [all data]
Sallans, Lane, et al., 1985
Sallans, L.; Lane, K.R.; Squires, R.R.; Freiser, B.S.,
Generation and reactions of atomic metal anions in the gas phase. Determination of the heterolytic and homolytic bond energies of VH, VrH, FeH, CoH, and MoH,
J. Am. Chem. Soc., 1985, 107, 4379. [all data]
Compton and Stockdale, 1976
Compton, R.N.; Stockdale, J.A.D.,
Formation of gas phase negative ions in Fe(CO)5 and Ni(CO)4,
Int. J. Mass Spectrom. Ion Phys., 1976, 22, 47. [all data]
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]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity 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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