Fe(CO) anion
- Formula: CFeO-
- Molecular weight: 83.856
- CAS Registry Number: 71765-17-8
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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.
Data compiled by: John E. Bartmess
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 34.8 ± 3.5 | kcal/mol | R-EA | Villalta and Leopold, 1993 | |
ΔfH°gas | 16.2 ± 6.0 | kcal/mol | EIAE | Compton and Stockdale, 1976 | From Fe(CO)5 |
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
(CFeO- • 4294967295) + = CFeO-
By formula: (CFeO- • 4294967295CO) + CO = CFeO-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 34.8 ± 3.5 | kcal/mol | N/A | Villalta and Leopold, 1993 | gas phase |
ΔrH° | 33.7 ± 3.5 | kcal/mol | CIDT | Sunderlin, Wang, et al., 1992 | gas phase |
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: ?
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
Td = 9335 ± 40 | gas | Engelking and Lineberger, 1979 | |||||
Villalta and Leopold, 1993 | |||||||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
Σ+ | 1 | CO stretch | 1980 ± 100 | T | gas | PE | Engelking and Lineberger, 1979 |
1 | CO stretch | 1782.0 | Ne | IR | Zhou and Andrews, 1999 | ||
1 | CO stretch | 1770.3 | Ar | IR | Zhou, Chertihin, et al., 1998 | ||
Π | 2 | Bend | 230 ± 40 | gas | PE | Villalta and Leopold, 1993 | |
Σ+ | 3 | FeC stretch | 465 ± 10 | gas | PE | Villalta and Leopold, 1993 | |
Additional references: Jacox, 1994, page 67; Jacox, 2003, page 85
Notes
T | Tentative assignment or approximate value |
d | Photodissociation threshold |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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.
Villalta and Leopold, 1993
Villalta, P.W.; Leopold, D.G.,
A Study of FeCO- and the 3-Sigma(-) and 5-Sigma(-) States of FeCO by Negative Ion Photoelectron Spectroscopy,
J. Chem. Phys., 1993, 98, 10, 7730, https://doi.org/10.1063/1.464580
. [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]
Sunderlin, Wang, et al., 1992
Sunderlin, L.S.; Wang, D.; Squires, R.R.,
Metal Carbonyl Bond Strengths in Fe(CO)n- and Ni(CO)n-,
J. Am. Chem. Soc., 1992, 114, 8, 2788, https://doi.org/10.1021/ja00034a004
. [all data]
Engelking and Lineberger, 1979
Engelking, P.C.; Lineberger, W.C.,
Laser photoelectron spectrometry of the negative ions of iron and iron carbonyls. Electron affinity determination for the series Fe(CO)n,n=0,1,2,3,4,
J. Am. Chem. Soc., 1979, 101, 5569. [all data]
Zhou and Andrews, 1999
Zhou, M.; Andrews, L.,
Reactions of laser-ablated iron atoms and cations with carbon monoxide: Infrared spectra of FeCO[sup +], Fe(CO)[sub 2][sup +], Fe(CO)[sub x], and Fe(CO)[sub x][sup -] (x=1--4) in solid neon,
J. Chem. Phys., 1999, 110, 21, 10370, https://doi.org/10.1063/1.478970
. [all data]
Zhou, Chertihin, et al., 1998
Zhou, M.; Chertihin, G.V.; Andrews, L.,
Reactions of laser-ablated iron atoms with carbon monoxide: Infrared spectra and density functional calculations of Fe[sub x]CO, Fe(CO)[sub x], and Fe(CO)[sub x][sup -] (x=1,2,3) in solid argon,
J. Chem. Phys., 1998, 109, 24, 10893, https://doi.org/10.1063/1.477785
. [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, 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]
Notes
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- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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