Fe(CO)

Formula: CFeO
Molecular weight: 83.855
CAS Registry Number: 71701-40-1
Information on this page:
Other data available:
- Gas phase ion energetics data
- Vibrational and/or electronic energy levels
Data at other public NIST sites:
- Gas Phase Kinetics Database
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Reaction thermochemistry data

Data compiled by: José A. Martinho Simões

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Individual Reactions

C₂FeO₂ (g) = (g) + CFeO (g)

By formula: C₂FeO₂ (g) = CO (g) + CFeO (g)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	36.7 ± 3.5	kcal/mol	FA-SIFT	Sunderlin, Wang, et al., 1992
Δ_rH°	>27.0	kcal/mol	N/A	Venkataraman, Bandukwalla, et al., 1989	Method: Velocity distributions of photofragments from Fe(CO)5.
Δ_rH°	23.9 ± 6.9	kcal/mol	N/A	Engelking and Lineberger, 1979	Please also see Compton and Stockdale, 1976. Method: LPS and collision with low energy electrons.

CFeO (g) = (g) + (g)

By formula: CFeO (g) = CO (g) + Fe (g)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.4 ± 3.5	kcal/mol	FA-SIFT	Sunderlin, Wang, et al., 1992
Δ_rH°	<39.0	kcal/mol	N/A	Venkataraman, Bandukwalla, et al., 1989	Method: Velocity distributions of photofragments from Fe(CO)5.
Δ_rH°	21. ± 6.9	kcal/mol	N/A	Engelking and Lineberger, 1979	Please also see Compton and Stockdale, 1976. Method: LPS and collision with low energy electrons.

References

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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]

Venkataraman, Bandukwalla, et al., 1989
Venkataraman, B.K.; Bandukwalla, G.; Zhang, Z.; Vernon, M., J. Chem. Phys., 1989, 90, 5510. [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]

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]

Notes

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Symbols used in this document:

Δ_rH° Enthalpy of reaction at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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