Cobalt, tetracarbonylhydro-

Formula: C₄HCoO₄
Molecular weight: 171.9815
IUPAC Standard InChI: InChI=1S/4CO.Co.H/c4*1-2;;
IUPAC Standard InChIKey: KFQDAZBBZFLQPV-UHFFFAOYSA-N
CAS Registry Number: 16842-03-8
Chemical structure:
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Other names: Hydridotetracarbonylcobalt; Cobalt hydrocarbonyl; Cobalt hydrocarbonyl [CoH(CO)4]; Hydrocobalt tetracarbonyl; Tetracarbonylhydridocobalt; Tetracarbonylhydrocobalt; HCo(CO)4; Cobalt, tetracarbonyl hydride-
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Gas phase ion energetics data

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV)	Method	Reference	Comment
8.7 ± 0.1	EI	Saalfeld, McDowell, et al., 1968	RDSH
8.90	PE	Head, Nixon, et al., 1975	Vertical value; LLK
8.90 ± 0.02	PE	Cradock, Ebsworth, et al., 1973	Vertical value; LLK

Appearance energy determinations

Ion	AE (eV)	Other Products	Method	Reference	Comment
CoCO⁺	15.0 ± 0.3	?	EI	Saalfeld, McDowell, et al., 1968	RDSH
CHOCo⁺	12.8 ± 0.3	3CO	EI	Saalfeld, McDowell, et al., 1968	RDSH
CoC₂O₂⁺	12.9 ± 0.3	?	EI	Saalfeld, McDowell, et al., 1968	RDSH
C₂HO₂Co⁺	11.2 ± 0.2	2CO	EI	Saalfeld, McDowell, et al., 1968	RDSH
CoC₃O₃⁺	12.1 ± 0.3	?	EI	Saalfeld, McDowell, et al., 1968	RDSH
C₃HO₃Co⁺	9.4 ± 0.2	CO	EI	Saalfeld, McDowell, et al., 1968	RDSH
Co⁺	17.8 ± 0.3	?	EI	Saalfeld, McDowell, et al., 1968	RDSH
CoH⁺	15.2 ± 0.3	4CO	EI	Saalfeld, McDowell, et al., 1968	RDSH

References

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Saalfeld, McDowell, et al., 1968
Saalfeld, F.E.; McDowell, M.V.; Gondal, S.K.; MacDiarmid, A.G., The mass spectra of trifluorophosphinecarbonylcobalt hydrides, J. Am. Chem. Soc., 1968, 90, 3684. [all data]

Head, Nixon, et al., 1975
Head, R.A.; Nixon, J.F.; Sharp, G.J.; Clark, R.J., Photoelectron spectroscopic study of metal trifluorophosphine and hydridotrifluorophosphine complexes, J. Chem. Soc. Dalton Trans., 1975, 2054. [all data]

Cradock, Ebsworth, et al., 1973
Cradock, S.; Ebsworth, E.A.V.; Robertson, A., Photoelectron spectra of some silyl and germyl transition-metal carbonyls and related specis, J. Chem. Soc. Dalton Trans., 1973, 22. [all data]

Notes

Go To: Top, Gas phase ion energetics data, References

Symbols used in this document:

AE Appearance energy
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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