Chemical Properties of Dicobalt octacarbonyl (CAS 10210-68-1)

InChI

InChI=1S/8CO.2Co/c8*1-2;;

InChI Key

NFWSABSVGZVHCA-UHFFFAOYSA-N

Formula

C8Co2O8

SMILES

[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[Co].[Co]

Molecular Weight¹

341.95

CAS

10210-68-1

Other Names

• Cobalt, di-«mu»-carbonylhexacarbonyldi-, (Co-Co)
• Cobalt carbonyl (Co2(CO)8)
• Cobalt tetracarbonyl dimer
• Di-«mu»-carbonylhexacarbonyldicobalt
• Dicobalt carbonyl (Co2(CO)8)
• Octacarbonyldicobalt
• Co2(CO)8
• Cobalt carbonyl
• Cobalt, di-«mu»-carbonylhexacarbonyldi-
• Cobalt octacarbonyl

• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_subH° : Enthalpy of sublimation at standard conditions (kJ/mol).
• Δ_subH : Enthalpy of sublimation at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔfH°gas	[-1185.20; -1183.00]	kJ/mol
ΔfH°gas	-1183.00 ± 9.10	kJ/mol	NIST
ΔfH°gas	-1185.20 ± 9.40	kJ/mol	NIST
ΔfH°gas	-1184.10 ± 6.90	kJ/mol	NIST
ΔfH°solid	[-1250.40; -1248.20]	kJ/mol
ΔfH°solid	-1248.20 ± 8.50	kJ/mol	NIST
ΔfH°solid	-1250.40 ± 8.80	kJ/mol	NIST
ΔfH°solid	-1249.30 ± 6.10	kJ/mol	NIST
ΔsubH°	[65.20; 65.20]	kJ/mol
ΔsubH°	65.20 ± 3.30	kJ/mol	NIST
ΔsubH°	65.20 ± 3.30	kJ/mol	NIST
IE	[8.12; 8.30]	eV
IE	8.30 ± 0.10	eV	NIST
IE	8.12 ± 0.22	eV	NIST

Cheméo can also estimate Normal Boiling Point Temperature, Normal melting (fusion) point, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
ΔsubH	[75.30; 103.80]	kJ/mol	[247.00; 301.50]
ΔsubH	75.30 ± 6.30	kJ/mol	247.00	NIST
ΔsubH	84.30 ± 0.50	kJ/mol	271.00	NIST
ΔsubH	103.80	kJ/mol	301.50	NIST

Similar Compounds

Find more compounds similar to Dicobalt octacarbonyl.

Sources

• Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
• NIST Webbook

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