Chemical Properties of Cobaltocene (CAS 1277-43-6)

InChI

InChI=1S/2C5H5.Co/c2*1-2-4-5-3-1;/h2*1-5H;

InChI Key

PXFGMRZPRDJDEK-UHFFFAOYSA-N

Formula

C10H10Co

SMILES

[CH]12[CH]3[CH]4[CH]5[CH]1[Co]23451678[CH]2[CH]1[CH]6[CH]7[CH]28

Molecular Weight¹

189.12

CAS

1277-43-6

Other Names

• bis(.eta.-cyclopentadienyl)cobalt
• bis(cyclopentadienyl)cobalt(II)
• bis-(«eta»
• dicyclopentadienylcobalt

• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,solid : Solid phase heat capacity (J/mol×K).
• 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_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_subH° : Enthalpy of sublimation at standard conditions (kJ/mol).
• IE : Ionization energy (eV).
• S°_{solid,1 bar} : Solid phase molar entropy at standard conditions (J/mol×K).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔcH°solid	-5838.80 ± 2.10	kJ/mol	NIST
ΔfH°gas	[277.00; 309.00]	kJ/mol
ΔfH°gas	309.00 ± 2.50	kJ/mol	NIST
ΔfH°gas	277.00 ± 4.00	kJ/mol	NIST
ΔfH°solid	[205.00; 236.90]	kJ/mol
ΔfH°solid	236.90 ± 2.50	kJ/mol	NIST
ΔfH°solid	205.00 ± 4.00	kJ/mol	NIST
ΔfusH°	17.80	kJ/mol	Vapor Pressures and Sublimation Enthalpies of Nickelocene and Cobaltocene Measured by Thermogravimetry
ΔsubH°	[70.30; 72.10]	kJ/mol
ΔsubH°	72.10 ± 0.10	kJ/mol	NIST
ΔsubH°	70.30 ± 4.20	kJ/mol	NIST
IE	[5.55; 6.20]	eV
IE	5.70 ± 0.20	eV	NIST
IE	6.00 ± 0.10	eV	NIST
IE	6.00 ± 0.10	eV	NIST
IE	6.20 ± 0.10	eV	NIST
IE	5.55	eV	NIST
IE	5.56	eV	NIST
S°solid,1 bar	[236.00; 236.10]	J/mol×K
S°solid,1 bar	236.00	J/mol×K	NIST
S°solid,1 bar	236.10	J/mol×K	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
Cp,solid	[197.30; 197.50]	J/mol×K	[298.15; 298.15]
Cp,solid	197.50	J/mol×K	298.15	NIST
Cp,solid	197.30	J/mol×K	298.15	NIST

Similar Compounds

Find more compounds similar to Cobaltocene.

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.
• Vapor Pressures and Sublimation Enthalpies of Nickelocene and Cobaltocene Measured by Thermogravimetry
• NIST Webbook

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.
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