Cobaltocene
- Formula: C10H10Co
- Molecular weight: 189.1196
- IUPAC Standard InChIKey: PXFGMRZPRDJDEK-UHFFFAOYSA-N
- CAS Registry Number: 1277-43-6
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: bis-(η5-Cyclopentadienyl) cobalt; Bis(cyclopentadienyl)cobalt; Cobalt, bis(η5-2,4-cyclopentadien-1-yl)-; Cobalt, di-π-cyclopentadienyl-; Dicyclopentadienylcobalt; Kobaltocen; Cobalt, bis(η5-cyclopentadienyl)-
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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: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 309.0 ± 2.5 | kJ/mol | Review | Martinho Simões | |
ΔfH°gas | 277. ± 4. | kJ/mol | Review | Martinho Simões |
Condensed 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 as indicated in comments:
MS - José A. Martinho Simões
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | 236.9 ± 2.5 | kJ/mol | Review | Martinho Simões | MS |
ΔfH°solid | 205. ± 4. | kJ/mol | CC-SB | Chipperfield, Sneyd, et al., 1979 | Value corrected based on a set of ancillary data by J.A. Martinho Simões; The enthalpy of combustion is not reported in Chipperfield, Sneyd, et al., 1979.; MS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -5838.8 ± 2.1 | kJ/mol | CC-SB | Tel'noi, Kirynov, et al., 1975 | Please also see Pedley and Rylance, 1977 and Tel'noi and Rabinovich, 1977.; MS |
Quantity | Value | Units | Method | Reference | Comment |
S°solid,1 bar | 236.0 | J/mol*K | N/A | Rabinovich, Nistratov, et al., 1978 | DH |
S°solid,1 bar | 236.1 | J/mol*K | N/A | Rabinovich, Nistratov, et al., 1975 | DH |
Constant pressure heat capacity of solid
Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
197.5 | 298.15 | Rabinovich, Nistratov, et al., 1978 | T = 5 to 300 K.; DH |
197.3 | 298.15 | Rabinovich, Nistratov, et al., 1975 | T = 5 to 298.15 K.; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
MS - José A. Martinho Simões
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 72.1 ± 0.1 | kJ/mol | CC-SB | Torres-Gómez, Barreiro-Rodríguez, et al., 1988 | Another value for the enthalpy of sublimation has been reported: 70.3 ± 4.2 kJ/mol Tel'noi, Kirynov, et al., 1975; MS |
ΔsubH° | 70.3 ± 4.2 | kJ/mol | N/A | Pilcher and Skinner, 1983 | See also Tel'noi, Kirynov, et al., 1975.; AC |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.238 | 93.5 | crystaline, II | crystaline, I | Rabinovich, Nistratov, et al., 1978 | Lambda transition between 70 to 120 K with a maximum at 93.5 K.; DH |
0.238 | 92. | crystaline, II | crystaline, I | Rabinovich, Nistratov, et al., 1975 | Lambda transition between 70 to 140 K with a maximum at 92 K.; DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
2.72 | 93.5 | crystaline, II | crystaline, I | Rabinovich, Nistratov, et al., 1978 | Lambda; DH |
2.73 | 92. | crystaline, II | crystaline, I | Rabinovich, Nistratov, et al., 1975 | Lambda; DH |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Martinho Simões
Martinho Simões, J.A.,
Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]
Chipperfield, Sneyd, et al., 1979
Chipperfield, J.R.; Sneyd, J.C.R.; Webster, D.E.,
J. Organometal. Chem., 1979, 178, 177. [all data]
Tel'noi, Kirynov, et al., 1975
Tel'noi, V.I.; Kirynov, K.V.; Ermolaev, V.I.; Rabinovich, I.B.,
Dokl. Akad. Nauk SSSR, 1975, 220, 1088. [all data]
Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J.,
Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brigton, 1977. [all data]
Tel'noi and Rabinovich, 1977
Tel'noi, V.I.; Rabinovich, I.B.,
Russ. Chem. Rev., 1977, 46, 689. [all data]
Rabinovich, Nistratov, et al., 1978
Rabinovich, I.B.; Nistratov, V.P.; Sheiman, M.S.; Burchalova, G.V.,
Heat capacities of dicyclopentadienyl compounds of vanadium, chromium, manganese, cobalt, and nickel,
J. Chem. Thermodynam., 1978, 10, 523-536. [all data]
Rabinovich, Nistratov, et al., 1975
Rabinovich, I.B.; Nistratov, V.P.; Sheiman, M.S.; Burchalova, G.V.,
Heat capacity and transitions in solid state. Dicyclopentadienyl compounds of transition elements,Quatrieme Conference International de Thermodynamique Chimique II,
Thermophysiques (capacites thermiques) pp., 1975, 69-76, 136. [all data]
Torres-Gómez, Barreiro-Rodríguez, et al., 1988
Torres-Gómez, L.A.; Barreiro-Rodríguez, G.; Méndez- Ruíz, F.,
Thermochim. Acta, 1988, 124, 179. [all data]
Pilcher and Skinner, 1983
Pilcher, G.; Skinner, H.A.,
Thermochemistry of organometallic compounds, 1983, 43-90, https://doi.org/10.1002/9780470771686.ch2
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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