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cobalt


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.

Quantity Value Units Method Reference Comment
Deltafgas101.98kcal/molReviewChase, 1998Data last reviewed in September, 1967
Quantity Value Units Method Reference Comment
gas,1 bar42.904cal/mol*KReviewChase, 1998Data last reviewed in September, 1967

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 3184.943 - 6000.
A 9.737871
B -2.021201
C 0.368042
D -0.015581
E -2.664771
F 94.94410
G 50.88841
H 101.9780
ReferenceChase, 1998
Comment Data last reviewed in September, 1967

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Quantity Value Units Method Reference Comment
Deltafliquid4.302kcal/molReviewChase, 1998Data last reviewed in September, 1967
Quantity Value Units Method Reference Comment
liquid,1 bar9.799cal/mol*KReviewChase, 1998Data last reviewed in September, 1967
Quantity Value Units Method Reference Comment
solid7.187cal/mol*KReviewChase, 1998Data last reviewed in September, 1967

Liquid Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 1768. - 3184.943
A 10.90190
B -0.909892
C 0.246534
D -0.023112
E -0.796545
F -1.944360
G 18.64700
H 4.303060
ReferenceChase, 1998
Comment Data last reviewed in September, 1967

Solid Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 700.700. - 1394.1394. - 1768.
A 2.627701-48.89484-2968.188
B 12.99594123.22713663.098
C -13.26797-100.7529-1693.870
D 6.17041230.96511278.9938
E 0.0393244.284585793.4441
F -1.12411622.613652423.207
G 7.248041-65.21415-2503.059
H 0.0000000.0000000.000000
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment Data last reviewed in September, 1967 Data last reviewed in September, 1967 Data last reviewed in September, 1967

Reaction thermochemistry 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
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Cobalt, tetracarbonylhydro- (g) = 0.5Hydrogen (g) + 4Carbon monoxide (g) + cobalt (cr)

By formula: C4HCoO4 (g) = 0.5H2 (g) + 4CO (g) + Co (cr)

Quantity Value Units Method Reference Comment
Deltar30.38 ± 0.50kcal/molEqGBronshstein, Gankin, et al., 1966Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970. Temperature range: ca. 423-533 K; MS

C12Co4O12 (cr) = 12Carbon monoxide (g) + 4cobalt (cr)

By formula: C12Co4O12 (cr) = 12CO (g) + 4Co (cr)

Quantity Value Units Method Reference Comment
Deltar123.8 ± 3.3kcal/molTD-HFCConnor, Skinner, et al., 1973MS
Deltar123.4 ± 3.3kcal/molHAL-HFCConnor, Skinner, et al., 1973MS

(Cobalt ion (1+) bullet 10cobalt) + cobalt = (Cobalt ion (1+) bullet 11cobalt)

By formula: (Co+ bullet 10Co) + Co = (Co+ bullet 11Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
78.6 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 11cobalt) + cobalt = (Cobalt ion (1+) bullet 12cobalt)

By formula: (Co+ bullet 11Co) + Co = (Co+ bullet 12Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
83.9 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 12cobalt) + cobalt = (Cobalt ion (1+) bullet 13cobalt)

By formula: (Co+ bullet 12Co) + Co = (Co+ bullet 13Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
72.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 13cobalt) + cobalt = (Cobalt ion (1+) bullet 14cobalt)

By formula: (Co+ bullet 13Co) + Co = (Co+ bullet 14Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
90.8 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 14cobalt) + cobalt = (Cobalt ion (1+) bullet 15cobalt)

By formula: (Co+ bullet 14Co) + Co = (Co+ bullet 15Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
84.8 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 15cobalt) + cobalt = (Cobalt ion (1+) bullet 16cobalt)

By formula: (Co+ bullet 15Co) + Co = (Co+ bullet 16Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
82.7 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 16cobalt) + cobalt = (Cobalt ion (1+) bullet 17cobalt)

By formula: (Co+ bullet 16Co) + Co = (Co+ bullet 17Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
88.7 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 9cobalt) + cobalt = (Cobalt ion (1+) bullet 10cobalt)

By formula: (Co+ bullet 9Co) + Co = (Co+ bullet 10Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
75.0 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 2cobalt) + cobalt = (Cobalt ion (1+) bullet 3cobalt)

By formula: (Co+ bullet 2Co) + Co = (Co+ bullet 3Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
49.0 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 3cobalt) + cobalt = (Cobalt ion (1+) bullet 4cobalt)

By formula: (Co+ bullet 3Co) + Co = (Co+ bullet 4Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
65.5 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 4cobalt) + cobalt = (Cobalt ion (1+) bullet 5cobalt)

By formula: (Co+ bullet 4Co) + Co = (Co+ bullet 5Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
76.2 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 5cobalt) + cobalt = (Cobalt ion (1+) bullet 6cobalt)

By formula: (Co+ bullet 5Co) + Co = (Co+ bullet 6Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
67.6 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 6cobalt) + cobalt = (Cobalt ion (1+) bullet 7cobalt)

By formula: (Co+ bullet 6Co) + Co = (Co+ bullet 7Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
72.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 7cobalt) + cobalt = (Cobalt ion (1+) bullet 8cobalt)

By formula: (Co+ bullet 7Co) + Co = (Co+ bullet 8Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
67.6 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet 8cobalt) + cobalt = (Cobalt ion (1+) bullet 9cobalt)

By formula: (Co+ bullet 8Co) + Co = (Co+ bullet 9Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
68.1 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Cobalt ion (1+) bullet cobalt) + cobalt = (Cobalt ion (1+) bullet 2cobalt)

By formula: (Co+ bullet Co) + Co = (Co+ bullet 2Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
48.1 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Dicobalt octacarbonyl (cr) = 8Carbon monoxide (g) + 2cobalt (cr)

By formula: C8Co2O8 (cr) = 8CO (g) + 2Co (cr)

Quantity Value Units Method Reference Comment
Deltar87.0 ± 2.0kcal/molTD-HFCConnor, Skinner, et al., 1973Please also see Pedley and Rylance, 1977.; MS

Cobalt ion (1+) + cobalt = (Cobalt ion (1+) bullet cobalt)

By formula: Co+ + Co = (Co+ bullet Co)

Enthalpy of reaction

DeltarH° (kcal/mol) T (K) Method Reference Comment
63.8 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(CAS Reg. No. 104120-67-4 bullet 4294967295cobalt) + cobalt = CAS Reg. No. 104120-67-4

By formula: (CAS Reg. No. 104120-67-4 bullet 4294967295Co) + Co = CAS Reg. No. 104120-67-4

Quantity Value Units Method Reference Comment
Deltar50.1 ± 2.1kcal/molN/ALeopold and Lineberger, 1986gas phase; B

(CAS Reg. No. 64899-90-7 bullet 4294967295cobalt) + cobalt = CAS Reg. No. 64899-90-7

By formula: (CAS Reg. No. 64899-90-7 bullet 4294967295Co) + Co = CAS Reg. No. 64899-90-7

Quantity Value Units Method Reference Comment
Deltar37.7 ± 3.1kcal/molN/AMiller, Feigerle, et al., 1987gas phase; B

cyclopentadienide anion + cobalt = C5H5Co-

By formula: C5H5- + Co = C5H5Co-

Quantity Value Units Method Reference Comment
Deltar7.00 ± 0.60kcal/molN/ASunderlin and Squires, 1999gas phase; B

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Bronshstein, Gankin, et al., 1966
Bronshstein, Yu.E.; Gankin, V.Yu.; Krinkin, D.P.; Rudkovskii, D.M., Russ. J. Phys. Chem., 1966, 40, 802. [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]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds in Academic Press, New York, 1970. [all data]

Connor, Skinner, et al., 1973
Connor, J.A.; Skinner, H.A.; Virmani, Y., High temperature microcalorimetric studies of the thermal decomposition and iodination of polynuclear carbonyls of Fe, Co, Ru, Rh, Re, Os and Ir, Faraday Symp. Chem. Soc., 1973, 8, 18, https://doi.org/10.1039/fs9730800018 . [all data]

Armentrout and Kickel, 1994
Armentrout, P.B.; Kickel, B.L., Gas Phase Thermochemistry of Transition Metal Ligand Systems: Reassessment of Values and Periodic Trends, in Organometallic Ion Chemistry, B. S. Freiser, ed, 1994. [all data]

Leopold and Lineberger, 1986
Leopold, D.G.; Lineberger, W.C., A study of the low-lying electronic states of Fe2 and Co2 by negative ion photoelectron spectroscopy, J. Chem. Phys., 1986, 85, 51. [all data]

Miller, Feigerle, et al., 1987
Miller, A.E.S.; Feigerle, C.S.; Lineberger, W.C., Laser photoelectron spectroscopy of CrH-, CoH-, and NiH-: Periodic trends in the electronic structure of the transition-metal hydrides, J. Chem. Phys., 1987, 86, 1549. [all data]

Sunderlin and Squires, 1999
Sunderlin, L.S.; Squires, R.R., Bond strengths in cyclopentadienyl metal carbonyl anions, Int. J. Mass Spectrom., 1999, 183, 149-161, https://doi.org/10.1016/S1387-3806(98)14230-6 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References