molybdenum


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.

Quantity Value Units Method Reference Comment
Δfliquid41.57kJ/molReviewChase, 1998Data last reviewed in March, 1978
Quantity Value Units Method Reference Comment
liquid,1 bar43.14J/mol*KReviewChase, 1998Data last reviewed in March, 1978
Quantity Value Units Method Reference Comment
solid28.60J/mol*KReviewChase, 1998Data last reviewed in March, 1978

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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 2896. to 4951.969
A 37.65604
B -7.188071×10-8
C 1.413426×10-8
D -9.526382×10-10
E -1.562803×10-7
F 16.81545
G 70.48157
H 41.56804
ReferenceChase, 1998
Comment Data last reviewed in March, 1978

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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 1900.1900. to 2896.
A 24.727361231.192
B 3.960425-963.4246
C -1.270706283.7292
D 1.153065-28.04100
E -0.170246-712.2047
F -8.110684-1485.529
G 56.43379573.7854
H 0.0000000.000000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1978 Data last reviewed in March, 1978

Reaction 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

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Individual Reactions

Molybdenum hexacarbonyl (cr) = 6Carbon monoxide (g) + molybdenum (cr)

By formula: C6MoO6 (cr) = 6CO (g) + Mo (cr)

Quantity Value Units Method Reference Comment
Δr325.9 ± 1.5kJ/molTD-HZCBarnes, Pilcher, et al., 1974Please also see Pedley and Rylance, 1977 and Tel'noi and Rabinovich, 1977.
Δr297.1 ± 4.2kJ/molTD-HFCConnor, Skinner, et al., 1972Please also see Pedley and Rylance, 1977 and Tel'noi and Rabinovich, 1977.

C9H9MoN3O3 (cr) = 3Carbon monoxide (g) + molybdenum (cr) + 3Acetonitrile (g)

By formula: C9H9MoN3O3 (cr) = 3CO (g) + Mo (cr) + 3C2H3N (g)

Quantity Value Units Method Reference Comment
Δr300.8 ± 9.4kJ/molHAL-HFCAdedeji, Connor, et al., 1978 

References

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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]

Barnes, Pilcher, et al., 1974
Barnes, D.S.; Pilcher, G.; Pittam, D.A.; Skinner, H.A.; Todd, D.; Virmani, Y., J. Less-Common Met., 1974, 36, 177. [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]

Connor, Skinner, et al., 1972
Connor, J.A.; Skinner, H.A.; Virmani, Y., Microcalorimetric studies. Thermal decomposition and iodination of metal carbonyls, J. Chem. Soc., Faraday Trans. 1, 1972, 68, 0, 1754, https://doi.org/10.1039/f19726801754 . [all data]

Adedeji, Connor, et al., 1978
Adedeji, F.A.; Connor, J.A.; Demain, C.P.; Martinho Simões, J.A.; Skinner, H.A.; Zafarani- Moattar, M.T., J. Organometal. Chem., 1978, 149, 333. [all data]


Notes

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