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Tetraphosphorus decaoxide


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
Deltafgas-2904.09kJ/molReviewChase, 1998Data last reviewed in December, 1965
Quantity Value Units Method Reference Comment
gas,1 bar403.96J/mol*KReviewChase, 1998Data last reviewed in December, 1965

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 (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. - 600.600. - 6000.
A -10.70062318.4915
B 979.37409.572616
C -1152.412-2.238758
D 513.81610.172783
E -0.326534-18.83829
F -2936.352-3056.399
G 143.8585698.0084
H -2904.085-2904.085
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1965 Data last reviewed in December, 1965

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
Deltafsolid-3009.94kJ/molReviewChase, 1998Data last reviewed in December, 1965
Quantity Value Units Method Reference Comment
solid228.82J/mol*KReviewChase, 1998Data last reviewed in December, 1965

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. - 1500.
A 67.70925
B 576.4548
C -219.7520
D 18.93072
E -0.774806
F -3056.437
G 144.1321
H -3009.940
ReferenceChase, 1998
Comment Data last reviewed in December, 1965

Gas phase ion energetics 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

Electron affinity determinations

EA (eV) Method Reference Comment
2.86 ± 0.24TDEqMavrin, Korobov, et al., 1991Adjusted to current value of EA(PO2-) from that used in ref.; value altered from reference due to change in acidity scale; B

Ionization energy determinations

IE (eV) Method Reference Comment
13.0 ± 0.5EISmoes and Drowart, 1973LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
PO+23.6 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
PO2+22.5 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P2O2+29.5 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
PO3+33.0 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P2O3+28.0 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P2O4+24.3 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P3O4+34.0 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P2O5+22.9 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P3O5+32.9 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P3O6+22.3 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P4O6+32.8 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P3O7+17.8 ± 0.5?EIMuenow, Uy, et al., 1970RDSH
P4O9+20.0 ± 0.5OEIMuenow, Uy, et al., 1970RDSH

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]

Mavrin, Korobov, et al., 1991
Mavrin, A.A.; Korobov, M.V.; Andreeva, T.E.; Sidorov, L.N., The Electron Affinity of P4O10, Zh. Fiz. Khim. SSSR, 1991, 65, 1711. [all data]

Smoes and Drowart, 1973
Smoes, S.; Drowart, J., Atomization energies of phosphorus oxides, Faraday Symp. Chem. Soc., 1973, 139. [all data]

Muenow, Uy, et al., 1970
Muenow, D.W.; Uy, O.M.; Margrave, J.L., Mass spectrometric studies of the vaporization of phosphorus oxides, J. Inorg. Nucl. Chem., 1970, 32, 3459. [all data]


Notes

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