Phosphino radical


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
Δfgas125.94kJ/molReviewChase, 1998Data last reviewed in March, 1963
Quantity Value Units Method Reference Comment
gas,1 bar212.66J/mol*KReviewChase, 1998Data last reviewed in March, 1963

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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View table.

Temperature (K) 298. to 1300.1300. to 6000.
A 25.6524053.33303
B 26.340462.504020
C -2.484837-0.475616
D -2.3736330.031360
E 0.139285-8.976605
F 117.613591.56433
G 236.7600254.3244
H 125.9380125.9380
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1963 Data last reviewed in March, 1963

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: 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

HP- + Hydrogen cation = Phosphino radical

By formula: HP- + H+ = H2P

Quantity Value Units Method Reference Comment
Δr1547. ± 34.kJ/molD-EAErvin and Lineberger, 2005gas phase

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to H2P+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)709.2kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity675.7kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Δf(+) ion1090. ± 4.kJ/molN/AN/A 

Electron affinity determinations

EA (eV) Method Reference Comment
1.2630 ± 0.0060LPESErvin and Lineberger, 2005High level calcns( Curtiss, Raghavachari, et al., 1991, Ricca and Bauschlicher, 1998) give DH ca. 84; B
1.271 ± 0.010LPESZittel and Lineberger, 1976B
0.96 ± 0.11D-EABartmess, Scott, et al., 1979The D-EA cycle does not close by 7 kcal/mol. The reason for this discrepancy is not known; value altered from reference due to change in acidity scale; B
1.250 ± 0.030PDSmyth and Brauman, 1972B
1.300 ± 0.030LPDSmyth, McIver, et al., 1971B
>1.14 ± 0.21D-EAEbinghaus, Kraus, et al., 1964B
1.22443N/ACheck, Faust, et al., 2001MnF5-(q); ; ΔS(EA)=2.9; B
1.60014SIPage and Goode, 1969The Magnetron method, lacking mass analysis, is not considered reliable.; B

Ionization energy determinations

IE (eV) Method Reference Comment
9.824 ± 0.002PIBerkowitz, Curtiss, et al., 1986T = 0K; LBLHLM
9.84 ± 0.01PEDyke, Jonathan, et al., 1982T = 0K; LBLHLM
9.96EIMcAllister and Lossing, 1969RDSH
9.83 ± 0.02EIMcAllister and Lossing, 1969RDSH

De-protonation reactions

HP- + Hydrogen cation = Phosphino radical

By formula: HP- + H+ = H2P

Quantity Value Units Method Reference Comment
Δr1547. ± 34.kJ/molD-EAErvin and Lineberger, 2005gas phase; B

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics 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]

Ervin and Lineberger, 2005
Ervin, K.M.; Lineberger, W.C., Photoelectron spectroscopy of phosphorus hydride anions, J. Chem. Phys., 2005, 122, 19, 194303, https://doi.org/10.1063/1.1881153 . [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Curtiss, Raghavachari, et al., 1991
Curtiss, L.A.; Raghavachari, K.; Trucks, G.W.; Pople, J.A., Gaussian-2 Theory for Molecular Energies of First- and Second-row Compounds, J. Chem. Phys., 1991, 94, 11, 7221, https://doi.org/10.1063/1.460205 . [all data]

Ricca and Bauschlicher, 1998
Ricca, A.; Bauschlicher, C.W., Jr., Accurate Heats of Formation for PHn, PHn+, and PHn-, Chem. Phys. Lett., 1998, 285, 5-6, 455, https://doi.org/10.1016/S0009-2614(97)01468-1 . [all data]

Zittel and Lineberger, 1976
Zittel, P.F.; Lineberger, W.C., Laser photoelectron spectrometry of PO-, PH-, and PH2-, J. Chem. Phys., 1976, 65, 1236. [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Smyth and Brauman, 1972
Smyth, K.C.; Brauman, J.I., Photodetachment of electrons from phosphide ion the electron affinity of PH2-, J. Chem. Phys., 1972, 56, 1132. [all data]

Smyth, McIver, et al., 1971
Smyth, K.C.; McIver, R.T.; Brauman, J.I.; Wallace, R.W., Photodetachment of negative ions using a continuously tunable laser and an ICR spectrometer, J. Chem. Phys., 1971, 54, 2758. [all data]

Ebinghaus, Kraus, et al., 1964
Ebinghaus, H.; Kraus, K.; Neuert, H.; Muller-Duysing, W., Negative Ionen durch Elecktronenresonanzeinfang in PH3, AsH3, und SiH4, Z. Naturfor., 1964, 19A, 732. [all data]

Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S., Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements, J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l . [all data]

Page and Goode, 1969
Page, F.M.; Goode, G.C., Negative Ions and the Magnetron., Wiley, NY, 1969. [all data]

Berkowitz, Curtiss, et al., 1986
Berkowitz, J.; Curtiss, L.; Gibson, S.; Greene, J.; Hillhouse, G.; Pople, J., Photoionization mass spectrometric study and Ab initio calculation of ionization and bonding in P-H compounds. Heats of formation, bond energies, and the 3B1-1A1 separation in PH2+, J. Chem. Phys., 1986, 84, 375. [all data]

Dyke, Jonathan, et al., 1982
Dyke, J.M.; Jonathan, N.; Morris, A., Recent progress in the study of transient species with vacuum ultraviolet photoelectron spectroscopy, Int. Rev. Phys. Chem., 1982, 2, 3. [all data]

McAllister and Lossing, 1969
McAllister, T.; Lossing, F.P., Free radicals by mass spectrometry. XLI. Ionization potential and heat of formation of PH2 radical, J. Phys. Chem., 1969, 73, 2996. [all data]


Notes

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