Phosphino radical

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
Deltaf(+) 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); ; «DELTA»S(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
Deltar1547. ± 34.kJ/molD-EAErvin and Lineberger, 2005gas phase; B


Go To: Top, 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.

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, . [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, . [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, . [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, . [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, . [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]


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