PH2 anion
- Formula: H2P-
- Molecular weight: 32.99019
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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
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Individual Reactions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 363.8 ± 1.5 | kcal/mol | D-EA | Ervin and Lineberger, 2005 | gas phase; High level calcns( Curtiss, Raghavachari, et al., 1991, Ricca and Bauschlicher, 1998) give DH ca. 84 |
ΔrH° | 370.8 ± 2.1 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; The 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 |
ΔrH° | 364.3 ± 4.6 | kcal/mol | EIAE | Halmann and Platzner, 1969 | gas phase |
ΔrH° | <366.6 ± 4.6 | kcal/mol | EIAE | Ebinghaus, Kraus, et al., 1964 | gas phase |
ΔrH° | 365.60 | kcal/mol | N/A | Check, Faust, et al., 2001 | gas phase; MnF5-(q); ; ΔS(EA)=2.9 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 356.4 ± 1.6 | kcal/mol | H-TS | Ervin and Lineberger, 2005 | gas phase; High level calcns( Curtiss, Raghavachari, et al., 1991, Ricca and Bauschlicher, 1998) give DH ca. 84 |
ΔrG° | 363.4 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; The 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 |
ΔrG° | 358.70 | kcal/mol | N/A | Check, Faust, et al., 2001 | gas phase; MnF5-(q); ; ΔS(EA)=2.9 |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
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]
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]
Halmann and Platzner, 1969
Halmann, M.; Platzner, I.,
Negative Ions Produced by Electron Capture in Phosphine,
J. Phys. Chem., 1969, 73, 12, 4376, https://doi.org/10.1021/j100846a062
. [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]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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