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

View reactions leading to H4P2+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.8PEElbel, Dieck, et al., 1976LLK
9.17 ± 0.05EIFehlner and Callen, 1968RDSH
8.7 ± 0.3EIWada and Kiser, 1964RDSH
10.6 ± 0.3EISaalfeld and Svec, 1963RDSH
9.69PEElbel, Dieck, et al., 1976Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
PH+17.4 ± 0.5?EIFehlner and Callen, 1968RDSH
P2H+14.6 ± 0.3?EIFehlner and Callen, 1968RDSH
P2H+13.2?EIWada and Kiser, 1964RDSH
P2H+13.6 ± 0.3?EISaalfeld and Svec, 1963RDSH
PH2+15.3 ± 0.5?EIFehlner and Callen, 1968RDSH
PH2+12.5 ± 0.2?EISaalfeld and Svec, 1964RDSH
P2H2+11.1 ± 0.2H2EIFehlner and Callen, 1968RDSH
P2H2+10.5H2EIWada and Kiser, 1964RDSH
P2H2+12.7 ± 0.3H2EISaalfeld and Svec, 1963RDSH
P2H3+12.2 ± 0.2HEIFehlner and Callen, 1968RDSH
P2H3+11.3 ± 0.3HEISaalfeld and Svec, 1963RDSH
P+19.4 ± 0.5?EIFehlner and Callen, 1968RDSH
P+16.7 ± 0.3?EISaalfeld and Svec, 1963RDSH
P2+13.2 ± 0.2?EIFehlner and Callen, 1968RDSH
P2+12.2?EIWada and Kiser, 1964RDSH
P2+13.7 ± 0.3?EISaalfeld and Svec, 1963RDSH

De-protonation reactions

H3P2- + Hydrogen cation = Diphosphine

By formula: H3P2- + H+ = H4P2

Quantity Value Units Method Reference Comment
Deltar<1574.9kJ/molAcidSmyth and Brauman, 1972gas phase; PH2- + PH3 ->.; B


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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Elbel, Dieck, et al., 1976
Elbel, S.; Dieck, H.t.; Becker, G.; Ensslin, W., Photoelectron spectra of group 5 compounds. II. Conformational analysis of diphosphine (P2H4), Inorg. Chem., 1976, 15, 1235. [all data]

Fehlner and Callen, 1968
Fehlner, T.P.; Callen, R.B., Mass spectrometry of phosphorus hydrides, Advan. Chem. Ser., 1968, 72, 181. [all data]

Wada and Kiser, 1964
Wada, Y.; Kiser, R.W., Mass spectrometric study of phosphine and diphosphine, Inorg. Chem., 1964, 3, 174. [all data]

Saalfeld and Svec, 1963
Saalfeld, F.E.; Svec, H.J., The mass spectra of volatile hydrides. II. Some higher hydrides of the group IVB and VB elements, Inorg. Chem., 1963, 2, 50. [all data]

Saalfeld and Svec, 1964
Saalfeld, F.E.; Svec, H.J., Mass spectra of volatile hydrides. III. Silylphosphine, Inorg. Chem., 1964, 3, 1442. [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]


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