Phosphinidene

• Formula: HP
• Molecular weight: 31.98170
• IUPAC Standard InChI: InChI=1S/HP/h1H Copy

  
• IUPAC Standard InChIKey: BHEPBYXIRTUNPN-UHFFFAOYSA-N Copy
• CAS Registry Number: 13967-14-1
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Constants of diatomic molecules
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
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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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = 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
    C_p = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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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

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

(CAS Reg. No. 13937-34-3 • 4294967295) +  = CAS Reg. No. 13937-34-3

By formula: (CAS Reg. No. 13937-34-3 • 4294967295HP) + HP = CAS Reg. No. 13937-34-3

P^- +  =

By formula: P^- + H⁺ = HP

Constants of diatomic molecules

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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: Klaus P. Huber and Gerhard H. Herzberg

Data collected through July, 1977

Notes

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Constants of diatomic molecules, 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]

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]

Andersson, Lindahl, et al., 2007
Andersson, P.; Lindahl, A.O.; Alfredsson, C.; Rogstrom, L.; Diehl, C.; Pegg, D.J.; Hanstorp, D., The electron affinity of phosphorus, J. Phys. B - Atom. Mol. Opt. Phys., 2007, 40, 20, 4097-4107, https://doi.org/10.1088/0953-4075/40/20/010 . [all data]

Balfour and Douglas, 1968
Balfour, W.J.; Douglas, A.E., The absorption spectrum of PH in the vacuum ultraviolet, Can. J. Phys., 1968, 46, 2277. [all data]

Horani, Rostas, et al., 1967
Horani, M.; Rostas, J.; Lefebvre-Brion, H., Find structure of ³Σ^- and ³Π states of NH, OH⁺, PH, and SH⁺, Can. J. Phys., 1967, 45, 3319. [all data]

Rostas, Cossart, et al., 1974
Rostas, J.; Cossart, D.; Bastien, J.R., Rotational analysis of the PH and PD A³Π_i-X³Σ^- band systems, Can. J. Phys., 1974, 52, 1274. [all data]

Davies, Russell, et al., 1975
Davies, P.B.; Russell, D.K.; Thrush, B.A., Laser magnetic resonance spectra of the PH radical, Chem. Phys. Lett., 1975, 36, 280. [all data]

Fink and Welge, 1964
Fink, E.; Welge, K.H., Lebensdauer der Elektronenzustande N₂(C³Π_u), N₂⁺(B²Σ_u⁺), NH(A³Π), NH(c¹Π), PH(³Π), Z. Naturforsch. A, 1964, 19, 1193. [all data]

Jordan, 1964
Jordan, P.C., Lower electronic levels of the radicals PH and PH₂, J. Chem. Phys., 1964, 41, 1442. [all data]

Cade, 1968
Cade, P.E., Theoretical prediction of the singlet-triplet intercombination separations for NH, OH⁺, PH, and SH⁺, Can. J. Phys., 1968, 46, 1989. [all data]

Liu, Legentil, et al., 1972
Liu, H.P.D.; Legentil, J.; Verhaegen, G., Calculated energy levels of some diatomic hydrides in Selected Topics in Molecular Physics [Proceedings of the national symposium at Ludwigsburg (Germany)], Clementi; Chemie GmbH, ed(s)., Weinheim, Bergstr., 1972, 19-33. [all data]

Ishaque and Pearse, 1939
Ishaque, M.; Pearse, R.W.B., The λ3400 bands of PH and PD, Proc. R. Soc. London A, 1939, 173, 265. [all data]

Meyer and Rosmus, 1975
Meyer, W.; Rosmus, P., PNO-Cl and CEPA studies of electron correlation effects. III. Spectroscopic constants and dipole moment functions for the ground states of the first-row and second-row diatomic hydrides, J. Chem. Phys., 1975, 63, 2356. [all data]

Cade and Huo, 1967
Cade, P.E.; Huo, W.M., Electronic structure of diatomic molecules. VII.A. Hartree-Fock wavefunctions and energy quantities for the ground states of the second-row hydrides, AH, J. Chem. Phys., 1967, 47, 649. [all data]

Notes

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• Symbols used in this document:
  

  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  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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