Triphenylphosphine oxide

• Formula: C₁₈H₁₅OP
• Molecular weight: 278.2849
• IUPAC Standard InChI: InChI=1S/C18H15OP/c19-20(16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18/h1-15H Copy

  
• IUPAC Standard InChIKey: FIQMHBFVRAXMOP-UHFFFAOYSA-N Copy
• CAS Registry Number: 791-28-6
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Phosphine oxide, triphenyl-; Triphenyl phosphorus oxide; (C6H5)3P=O; Triphenylphosphanoxid; Triphenylphosphanoxide; (C6H5)3PO
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• Information on this page:
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Gas phase ion energetics data
  • UV/Visible spectrum
  • Gas Chromatography
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of sublimation

Enthalpy of fusion

Entropy of fusion

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• SOLID (KBr PELLET); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm^-1 resolution
• SOLID (SPLIT MULL, FLUOROLUBE FOR 3800-1333 AND NUJOL FOR 1333-400 CM ^-1); DOW KBr FOREPRISM-GRATING; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm^-1 resolution

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Notes

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

Hulnick, Van Miltenburg, et al., 1989
Hulnick, J.; Van Miltenburg, K.; Oonk, H.A.; Schuljff, A.J., J. Chem. Eng. Data, 1989, 99. [all data]

Kirklin and Domalski, 1988
Kirklin, D.R.; Domalski, E.S., Enthalpies of combustion of triphenylphosphine and triphenylphosphine oxide, J. Chem. Thermodyn., 1988, 20, 743. [all data]

Jorge, Airoldi, et al., 1978
Jorge, R.A.; Airoldi, C.; Chagas, A.P., Thermochemistry of dichlorobis(triphenylphosphine oxide)-zinc(II), -cadmium(II), and -mercury(II), J. Chem. Soc., Dalton Trans., 1978, No. 9, 1102-4. [all data]

Takashina and Price, 1962
Takashina, N.; Price, C.C., A Crystalline Hexamer from Acrylonitrle, J. Am. Chem. Soc., 1962, 84, 489-91. [all data]

Jorge, Airoldi, et al., 1978, 2
Jorge, Renato A.; Airoldi, Claudio; Chagas, A«65533»cio P., Thermochemistry of dichlorobis(triphenylphosphine oxide)-zinc(II), -cadmium(II), and -mercury(II), J. Chem. Soc., Dalton Trans., 1978, 9, 1102, https://doi.org/10.1039/dt9780001102 . [all data]

Huinink, Van Miltenburg, et al., 1989
Huinink, Jan; Van Miltenburg, Kees; Oonk, Harry A.J.; Schuijff, Abraham; Groen, Paul, Thermodynamic functions and vapor pressures of triphenylphosphine oxide and 1,4-bis(diphenylphosphino)butane near the melting point, J. Chem. Eng. Data, 1989, 34, 1, 99-100, https://doi.org/10.1021/je00055a028 . [all data]

Kirklin and Domalski, 1988, 2
Kirklin, D.R.; Domalski, E.S., Enthalpies of combustion of triphenylphosphine and triphenylphosphine oxide, J. Chem. Thermodynam., 1988, 20, 743-754. [all data]

Huinink, van Miltenberg, et al., 1989
Huinink, J.; van Miltenberg, K.; Oonk, H.A.J.; Scherijff, A., Thermodynamic functions and vapor pressures of triphenylphosphine oxide and 1,4-bis(diphenylphosphino)butane, J. Chem. Eng. Data, 1989, 34(1), 99-100. [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]

Jorge, Airoldi, et al., 1978, 3
Jorge, R.A.; Airoldi, C.; Chagas, A.P., Thermochemistry of dichlorobis(triphenylphosphine oxide)-zinc(II), -cadmium(II), and -mercury(II), 1978, J. [all data]

Notes

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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