Phosphine
- Formula: H3P
- Molecular weight: 33.99758
- IUPAC Standard InChI: InChI=1S/H3P/h1H3
- IUPAC Standard InChIKey: XYFCBTPGUUZFHI-UHFFFAOYSA-N
- CAS Registry Number: 7803-51-2
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Trihydrogen phosphide; Hydrogen phosphide; Phosphorus trihydride; PH3; Phosphene; Phosphorus hydride; Fosforowodor; Gas-ex-B; Phosphorwasserstoff; Rcra waste number P096; UN 2199
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Gas phase thermochemistry data
Go To: Top, IR Spectrum, Vibrational and/or electronic energy levels, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 5.47 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1962 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 210.24 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1962 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = 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
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 1200. | 1200. to 6000. |
|---|---|---|
| A | 11.90009 | 74.33713 |
| B | 84.46701 | 4.659763 |
| C | -38.04294 | -0.905288 |
| D | 5.695428 | 0.060778 |
| E | 0.289233 | -14.84433 |
| F | 16.87884 | -31.67367 |
| G | 202.7286 | 258.3582 |
| H | 5.469890 | 5.469890 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in June, 1962 | Data last reviewed in June, 1962 |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Coblentz Society, Inc.
Spectrum
A digitized version of this spectrum is not currently available.
Additional Data
View scan of original (hardcopy) spectrum.
| Owner | COBLENTZ SOCIETY Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| Source reference | COBLENTZ NO. 10498 |
| Date | Not specified, most likely prior to 1982 |
| Instrument | Not specified, most likely a prism, grating, or hybrid spectrometer. |
| Data processing | (NO SPECTRUM, ONLY SCANNED IMAGE IS AVAILABLE) |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase thermochemistry data, IR Spectrum, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Takehiko Shimanouchi
Symmetry: C3ν Symmetry Number σ = 3
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| a1 | 1 | Sym str | 2323 | A | 2322.9 | gas | 2306 | liq. | ||
| a1 | 2 | Sym deform | 992 | B | 992.1 | gas | 979 | liq. | ||
| e | 3 | Deg str | 2328 | B | 2327.7 | gas | ||||
| e | 4 | Deg deform | 1118 | A | 1118.3 | gas | 1115 | liq. | ||
Source: Shimanouchi, 1972
Notes
| A | 0~1 cm-1 uncertainty |
| B | 1~3 cm-1 uncertainty |
References
Go To: Top, Gas phase thermochemistry data, IR Spectrum, Vibrational and/or electronic energy levels, 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]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, IR Spectrum, Vibrational and/or electronic energy levels, References
- 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 - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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