Phosphorus oxychloride
- Formula: Cl3OP
- Molecular weight: 153.332
- IUPAC Standard InChIKey: XHXFXVLFKHQFAL-UHFFFAOYSA-N
- CAS Registry Number: 10025-87-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Phosphoryl chloride; Phosphoric chloride; Phosphoric trichloride; Phosphorus chloride oxide (POCl3); Phosphorus oxide trichloride; Phosphorus oxytrichloride; Phosphoryl trichloride; Trichlorophosphine oxide; Trichlorophosphorus oxide; POCl3; Phosphorus(V) trichloride oxide; Phosphorous oxychloride; Phosphorus oxide chloride; Fosforoxychlorid; Oxychlorid fosforecny; UN 1810; OPCl3; Phosphoroxychloride
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Phase change data
Go To: Top, Reaction thermochemistry data, Ion clustering data, Vibrational and/or electronic energy levels, NIST Free Links, NIST Subscription Links, References, Notes
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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 274.2 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.15 K; TRC |
| Tfus | 274.35 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.1 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Tc | 601. | K | N/A | Sladkov and Parusova, 1977 | Uncertainty assigned by TRC = 4. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Pc | 49.60 | bar | N/A | Sladkov and Parusova, 1977 | Uncertainty assigned by TRC = 0.50 bar; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Vc | 0.276 | l/mol | N/A | Sladkov and Parusova, 1977 | Uncertainty assigned by TRC = 0.005 l/mol; From Abstract; TRC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 275. to 378.3 | 4.28166 | 1445.959 | -40.119 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Reaction thermochemistry data
Go To: Top, Phase change data, Ion clustering data, Vibrational and/or electronic energy levels, NIST Free Links, NIST Subscription Links, 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: 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
+
= Cl4OP-
By formula: Cl- + Cl3OP = Cl4OP-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 43.1 ± 5.0 | kJ/mol | CIDT | Check, Lobring, et al., 2003 | gas phase |
Ion clustering data
Go To: Top, Phase change data, Reaction thermochemistry data, Vibrational and/or electronic energy levels, NIST Free Links, NIST Subscription Links, 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: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
+
= Cl4OP-
By formula: Cl- + Cl3OP = Cl4OP-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 43.1 ± 5.0 | kJ/mol | CIDT | Check, Lobring, et al., 2003 | gas phase |
Vibrational and/or electronic energy levels
Go To: Top, Phase change data, Reaction thermochemistry data, Ion clustering data, NIST Free Links, NIST Subscription Links, 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: C2 Symmetry Number σ = 2
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| a1 | 1 | PO str | 1322 | C | 1321.5 | gas | ||||
| a1 | 2 | PCl3 s-str | 481 | C | 480.5 | gas | ||||
| a1 | 3 | PCl3 s-deform | 266 | C | 265.5 | gas | ||||
| e | 4 | PCl3 d-str | 590 | C | 589.5 | gas | ||||
| e | 5 | PO bend | 333 | C | 332.5 | gas | ||||
| e | 6 | PCl3 d-deform | 187 | C | 187.0 | gas | ||||
Source: Shimanouchi, 1972
Notes
| C | 3~6 cm-1 uncertainty |
References
Go To: Top, Phase change data, Reaction thermochemistry data, Ion clustering data, Vibrational and/or electronic energy levels, NIST Free Links, NIST Subscription Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Witschonke, 1954
Witschonke, C.R.,
Freezing point and purity data for some organic compounds,
Anal. Chem., 1954, 26, 562-4. [all data]
Sladkov and Parusova, 1977
Sladkov, I.B.; Parusova, N.D.,
Russ. J. Phys. Chem. (Engl. Transl.), 1977, 51, 319. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Check, Lobring, et al., 2003
Check, C.E.; Lobring, K.C.; Keating, P.R.; Gilbert, T.M.; Sunderlin, L.S.,
Effect of substituents on the strength of hypervalent phosphorus-halogen bonds,
J. Phys. Chem. A, 2003, 107, 42, 8961-8967, https://doi.org/10.1021/jp030287x
. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume II,
J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, Ion clustering data, Vibrational and/or electronic energy levels, NIST Free Links, NIST Subscription Links, References
- Symbols used in this document:
Pc Critical pressure Tc Critical temperature Tfus Fusion (melting) point Vc Critical volume ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.
