Carbonic dibromide
- Formula: CBr2O
- Molecular weight: 187.818
- IUPAC Standard InChI: InChI=1S/CBr2O/c2-1(3)4
- IUPAC Standard InChIKey: MOIPGXQKZSZOQX-UHFFFAOYSA-N
- CAS Registry Number: 593-95-3
- Chemical structure:
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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.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -27.13 ± 0.12 | kcal/mol | Eqk | Dunning and Pritchard, 1972 |
Condensed 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.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -34.7 ± 0.2 | kcal/mol | Cm | Anthoney, Finch, et al., 1970 | Heat of hydrolysis |
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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 7.40 ± 0.30 | kcal/mol | V | Anthoney, Finch, et al., 1970 | Heat of hydrolysis |
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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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
=
+
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 8.10 ± 0.10 | kcal/mol | Eqk | Dunning and Pritchard, 1972 | gas phase |
| ΔrH° | 1.0 ± 0.1 | kcal/mol | Eqk | Schumacher and Bergmann, 1931 | gas phase |
+
= 2
+
By formula: CBr2O + H2O = 2HBr + CO2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -49.06 ± 0.16 | kcal/mol | Cm | Anthoney, Finch, et al., 1970 | liquid phase; Heat of hydrolysis |
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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 10.8 | PE | Thomas and Thompson, 1972 | LLK |
| 11.0 | PE | Thomas and Thompson, 1972 | Vertical value; LLK |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Dunning and Pritchard, 1972
Dunning, B.K.; Pritchard, H.O.,
The enthalpy of formation of bromophosgene,
J. Chem. Thermodyn., 1972, 4, 213-218. [all data]
Anthoney, Finch, et al., 1970
Anthoney, M.E.; Finch, A.; Gardner, P.J.,
The enthalpy of hydrolysis and thermodynamic properties of carbonyl bromide,
J. Chem. Thermodyn., 1970, 2, 697-700. [all data]
Schumacher and Bergmann, 1931
Schumacher, H.-J.; Bergmann, P.,
Die kinetik und photochemie des bromphosgens,
Z. Phys. Chem., 1931, 13, 269-284. [all data]
Thomas and Thompson, 1972
Thomas, R.K.; Thompson, H.,
Photoelectron spectra of carbonyl halides and related compounds,
Proc. R. Soc. London A:, 1972, 327, 13. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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