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Carbonic dibromide

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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
Deltafgas-27.13 ± 0.12kcal/molEqkDunning 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
Deltafliquid-34.7 ± 0.2kcal/molCmAnthoney, Finch, et al., 1970Heat 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
Deltavap7.40 ± 0.30kcal/molVAnthoney, Finch, et al., 1970Heat 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

Carbonic dibromide = Carbon monoxide + Bromine

By formula: CBr2O = CO + Br2

Quantity Value Units Method Reference Comment
Deltar8.10 ± 0.10kcal/molEqkDunning and Pritchard, 1972gas phase
Deltar1.0 ± 0.1kcal/molEqkSchumacher and Bergmann, 1931gas phase

Carbonic dibromide + Water = 2Hydrogen bromide + Carbon dioxide

By formula: CBr2O + H2O = 2HBr + CO2

Quantity Value Units Method Reference Comment
Deltar-49.06 ± 0.16kcal/molCmAnthoney, Finch, et al., 1970liquid phase; Heat of hydrolysis

Vibrational and/or electronic energy levels

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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: Takehiko Shimanouchi

Symmetry:   C2nu     Symmetry Number sigma = 2


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a1 1 CO str 1828  B 1828 VS gas
a1 2 CBr2 s-str 425  C 425 M gas 429 S liq.
a1 3 CBr2 deform 181  D 181 S liq.
b1 4 CBr2 a-str 757  C 787 VS gas
b1 4 CBr2 a-str 757  C 747 VS gas FR(«nu»2+«nu»5)
b1 5 CO deform 350  C 350 VW gas 350 M b liq.
b2 6 Op-deform 512  B 512 M gas

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
VWVery weak
bBroad
FRFermi resonance with an overtone or a combination tone indicated in the parentheses.
B1~3 cm-1 uncertainty
C3~6 cm-1 uncertainty
D6~15 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, 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.

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]

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

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