iodine bromide
- Formula: BrI
- Molecular weight: 206.808
- IUPAC Standard InChIKey: CBEQRNSPHCCXSH-UHFFFAOYSA-N
- CAS Registry Number: 7789-33-5
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
- Other names: Iodine monobromide
- Information on this page:
- Other data available:
- Data at other public NIST sites:
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, 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:
B - John E. Bartmess
ALS - 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
By formula: Br2I- + BrI = (Br2I- • BrI)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 19.90 | kcal/mol | Ther | Finch, Gates, et al., 1977 | gas phase; Structure appears to be BrIBr-: Sanov, Sanford, et al., 1999; B |
ΔrH° | 38.20 | kcal/mol | N/A | Check, Faust, et al., 2001 | gas phase; FeF4-; ; ΔS(EA)=5.7; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 27.30 | kcal/mol | N/A | Check, Faust, et al., 2001 | gas phase; FeF4-; ; ΔS(EA)=5.7; B |
By formula: C2H2BrF3 + I2 = C2H2F3I + BrI
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.6 ± 0.5 | kcal/mol | Eqk | Buckley, Ford, et al., 1980 | gas phase; GLC;hf298_gas[kcal/mol]=-166.8±1.1; Kolesov and Papina, 1983; ALS |
By formula: I2 + CBrF3 = CF3I + BrI
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 9.55 ± 0.03 | kcal/mol | Eqk | Lord, Goy, et al., 1967 | gas phase; ALS |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.79 ± 0.01 | eV | N/A | N/A | L |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
2.5120 ± 0.0030 | LPES | Sheps, Miller, et al., 2009 | Vertical Detachment Energy: 3.341 eV; B |
2.55 ± 0.10 | NBIE | Auerbach, Hubers, et al., 1973 | B |
2.55 ± 0.10 | NBIE | Baeda, 1972 | B |
2.70 ± 0.20 | Endo | Chupka, Berkowitz, et al., 1971 | B |
1.620 ± 0.050 | NBIE | Hubers, Kleyn, et al., 1976 | Stated electron affinity is the Vertical Detachment Energy; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.790 ± 0.004 | PE | Higginson, Lloyd, et al., 1973 | LLK |
9.7 | PE | Potts and Price, 1971 | LLK |
9.79 ± 0.01 | PI | Dibeler, Walker, et al., 1971 | LLK |
9.85 | PE | Dyke, Josland, et al., 1984 | Vertical value; LBLHLM |
References
Go To: Top, 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.
Finch, Gates, et al., 1977
Finch, A.; Gates, P.N.; Peake, S.J.,
Thermochemistry of polyhalides. III. Cesium and rubidium tetrachloroiodates,
J. Inorg. Nucl. Chem., 1977, 39, 2135. [all data]
Sanov, Sanford, et al., 1999
Sanov, A.; Sanford, T.; Butler, L.J.; Vala, J.; Kosloff, R.; Lineberger, W.C.,
Photodissociation dynamics of gas-phase BrICl- and IBr2- anions,
J. Phys. Chem. A, 1999, 103, 49, 10244-10254, https://doi.org/10.1021/jp9920803
. [all data]
Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S.,
Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements,
J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l
. [all data]
Buckley, Ford, et al., 1980
Buckley, G.S.; Ford, W.G.F.; Rodgers, A.S.,
The thermochemistry of the gas phase reaction: CF3CH2Br + I2 = CF3CH2I + IBr. Polarity effects in thermochemistry,
Thermochim. Acta, 1980, 42, 349-355. [all data]
Kolesov and Papina, 1983
Kolesov, V.P.; Papina, T.S.,
Thermochemistry of Haloethanes,
Russ. Chem. Rev., 1983, 52, 425. [all data]
Lord, Goy, et al., 1967
Lord, A.; Goy, C.A.; Pritchard, H.O.,
The heats of formation of trifluoromethyl chloride and bromide,
J. Phys. Chem., 1967, 71, 2705-2707. [all data]
Sheps, Miller, et al., 2009
Sheps, L.; Miller, E.M.; Lineberger, W.C.,
Photoelectron spectroscopy of small IBr-(CO2)(n), (n=0-3) cluster anions,
J. Chem. Phys., 2009, 131, 6, 064304, https://doi.org/10.1063/1.3200941
. [all data]
Auerbach, Hubers, et al., 1973
Auerbach, D.J.; Hubers, M.M.; Baeda, A.P.M.; Los, J.,
Chemi-ionization in alkali-heteronuclear halogen collisions: Role of excited molecular ion states,
Chem. Phys., 1973, 2, 107. [all data]
Baeda, 1972
Baeda, A.P.M.,
The adiabatic electron affinities of Cl2, Br2, I2, IBr, NO2, and O2,
Physica, 1972, 59, 541. [all data]
Chupka, Berkowitz, et al., 1971
Chupka, W.A.; Berkowitz, J.; Gutman, D.,
Electron Affinities of Halogen Diatomic Molecules as Determined by Endoergic Charge Exchange,
J. Chem. Phys., 1971, 55, 6, 2724, https://doi.org/10.1063/1.1676487
. [all data]
Hubers, Kleyn, et al., 1976
Hubers, M.M.; Kleyn, A.W.; Los, J.,
Ion pair formation in alkali-halogen collisions at high velocities,
Chem. Phys., 1976, 17, 303. [all data]
Higginson, Lloyd, et al., 1973
Higginson, B.R.; Lloyd, D.R.; Roberts, P.J.,
Variable temperature photoelectron spectroscopy. The adiabatic ionization potential of the iodine molecule,
Chem. Phys. Lett., 1973, 19, 480. [all data]
Potts and Price, 1971
Potts, A.W.; Price, W.C.,
Photoelectron spectra of the halogens and mixed halides ICI and lBr,
J. Chem. Soc. Faraday Trans., 1971, 67, 1242. [all data]
Dibeler, Walker, et al., 1971
Dibeler, V.H.; Walker, J.A.; McCulloh, K.E.; Rosenstock, H.M.,
Effect of hot bands on the ionization threshold of some diatomic halogen molecules,
Intern. J. Mass Spectrom. Ion Phys., 1971, 7, 209. [all data]
Dyke, Josland, et al., 1984
Dyke, J.M.; Josland, G.D.; Snijders, J.G.; Boerrigter, P.M.,
Ionization energies of the diatomic halogens and interhalogens studied with relativistic hartree-fock-slater calculations,
Chem. Phys., 1984, 91, 419. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity IE (evaluated) Recommended ionization energy ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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