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Iodine atom

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Gas phase thermochemistry 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.

Quantity Value Units Method Reference Comment
Deltafgas106.76 ± 0.04kJ/molReviewCox, Wagman, et al., 1984CODATA Review value
Deltafgas106.76kJ/molReviewChase, 1998Data last reviewed in June, 1982
Quantity Value Units Method Reference Comment
gas,1 bar180.787 ± 0.004J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar180.79J/mol*KReviewChase, 1998Data last reviewed in June, 1982

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. - 1600.1600. - 6000.
A 20.7002614.49564
B 0.3507484.244835
C -0.513059-0.726698
D 0.2554500.040727
E 0.0017833.603052
F 100.5846108.4225
G 205.7633203.7194
H 106.7623106.7623
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1982 Data last reviewed in June, 1982

Reaction thermochemistry data

Go To: Top, Gas phase 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 compiled as indicated in comments:
MS - José A. Martinho Simões
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

C12H4F3IO4W (g) + Bromine (g) = C12H4BrF3O4W (g) + Iodine atom (g)

By formula: C12H4F3IO4W (g) + Br (g) = C12H4BrF3O4W (g) + I (g)

Quantity Value Units Method Reference Comment
Deltar-55.kJ/molEqSFischer and Seitz, 1984The reaction enthalpy relies on a single measurement of the equilibrium constant in 1,1,2-trichloroethane (at 263 K) for the reaction W(CO)4(CC6H4CF3)(I)(solution) + Br(-)(solution) = W(CO)4(CC6H4CF3)(Br)(solution) + I(-)(solution), and on solvation and electron affinity data. It assumes that the reaction entropy is negligible Fischer and Seitz, 1984; MS

C12H7IO4W (g) + Bromine (g) = C12H7BrO4W (g) + Iodine atom (g)

By formula: C12H7IO4W (g) + Br (g) = C12H7BrO4W (g) + I (g)

Quantity Value Units Method Reference Comment
Deltar-54.kJ/molEqSFischer and Seitz, 1984The reaction enthalpy relies on a single measurement of the equilibrium constant in 1,1,2-trichloroethane (at 263 K) for the reaction W(CO)4(CC6H4Me)(I)(solution) + Br(-)(solution) = W(CO)4(CC6H4Me)(Br)(solution) + I(-)(solution), and on solvation and electron affinity data. It assumes that the reaction entropy is negligible Fischer and Seitz, 1984; MS

C11H5IO4W (g) + Bromine (g) = C11H5BrO4W (g) + Iodine atom (g)

By formula: C11H5IO4W (g) + Br (g) = C11H5BrO4W (g) + I (g)

Quantity Value Units Method Reference Comment
Deltar-54.kJ/molEqSFischer and Seitz, 1984The reaction enthalpy relies on a single measurement of the equilibrium constant in 1,1,2-trichloroethane (at 263 K) for the reaction W(CO)4(CPh)(I)(solution) + Br(-)(solution) = W(CO)4(CPh)(Br)(solution) + I(-)(solution), and on solvation and electron affinity data. It assumes that the reaction entropy is negligible Fischer and Seitz, 1984; MS

(CAS Reg. No. 12190-71-5 bullet 4294967295Iodine atom) + Iodine atom = CAS Reg. No. 12190-71-5

By formula: (CAS Reg. No. 12190-71-5 bullet 4294967295I) + I = CAS Reg. No. 12190-71-5

Quantity Value Units Method Reference Comment
Deltar99.54 ± 0.71kJ/molN/AZanni, Taylor, et al., 1997gas phase; B

Ethane, 1-chloro-2-iodo- = Iodine atom + Chlorine atom + Ethylene

By formula: C2H4ClI = I + Cl + C2H4

Quantity Value Units Method Reference Comment
Deltar320. ± 4.2kJ/molKinMinton, Felder, et al., 1984gas phase; ALS

Iodine atom (g) + Germane (g) = Hydrogen iodide (g) + Germyl radical (g)

By formula: I (g) + H4Ge (g) = HI (g) + H3Ge (g)

Quantity Value Units Method Reference Comment
Deltar47.0 ± 4.1kJ/molKinGNoble and Walsh, 1983MS

Iodine atom (g) + C3H10Ge (g) = C3H9Ge (g) + Hydrogen iodide (g)

By formula: I (g) + C3H10Ge (g) = C3H9Ge (g) + HI (g)

Quantity Value Units Method Reference Comment
Deltar42.0 ± 1.8kJ/molKinGDoncaster and Walsh, 1979MS

C4BrClO4Re + Iodine atom = C4BrIO4Re-

By formula: C4BrClO4Re + I = C4BrIO4Re-

Quantity Value Units Method Reference Comment
Deltar>239.3kJ/molIMRBJones, McDonald, et al., 1989gas phase; B

C4ClO4Re + Iodine atom = C4ClIO4Re-

By formula: C4ClO4Re + I = C4ClIO4Re-

Quantity Value Units Method Reference Comment
Deltar>239.3kJ/molIMRBJones, McDonald, et al., 1989gas phase; B

C4BrIMnO4 + Iodine atom = C4BrIMnO4-

By formula: C4BrIMnO4 + I = C4BrIMnO4-

Quantity Value Units Method Reference Comment
Deltar>230.1kJ/molIMRBJones, McDonald, et al., 1989gas phase; B

C4ClIMnO4 + Iodine atom = C4ClIMnO4-

By formula: C4ClIMnO4 + I = C4ClIMnO4-

Quantity Value Units Method Reference Comment
Deltar>230.1kJ/molIMRBJones, McDonald, et al., 1989gas phase; B

C6H5O3Re + Iodine atom = C6H5IO3Re-

By formula: C6H5O3Re + I = C6H5IO3Re-

Quantity Value Units Method Reference Comment
Deltar>239.3kJ/molIMRBJones, McDonald, et al., 1989gas phase; B

CAS Reg. No. 121175-69-7 + Iodine atom = C6H5IMnO3-

By formula: CAS Reg. No. 121175-69-7 + I = C6H5IMnO3-

Quantity Value Units Method Reference Comment
Deltar>239.3kJ/molIMRBJones, McDonald, et al., 1989gas phase; B

C5CrO5- + Iodine atom = C5CrIO5-

By formula: C5CrO5- + I = C5CrIO5-

Quantity Value Units Method Reference Comment
Deltar>239.3kJ/molIMRBJones, McDonald, et al., 1989gas phase; B

C3NiO3- + Iodine atom = C3INiO3-

By formula: C3NiO3- + I = C3INiO3-

Quantity Value Units Method Reference Comment
Deltar>230.1kJ/molIMRBJones, McDonald, et al., 1989gas phase; B

C4FeO4- + Iodine atom = C4FeIO4-

By formula: C4FeO4- + I = C4FeIO4-

Quantity Value Units Method Reference Comment
Deltar>230.1kJ/molIMRBJones, McDonald, et al., 1989gas phase; B

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Fischer and Seitz, 1984
Fischer, H.; Seitz, F., J. Organometal. Chem., 1984, 268, 247. [all data]

Zanni, Taylor, et al., 1997
Zanni, M.T.; Taylor, T.R.; Greenblatt, J.; Soep, B.; Neumark, D.M., Characterization of the I2- Anion Ground State Using Conventional and Femtosecond Photoelectron Spectroscopy, J. Chem. Phys., 1997, 107, 19, 7613, https://doi.org/10.1063/1.475110 . [all data]

Minton, Felder, et al., 1984
Minton, T.K.; Felder, P.; Brudzynski, R.J.; Lee, Y.T., Photodissociation of 1,2-chloroiodoethane at 248 and 266 nm: The enthalpy of formation of CH2ClCH2I, J. Chem. Phys., 1984, 81, 1759-1769. [all data]

Noble and Walsh, 1983
Noble, P.N.; Walsh, R., Kinetics of the gas phase reaction between iodine and monogermane and the bond dissociation energy D(H3Ge-H), Int. J. Chem. Kinet., 1983, 15, 547. [all data]

Doncaster and Walsh, 1979
Doncaster, A.M.; Walsh, R., J. Phys. Chem., 1979, 83, 578. [all data]

Jones, McDonald, et al., 1989
Jones, M.T.; McDonald, R.N.; Schell, P.L.; Ali, M.H., Kinetics and Mechanism of Halogen Atom Transfer Reactions between Haloalkanes and Several 17-Electron Transition Metal Complex Negative Ions in the Gas Phase, J. Am. Chem. Soc., 1989, 111, 16, 5983, https://doi.org/10.1021/ja00198a001 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References