Iodine atom

• Formula: I
• Molecular weight: 126.90447
• IUPAC Standard InChI: InChI=1S/I Copy

  
• IUPAC Standard InChIKey: ZCYVEMRRCGMTRW-UHFFFAOYSA-N Copy
• CAS Registry Number: 14362-44-8
• Chemical structure:
  This structure is also available as a 2d Mol file
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
  • Ion clustering data
• Data at other public NIST sites:
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  • NIST Atomic Spectra Database - Levels Holdings (on physics web site)
  • NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
  • Gas Phase Kinetics Database
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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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = 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
    C_p = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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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 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) +  (g) = C₁₂H₄BrF₃O₄W (g) +  (g)

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

C₁₂H₇IO₄W (g) +  (g) = C₁₂H₇BrO₄W (g) +  (g)

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

C₁₁H₅IO₄W (g) +  (g) = C₁₁H₅BrO₄W (g) +  (g)

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

(I₂^- • 4294967295) +  = I₂^-

By formula: (I₂^- • 4294967295I) + I = I₂^-

=  +  + 

By formula: C₂H₄ClI = I + Cl + C₂H₄

 (g) +  (g) =  (g) +  (g)

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

 (g) + C₃H₁₀Ge (g) = C₃H₉Ge (g) +  (g)

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

C₄BrClO₄Re +  = C₄BrIO₄Re^-

By formula: C₄BrClO₄Re + I = C₄BrIO₄Re^-

C₄ClO₄Re +  = C₄ClIO₄Re^-

By formula: C₄ClO₄Re + I = C₄ClIO₄Re^-

C₄BrIMnO₄ +  = C₄BrIMnO₄^-

By formula: C₄BrIMnO₄ + I = C₄BrIMnO₄^-

C₄ClIMnO₄ +  = C₄ClIMnO₄^-

By formula: C₄ClIMnO₄ + I = C₄ClIMnO₄^-

C₆H₅O₃Re +  = C₆H₅IO₃Re^-

By formula: C₆H₅O₃Re + I = C₆H₅IO₃Re^-

CAS Reg. No. 121175-69-7 +  = C₆H₅IMnO₃^-

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

C₅CrO₅^- +  = C₅CrIO₅^-

By formula: C₅CrO₅^- + I = C₅CrIO₅^-

C₃NiO₃^- +  = C₃INiO₃^-

By formula: C₃NiO₃^- + I = C₃INiO₃^-

C₄FeO₄^- +  = C₄FeIO₄^-

By formula: C₄FeO₄^- + I = C₄FeIO₄^-

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

• Symbols used in this document:
  

  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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