Chlorine atom

• Formula: Cl
• Molecular weight: 35.453
• IUPAC Standard InChI: InChI=1S/Cl Copy

  
• IUPAC Standard InChIKey: ZAMOUSCENKQFHK-UHFFFAOYSA-N Copy
• CAS Registry Number: 22537-15-1
• Chemical structure:
  This structure is also available as a 2d Mol file
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• 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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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.

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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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:
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

(CAS Reg. No. 12599-09-6 • 4294967295) +  = CAS Reg. No. 12599-09-6

By formula: (CAS Reg. No. 12599-09-6 • 4294967295Cl) + Cl = CAS Reg. No. 12599-09-6

CAS Reg. No. 666718-71-4 +  = Cl₂PS^-

By formula: CAS Reg. No. 666718-71-4 + Cl = Cl₂PS^-

=  +  + 

By formula: C₂H₄ClI = I + Cl + C₂H₄

C₄BrClO₄Re +  = C₄BrClO₄Re^-

By formula: C₄BrClO₄Re + Cl = C₄BrClO₄Re^-

C₄ClO₄Re +  = C₄Cl₂O₄Re^-

By formula: C₄ClO₄Re + Cl = C₄Cl₂O₄Re^-

C₄BrIMnO₄ +  = C₄BrClMnO₄^-

By formula: C₄BrIMnO₄ + Cl = C₄BrClMnO₄^-

C₄ClIMnO₄ +  = C₄Cl₂MnO₄^-

By formula: C₄ClIMnO₄ + Cl = C₄Cl₂MnO₄^-

C₆H₅O₃Re +  = C₆H₅ClO₃Re^-

By formula: C₆H₅O₃Re + Cl = C₆H₅ClO₃Re^-

CAS Reg. No. 121175-69-7 +  = C₆H₅ClMnO₃^-

By formula: CAS Reg. No. 121175-69-7 + Cl = C₆H₅ClMnO₃^-

C₅CrO₅^- +  = C₅ClCrO₅^-

By formula: C₅CrO₅^- + Cl = C₅ClCrO₅^-

C₃NiO₃^- +  = C₃ClNiO₃^-

By formula: C₃NiO₃^- + Cl = C₃ClNiO₃^-

C₄FeO₄^- +  = C₄ClFeO₄^-

By formula: C₄FeO₄^- + Cl = C₄ClFeO₄^-

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]

Lobring, Check, et al., 2005
Lobring, K.C.; Check, C.E.; Boggs, M.L.; Keating, P.R.; Sunderlin, L.S., Bond strengths in POCl3-, POCl2-, and PSCl2-, Int. J. Mass Spectrom., 2005, 241, 1, 75-81, https://doi.org/10.1016/j.ijms.2004.10.023 . [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]

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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