Lead dichloride

• Formula: Cl₂Pb
• Molecular weight: 278.1
• IUPAC Standard InChI: InChI=1S/2ClH.Pb/h2*1H;/q;;+2/p-2 Copy

  
• IUPAC Standard InChIKey: HWSZZLVAJGOAAY-UHFFFAOYSA-L Copy
• CAS Registry Number: 7758-95-4
• Chemical structure:
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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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.

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Gas phase ion energetics 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:
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

Appearance energy determinations

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:   C_2ν     Symmetry Number σ = 2

Source: Shimanouchi, 1972

Notes

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics 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.

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

Barchuk and Dubovoi, 1973
Barchuk, V.T.; Dubovoi, P.G., Measurement of a Saturated Vapor Pressure Over Highly Volitile Salt Melts, Ukr. Khim. Zh. (Russ. Ed.), 1973, 39, 8, 838-840. [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Novak and Potts, 1984
Novak, I.; Potts, A.W., Ultraviolet photoelectron spectra of gas phase and condensed tin and lead dihalides (MX₂, M = Sn, Pb X = Cl, Br, I), J. Electron Spectrosc. Relat. Phenom., 1984, 33, 1. [all data]

Hastie, Bloom, et al., 1967
Hastie, J.W.; Bloom, H.; Morrison, J.D., Electronimpact studies of PbCl₂, PbBr₂, and PbClBr, J. Chem. Phys., 1967, 47, 1580. [all data]

Bloom and Hastie, 1966
Bloom, H.; Hastie, J.W., Vapour phase composition above molten salt mixtures: a mass spectrometric study, Australian J. Chem., 1966, 19, 1003. [all data]

Berkowitz, 1972
Berkowitz, J., Photoelectron spectroscopic studies with a cylindrical-mirror analyzer in Electron Spectroscopy, ed. D.A. Shirley (North-Holland Pub. Co., Amsterdam), 1972. [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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• Symbols used in this document:
  

  AE	Appearance energy
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions

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