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Lead dichloride


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.

Quantity Value Units Method Reference Comment
Deltafgas-174.05kJ/molReviewChase, 1998Data last reviewed in June, 1973
Quantity Value Units Method Reference Comment
gas,1 bar317.19J/mol*KReviewChase, 1998Data last reviewed in June, 1973

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) 2000. - 6000.
A 58.07183
B 0.228260
C -0.174373
D 0.041056
E -0.264902
F -192.2665
G 385.9179
H -174.0540
ReferenceChase, 1998
Comment Data last reviewed in June, 1973

Condensed 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.

Quantity Value Units Method Reference Comment
Deltafliquid-344.25kJ/molReviewChase, 1998Data last reviewed in June, 1973
Quantity Value Units Method Reference Comment
liquid,1 bar153.37J/mol*KReviewChase, 1998Data last reviewed in June, 1973
Quantity Value Units Method Reference Comment
Deltafsolid-359.41kJ/molReviewChase, 1998Data last reviewed in June, 1973
Quantity Value Units Method Reference Comment
solid135.98J/mol*KReviewChase, 1998Data last reviewed in June, 1973

Liquid 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) 774. - 2000.
A 111.5040
B 3.652984×10-8
C -2.452679×10-8
D 5.473970×10-9
E 1.571306×10-9
F -383.8435
G 271.9474
H -344.2516
ReferenceChase, 1998
Comment Data last reviewed in June, 1973

Solid 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. - 774.
A 68.81676
B 28.22531
C 0.593413
D -0.167595
E -0.016515
F -381.2385
G 210.7280
H -359.4064
ReferenceChase, 1998
Comment Data last reviewed in June, 1973

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 (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
931. - 1154.4.420674564.909-194.347Barchuk and Dubovoi, 1973Coefficents calculated by NIST from author's data.
820. - 1227.4.637324896.563-168.921Stull, 1947Coefficents calculated by NIST from author's data.

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

IE (eV) Method Reference Comment
10.2PENovak and Potts, 1984LBLHLM
10.3 ± 0.1EIHastie, Bloom, et al., 1967RDSH
11.2 ± 0.2EIBloom and Hastie, 1966RDSH
10.34PENovak and Potts, 1984Vertical value; LBLHLM
10.11PEBerkowitz, 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
PbCl+10.7 ± 0.1ClEIHastie, Bloom, et al., 1967RDSH
PbCl+~7.1Cl-EIHastie, Bloom, et al., 1967RDSH
PbCl+11.7 ± 0.2ClEIBloom and Hastie, 1966RDSH

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:   C2nu     Symmetry Number sigma = 2


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a1 1 Sym str 314  C 322 solid solid 314 p gas
a1 2 Bend 99  C 99 p gas
b1 3 Anti str 299  D 299 solid solid 300 dp solid solid

Source: Shimanouchi, 1972

Notes

pPolarized
dpDepolarized
C3~6 cm-1 uncertainty
D6~15 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, NIST Free Links, 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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