Lead chloride


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
Δfgas3.599kcal/molReviewChase, 1998Data last reviewed in June, 1973
Quantity Value Units Method Reference Comment
gas,1 bar62.058cal/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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 6000.
A 8.883430
B 0.029972
C 0.146806
D -0.017017
E -0.020039
F 0.882550
G 72.68110
H 3.599910
ReferenceChase, 1998
Comment Data last reviewed in June, 1973

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 by: John E. Bartmess

View reactions leading to ClPb+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
1.0 ± 0.20EIAEHastie, Bloom, et al., 1967From PbCl2

Constants of diatomic molecules

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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: Klaus P. Huber and Gerhard H. Herzberg

Data collected through July, 1977

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for (208)Pb35Cl
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
B (2Σ) 35199 1 382.1 1 H 1.05 1 2        B ← X1 V 35238 1 H
missing citation
A (1/2) 21865.0 228.7 H 0.78  3      A → X2 R 13546.2 H
Pannetier and Deschamps, 1965
X2 2Π3/2 8272.2 321.6 H 0.3 4        A ↔ X1 R 21827.4 H
Morgan, 1936; missing citation; missing citation; Singh, 1970
X1 2Π1/2 0 303.9 H 0.88  3       

Notes

1The revised vibrational analysis of the B ← X1 system by Cordes and Gehrke, 1966 leads to the expression ν = 34937.5 + 386.3(v'+1/2) - 1.36(v'+1/2)2 - 300.8(v"+1/2) + 1.04(v"+1/2)2 Cordes and Gehrke, 1966 and ν00 = 34980.2 Cordes and Gehrke, 1966.
2Diffuse bands (prediss.)
3Tentative rotational analyses Rao and Rao, 1964, Singh and Singh, 1968.
4missing note
5See Wieland and Newburgh, 1952 for a discussion of this value.
6From an electron impact study of PbCl2 by Hastie, Bloom, et al., 1967, 2 who have also determined the electron affinity of PbCl, E.A. = 1.0 eV.

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Constants of diatomic molecules, 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]

Hastie, Bloom, et al., 1967
Hastie, J.W.; Bloom, H.; Morrison, J.D., Electron Impact Studies of PbCl2, PbBr2, and PbBrCl, J. Chem. Phys., 1967, 47, 5, 158, https://doi.org/10.1063/1.1712136 . [all data]

Pannetier and Deschamps, 1965
Pannetier, G.; Deschamps, P., Observation en emission des deux sous-systemes A-X de PbCl, Bull. Soc. Chim. Fr., 1965, 10, 2933. [all data]

Morgan, 1936
Morgan, F., Absorption spectra of PbF, PbCl and PbBr, Phys. Rev., 1936, 49, 47. [all data]

Singh, 1970
Singh, S.P., A-X band system of PbCl in the visible region, Indian J. Pure Appl. Phys., 1970, 8, 114. [all data]

Cordes and Gehrke, 1966
Cordes, H.; Gehrke, F., Das ultraviolette Absorptionsspektrum des Bleimonochlorids, Z. Phys. Chem. (Neue Folge), 1966, 51, 281. [all data]

Rao and Rao, 1964
Rao, V.S.; Rao, P.T., Rotational analysis of the visible emission bands of the PbCl molecule, Z. Phys., 1964, 181, 58. [all data]

Singh and Singh, 1968
Singh, O.N.; Singh, I.S., Rotational analysis of the A-X bands of PbCl molecule, Curr. Sci., 1968, 37, 282. [all data]

Wieland and Newburgh, 1952
Wieland, K.; Newburgh, R., Uber einige neue Bandenspektren der Radikale PbCl, PbBr und PbJ, Helv. Phys. Acta, 1952, 25, 87. [all data]

Hastie, Bloom, et al., 1967, 2
Hastie, J.W.; Bloom, H.; Morrison, J.D., Electronimpact studies of PbCl2, PbBr2, and PbClBr, J. Chem. Phys., 1967, 47, 1580. [all data]


Notes

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