Lead chloride
- Formula: ClPb
- Molecular weight: 242.7
- CAS Registry Number: 13931-84-5
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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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 3.599 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1973 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 62.058 | cal/mol*K | Review | Chase, 1998 | Data 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 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1973 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Constants of diatomic molecules, References, Notes
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 ± 0.20 | EIAE | Hastie, Bloom, et al., 1967 | From PbCl2 |
Constants of diatomic molecules
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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 by: Klaus P. Huber and Gerhard H. Herzberg
Data collected through July, 1977
| Symbol | Meaning |
|---|---|
| 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) |
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | 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
| 1 | The 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. |
| 2 | Diffuse bands (prediss.) |
| 3 | Tentative rotational analyses Rao and Rao, 1964, Singh and Singh, 1968. |
| 4 | missing note |
| 5 | See Wieland and Newburgh, 1952 for a discussion of this value. |
| 6 | From 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
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Constants of diatomic molecules, References
- Symbols used in this document:
EA Electron affinity 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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