Lead chloride
- Formula: ClPb
- Molecular weight: 242.7
- CAS Registry Number: 13931-84-5
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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
| 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 who have also determined the electron affinity of PbCl, E.A. = 1.0 eV. |
References
Go To: Top, 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.
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
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, Constants of diatomic molecules, References
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