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lead sulphide

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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

Symbols used in the table of constants
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)Pb32S
F 47770 370 H (7.8)        F larrow X R 47729.5 1 H
missing citation
E (0+) (34000) 2          E larrow X 
missing citation
D 1 29653.2 297.83 Z 1.365  0.10160 3 0.00064    2.447 D larrow X 4 R 29587.4 Z
Rochester and Howell, 1935; Barrow, Fry, et al., 1963
C' (1) 25024.4 283.95 H 1.171        C' larrow X R 24952.3 H
Rochester and Howell, 1935
C (0+) 23212.9 303.93 H 1.436        C larrow X R 23150.7 H
Rochester and Howell, 1935
B 1 21847.4 282.17 H 0.856  0.09992 3 0.000602    2.467 B larrow X 4 R 21774.5 H
missing citation; Barrow, Fry, et al., 1963
A 0+ 18853.0 260.83 Z 0.363  0.09634 3 0.000262    2.513 A larrow X 4 R 18768.9 Z
missing citation; Barrow, Fry, et al., 1963
a 1 14892.9 285.9 H (0.88)  0.09267 0.000374    2.562 a larrow X 4 R 14821.9 Z
Barrow, Fry, et al., 1963
X 1Sigma+ 0 429.40 Z 1.30  0.11631868 5 3 0.00043509 6  3.415E-8 1.3E-10 2.286863 7  
Marino, Guerin, et al., 1974
Rotation sp. 8
Hoeft, Lovas, et al., 1969; Tiemann, Stieda, et al., 1975


1Observed value. Te, omegae, omegaexe represent only v'=1,2,...; the v'=0 bands are displaced by ~12 cm-1 to lower energies owing to a perturbation.
2Unclassified bands in the region 3100 - 2750 Å (32200 - 36400 cm-1).
3RKR potential functions Nair, Singh, et al., 1965.
4Also observed as laser-excited emission in Ne, Ar, Kr, SF6 matrices Teichman and Nixon, 1975. Lifetimes in solid Ar have been measured for a,A,B Teichman and Nixon, 1975: tau(a)=260 mus, tau(A)=0.95 mus, tau(B)=1.8 mus.
5Rotational constants for 208Pb32S; Be values for other isotopes and adiabatic corrections Tiemann, Stieda, et al., 1975.
6alphav= -5.31E-7(v+1/2)2 - 5.0E-9(v+1/2)3.
7Vibration sp. 10
8Dipole moment of 208Pb32S, muel(v=0) = 3.59 D Hoeft, Lovas, et al., 1969, from Stark effect of rotation spectrum Hoeft, Lovas, et al., 1969. A somewhat different value, muel(v=0)= 4.02 D Murty and Curl, 1969, is given by Murty and Curl, 1969. gJ = -0.06422 Tiemann, Stieda, et al., 1975 [Honerjager and Tischer, quoted in Tiemann, Stieda, et al., 1975].
9Thermochemical value (mass-spectrometry Colin and Drowart, 1962), revised Uy and Drowart, 1969. There appears to be a convergence of the E rarrow X bands near 2715 Å Vago and Barrow, 1947. If it is assumed that this limit corresponds to 3P1 + 3P1 one finds D00 = 3.54 eV Barrow, Fry, et al., 1963.
10In Ar matrix at 12 K. Teichman and Nixon, 1975 have also observed the Raman spectrum of the PbS fundamental in solid argon.


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.

Rochester and Howell, 1935
Rochester, G.D.; Howell, H.G., The vibrational analysis of the absorption spectrum of lead sulphide, Proc. R. Soc. London A, 1935, 148, 157. [all data]

Barrow, Fry, et al., 1963
Barrow, R.F.; Fry, P.W.; Le Bargy, R.C., Rotational analysis of bands of the absorption spectrum of PbS, Proc. Phys. Soc. London, 1963, 81, 697. [all data]

Marino, Guerin, et al., 1974
Marino, C.P.; Guerin, J.D.; Nixon, E.R., Infrared spectra of some matrix-isolated germanium, tin, and lead chalcogenides, J. Mol. Spectrosc., 1974, 51, 160. [all data]

Hoeft, Lovas, et al., 1969
Hoeft, J.; Lovas, F.J.; Tiemann, E.; Tischer, R.; Torring, T., Elektrisches Dipolmoment und Mikrowellenrotationsspektrum von SnO, SnS, PbO und PbS, Z. Naturforsch. A, 1969, 24, 1222. [all data]

Tiemann, Stieda, et al., 1975
Tiemann, E.; Stieda, W.U.; Torring, T.; Hoeft, J., Adiabatische Korrektur der Born-Oppenheimer-Naherung beim PbS, Z. Naturforsch. A, 1975, 30, 1606. [all data]

Nair, Singh, et al., 1965
Nair, K.P.R.; Singh, R.B.; Rai, D.K., Potential-energy curves and dissociation energies of oxides and sulfides of group IV A elements, J. Chem. Phys., 1965, 43, 3570. [all data]

Teichman and Nixon, 1975
Teichman, R.A., III; Nixon, E.R., The A --> X emission spectra of PbS and PbSe in neon matrices: enhanced emission from isotopes and matrix sites, J. Mol. Spectrosc., 1975, 57, 14. [all data]

Murty and Curl, 1969
Murty, A.N.; Curl, R.F., Jr., Dipole moments of the sulfides of Pb, Sn, and Si from Stark effect measurements, J. Mol. Spectrosc., 1969, 30, 102. [all data]

Colin and Drowart, 1962
Colin, R.; Drowart, J., Thermodynamic study of tin sulfide and lead sulfide using a mass spectrometer, J. Chem. Phys., 1962, 37, 1120. [all data]

Uy and Drowart, 1969
Uy, O.M.; Drowart, J., Mass spectrometric determination of the dissociation energies of the molecules BiO, BiS, BiSe and BiTe, J. Chem. Soc. Faraday Trans., 1969, 65, 3221. [all data]

Vago and Barrow, 1947
Vago, E.E.; Barrow, R.F., Ultra-violet absorption band-systems of PbO, PbS, PbSe and PbTe, Proc. Phys. Soc. London, 1947, 59, 449. [all data]


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