Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Bismuth monosulfide


Constants of diatomic molecules

Go To: Top, 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 May, 1976

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 209Bi32S
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
One of two systems of ultra-violet bands attributed to BiS is, in fact, the B - X system of S2 [see Barrow, Stobart, et al., 1967]. The other, consisting of V(?) shaded bands in the region 43200 - 46900 cm-1, appears to include bands which the same author ( Sur, 1951) also assigned to SbS. In the later case the bands were described as red-degraded.
A 2Pi1/2 leq13343.9 geq303.74 1 H 1.159  geq0.09258 1 2 0.000416  3.55E-8  leq2.563 A larrow X 3 R leq13291.5 1 H
Barrow, Stobart, et al., 1967
X 2Pi1/2 0 408.71 H 1.46  [0.112764] 4 (0.000486)  [3.34E-8]  2.3194  

Notes

1Vibrational numbering uncertain.
2|Deltanufe| ~0.006(J+1/2) [v=7,8].
3Line widths of 0.45 cm-1 result from unresolved nuclear magnetic hyperfine structure.
4Large Omega-type doubling, |Deltanufe(v=0)|= 0.1135(J+1/2).
5Thermochemical value (mass-spectrom.) Uy and Drowart, 1969, Cubicciotti, 1963.

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.

Barrow, Stobart, et al., 1967
Barrow, R.F.; Stobart, O.V.; Vaughan, H., Absorption bands of gaseous BiS and BiSe, Proc. Phys. Soc. London, 1967, 90, 555. [all data]

Sur, 1951
Sur, P.K., The absorption spectrum of SbS molecule, Proc. Natl. Acad. Sci. India Sect. A, 1951, 20, 251-259. [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]

Cubicciotti, 1963
Cubicciotti, D., Thermodynamics of liquid solutions of bismuth and sulfur, J. Phys. Chem., 1963, 67, 118. [all data]


Notes

Go To: Top, Constants of diatomic molecules, References