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Diantimony


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 (121,123)Sb2
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Fragments of other emission band systems 11900 - 13900 (V shaded), 23800 - 27800, 33300 - 34500 cm-1 (R shaded).
Mrozowski and Santaram, 1967
U (70194) [272] 1 2         U larrow X 70195
Donovan and Strachan, 1971
M (63258) [152] 3 H 4         M larrow X 63199 H
Donovan and Strachan, 1971
I (59142) [210] 5 H 6         I larrow X 59112 H
Donovan and Strachan, 1971
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
G (53888) [185] 7 H         G larrow X R 53846 H
missing citation; Topouzkhanian, Sibai, et al., 1974; Sibai, Topouzkhanian, et al., 1975
E (48645) [228] 8 H 9         E larrow X 48624 H
missing citation; Topouzkhanian, Sibai, et al., 1974
F 44780 226.0 10 H 1.17        (F larrow X) (R) 44758 H
Nakamura and Shidel, 1935; Topouzkhanian, Sibai, et al., 1974
H (44329) [479] 11 H 12         H larrow X V (44433) 11 H
Sibai, Topouzkhanian, et al., 1975
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
D (32087) [209.6] 13 H         D lrarrow X R 32057 H
Naude, 1935; Mrozowski and Santaram, 1967
B 0u+ 19068.9 218.08 H 0.537  B2 = 0.044844 14   D2 = 9.2E-9  r2 = 2.4835 B lrarrow X R 19043.0 H
Almy, 1937; Almy and Schultz, 1937; Sfeila, Perdigon, et al., 1972
A 14991 217.2 H 0.44        A lrarrow X R 14965 H
Almy, 1937; Almy and Schultz, 1937
X 1Sigmag+ 0 269.98 H 0.588  B2 = 0.050447 14   D2 = 9.5E-9  r2 = 2.3415  

Notes

1DeltaG(3/2) = 254.
2Weak diffuse bands.
3DeltaG(3/2) = 149.
4Three sharp bands.
5DeltaG(3/2)= 216,DeltaG(5/2)= 217.
6Weak system.
7DeltaG(3/2,5/2) = 195,205 Topouzkhanian, Sibai, et al., 1974; G(7/2) = 196 47. Bands of 121Sb2 Sibai, Topouzkhanian, et al., 1975.
8DeltaG(3/2)= 216 Donovan and Strachan, 1971,DeltaG(5/2)= 217 Donovan and Strachan, 1971, DeltaG(7/2)= 220 Donovan and Strachan, 1971,DeltaG(9/2)= 246 Donovan and Strachan, 1971 [flash photolysis of SbH3]; Topouzkhanian, Sibai, et al., 1974 [high tempereature absorption] give no assignments.
9Three bands appear diffuse.
10 Topouzkhanian, Sibai, et al., 1974 express doubts about the correctness of the analysis.
11DeltaG(3/2) = 541, DeltaG(5/2)= 528, DeltaG(7/2)= 477, DeltaG(9/2)= 517, DeltaG(11/2)= 548, DeltaG(13/2)= 472. The constants assume v'=0,v"=2 for the first band at 43897 cm-1.
12Single progression, observed in 121Sb2.
13Levels up to v'=17 have been observed; the DeltaG values are irregular due to perturbations and vary between 208 and 228. Nakamura and Shidel, 1935 give different assignments and constants.
14Constants for 121,123Sb2 from the rotational analysis of the B rarrow X 2-2 band by Sfeila, Perdigon, et al., 1972 who give also constants for 121Sb2 and 123Sb2.
15Thermochemical value (mass-spectrometry) DeMaria, Drowart, et al., 1959, Kordis and Gingerich, 1973.

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.

Mrozowski and Santaram, 1967
Mrozowski, S.; Santaram, C., Electronic spectra of P2, As2, and Sb2 molecules, J. Opt. Soc. Am., 1967, 57, 522. [all data]

Donovan and Strachan, 1971
Donovan, R.J.; Strachan, P., Vacuum U.-V. spectra of transient molecules and radicals, J. Chem. Soc. Faraday Trans., 1971, 67, 3407. [all data]

Topouzkhanian, Sibai, et al., 1974
Topouzkhanian, A.; Sibai, A.M.; d'Incan, J., Observation et analyse vibrationnelle de nouveauz systemes de bandes d'absorption de molecules lourdes dans l'ultraviolet lointain Cas de Sb2 et Bi2, Z. Naturforsch. A, 1974, 29, 436. [all data]

Sibai, Topouzkhanian, et al., 1975
Sibai, A.M.; Topouzkhanian, A.; d'Incan, J., Nouveau systeme de bandes dans le spectre d'absorption de la molecule d'antimoine isotopique (Sb121-Sb121) entre 1 840 et 2 350 Å, C.R. Acad. Sci. Paris, Ser. B, 1975, 280, 79. [all data]

Nakamura and Shidel, 1935
Nakamura, G.; Shidel, T., 3. The band spectra of elements of the fifth group, Jpn. J. Phys., 1935, 10, 11. [all data]

Naude, 1935
Naude, S.M., The absorption spectrum of the diatomic antimony molecule (Sb2), South Afr. J. Sci., 1935, 32, 103-112. [all data]

Almy, 1937
Almy, G.M., Spectra of diatomic molecules of elements of the fifth group, J. Phys. Chem., 1937, 41, 47. [all data]

Almy and Schultz, 1937
Almy, G.M.; Schultz, H.A., Two new band systems of diatomic antimony, Phys. Rev., 1937, 51, 62. [all data]

Sfeila, Perdigon, et al., 1972
Sfeila, J.; Perdigon, P.; Martin, F.; Femelat, B., The B --> X system of diatomic antimony, J. Mol. Spectrosc., 1972, 42, 239. [all data]

DeMaria, Drowart, et al., 1959
DeMaria, G.; Drowart, J.; Inghram, M.G., Thermodynamic study of InSb with a mass spectrometer, J. Chem. Phys., 1959, 31, 1076. [all data]

Kordis and Gingerich, 1973
Kordis, J.; Gingerich, K.A., Mass spectroscopic investigation of the equilibrium dissociation of gaseous Sb2, Sb3, Sb4, SbP, SbP3, and P2, J. Chem. Phys., 1973, 58, 5141. [all data]


Notes

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