silicon monoxide

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Gas phase ion energetics data

Go To: Top, 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
IE (evaluated)11.49 ± 0.20eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)777.8kJ/molN/AHunter and Lias, 1998at O; HL
Proton affinity (review)533.kJ/molN/AHunter and Lias, 1998at Si; HL
Quantity Value Units Method Reference Comment
Gas basicity750.4kJ/molN/AHunter and Lias, 1998at O; HL
Gas basicity500.5kJ/molN/AHunter and Lias, 1998at Si; HL

Ionization energy determinations

IE (eV) Method Reference Comment
11.3 ± 0.2EINakagawa, Asano, et al., 1981LLK
11.43EVALHuber and Herzberg, 1979LLK
10.2 ± 0.5EIThompson, 1973LLK
11.3 ± 0.3EIStearns and Kohl, 1973LLK
11.3 ± 0.5EIMuenow, 1973LLK
11.5 ± 0.3EIHildenbrand, 1972LLK
11.58 ± 0.10EIHildenbrand, 1971LLK
11.6 ± 0.2EIHildenbrand and Murad, 1969RDSH
~11.67SHildenbrand and Murad, 1969RDSH

Constants of diatomic molecules

Go To: Top, 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 August, 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 28Si16O
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
Theoretical potential curves and spectroscopic constants for the ground and several valence excited states Heil and Schaefer, 1972 Oddershede and Elander, 1976.
P 1Σ+ (5pσ) 82019 [1121.5] Z   [0.692] 1    [1.547] P ← X 2 R 81960.3 Z
↳missing citation
O 1Π [82208.1]    [0.556] 3    [1.726] O ← X R 81588.8 Z
↳Lagerqvist, Renhorn, et al., 1973
N 1Π (81232) [(1024)]   [0.635] 4    [1.615] N ← X R 81124.8 Z
↳Lagerqvist, Renhorn, et al., 1973
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
M 1Π 81203 [833]   [0.640] 5    [1.609] M ← X 2 R 81000.5 Z
↳Lagerqvist, Renhorn, et al., 1973
L 1Σ+ (5sσ) 80783 [1102.2] Z   [0.701] 6    [1.537] L ← X 2 R 80715.3 Z
↳missing citation
K 1Σ+ 78369 [905.8] Z i  [0.615] 7    [1.641] K ← X 2 R 78202.6 Z
↳Lagerqvist, Renhorn, et al., 1973
J 1Π (4pπ) 76381 [1146]   [0.6983] 8    [1.5402] J ← X 2 R 76334.3 Z
↳missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
h 3Πi (70790) 9 (431) 9   ~0.589 B1     ~1.677 r1  
↳Lagerqvist and Renhorn, 1974
I 1Π (70510) [878.9] Z 10  [0.614] 10     [1.643] I ← X R 70333.7 Z
↳Lagerqvist, Renhorn, et al., 1973
H 1Σ+ (4pσ) 69727 [1109.25] Z   0.7146 0.0094 11    1.5225 H ← X 2 R 69662.26 Z
↳missing citation; missing citation
G 1Π (69670) [862.88] Z 10  [0.6292] 10  [1.2E-6]  [1.6226] G ← X R 69483.06 Z
↳missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
F 1Σ+ (4sσ) 68532.0 1120.00 12 Z 7.345 12  [0.6938] 13    [1.5452] F ← X 2 R 68470.90 Z
↳missing citation; missing citation
Many unidentified emission bands in the region 21800 - 31500 cm-1.
g 3Σ+ (4sσ) [68091.4]    [0.71588]   [1.42E-6]  [1.52116] g → b V 33567.95 Z
↳missing citation
            33639.01 Z
            33711.59 Z
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
f 3Πi 59283.1 488.4 14 3.4  0.586 14 0.0145  3E-6  1.681 f → b R 25146.6 H
↳missing citation; Bredohl, Cornet, et al., 1975; Shanker, Linton, et al., 1976
59260.8 488.4 14 3.4  0.586 14 0.0145  3E-6  1.681 f → b R 25051.7 H
↳missing citation; Bredohl, Cornet, et al., 1975; Shanker, Linton, et al., 1976
59236.8 488.4 14 3.4  0.586 14 0.0145  3E-6  1.681 f → b R 24956.7 H
↳missing citation; Bredohl, Cornet, et al., 1975; Shanker, Linton, et al., 1976
c 3Σ(+) 57551.3 949.10 H 17.30  0.6841 15 0.0079  1.7E-6  1.5561 c → b VR 23498.05 Z
↳missing citation; Singh, Bredohl, et al., 1974; Shanker, Linton, et al., 1976
            23569.11 Z
            23641.69 Z
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
E 1Σ+ 52860.9 675.52 Z 4.204  0.54727 16 0.00555 0.000022 1.434E-6 0.018E-6 1.73978 E ↔ X 17 18 R 52578.31 Z
↳missing citation; Barrow and Stone, 1975; missing citation
A 1Π 42835.4 852.8 Z 6.43 19 .0238 19 0.6307 20 21 0.00660  1.43E-6  1.6206 A ↔ X 22 23 R 42640.71 Z
↳missing citation; Singh, Upadhya, et al., 1969; missing citation; missing citation; missing citation; missing citation
D 1Δ 38823 24 730 3.9  0.5538 21 0.00516    1.729  
C 1Σ- 38624 24 740 4.27  0.5555 21 (0.0052)    1.727  
e 3Σ- 38309 24 748 4.19  0.5563 0.00515    1.726  
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
d 3Δr 36487 24 25 767 4.1  0.5631 (0.0052)    1.715  
b 3Π2 34018.5 1013.8 (Z) 7.57  [0.68920] 26 0.00440  [2.22E-6]  1.5624 b → X R 33904.20 Z
↳Bredohl, Cornet, et al., 1974; Hager, Wilson, et al., 1974; Hager, Harris, et al., 1975; Linton and Capelle, 1977
b 3Π1 33947.4 27 1013.8 (Z) 7.57  [0.67607] ]26 21 0.00440  [1.25E-6]  1.5624 b → X R 33833.14 Z
↳Bredohl, Cornet, et al., 1974; Hager, Wilson, et al., 1974; Hager, Harris, et al., 1975; Linton and Capelle, 1977
b 3Π0 33874.8 1013.8 (Z) 7.57  [0.66386] 26 0.00440  [0.50E-6]  1.5624 b → X R 33760.56 Z
↳Bredohl, Cornet, et al., 1974; Hager, Wilson, et al., 1974; Hager, Harris, et al., 1975; Linton and Capelle, 1977
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
a 3Σ+ (33630) (790) 28 (4.1) 28  (0.57) 28 21 (0.0052) 28    (1.70) 28 a → X R 33409 H
↳Hager, Wilson, et al., 1974; Hager, Harris, et al., 1975; Linton and Capelle, 1977
X 1Σ+ 0 1241.557 Z 5.966 29 0.0054557 0.7267512 21 0.0050377 30 2.35E-6 30 0.980E-6  1.509739 31  
↳Hedelund and Lambert, 1972; Beer, Lambert, et al., 1974
Rotation sp. 32
↳Torring, 1968; Honerjager and Tischer, 1974; Lovas and Krupenie, 1974; Manson, Clark, et al., 1977
Mol. beam rf el. reson. 33
↳Raymonda, Muenter, et al., 1970; Davis and Muenter, 1974

Notes

1Only v=0 and 1 observed; B1 = 0.703. Both levels are perturbed.
2Corresponding data for Si18O and confirmation of the vibrational numbering Lagerqvist and Renhorn, 1974, 2.
3Only one strongly perturbed level observed, vibrational numbering uncertain.
4v=1 diffuse. Vibrational numbering doubtful.
5Of the two observed levels only v=0 has been partially analyzed.
6v=0 strongly perturbed. Only fragments of the 1-0 band observed, B1 = 0.67. The 2-0 band 1207 (82850 cm-1) has very broad lines.
7Higher ΔG and Bv values (v ≤ 5) are irregular.
8v=0 strongly perturbed; v=1 observed but not analyzed.
9v=1 observed in a perturbation of H 1Σ+ (v=1); A1 ~ -36. Slightly different constants are given by Renhorn, 1976: Te = 70826, A1= -33.2, we = 414, B1 = 0.5763.
10The G and I states interact strongly. Higher ΔG and Bv values are irregular. The vibrational assignments of Lagerqvist, Renhorn, et al., 1973 have been revised by Lagerqvist and Renhorn, 1974, 2 to account for isotope shifts; the vibrational numbering of the I state is still in doubt, see Renhorn, 1976. The linewidth in bands labelled G-X [according to the new assignments of Lagerqvist and Renhorn, 1974, 2] increases with v'. G(v=3) is perturbed by a 3Σ+ state (probably v=4 of g 3Σ+) having B = 0.687, Tv = 71937 cm-1.
11v=1 perturbed by h 3Πi (v=1), see 9.
12These constants represent only v=0, 1, 2. There are vibrational perturbations for higher v which may also affect the lower levels.
13B1 = 0.6888, B2 = 0.6785.
14Approximate constants from a partial analysis of the 1-0, 3-0, 4-0 bands Cornet and Dubois, 1972, Bredohl, Cornet, et al., 1975; vibrational constants confirmed by Shanker, Linton, et al., 1976. The v=0 level is perturbed Bredohl, Cornet, et al., 1975; according to Verma and Shanker, 1976 the 3Π1 component interacts strongly with A 1Π(v=23). Verma and Shanker, 1976 give constants which differ considerably from those of Bredohl, Cornet, et al., 1975.
15Spin splitting constants for v=1: λ= 0.298, γ = -0.002 Nagaraj and Verma, 1970.
16RKR potential curve Lakshman, Rao, et al., 1976; notice that the total energies of the potential curves calculated by Lakshman, Rao, et al., 1976 are unreliable since the Te values used by them are, in fact, T00 values.
17Radiative lifetime τ(v=1...7) = 10.5 ns Elander and Smith, 1973. These authors have calculated Franck-Condon factors and f values for bands of the v'=0 progression and have determined the r dependence of the transition moment.
18A new emission system reported by Bredohl, Cornet, et al., 1973 has been shown Barrow and Stone, 1975 to be part of the E →X system with high v' and v"; see also Shanker, Linton, et al., 1976.
19 Field, Lagerqvist, et al., 1976
20The A 1Π state is extensively perturbed by levels of d 3Δ, e 3Σ-, C 1Σ-, D 1Δ; see Field, Lagerqvist, et al., 1976 who give a very detailed analysis of these perturbations for 28Si16O and 28Si18O. Selective enhancement of perturbed and corresponding "extra" lines in emission under fast pumping conditions Bredohl, Remy, et al., 1976.
21RKR potential energy curves for the eight lowest states Field, Lagerqvist, et al., 1976; see also Nair, Singh, et al., 1965, Lakshman, Rao, et al., 1976 and 16 concerning the results of Lakshman, Rao, et al., 1976.
22Radiative lifetime τ = 9.6 ns [phase-shift method Smith and Liszt, 1972] corresponding to fel = 0.13; see also Czernichowski and Zyrnicki, 1970. Considerably smaller f values have been derived by Main, Morsell, et al., 1968, Rusin, 1970; for a summary of reported f values see Oddershede and Elander, 1976 whose theoretical calculations predict τ = 32 ns.
23Franck-Condon factors Nicholls, 1962, Liszt and Smith, 1972, Renhorn, 1976. Isotope shifts for 29Si16O and 30Si16O Podkorytova, 1975, Shanker, Linton, et al., 1976.
24All constants for these states derived from perturbations in A 1Π Lagerqvist and Uhler, 1953, Field, Lagerqvist, et al., 1976.
25A = +8. There is a strong spin-orbit interaction between 3Δ2 and 1Δ2 which causes a large asymmetry in the spin splitting of d 3Δ Field, Lagerqvist, et al., 1976.
26Effective B0 values Singh, Bredohl, et al., 1974; using instead sums of Δ2F(J) for the three components Nagaraj and Verma, 1970 obtain B0 = 0.67668 Nagaraj and Verma, 1970. Λ-type doubling in 3Π0 and 3Π1 Singh, Bredohl, et al., 1974.
27A0 = +73.19, A1= +73.02 Nagaraj and Verma, 1970.
28Predicted constants Field, Lagerqvist, et al., 1976; see also Heil and Schaefer, 1972, Oddershede and Elander, 1976. Only v'=0 has been observed in chemiluminescence. From partially resolved rotational structure Linton and Capelle, 1977 derive B0 ~ 0.59.
29These are the constants of Barrow and Stone, 1975, Field, Lagerqvist, et al., 1976 which are very similar to the old constants of Lagerqvist and Uhler, 1953 and the more recent ones of Beer, Lambert, et al., 1974 (rotation -vibration spectra); see also Cornet, 1971, Bosser, Lebreton, et al., 1972.
30 Manson, Clark, et al., 1977
31Rot.-vibr. Sp. 36
32Several microwave lines have been observed in interstellar space and some extended stellar atmospheres, see e.g. Kaifu, Buhl, et al., 1975, Buhl, Snyder, et al., 1975. Maser action is prevalent.
33μel(v) = 3.0882 + 0.0197(v+1/2) D for v≤3 Raymonda, Muenter, et al., 1970; for gJ factors (-0.1536 μN for v=0) and other magnetic proper ties see Davis and Muenter, 1974, also Honerjager and Tischer, 1974.
34Average of several thermochenical determinations; see the summary in the Appendix of Hildenbrand and Murad, 1974, also Coppens, Smoes, et al., 1967, Nagai, Niwa, et al., 1973.
35Average of the values obtained on the assumption that F, L, ... and H,P, ... are the first members of two Rydberg series converging to X 2Σ+ of SiO+ Lagerqvist, Renhorn, et al., 1973, Lagerqvist and Renhorn, 1974, 2. The electron impact appearance potential is 11.58 eV Hildenbrand and Murad, 1969, Hildenbrand, 1971.
36Observed in late-type stars Beer, Lambert, et al., 1974, Singh, 1975.

References

Go To: Top, 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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Nakagawa, Asano, et al., 1981
Nakagawa, H.; Asano, M.; Kubo, K., Mass spectrometric study of the vaporization of lithium metasilicate, J. Nucl. Mater., 1981, 102, 292. [all data]

Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules,, Van Nostrand Reinhold Co., 1979, ,1. [all data]

Thompson, 1973
Thompson, K.R., Mass spectrometric determination of the atomization energies of AlSiO(g) and Al2O(g), High Temp. Sci., 1973, 5, 62. [all data]

Stearns and Kohl, 1973
Stearns, C.A.; Kohl, F.J., Mass spectrometric determination of the dissociation energies of gaseous Al2, AlSi, and AlSiO, High Temp. Sci., 1973, 5, 113. [all data]

Muenow, 1973
Muenow, D.W., Mass spectrometric evidence for the gaseous silicon oxide nitride molecule and its heat of atomizaton, J. Phys. Chem., 1973, 77, 970. [all data]

Hildenbrand, 1972
Hildenbrand, D.L., The gaseous equilibrium Ge + SiO = GeO + Si and the dissociation energy of SiO, High Temp. Sci., 1972, 4, 244. [all data]

Hildenbrand, 1971
Hildenbrand, D.L., First ionization potentials of the molecules BF, SiO and GeO, Intern. J. Mass Spectrom. Ion Phys., 1971, 7, 255. [all data]

Hildenbrand and Murad, 1969
Hildenbrand, D.L.; Murad, E., Dissociation energy and ionization potential of silicon monoxide, J. Chem. Phys., 1969, 51, 807. [all data]

Heil and Schaefer, 1972
Heil, T.G.; Schaefer, H.F., III, Potential curves for the valence-excited states of silicon monoxide. A theoretical study, J. Chem. Phys., 1972, 56, 958. [all data]

Oddershede and Elander, 1976
Oddershede, J.; Elander, N., Spectroscopic constants and radiative lifetimes for valence-excited bound states in SiO, J. Chem. Phys., 1976, 65, 3495. [all data]

Lagerqvist, Renhorn, et al., 1973
Lagerqvist, A.; Renhorn, I.; Elander, N., The spectrum of SiO in the vacuum ultraviolet region, J. Mol. Spectrosc., 1973, 46, 285. [all data]

Lagerqvist and Renhorn, 1974
Lagerqvist, A.; Renhorn, I., A singlet-triplet perturbation in the band spectrum of SiO, Acta Phys. Acad. Sci. Hung., 1974, 35, 155. [all data]

Bredohl, Cornet, et al., 1975
Bredohl, H.; Cornet, R.; Dubois, I., A correction to the vibrational numbering of the c3Πi-a3Πr transition of SiO, J. Phys. B:, 1975, 8, 16. [all data]

Shanker, Linton, et al., 1976
Shanker, R.; Linton, C.; Verma, R.D., The chemiluminescent flame spectrum of SiO, J. Mol. Spectrosc., 1976, 60, 197. [all data]

Singh, Bredohl, et al., 1974
Singh, M.; Bredohl, H.; Remy, F.; Dubois, I., The d3Σ-a3Πr transition of SiO, Can. J. Phys., 1974, 52, 569. [all data]

Barrow and Stone, 1975
Barrow, R.F.; Stone, T.J., The identification of a new band system associated with gaseous silicon monoxide, J. Phys. B:, 1975, 8, 13. [all data]

Singh, Upadhya, et al., 1969
Singh, J.; Upadhya, K.N.; Nair, K.P.R., On the ultraviolet band system of silicon monoxide, Indian J. Phys., 1969, 43, 665. [all data]

Bredohl, Cornet, et al., 1974
Bredohl, H.; Cornet, R.; Dubois, I.; Remy, F., The a3Πr-X1Σ+ transition of SiO, J. Phys. B:, 1974, 7, 66. [all data]

Hager, Wilson, et al., 1974
Hager, G.; Wilson, L.E.; Hadley, S.G., Reactions of atomic silicon and germanium with nitrous oxide to produce electronically excited silicon monoxide and germanium monoxide, Chem. Phys. Lett., 1974, 27, 439. [all data]

Hager, Harris, et al., 1975
Hager, G.; Harris, R.; Hadley, S.G., The a3Σ+ → X1Σ+ and b3Π → X1Σ+ band systems of SiO and the a3Σ+ → X1Σ+ band system of GeO observed in chemiluminescence, J. Chem. Phys., 1975, 63, 2810. [all data]

Linton and Capelle, 1977
Linton, C.; Capelle, G.A., Chemiluminescence of Si + N2O flames, J. Mol. Spectrosc., 1977, 66, 62. [all data]

Hedelund and Lambert, 1972
Hedelund, J.; Lambert, D.L., Transition probabilities for the vibration-rotation bands of silicon monoxide, Astrophys. Lett., 1972, 11, 71. [all data]

Beer, Lambert, et al., 1974
Beer, R.; Lambert, D.L.; Sneden, C., The silicon monoxide radical and the atmosphere of α orionis, Publ. Astron. Soc. Pac., 1974, 86, 806. [all data]

Torring, 1968
Torring, T., Das Mikrowellenrotationsspektrum des SiO, Z. Naturforsch. A, 1968, 23, 777. [all data]

Honerjager and Tischer, 1974
Honerjager, R.; Tischer, R., gJ-Faktor der Molekeln SiO und PbTe und Anisotropie der Magnetisierbarkeit von SiO, Z. Naturforsch. A, 1974, 29, 1695. [all data]

Lovas and Krupenie, 1974
Lovas, F.J.; Krupenie, P.H., Microwave spectra of molecules of astrophysical interest. VII. Carbon monoxide, carbon monosulfide, and silicon monoxide, J. Phys. Chem. Ref. Data, 1974, 3, 245. [all data]

Manson, Clark, et al., 1977
Manson, E.L., Jr.; Clark, W.W.; de Lucia, F.C.; Gordy, W., Millimeter spectrum and molecular constants of silicon monoxide, Phys. Rev. A: Gen. Phys., 1977, 15, 223. [all data]

Raymonda, Muenter, et al., 1970
Raymonda, J.W.; Muenter, J.S.; Klemperer, W.A., Electric dipole moment of SiO and GeO, J. Chem. Phys., 1970, 52, 3458. [all data]

Davis and Muenter, 1974
Davis, R.E.; Muenter, J.S., Magnetic properties of silicon and germanium monoxide, J. Chem. Phys., 1974, 61, 2940. [all data]

Lagerqvist and Renhorn, 1974, 2
Lagerqvist, A.; Renhorn, I., The spectrum of silicon monoxide (oxygen-18) in the vacuum ultraviolet region, J. Mol. Spectrosc., 1974, 19, 157. [all data]

Renhorn, 1976
Renhorn, Dissertation, Stockholm, 1976, 1. [all data]

Cornet and Dubois, 1972
Cornet, R.; Dubois, I., New electronic transitions of SiO, Can. J. Phys., 1972, 50, 630. [all data]

Verma and Shanker, 1976
Verma, R.D.; Shanker, R., Deperturbation study of the 0-1 band of the d3Πi-b3Πr transition of the SiO molecule, J. Mol. Spectrosc., 1976, 63, 553. [all data]

Nagaraj and Verma, 1970
Nagaraj, S.; Verma, R.D., A 3Σ-3Π transition of the SiO molecule, Can. J. Phys., 1970, 48, 1436. [all data]

Lakshman, Rao, et al., 1976
Lakshman, S.V.J.; Rao, T.V.R.; Naidu, G.T., The true potential energy curves for different states of SiO and SiS molecules, Pramana, 1976, 7, 369. [all data]

Elander and Smith, 1973
Elander, N.; Smith, W.H., Radiative lifetimes and band oscillator strengths for metal oxides. II. SiO E 1Σ+-X1Σ+, Astrophys. J., 1973, 184, 311. [all data]

Bredohl, Cornet, et al., 1973
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Field, Lagerqvist, et al., 1976
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Bredohl, Remy, et al., 1976
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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]

Smith and Liszt, 1972
Smith, W.H.; Liszt, H.S., Radiative lifetimes and absolute oscillator strengths for the SiO A1Π-X1Σ+ transition, J. Quant. Spectrosc. Radiat. Transfer, 1972, 12, 505. [all data]

Czernichowski and Zyrnicki, 1970
Czernichowski, A.; Zyrnicki, W., Determination of the band oscillator strengths (0,1) and (0,2) for the A1Π-X1Σ+ system in the SiO molecule, Acta Phys. Pol., 1970, 37, 865. [all data]

Main, Morsell, et al., 1968
Main, R.P.; Morsell, A.L.; Hooker, W.J., Measurement of the oscillator strength of the SiO (A1Π - X1Σ+) band system, J. Quant. Spectrosc. Radiat. Transfer, 1968, 8, 1527. [all data]

Rusin, 1970
Rusin, A.D., Excitation of the SiO spectrum by an explosion in a spherical bomb, Moscow Univ. Chem. Bull. Engl. Transl., 1970, 25, 11, In original 397. [all data]

Nicholls, 1962
Nicholls, R.W., Franck-Condon factors to high vibrational quantum numbers II: SiO, MgO, SrO, AlO, VO, NO, J. Res. Nat. Bur. Stand. Sect. A, 1962, 66, 227. [all data]

Liszt and Smith, 1972
Liszt, H.S.; Smith, W.H., RKR Franck-Condon factors for blue and ultraviolet transitions of some molecules of astrophysical interest and some comments on the interstellar abundance of CH, CH+, and SiH, J. Quant. Spectrosc. Radiat. Transfer, 1972, 12, 947. [all data]

Podkorytova, 1975
Podkorytova, N.S., Analysis and isotropic effect for Si28O and Si29O molecules, Opt. Spectrosc. Engl. Transl., 1975, 38, 637, In original 1103. [all data]

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Lagerqvist, A.; Uhler, U., The ultra-violet band-system of silicon monoxide, Ark. Fys., 1953, 6, 95. [all data]

Cornet, 1971
Cornet, R., Constantes vibrationnelles et energies de dissociation des etats X1Σ+ et A1Π de SiO, Bull. Cl. Sci. Acad. R. Belg., 1971, 57, 1069. [all data]

Bosser, Lebreton, et al., 1972
Bosser, G.; Lebreton, J.; Marsigny, L., Nouvelles bandes du systeme A1Π→X1Σ+ de SiO, C.R. Acad. Sci. Paris, Ser. C, 1972, 275, 531. [all data]

Kaifu, Buhl, et al., 1975
Kaifu, N.; Buhl, D.; Snyder, L.E., Vibrationally excited SiO: a new type of maser source in the millimeter wavelength region, Astrophys. J., 1975, 195, 359. [all data]

Buhl, Snyder, et al., 1975
Buhl, D.; Snyder, L.E.; Lovas, F.J.; Johnson, D.R., Is there a maser in the silicon monoxide ground state, Astrophys. J., 1975, 201, 29. [all data]

Hildenbrand and Murad, 1974
Hildenbrand, D.L.; Murad, E., Mass spectrometric studies of gaseous ThO and ThO2, J. Chem. Phys., 1974, 61, 1232. [all data]

Coppens, Smoes, et al., 1967
Coppens, P.; Smoes, S.; Drowart, J., Mass spectrometric determination of the dissociation energies of the molecules GeS, ScS, YS, LaS, and CeS, Trans. Faraday Soc., 1967, 63, 2140. [all data]

Nagai, Niwa, et al., 1973
Nagai, S.I.; Niwa, K.; Shinmei, M.; Yokokawa, T., Knudsen effusion study of silica, J. Chem. Soc. Faraday Trans. 1, 1973, 69, 1628. [all data]

Singh, 1975
Singh, P.D., The silicon monoxide radical in M stars - the fundamental rotation-vibration band of SiO, Astron. Astrophys., 1975, 44, 411. [all data]

Notes

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