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tin monoxide

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 September, 1977

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 120Sn16O
Unidentified absorption bands, 64920 - 68360 cm-1.
Barrow and Rowlinson, 1954
G 58806 1 724 H 21        G larrow X R 58752 H
missing citation
F (57669) [466] H         F larrow X R 57492 H
missing citation
Unidentified absorption bands, 53250 - 57670 cm-1.
Barrow and Rowlinson, 1954
Absorption continuum between 51630 and 51920 cm-1.
Barrow and Rowlinson, 1954
E 36295 508.0 H 2.9 2        E lrarrow X R 36138 H
Loomis and Watson, 1934; missing citation
D 1Pi 29624 [573.6] Z 3.08 -0.135 0.31455 3 4 0.0025  4.0E-7  1.9487 D lrarrow X 5 6 R 29503.2 Z
missing citation; Jevons, 1938; missing citation
A large number of emission bands in the visible and near UV region has been observed by various methods Mahanti, 1931, Joshi and Yamdagini, 1967, Smith and Meyer, 1968. A satisfactory interpretation is still lacking.
B (1) (24890) [560]        [1.992] B larrow X R 24760
Deutsch and Barrow, 1964
A (0+) (24333) [555]   [0.2964]     [2.008] A larrow X R 24200
Deutsch and Barrow, 1964
X 1Sigma+ 0 [814.6] Z 3.73 H  0.3557191 4 0.0021429 -7E-7 (2.66E-7)  1.832505 7  
Ogden and Ricks, 1970
Microwave sp. 8
Torring, 1967


1 Barrow and Rowlinson, 1954 give 58809.6 which does not fit with their observed (or calculated) nu00.
2omegaexe = 2.9 - 5E-5(v+1/2)5 (valid for v' leq 17).
3Small Lambda-type doubling. Several perturbations, probably by a 1Pi (or 1Delta) state Lagerqvist, Nilsson, et al., 1959.
4RKR potential functions Nair, Singh, et al., 1965.
5Franck-Condon factors, relative band intensities, variation of electronic transition moment with r Dube and Rai, 1971.
6The observed 118Sn and 116Sn isotope shifts for the 0-1 band Lagerqvist, Nilsson, et al., 1959 seem to confirm the v' numbering. See, however, Smith and Meyer, 1968 who suggest that v' be increased by 1.
7IR Spectrum 11
8 Torring, 1967 gives rotational constants for seven isotopes. Dipole moment from Stark effect of rotation spectrum muel(v=0) = 4.32 D Mahanti, 1931. Zeeman effect Honerjager and Tischer, 1973, gJ(v=0) = -0.1463.
9Thermochemical value Colin, Drowart, et al., 1965. Extrapolation of the E-X v"=0 progression gives a dissociation limit at 45770 cm-1 Barrow and Rowlinson, 1954; if it corresponds to 3P1 + 3P1 [see Barrow, 1970] a dissociation energy of 5.45 eV would follow.
10Both v=1 and v=2 are extensively perturbed.
11In argon and nitrogen matrices.


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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Barrow and Rowlinson, 1954
Barrow, R.F.; Rowlinson, H.C., The absorption spectra of the gaseous monoxides of silicon, germanium and tin in the Schumann region, Proc. Roy. Soc. (London), 1954, A224, 374. [all data]

Loomis and Watson, 1934
Loomis, F.W.; Watson, T.F., A new band system of tin oxide, Phys. Rev., 1934, 45, 805. [all data]

Jevons, 1938
Jevons, W., A note on the near ultra-violet band system of SnO, Proc. Phys. Soc. London, 1938, 50, 910. [all data]

Mahanti, 1931
Mahanti, P.C., Die bandenspektren von zinnoxyd. Teil I. Die schwingungsanalyse der blau=violett=banden, Z. Phys., 1931, 68, 114. [all data]

Joshi and Yamdagini, 1967
Joshi, M.M.; Yamdagini, R., Flame emission spectrum of SnO molecule in the visible region, Indian J. Phys., 1967, 41, 275. [all data]

Smith and Meyer, 1968
Smith, J.J.; Meyer, B., The absorption and fluorescence spectrum of SnS and SnO: matrix-induced intersystem crossing, J. Mol. Spectrosc., 1968, 27, 304. [all data]

Deutsch and Barrow, 1964
Deutsch, E.W.; Barrow, R.F., Rotational analysis of bands of the 3«PI»-X1«SIGMA»+ system of stannous oxide, Nature (London), 1964, 201, 815. [all data]

Ogden and Ricks, 1970
Ogden, J.S.; Ricks, M.J., Matrix isolation studies of group IV oxides. III. Infrared spectra and structures of SnO, Sn2O2, Sn3O3, and Sn4O4, J. Chem. Phys., 1970, 53, 896. [all data]

Torring, 1967
Torring, T., Das Mikrowellenrotationsspektrum des SnO, Z. Naturforsch. A, 1967, 22, 1234. [all data]

Lagerqvist, Nilsson, et al., 1959
Lagerqvist, A.; Nilsson, N.E.L.; Wigartz, K., Rotational analysis of the A1«PI»-X1«SIGMA» system of SnO, Ark. Fys., 1959, 15, 521. [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]

Dube and Rai, 1971
Dube, P.S.; Rai, D.K., Electronic transition moment variation in D1«PI»-X1«SIGMA» system of SnO molecule and determination of the effective vibrational temperature, J. Phys. B:, 1971, 4, 579. [all data]

Honerjager and Tischer, 1973
Honerjager, R.; Tischer, R., gJ-Faktor der Molekeln SnO und PbO und Anisotropie ihrer magnetischen Suszeptibilitat, Z. Naturforsch. A, 1973, 28, 1372. [all data]

Colin, Drowart, et al., 1965
Colin, R.; Drowart, J.; Verhaegen, G., Mass spectrometric study of the vaporization of tin oxides. Dissociation energy of SnO, J. Chem. Soc. Faraday Trans., 1965, 61, 1364. [all data]

Barrow, 1970
Barrow, In Rosen, 1970, 1970, 323. [all data]

Rosen, 1970
Rosen, B., International tables of selected constants. 17. Spectroscopic data relative to diatomic molecules, Pub. Pergamon Press, Oxford, 1970, 0. [all data]


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