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boron fluoride


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 April, 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 11B19F
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
RydbergRydberg series (abs.) beginning with D, J, P, ... : nu(1-0) = 91330 - R/(n-0.52)2 nleq18.
missing citation
Rydberg series (abs.) beginning with D, J, P, ... : nu(0-0) = 89650 - R/(n-0.52)2 nleq15.
missing citation
Rydberg series (abs.) beginning with C, I, O, ... : nu(1-0) = 91330 - R/(n-0.66)2 nleq9.
Caton and Douglas, 1970
Rydberg series (abs.) beginning with C, I, O, ... : nu(0-0) = 89650 - R/(n-0.66)2 nleq9.
Caton and Douglas, 1970
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
R 1Sigma+ (6ssigma) [85848] 1          R larrow X V 85150 H
Caton and Douglas, 1970
P 1Pi (5ppi) 84077 [1673] HQ   [1.6511] 2   [6.4E-6] 2  [1.2103] P larrow X V 84215 HQ
Caton and Douglas, 1970
O 1Sigma+ (5psigma) 83680.2 1676 H 9.5  [1.6275]   [5.6E-6]  [1.2190] O larrow X V 83817.71 Z
Caton and Douglas, 1970
L 1Sigma+ (5ssigma) [83348.32]    [1.5578]   [-21.3E-6]  [1.2460] L larrow X V 82650.21 Z
Caton and Douglas, 1970
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
J 1Pi (4ppi) 80544 [1673.09] Z   1.6516 3 0.0162  [6.5E-6]  1.2101 J larrow X V 80681.98 Z
Caton and Douglas, 1970
h 3Pi 80230 [1679.2] HQ   [1.6475] 4   [6.2E-6]  [1.2116] h rarrow b V 19225.28 Z
Caton and Douglas, 1970
I 1Sigma+ (4psigma) 79631.39 1666.28 Z 12.57  1.6382 0.0174  [6.4E-6]  1.2150 I larrow X V 79763.28 Z
Caton and Douglas, 1970
H 1Sigma+ (3dsigma) [79389.32]    [1.6511]   [13.0E-6]  [1.2103] H larrow X V 78691.21 Z
Caton and Douglas, 1970
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
g 3Sigma+ [78771.9]    [1.6765]   5.1E-6  [1.2011] g rarrow b 5 V 16927.59 Z
Caton and Douglas, 1970
F 1Pi (3dpi) (77406) (1670) 6   [1.6723] 7 8   [8.9E-6]  [1.2026] F rarrow A V 26454.13
missing citation
           F larrow X V 77542.79 Z
Caton and Douglas, 1970
f 3Pi 77405 [1678.1] Z   [1.6417] 9   [5.0E-6]  [1.2138] f rarrow c V 10428.15 Z
missing citation
           f rarrow b V 16400.10 Z
Caton and Douglas, 1970
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
G 1Sigma+ (4ssigma) 76952 [1685.63] Z   1.6054 0.0147  [1.2E-6] 10  1.2074 G rarrow B V 11596.99
missing citation
           G lrarrow X V 77096.41 Z
Mal'tsev, 1960; missing citation
E 1Delta (3ddelta) (76292) (1581) 6   [1.6209] 11   [6.4E-6]  [1.2215] E rarrow A 5 25295.69 Z
missing citation; missing citation
e 3Sigma+ 75916 [1654.29] Z   1.6447 0.0151  [6.3E-6]  1.2126 e rarrow b 5 14899.56 Z
missing citation; Czarny and Felenbok, 1968; missing citation
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
D 1Pi (3ppi) 72144.42 [1661.96] Z 11.7 HQ  1.6282 12 0.0170  [6.3E-6]  1.2188 D lrarrow X V 72286.06 Z
Chretien and Miescher, 1949; Chretien, 1950; Mal'tsev, 1960; missing citation
d 3Pi 70710.4 1696.71 Z 11.01  1.6517 13 14 0.0176 15  [6.5E-6]  1.2101 d rarrow b 9711.65 Z
missing citation
C 1Sigma+ (3psigma) 69030.38 1613.10 Z 14.50  1.6238 0.0194  [7.3E-6]  1.2204 C rarrow A V 18046.53 Z
missing citation
           C lrarrow X V 69135.19 Z
Chretien and Miescher, 1949; missing citation; Mal'tsev, 1960; Caton and Douglas, 1970
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
c 3Sigma+ 67045 [1541.3] Z   [1.6030] 16   [5.5E-6] 16  [1.2283] c rarrow a V 38011.97 Z
Strong and Knauss, 1936; Barrow, Premaswarup, et al., 1958; Krishnamachari and Singh, 1965
B 1Sigma+ (3ssigma) 65353.93 1693.51 Z 12.61  1.6590 0.0178  [7.6E-6]  1.2074 B rarrow A V 14410.76
missing citation
           B lrarrow X V 65499.42 Z
Chretien and Miescher, 1949; missing citation; Mal'tsev, 1960; Caton and Douglas, 1970
b 3Sigma+ 61035.3 1629.28 Z 22.255  1.6385 0.0200 17  [7.0E-6]  1.2149 b rarrow a 18 V 32040.42 Z
Dull, 1935; Strong and Knauss, 1936; missing citation; Dodsworth and Barrow, 1955; Barrow, Premaswarup, et al., 1958; Krishnamachari and Singh, 1965
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A 1Pi 51157.45 1264.96 Z 12.53 19  1.4227 20 0.0180 21  [7.3E-6]  1.3038 A lrarrow X 22 23 R 51088.66 Z
Chretien and Miescher, 1949; missing citation; Onaka, 1957; missing citation; Caton and Douglas, 1970
a 3Pir 29144.3 24 1323.86 Z 9.20 25  1.4135 26 0.0158  [6.3E-6]  1.3081 a rarrow X R 29105.8 Z
Lebreton, Ferran, et al., 1975
X 1Sigma+ 0 1402.13 Z 11.84 27  [1.507235] 0.0198  [7.6E-6]  1.26259 28  
Lovas and Johnson, 1971

Notes

1Approximate description of the Rydberg electron Caton and Douglas, 1970; see also Lefebvre-Brion and Moser, 1965.
2Computed from the data for 10B9F: B0 = 1.7551, D0 = 7.2E-6, Deltanuef = +0.0146J(J+1).
3Deltanuef = +0.0056J(J+1) - ...
4Deltanuef = +0.0024N(N+l).
5Headless band.
6Estimated from observed isotope shifts.
7Deltanuef = +0.0423J(J+1) - ...
8Lines with J' leq ~6 are weak or absent, both in emission and in absorption.
9Deltanuef = -0.0289N(N+1)+ ...
10D1 = 22.8E-6
11Deltanuef ~ -4E-7J2(J+1)2.
12Deltanuef = +0.0009J(J+1).
13Deltanuef = +0.0011N(N+1).
14The emission from v=4 consists of Q branch lines only.
15missing note
16From Caton and Douglas, 1970. Barrow et.al. Barrow, Premaswarup, et al., 1958 give B0 = 1.6052 Barrow, Premaswarup, et al., 1958, D0 = 8.2E-6 Barrow, Premaswarup, et al., 1958.
17missing note
18Franck-Condon factors Pathak and Maheshwari, 1967.
19This state may have a potential hump of ~0.22 eV.
20Deltanuef ~ -0.0002J(J+1).
21missing note
22Radiative lifetime tau(v=0,1,2) = 2.8 ns; f00 = 0.40 Hesser and Dressler, 1966, Hesser, 1968.
23Franck Condon factors Wentink and Spindler, 1970.
24A = 24.25.
25missing note
26Lambda-type doubling; see Barrow, Premaswarup, et al., 1958.
27missing note
28Microwave sp. 31
29Thermochemical value (mass-spectrom.) Hildenbrand and Murad, 1965, Murad, Hildenbrand, et al., 1966. Extrapolation of A 1Pi gives 8.02 eV Barrow, 1960.
30Extrapolation of Rydberg series; 11.06 eV by electron impact Hildenbrand, 1971.
31muel(v=0) = 0.5 D. Values of eqQ(10,11B) in Lovas and Johnson, 1971. For computed ground state properties see Nesbet, 1964, Huo, 1965, Hegstrom and Lipscomb, 1966.

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.

Caton and Douglas, 1970
Caton, R.B.; Douglas, A.E., Electronic spectrum of the BF molecule, Can. J. Phys., 1970, 48, 432. [all data]

Mal'tsev, 1960
Mal'tsev, A.A., Isotope effect in the singlet spectral bands of the BF molecule, Opt. Spectrosc. Engl. Transl., 1960, 9, 225. [all data]

Czarny and Felenbok, 1968
Czarny, J.; Felenbok, P., Rotational analysis of the band at 14 900 cm-1 of a 3«SIGMA» - 3«SIGMA» system of the BF molecule, Chem. Phys. Lett., 1968, 2, 533. [all data]

Chretien and Miescher, 1949
Chretien, M.; Miescher, E., New electronic band-systems of diatomic boron compounds (BF, BO and BH), Nature (London), 1949, 163, 996. [all data]

Chretien, 1950
Chretien, M., Das Bandenspektrum des Bormonofluorids (BF) im Schumanngebiet, Helv. Phys. Acta, 1950, 23, 259. [all data]

Strong and Knauss, 1936
Strong, H.M.; Knauss, H.P., The band spectrum of boron fluoride, Phys. Rev., 1936, 49, 740. [all data]

Barrow, Premaswarup, et al., 1958
Barrow, R.F.; Premaswarup, D.; Winternitz, J.; Zeeman, P.B., Rotational analysis of bands of the c3«SIGMA», b3«SIGMA»-a3«PI» system of boron monofluoride, BF, Proc. Phys. Soc. London, 1958, 71, 61. [all data]

Krishnamachari and Singh, 1965
Krishnamachari, S.L.N.G.; Singh, M., Identification of the 1-0 and 1-2 bands of the c3«SIGMA»+ --> a3«PI» system of BF, Curr. Sci., 1965, 34, 23, 655-656. [all data]

Dull, 1935
Dull, R.B., Note on the spectrum of boron fluoride, Phys. Rev., 1935, 47, 458. [all data]

Dodsworth and Barrow, 1955
Dodsworth, P.G.; Barrow, R.F., The triplet band systems of aluminium monofluoride, Proc. Phys. Soc. London Sect. A, 1955, 68, 824. [all data]

Onaka, 1957
Onaka, R., Study of the A1«PI» --> X1«SIGMA»+ bands of the B11F with a vaccum echelle spectrograph, J. Chem. Phys., 1957, 27, 374. [all data]

Lebreton, Ferran, et al., 1975
Lebreton, J.; Ferran, J.; Marsigny, L., The Cameron system of boron monofluoride, BF, J. Phys. B:, 1975, 8, 465. [all data]

Lovas and Johnson, 1971
Lovas, F.J.; Johnson, D.R., Microwave spectrum of BF, J. Chem. Phys., 1971, 55, 41. [all data]

Lefebvre-Brion and Moser, 1965
Lefebvre-Brion, H.; Moser, C.M., Calculation of Rydberg levels in NO and BF, J. Mol. Spectrosc., 1965, 15, 211. [all data]

Pathak and Maheshwari, 1967
Pathak, A.N.; Maheshwari, R.C., Franck-Condon factors & r-centroids for (b3«SIGMA»+ --> a3«PI») system of boron monofluoride molecule, Indian J. Pure Appl. Phys., 1967, 5, 138. [all data]

Hesser and Dressler, 1966
Hesser, J.E.; Dressler, K., Radiative lifetimes of ultraviolet molecular transitions, J. Chem. Phys., 1966, 45, 3149. [all data]

Hesser, 1968
Hesser, J.E., Absolute Transition Probabilities in Ultraviolet Molecular Spectra, J. Chem. Phys., 1968, 48, 6, 2518, https://doi.org/10.1063/1.1669477 . [all data]

Wentink and Spindler, 1970
Wentink, T., Jr.; Spindler, R.J., Jr., Franck-Condon Factors and r-centroids for No+, CP, SiF, BF, BCl, and BBr, J. Quant. Spectrosc. Radiat. Transfer, 1970, 10, 609. [all data]

Hildenbrand and Murad, 1965
Hildenbrand, D.L.; Murad, E., Dissociation energy of boron monofluoride from mass-spectrometric studies, J. Chem. Phys., 1965, 43, 1400. [all data]

Murad, Hildenbrand, et al., 1966
Murad, E.; Hildenbrand, D.L.; Main, R.P., Dissociation energies of group IIIA monofluorides-the possibility of potential maxima in their excited H states,, J. Chem. Phys., 1966, 45, 263. [all data]

Barrow, 1960
Barrow, R.F., Dissociation energies of the gaseous monohalides of boron, aluminium, gallium, indium, and thallium, Trans. Faraday Soc., 1960, 56, 952. [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]

Nesbet, 1964
Nesbet, R.K., Electronic structure of N2, CO, and BF, J. Chem. Phys., 1964, 40, 12, 3619-3633. [all data]

Huo, 1965
Huo, W.M., Electronic structure of CO and BF, J. Chem. Phys., 1965, 43, 624. [all data]

Hegstrom and Lipscomb, 1966
Hegstrom, R.A.; Lipscomb, W.N., Magnetic properties of the BH molecule, J. Chem. Phys., 1966, 45, 7, 2378-2383. [all data]


Notes

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