Boron monochloride
- Formula: BCl
- Molecular weight: 46.264
- IUPAC Standard InChI: InChI=1S/BCl/c1-2
- IUPAC Standard InChIKey: GKCOJTRGYAUVSR-UHFFFAOYSA-N
- CAS Registry Number: 20583-55-5
- Chemical structure:
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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 March, 1976
| Symbol | Meaning |
|---|---|
| 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) |
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A 1Π | 36750.92 | 849.04 HQ | 11.37 1 | -0.100 | 0.7054 2 | 0.00820 3 | -0.00050 | 1.60E-06 4 | 0.00000027 | 1.6894 | A ↔ X 5 VR | 36754.30 HQ |
| ↳missing citation | ||||||||||||
| a 3Π1 | 20200 | 911 | 5.7 | 0.6986 | 0.0047 | 1.698 | a → X V | 20235.70 Z | ||||
| ↳Lebreton, Marsigny, et al., 1971 | ||||||||||||
| X 1Σ+ | 0 | 839.12 HQ | 5.11 | 0.6838 2 | 0.00646 | 0.00000172 | 0.00000007 | 1.7159 | ||||
Notes
| 1 | ωeze = -0.0271. |
| 2 | RKR potential curve Gelebart and Johannin-Gilles, 1968. |
| 3 | missing note |
| 4 | Extrapolation of A 1Π; see Barrow, 1960. |
| 5 | Radiative lifetime τ(v=0,1,2)= 19.1 ns Hesser, 1968; f00(A←X) = 0.11. |
| 6 | βe= 0.7E-7 |
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.
Lebreton, Marsigny, et al., 1971
Lebreton, J.; Marsigny, L.; Ferran, J.,
Caracterisation d'une nouvelle transition de la molecule 11B35Cl (systeme 3Π1→X1Σ+),
C.R. Acad. Sci. Paris, Ser. C, 1971, 272, 1094. [all data]
Gelebart and Johannin-Gilles, 1968
Gelebart, F.; Johannin-Gilles, A.,
Les courbes d'energie potentielle des etats 1Π et 1Σ+ de la molecule BCl,
C.R. Acad. Sci. Paris, Ser. B, 1968, 267, 408. [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]
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]
Notes
Go To: Top, Constants of diatomic molecules, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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