Gallium monoiodide
- Formula: GaI
- Molecular weight: 196.627
- CAS Registry Number: 15605-68-2
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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, 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C 1Π 1 | C ← X | |||||||||||
| ↳Miescher and Wehrli, 1933 | ||||||||||||
| B 3Π1 | 25900.6 | 185.0 HQ | 2.7 | B ↔ X 2 | 25884.3 HQ | |||||||
| ↳missing citation | ||||||||||||
| A 3Π0+ | 25571.0 | 193.2 H | 2.4 | A ↔ X 2 | 25559.0 H | |||||||
| ↳missing citation | ||||||||||||
| X 1Σ+ | 0 | 216.6 HQ | 0.5 | 0.0569347 | 0.000189 | 1.57E-8 | 2.57467 3 | |||||
| ↳Barrett and Mandel, 1958 | ||||||||||||
Notes
| 1 | Continuous absorption with maximum at 32600 cm-1. |
| 2 | Both directions of shading occur, even in one and the same band. |
| 3 | Microwave sp. 5 |
| 4 | Extrapolation of vibrational intervals in A and B; see the discussion in Barrow, 1960. |
| 5 | eqQ(69Ga)= -66 MHz; eqQ(127I)= -549 MHz. |
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.
Miescher and Wehrli, 1933
Miescher, E.; Wehrli, M.,
Die spektren der galliumhalogenide,
Helv. Phys. Acta, 1933, 6, 458. [all data]
Barrett and Mandel, 1958
Barrett, A.H.; Mandel, M.,
Microwave spectra of the Tl, In, and Ga monohalides,
Phys. Rev., 1958, 109, 1572. [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]
Notes
Go To: Top, Constants of diatomic molecules, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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