Calcium monoiodide
- Formula: CaI
- Molecular weight: 166.982
- CAS Registry Number: 15923-87-2
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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 July, 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E (2Δ) | 36715.7 | 287.2 HQ | 0.80 | E → A V | 21092.8 HQ | |||||||
| ↳Kamalasanan and Shah, 1975 | ||||||||||||
| 36713.3 | 287.2 HQ | 0.80 | E → A V | 21149.3 HQ | ||||||||
| ↳Kamalasanan and Shah, 1975 | ||||||||||||
| D (2Σ) | 31011.4 | 256.0 H | 0.8 | D ↔ X V | 31019.9 H | |||||||
| ↳Walters and Barratt, 1928; Khanna and Dubey, 1973 | ||||||||||||
| C 2Π | 23743.96 | 224.72 H | 0.530 | -0.083 | C ↔ X R | 23736.98 H | ||||||
| ↳Walters and Barratt, 1928; Mesnage, 1939; missing citation; missing citation | ||||||||||||
| 23315.51 | 229.75 H | 0.633 | C ↔ X R | 23311.03 H | ||||||||
| ↳Walters and Barratt, 1928; Mesnage, 1939; missing citation; missing citation | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
| B 2Σ+ | 15715.2 | 239.95 H | 0.62 | B ↔ X 1 V | 15715.8 2 | |||||||
| ↳Walters and Barratt, 1928; Hedfeld, 1931; missing citation; Darji and Vaidya, 1973 | ||||||||||||
| B ↔ X 1 V | 15712.4 2 H | |||||||||||
| ↳Walters and Barratt, 1928; Hedfeld, 1931; missing citation; Darji and Vaidya, 1973 | ||||||||||||
| A 2Π | 15645.6 | 241.69 H | 0.83 | A ↔ X V | 15647.2 3 H | |||||||
| ↳Walters and Barratt, 1928; Hedfeld, 1931; missing citation; Darji and Vaidya, 1973 | ||||||||||||
| 15586.2 | 242.65 H | 0.62 | A ↔ X V | 15588.4 3 H | ||||||||
| ↳Walters and Barratt, 1928; Hedfeld, 1931; missing citation; Darji and Vaidya, 1973 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
| X 2Σ+ | 0 | 238.70 H | 0.628 | |||||||||
Notes
| 1 | Radiative lifetime τ(v=4) = 50.9 ns Dagdigian, Cruse, et al., 1974. |
| 2 | Double heads on account of large spin doubling in B 2Σ. |
| 3 | Radiative lifetime τ(v=3,5) = 41.7 ns Dagdigian, Cruse, et al., 1974. |
| 4 | Lower bound from a crossed molecular beam experiment Mims, Lin, et al., 1972; in agreement with the theoretical lower limit of Krasnov and Karaseva, 1965. |
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.
Kamalasanan and Shah, 1975
Kamalasanan, M.N.; Shah, S.G.,
New band system of CaI molecule in the region 4600-4950 Å,
Curr. Sci., 1975, 44, 805. [all data]
Walters and Barratt, 1928
Walters, O.H.; Barratt, S.,
The alkaline earth halide spectra and their origin,
Proc. R. Soc. London A, 1928, 118, 120. [all data]
Khanna and Dubey, 1973
Khanna, L.K.; Dubey, V.S.,
Emission spectrum of calcium mono-iodide,
Indian J. Pure Appl. Phys., 1973, 11, 286. [all data]
Mesnage, 1939
Mesnage, P.,
Recherches sur les decharges de haute frequence et leur application a la spectroscopie moleculaire,
Ann. Phys. (Paris), 1939, 12, 5. [all data]
Hedfeld, 1931
Hedfeld, K.,
Die bandenspektren der erdalkalihalogene,
Z. Phys., 1931, 68, 610. [all data]
Darji and Vaidya, 1973
Darji, A.B.; Vaidya, S.P.,
Band spectrum of CaI molecule in the region 6610-6175 Å (A and B systems),
Indian J. Pure Appl. Phys., 1973, 11, 923. [all data]
Dagdigian, Cruse, et al., 1974
Dagdigian, P.J.; Cruse, H.W.; Zare, R.N.,
Radiative lifetimes of the alkaline earth monohalides,
J. Chem. Phys., 1974, 60, 2330. [all data]
Mims, Lin, et al., 1972
Mims, C.A.; Lin, S.-M.; Herm, R.R.,
Crossed beam collision mechanics: reactions of Ca, Sr, and Ba with HI and limits on D0° for CaI, SrI, and BaI,
J. Chem. Phys., 1972, 57, 3099. [all data]
Krasnov and Karaseva, 1965
Krasnov, K.S.; Karaseva, N.V.,
Reevaluation of the spectroscopic dissociation energies of subhalides of the IIa group,
Opt. Spectrosc. Engl. Transl., 1965, 19, 14, In original 30. [all data]
Notes
Go To: Top, Constants of diatomic molecules, References
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