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CdI


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 November, 1974

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 (114)Cd127I
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
E (2Sigma+) (41912) 108.5 1 H 1.0        E rarrow X R (41877) 1 H
Wieland, 1929; Howell, 1944; Ramasastry and Rao, 1946
D (2Pi3/2) 29531.7 196.8 2 H 0.85        D lrarrow X V 29540.7 H
Wieland, 1929; Oeser, 1935; missing citation; Wieland and Herczog, 1946; missing citation
C (2Pi1/2) 28230.5 188.2 3 H 0.84        C lrarrow X (V) 28235.2 H
Howell, 1944; missing citation; missing citation; missing citation
B (2Sigma) 4           B rarrow X R 
Wieland, 1929; Oeser, 1935; Subbaraya, Rao, et al., 1937; Wieland, 1948; Patel, Patel, et al., 1968
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X (2Sigma) 0 178.7 5 H 0.76         

Notes

1Vibrational numbering uncertain; compare Howell, 1944 and Ramasastry and Rao, 1946.
2Average of constants obtained by Wieland, 1929 (emission) and Gosavi, Greig, et al., 1971 (absorption).
3Average of constants obtained by Patel, Patel, et al., 1967 (emission) and Gosavi, Greig, et al., 1971 (absorption).
4Large number of emission bands from 15000 to 28000 cm-1. 7
5Average of constants obtained by Wieland, 1929, Ramasastry and Rao, 1946, Patel, Patel, et al., 1967, Gosavi, Greig, et al., 1971.
6Na D line chemiluminescence in Na/CdI2 flames [ Horn, Polanyi, et al., 1932, revised].
7It was suggested by Patel, Patel, et al., 1968 that these bands form two separate systems and that for the system at shorter wavelengths nue= 23868.4, omega'e = 74.0, omega'ex'e = 2.0.

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.

Wieland, 1929
Wieland, K., Bandenspektren der quecksilber-, cadmium- und zinkhalogenide, Helv. Phys. Acta, 1929, 2, 46. [all data]

Howell, 1944
Howell, H.G., The ultra-violet spectra and electron configuration of HgF and related halide molecules, Proc. R. Soc. London A, 1944, 182, 95. [all data]

Ramasastry and Rao, 1946
Ramasastry, C.; Rao, K.R., Ultraviolet bands of cadmium iodide, Indian J. Phys., 1946, 20, 100. [all data]

Oeser, 1935
Oeser, E., Absorptions- und Fluoreszenzuntersuchungen an dampfformigen Cadmium und Zinkhalogeniden, Z. Phys., 1935, 47, 699. [all data]

Wieland and Herczog, 1946
Wieland, K.; Herczog, A., 220. Thermische dissoziation von cadmiumjodid, Helv. Chim. Acta, 1946, 29, 1702. [all data]

Subbaraya, Rao, et al., 1937
Subbaraya, T.S.; Rao, N.A.; Rao, B.N., On the band spectrum of cadmium iodide, Proc. Indian Acad. Sci. Sect. A, 1937, 5, 372. [all data]

Wieland, 1948
Wieland, K., Molekulspektren mit Ionencharakter und ihre Beeinflussung durch Fremdgase in Contribution a l'Etude de la Structure Moleculaire, Desoer, Liege, ed(s)., 1948, 229-238. [all data]

Patel, Patel, et al., 1968
Patel, M.M.; Patel, S.P.; Darji, A.B., Band spectrum of diatomic cadmium iodide in the visible region 4130-4800 A., Indian J. Pure Appl. Phys., 1968, 6, 342. [all data]

Gosavi, Greig, et al., 1971
Gosavi, R.K.; Greig, G.; Young, P.J.; Strausz, O.P., Reactions of metal atoms. IV. The UV spectra of CdBr, CdI, ZnBr, and ZnI, J. Chem. Phys., 1971, 54, 983. [all data]

Patel, Patel, et al., 1967
Patel, M.M.; Patel, S.P.; Darji, A.B., Band spectrum of CdI molecule in the region 3586-3495. A. (C-system), Indian J. Pure Appl. Phys., 1967, 5, 526. [all data]

Horn, Polanyi, et al., 1932
Horn, E.; Polanyi, M.; Sattler, H., Uber die hochverdunnten flammen von natriumdampf mit den cadmiumhalogeniden und zinkchlorid, Z. Phys. Chem. Abt. B, 1932, 17, 220. [all data]


Notes

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