ClK+
- Formula: ClK+
- Molecular weight: 74.551
- Information on this page:
- Options:
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 January, 1977
| 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 |  e | exe | eye | Be |  e |  e | De |  e | re | Trans. |  00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D (1/2) | (131500) 1 2 | |||||||||||
| C (3/2,1/2) | 129500 1 2 | |||||||||||
| A (1/2) | 0 1 3 | |||||||||||
| X (3/2,1/2) | 0 1 3 |
Notes
| 1 | From the maxima in the photoelectron spectrum Potts, Williams, et al., 1974, missing citation. The two peaks corresponding to the 2P3/2 and 2P1/2 compoments of normal Cl are not resolved. |
| 2 | Removal of an electron from the metal 3p shell. |
| 3 | Removal of an electron from the halogen 3p shell. |
| 4 | Thermochemical value Brewer and Brackett, 1961, Bulewicz, Phillips, et al., 1961; the analysis of the fluctuation bands gave D00 =
4.39 eV Levi, 1934 (and " = 280 Levi, 1934) according to Levi, 1934, or D00  4.66 eV Barrow and Caunt, 1953 (and " =
305 Barrow and Caunt, 1953) according to Barrow and Caunt, 1953. |
| 5 | Adiabatic potential from the photoelectron spectrum of Potts, Williams, et al., 1974, not corrected for thermal population of ground state vibrational levels; the band maximum (vertical potential) is at 8.92 eV. |
| 6 | UV absorption cross sections Davidovits and Brodhead, 1967. In the electron energy loss spectrum Geiger and Pfeiffer, 1968, there are peaks at 42000, 53000, and 68000 cm-1. |
| 7 | See CsBr note d. From the emission data Kaufmann, Kinsey, et al., 1974, have derived a tentative potential energy curve for the upper state (see KBr note d); D'e ~450 cm-1. |
| 8 | From the IR spectrum. The Dunham theory applied to the microwave results gives
e = 279.80, exe = 1.167. |
| 9 | IR study of matrix isolated KCl Ismail, Hauge, et al., 1975. |
| 10 |  el[D] = 10.2391 + 0.05966(v+1/2) + 0.00019(v+1/2)2 missing citation, Hebert, Lovas, et al., 1968; nuclear
electric quadrupole and spin-rotation coupling constants missing citation. |
| 11 | From D00(KCl) + I.P.(K) - I.P.(KCl) Potts, Williams, et al., 1974, give 0.19 eV. |
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.
Potts, Williams, et al., 1974
Potts, A.W.; Williams, T.A.; Price, W.C.,
Photoelectron spectra and electronic structure of diatomic alkali halides,
Proc. Roy. Soc. London A, 1974, 341, 147. [all data]
Brewer and Brackett, 1961
Brewer, L.; Brackett, E.,
The dissociation energies of gaseous alkali halides,
Chem. Rev., 1961, 61, 425. [all data]
Bulewicz, Phillips, et al., 1961
Bulewicz, E.M.; Phillips, L.F.; Sugden, T.M.,
Determination of dissociation constants and heats of formation of simple molecules by flame photometry. Part 8. Stabilities of the gaseous diatomic halides of certain metals,
Trans. Faraday Soc., 1961, 57, 921. [all data]
Levi, 1934
Levi,
Dissertation, Berlin, 1934, 0. [all data]
Barrow and Caunt, 1953
Barrow, R.F.; Caunt, A.D.,
The ultra-violet absorption spectra of some gaseous alkali-metal halides and the dissociation energy of fluorine,
Proc. R. Soc. London A, 1953, 219, 120. [all data]
Davidovits and Brodhead, 1967
Davidovits, P.; Brodhead, D.C.,
Ultraviolet absorption cross sections for the alkali halide vapors,
J. Chem. Phys., 1967, 46, 2968. [all data]
Geiger and Pfeiffer, 1968
Geiger, J.; Pfeiffer, H.-C.,
Untersuchung der Anregung innerer Elektronen von Alkalihalogenidmolekulen im Energieverlustspektrum von 25 keV-Elektronen,
Z. Phys., 1968, 208, 105. [all data]
Kaufmann, Kinsey, et al., 1974
Kaufmann, K.J.; Kinsey, J.L.; Palmer, H.B.; Tewarson, A.,
Chemiluminescent emission spectra and possible upper-state potentials of KCl and KBr,
J. Chem. Phys., 1974, 61, 1865. [all data]
Ismail, Hauge, et al., 1975
Ismail, Z.K.; Hauge, R.H.; Margrave, J.L.,
Infrared studies of matrix isolated sodium and potassium chloride and cyanide dimers,
J. Mol. Spectrosc., 1975, 54, 402. [all data]
Hebert, Lovas, et al., 1968
Hebert, A.J.; Lovas, F.J.; Melendres, C.A.; Hollowell, C.D.; Story, T.L., Jr.; Street, K., Jr.,
Dipole moments of some alkali halide molecules by the molecular beam electric resonance method,
J. Chem. Phys., 1968, 48, 2824. [all data]
Notes
Go To: Top, Constants of diatomic molecules, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.