The absorption spectrum of CoCl2 molecules isolated in a nitrogen matrix and the fluorescence spectrum of CoCl2 molecules isolated in an argon matrix have been measured at liquid helium temperatures in the range 4000–50 000 cm−1. The absorption and fluorescence spectra in the 4000–25 000 cm−1 region were not mutually observable in the same host. Interpretations of the spectra are given, based on axial ligand field calculations for a 3d7 configuration including spin-orbit coupling interactions.
GruenD. M. and DeKockC. W., J. Chem. Phys.43, 3395 (1965).
2.
DeKockC. W. and GruenD. M., J. Chem. Phys.44, 4387 (1966).
3.
DeKockC. W. and GruenD. M., J. Chem. Phys.49, 4521 (1968).
4.
HougenJ. T.LeroiG. E. and JamesT. C., J. Chem. Phys.34, 1670 (1961).
5.
MilliganD. E.JacoxM. E., and McKinlyJ. D., J. Chem. Phys.43, 902 (1965).
6.
GruenD. M.CliftonJ. R. and DeKockC. W., J. Chem. Phys.48, 1394 (1968).
7.
AllenJ. W., Proc. Phys. Soc.80, 1385 (1962).
8.
RalphJ. E. and TownsendM. G., J. Chem. Phys.48, 149 (1968).
9.
BüchlerA.StaufferJ. L., and KlempererW., J. Chem. Phys.40, 3471 (1964).
10.
WhartonL.BergR. A., and KlempererW., J. Chem. Phys.39, 2023 (1963).
11.
LeroiG. E.JamesT. C.HougenJ. T., and KlempererW., J. Chem. Phys.36, 2879 (1962).
12.
ThompsonK. E., thesis, Case Western Reserve University, Cleveland, Ohio, 1968.
13.
CliftonJ. R.GruenD. M.RonA., J. Chem. Phys. (to be published).
14.
SchäferH.BayerL.BreilG.EtzelK., and KrehlK., A. Anorg. Allgem. Chem.278, 300 (1955).
15.
MillerA. R., J. Chem. Phys.42, 3734 (1965).
16.
SchoonmakerR. C.FriedmanA. H. and PorterR. F., J. Chem. Phys.31, 1586 (1959).
17.
PerumareddiJ. R., J. Phys. Chem.71, 3155 (1967).
18.
DeKockC. W. and GruenD. M., J. Chem. Phys.46, 1096 (1967).
19.
BergR. A. and SinanŏgluO., J. Chem. Phys.32, 1082 (1960).
20.
TheissingH. H. and CaplanP. J., Spectroscopic Calculations for a Multielectron Ion (Wiley—Interscience, Inc., New York, 1966), Chap. 10.
21.
CondonE. U. and ShortlyG. H., The Theory of Atomic Spectra (Cambridge University Press, Cambridge, England, 1964).
22.
RacahG., Phys. Rev.63, 367 (1943).
23.
BallhausenC. J., Introduction to Ligand Field Theory (McGraw—Hill Book Co., New York, 1962), p. 24.
24.
JessonJ. P., J. Chem. Phys.48, 161 (1968): Document No. 9635 (ADI) Auxiliary Publication Project, Photoduplication Service, Library of Congress, Washington, D. C. 20025. Spin-orbit and crystal field matrix elements are given in this document.
25.
WeakliemH. A., J. Chem. Phys.36, 2117 (1962).
26.
FergusonJ., J. Chem. Phys.39, 116 (1963).
27.
LiehrA. D. and BallhausenC. J., Ann. Phys. (New York)6, 134 (1959).
28.
MooreC. E., Natl. Bur. Std. (U. S.) Circ.No. 467, 2, 85 (1952).
29.
BallhausenC. J. and LiehrA. D., J. Mol. Spectry.2, 342 (1958); Erratum, 4, 190 (1960).
30.
LiehrA. D., J. Phys. Chem.67, 1314 (1963).
31.
AndersonA. and LeroiG. E., J. Chem. Phys.45, 4359 (1966).
32.
PryceM. H. in Phonons in Perfect Lattices and in Lattices with Point Imperfections, StevensonR. W., Ed. (Oliver and Boyd, London, 1966), Chap. 15.
33.
BronW. E. and WagnerW., Phys. Rev.139, A233 (1965).
34.
LohrL. L.Jr., Inorg. Chem.7, 2093 (1968).
35.
TanakaY.OgawaM., and JursaA. S., J. Chem. Phys.40, 3690 (1964).