Optical Absorption of MnI2
- 1 August 1975
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 70 (2) , 517-524
- https://doi.org/10.1002/pssb.2220700210
Abstract
The absorption spectra of single crystals of MnI2 in the region 10000 to 30000 cm−1 are reported. At low temperature, 5 K, several of the observed absorption bands show well‐resolved vibronic fine structure. The absorption bands are assigned to electronic transitions of the d electrons of the manganese ion. From the spectra the values of the ligand field splitting 10Dq = 6400 cm−1 and the Racah parameters B = 640 cm−1, C = 3136 cm−1 are calculated. The results are compared with data for MnCl2 and MnBr2, and are discussed in terms of the covalency in the manganese halides.Keywords
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