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Crystal growth, spectroscopic and crystal field studies of [N(CH3)4]2MnCl4 and [N(CH3)4]2CoCl4 single crystals in the paraelectric phase |
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| Authors: | A. El-Korashy |
| Affiliation: | a Dr Sorour Res Lab, Physics Department, Faculty of Science, Assiut University, Assiut, Egypt b Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4, Takano Nishihiraki-cho, Sakyo-ku, Kyoto 606-8103, Japan c School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan |
| Abstract: | Single crystals [N(CH3)4]2MnCl4 and [N(CH3)4]2CoCl4 were grown by the slow evaporation technique from the super-saturated solutions. The samples obtained were undergone the X-ray and spectroscopic studies. Absorption spectra in the paraelectric phase at T=303 K have been recorded using the Shimadzu 160A double beam automatic scanning spectrophotometers. On the basis of the exchange charge model and Racah theory the crystal field parameters and Racah parameters have been calculated; all absorption bands for both crystals were given an assignment. |
| Keywords: | 71.70.Ch 71.70.Ej 75.50.Ee |
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