Thermochromic Phase Transition in [NH2(C2H5)2]2CuCl4 Crystals |
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| Authors: | V. B. Kapustyanyk Yu. M. Korchak |
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| Affiliation: | (1) I. Franko L'vov National University, 8 Kirill and Mefodii Str., L'vov, 79005, Ukraine |
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| Abstract: | The absorption spectra of [NH2(C2H5)2]2CuCl4 crystals in the visible spectral region in the vicinity of the thermochromic phase transition at T1 = 311 K are investigated. It is shown that in these crystalline compounds the phenomenon of thermochromism is primarily associated with the change of the plane-quadratic geometry of the coordination environment of Cu2+ to the tetrahedral form. The influence of ionizing irradiation on the phase-transition temperature and on the thermochromic properties of this crystal is studied. |
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| Keywords: | absorption spectrum diethylamine tetrachlorocuprate thermochromism coordination environment ionizing radiation |
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