Phase transitions in R2 SnCl6-type crystals (R = NH3 C2H3, NH3C2H5 and N(CH3)4) |
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| Authors: | Naomi Tanba Michio Midorikawa Yoshihiro Ishibashi |
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| Affiliation: |
a Synthetic Crystal Research Laboratory, Faculty of Engineering, Nagoya University, Nagoya, Japan |
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| Abstract: | The thermal dilatation in (NH3 ·CH3) SnCl6, (NH3 · C2H5) SnCl6 and N(CH3)] SnCl6 was measured, and as the results it has turned out that (NH3 6·C2H5) SnCl6 and N(CH3)4]2 SnCl6 undergo the first order transitions at 128 K and 158 K, respectively. The low temperature phases of (NH · C2H5) SnCl6 and N(CH3)4]2 SnC16 are found to be monoclinic and tetragonal, respectively, No phase transition was observed in (NH3 ·CH3)2 SnCl6 down to 77 K. |
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