有機結晶の相転移 [in Japanese] Phase Transition of Organic Crystals [in Japanese]
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Studies of phase transitions of organic crystals are briefly introduced with examples taken from our recent works utilizing structure analysis of single crystals, temperature dependent powder diffraction and calorimetry. The first example is the crystals of <I>N</I>, <I>N</I>'-dialkyl-1, 4-diazoniabicyclo [2.2.2] octane dibromides which exhibit the first-order phase transition and showed the halide anion conductivity in the high temperature phase. The second examples are the phase transformations between the polymorphic crystals of the <I>N</I>-picrylaniline derivatives. The dynamic behavior of molecules during the phase transformations is discussed.
X-RAYS 37(1), 69-75, 1995-02-28
The Crystallographic Society of Japan