The first high-temperature multiaxial ferroelectric host-guest inclusion compound.
Han-Yue ZhangSi-Qi LuXin ChenRen-Gen XiongYuan-Yuan TangPublished in: Chemical communications (Cambridge, England) (2019)
A host-guest inclusion compound, 18-crown-6 oxonium tetrachloride-gallium(iii), was shown to undergo a 4/mmmFmm2-type ferroelectric phase transition with four crystallographically equivalent polarization directions at 337 K. To the best of our knowledge, this is the first host-guest inclusion compound shown to be a high-temperature multiaxial molecular ferroelectric.