Plasticity and Ferroelasticity Transitions of Molecular Complex [(C4H9N2)2][Fe3O(O2CH)9] on Heating and Cooling near Room Temperature

A new molecular ionic complex, [(C4H9N2)(2)][Fe3O-(O2CH)(9)] (1), is constructed by an oxo-centered trinuclear iron anion and a semi-rigid ring-like cation 1,4,5,6-tetrahydropyrimidin-ium, which is generated in situ by reacting formic acid and 1,3-propylenediamine. The molecular motion change of anions and cations produces continuously reversible plasticity and ferroelasticity transition on heating and cooling near room temperature.

Automated summary

This article presents a new molecular ionic complex composed of iron and pyrimidinium ions, which exhibits reversible plasticity and ferroelasticity transition near room temperature.