Bis(imidazolium) L-tartrate: a hydrogen-bonded displacive-type molecular ferroelectric material

Zhihua Sun; Tianliang Chen; Junhua Luo; Maochun Hong

doi:10.1002/anie.201200407

Bis(imidazolium) L-tartrate: a hydrogen-bonded displacive-type molecular ferroelectric material

Angew Chem Int Ed Engl. 2012 Apr 16;51(16):3871-6. doi: 10.1002/anie.201200407. Epub 2012 Mar 13.

Authors

Zhihua Sun¹, Tianliang Chen, Junhua Luo, Maochun Hong

Affiliation

¹ Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, PR China.

PMID: 22415962
DOI: 10.1002/anie.201200407

Abstract

A hydrogen-bonded ionic cocrystal with imidazole as molecular rotator and L-tartaric acid as homochiral component is reported as a displacive-type ferroelectric material. It undergoes a paraelectric-ferroelectric phase transition at 252 K with exceptional dielectric responses triggered by atomic displacements.