Molecular Designs for Enhancement of Polarity in Ferroelectric Soft Materials

Ryo Ohtani, Manabu Nakaya, Hitomi Ohmagari, Masaaki Nakamura, Kazuchika Ohta, Leonard F. Lindoy, Shinya Hayami

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Abstract

The racemic oxovanadium(IV) salmmen complexes, [VO((rac)-(4-X-salmmen))] (X=C12C10C5 (1), C16 (2), and C18 (3); salmmen=N,N′-monomethylenebis-salicylideneimine) with "banana shaped" molecular structures were synthesized, and their ferroelectric properties were investigated. These complexes exhibit well-defined hysteresis loops in their viscous phases, moreover, 1 also displays liquid crystal behaviour. We observed a synergetic effect influenced by three structural aspects; the methyl substituents on the ethylene backbone, the banana shaped structure and the square pyramidal metal cores all play an important role in generating the observed ferroelectricity, pointing the way to a useful strategy for the creation of advanced ferroelectric soft materials.

Original languageEnglish
Article number16606
JournalScientific reports
Volume5
DOIs
Publication statusPublished - Nov 16 2015

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Ohtani, R., Nakaya, M., Ohmagari, H., Nakamura, M., Ohta, K., Lindoy, L. F., & Hayami, S. (2015). Molecular Designs for Enhancement of Polarity in Ferroelectric Soft Materials. Scientific reports, 5, [16606]. https://doi.org/10.1038/srep16606