Molecular motion, dielectric response, and phase transition of charge-transfer crystals: acquired dynamic and dielectric properties of polar molecules in crystals

Journal of the American Chemical Society
Jun HaradaTamotsu Inabe

Abstract

Molecules in crystals often suffer from severe limitations on their dynamic processes, especially on those involving large structural changes. Crystalline compounds, therefore, usually fail to realize their potential as dielectric materials even when they have large dipole moments. To enable polar molecules to undergo dynamic processes and to provide their crystals with dielectric properties, weakly bound charge-transfer (CT) complex crystals have been exploited as a molecular architecture where the constituent polar molecules have some freedom of dynamic processes, which contribute to the dielectric properties of the crystals. Several CT crystals of polar tetrabromophthalic anhydride (TBPA) molecules were prepared using TBPA as an electron acceptor and aromatic hydrocarbons, such as coronene and perylene, as electron donors. The crystal structures and dielectric properties of the CT crystals as well as the single-component crystal of TBPA were investigated at various temperatures. Molecular reorientation of TBPA molecules did not occur in the single-component crystal, and the crystal did not show a dielectric response due to orientational polarization. We have found that the CT crystal formation provides a simple and versatile...Continue Reading

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Citations

Sep 24, 2015·Journal of the American Chemical Society·Jun-ichi IchikawaTomoyuki Akutagawa
Dec 20, 2016·Journal of the American Chemical Society·Luca CatalanoMiguel A Garcia-Garibay
Jul 22, 2016·Physical Chemistry Chemical Physics : PCCP·Imanol de PedroJesús Rodríguez Fernández
Oct 26, 2016·Chemical Communications : Chem Comm·Abraham Colin-MolinaBraulio Rodríguez-Molina
Jul 25, 2018·Advanced Materials·Xiaotao ZhangWenping Hu
Aug 11, 2018·Chemistry : a European Journal·Aaron D FinkeGeorg Gescheidt
Jul 11, 2019·Chemical Communications : Chem Comm·Wei YuanXiao-Ming Chen
Jul 20, 2019·Advanced Materials·Lingjie SunWenping Hu
Apr 19, 2020·Angewandte Chemie·Si-Qi LuRen-Gen Xiong
Jan 20, 2016·Chemistry, an Asian Journal·Atsushi FunadaTomoyuki Akutagawa
Jun 14, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yukihiro YoshidaGunzi Saito
Dec 15, 2017·Physical Chemistry Chemical Physics : PCCP·Lingjie SunWenping Hu
Jan 28, 2021·The Journal of Organic Chemistry·Taro TsuchiyaWataru Setaka
Jun 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Sergey V BaykovNadezhda A Bokach
Jul 12, 2019·The Journal of Physical Chemistry Letters·Zhi-Xu ZhangDa-Wei Fu
Dec 31, 2020·Journal of the American Chemical Society·Rohit BhowalDeepak Chopra
Nov 4, 2021·Journal of the American Chemical Society·Lingjie SunWenping Hu

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