New Organic Ferroelectrics: Cocrystal of 5,5′-Dimethyl-2,2′-bipyridine and Bromanilic Acid

Cocrystal 55DMBP–H2ba was synthesized and characterized. The crystal structure is isostructural to cocrystal 55DMBP–H2ia with iodanilic acid. The heat capacity, dielectric permittivity, and polarization–electric field hysteresis showed that the 55DMBP–H2ba undergoes a paraelectric–ferroelectic phase...

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Veröffentlicht in:Chemistry letters 2012, Vol.41 (1), p.119-121
Hauptverfasser: Yamamura, Yasuhisa, Saito, Erika, Saitoh, Hideki, Hoshino, Norie, Saito, Kazuya
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container_title Chemistry letters
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creator Yamamura, Yasuhisa
Saito, Erika
Saitoh, Hideki
Hoshino, Norie
Saito, Kazuya
description Cocrystal 55DMBP–H2ba was synthesized and characterized. The crystal structure is isostructural to cocrystal 55DMBP–H2ia with iodanilic acid. The heat capacity, dielectric permittivity, and polarization–electric field hysteresis showed that the 55DMBP–H2ba undergoes a paraelectric–ferroelectic phase transition at 253 K on cooling. The transition mechanism is discussed through the analysis of isotropic temperature factors of atoms.
doi_str_mv 10.1246/cl.2012.119
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source Oxford University Press Journals All Titles (1996-Current)
subjects Crystal structure
Dielectric constant
Dielectrics
Ferroelectric materials
Heat capacity
Hysteresis
Permittivity
Polarization
title New Organic Ferroelectrics: Cocrystal of 5,5′-Dimethyl-2,2′-bipyridine and Bromanilic Acid
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