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Ion polarisation-assisted hydrogen-bonded ferroelectrics in liquid crystalline domains
Chemical Science ( IF 7.6 ) Pub Date : 2021-09-28 , DOI: 10.1039/d1sc03301h Guohao Yuan 1, 2 , Yuko Kimura 1 , Takayuki Kobayashi 1 , Takashi Takeda 1, 2 , Norihisa Hoshino 1, 2 , Tomoyuki Akutagawa 1, 2, 3
Chemical Science ( IF 7.6 ) Pub Date : 2021-09-28 , DOI: 10.1039/d1sc03301h Guohao Yuan 1, 2 , Yuko Kimura 1 , Takayuki Kobayashi 1 , Takashi Takeda 1, 2 , Norihisa Hoshino 1, 2 , Tomoyuki Akutagawa 1, 2, 3
Affiliation
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An alkylamide-substituted (−NHCOC10H21) hydrogen-bonded dibenzo[18]crown-6 derivative (1) was prepared to stabilise the ionic channel structure in a discotic hexagonal columnar (Colh) liquid crystal. The introduction of simple M+X− salts such as Na+PF6− and K+I− into the ionic channel of 1 enhanced the ionic conductivity of the Colh phase of the M+·(1)·X− salts, with the highest ionic conductivity reaching ∼10−6 S cm−1 for K+·(1)·I− and Na+·(1)·PF6− at 460 K, which was approximately 5 orders of magnitude higher than that of 1. The introduction of non-ferroelectric 1 into the ferroelectric N,N′,N′′-tri(tetradecyl)-1,3,5-benzenetricarboxamide (3BC) elicited a ferroelectric response from the mixed Colh phase of (3BC)x(1)1−x with x = 0.9 and 0.8. The further doping of M+X− into the ferroelectric Colh phase of (3BC)0.9(1)0.1 enhanced the ferroelectric polarisation assisted by ion displacement in the half-filled ionic channel for the vacant dibenzo[18]crown-6 of (3BC)0.9[(M+)0.5·(1)·(X−)0.5]0.1.
中文翻译：
液晶域中的离子极化辅助氢键铁电体
制备了烷基酰胺取代的 (-NHCOC 10 H 21 ) 氢键二苯并[18] 冠-6 衍生物 ( 1 ) 以稳定盘状六方柱状 (Col h ) 液晶中的离子通道结构。将简单的 M + X -盐，例如 Na + PF 6 -和 K + I -引入1的离子通道，增强了 M + ·( 1 )·X -盐的 Col h相的离子电导率，具有最高离子电导率达到~10 -6S cm -1对于 K + ·( 1 )·I -和 Na + ·( 1 )·PF 6 -在 460 K，比1高约 5 个数量级。引进的非铁电1到铁电Ñ，Ñ '，Ñ '' -三（十四烷基）-1,3,5-苯三甲酰胺（3BC）引起从混合胶原的强电介质响应ħ的相位（3BC）X（1 ) 1− x与x= 0.9 和 0.8。M + X -进一步掺杂到( 3BC ) 0.9 ( 1 ) 0.1的铁电 Col h相中增强了铁电极化，由半填充离子通道中的离子置换辅助，用于空的二苯并[18]冠-6 ( 3BC ) 0.9 [(M + ) 0.5 ·( 1 )·(X - ) 0.5 ] 0.1。
更新日期：2021-09-28
中文翻译：
液晶域中的离子极化辅助氢键铁电体
制备了烷基酰胺取代的 (-NHCOC 10 H 21 ) 氢键二苯并[18] 冠-6 衍生物 ( 1 ) 以稳定盘状六方柱状 (Col h ) 液晶中的离子通道结构。将简单的 M + X -盐，例如 Na + PF 6 -和 K + I -引入1的离子通道，增强了 M + ·( 1 )·X -盐的 Col h相的离子电导率，具有最高离子电导率达到~10 -6S cm -1对于 K + ·( 1 )·I -和 Na + ·( 1 )·PF 6 -在 460 K，比1高约 5 个数量级。引进的非铁电1到铁电Ñ，Ñ '，Ñ '' -三（十四烷基）-1,3,5-苯三甲酰胺（3BC）引起从混合胶原的强电介质响应ħ的相位（3BC）X（1 ) 1− x与x= 0.9 和 0.8。M + X -进一步掺杂到( 3BC ) 0.9 ( 1 ) 0.1的铁电 Col h相中增强了铁电极化，由半填充离子通道中的离子置换辅助，用于空的二苯并[18]冠-6 ( 3BC ) 0.9 [(M + ) 0.5 ·( 1 )·(X - ) 0.5 ] 0.1。
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