当前位置:
X-MOL 学术
›
New J. Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Effect of carbon-skeleton isomerism on the dielectric properties and proton conduction of organic cocrystal compounds assembled from 1,2,4,5-benzenetetracarboxylic acid and piperazine derivatives†
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2019-06-05 00:00:00 , DOI: 10.1039/c9nj01412h
Xiaoqiang Liang 1, 2, 3, 4 , Yixiang Chen 2, 3, 4, 5 , Li Wang 1, 2, 3, 4 , Feng Zhang 4, 6, 7, 8, 9 , Zenglu Fan 2, 3, 4, 5 , Tingting Cao 1, 2, 3, 4 , Yaya Cao 1, 2, 3, 4 , Huifang Zhu 1, 2, 3, 4 , Xinyue He 1, 2, 3, 4 , Bolin Deng 1, 2, 3, 4 , Yazhi You 1, 2, 3, 4 , Yu Dong 1, 2, 3, 4 , Yamei Zhao 1, 2, 3, 4
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2019-06-05 00:00:00 , DOI: 10.1039/c9nj01412h
Xiaoqiang Liang 1, 2, 3, 4 , Yixiang Chen 2, 3, 4, 5 , Li Wang 1, 2, 3, 4 , Feng Zhang 4, 6, 7, 8, 9 , Zenglu Fan 2, 3, 4, 5 , Tingting Cao 1, 2, 3, 4 , Yaya Cao 1, 2, 3, 4 , Huifang Zhu 1, 2, 3, 4 , Xinyue He 1, 2, 3, 4 , Bolin Deng 1, 2, 3, 4 , Yazhi You 1, 2, 3, 4 , Yu Dong 1, 2, 3, 4 , Yamei Zhao 1, 2, 3, 4
Affiliation
![]() |
Multifunctional materials have rapidly attracted increasing attention owing to their novel, unpredictable, and unique properties, and potential applications in sensors, switches and smart materials. However, a lack of deeper understanding of performance optimization and structure–property relationships hampers the investigation of the coupling mechanism and further development of multifunctional materials. In this study, using the intrinsic merits of cocrystal materials and the strategy of molecular design, two isostructural 2D supramolecular cocrystal compounds [(H3betc)(H-Hopip)0.5·(H2O)] [OCC 1, H4betc = 1,2,4,5-benzenetetracarboxylic acid, Hopip = homopiperazine] and [(H3betc)2(H2-Mepip)·(H2O)] [OCC 2, Mepip = 2-methyl-piperazine] were successfully synthesized and further structurally characterized. OCC 1 and OCC 2 show different dielectric responses and proton conductivities due to the alteration of the carbon-skeleton of piperazine derivatives. Interestingly, a higher dielectric response (2480 at 100 Hz) and proton conductivity (3.65 × 10−4 S cm−1 at 298 K and ∼97% RH) is observed in OCC 2, which was better than those of some reported cocrystals, metal–organic framework materials and organic covalent compounds. The mechanism of dielectric response was also clearly elucidated by means of temperature-dependent Raman spectroscopy measurements. More importantly, there is good correlation between macroscopic properties and microscopic structures in OCC 1 and OCC 2. Furthermore, OCC 1 and OCC 2 show high dielectric constants and moderate proton conductivities under ambient conditions, which satisfies the criteria as the dispersed phase of electrorheological fluids. The study will provide valuable insight into investigating structure–property relationships for crystal materials at the atomic level, and also lay the foundation for the study of electrorheological fluids of organic cocrystal compounds.
中文翻译:
碳骨架异构对1,2,4,5-苯四甲酸和哌嗪衍生物组装的有机共晶体化合物介电性能和质子传导的影响†
多功能材料因其新颖,不可预测的独特特性以及在传感器,开关和智能材料中的潜在应用而迅速吸引了越来越多的关注。但是,由于缺乏对性能优化和结构-性能关系的更深入的了解,阻碍了对偶联机理的研究以及多功能材料的进一步开发。本研究利用共晶材料的内在优点和分子设计策略,研究了两种同构的二维超分子共晶化合物[(H 3 betc)(H-Hopip)0.5 ·(H 2 O)] [OCC 1,H 4 betc = 1,2,4,5-苯四甲酸,Hopip =高哌嗪]和[(H 3 betc)2(H 2 -Mepip)·(H 2 O)] [OCC 2,Mepip = 2-甲基-哌嗪]已成功合成并进一步进行了结构表征。由于哌嗪衍生物的碳骨架的变化,OCC 1和OCC 2显示出不同的介电响应和质子电导率。有趣的是,更高的介电响应(在100 Hz下为2480)和质子传导率(3.65×10 -4 S cm -1在OCC 2中观察到在298 K和约97%RH的条件下,它比某些报道的共晶体,金属-有机骨架材料和有机共价化合物更好。还通过依赖于温度的拉曼光谱测量清楚地阐明了介电响应的机制。更重要的是,OCC 1和OCC 2的宏观性质与微观结构之间具有良好的相关性。此外,OCC 1和OCC 2在环境条件下显示出高介电常数和适中的质子电导率,满足作为电流变流体分散相的标准。该研究将为研究原子级晶体材料的结构与性质之间的关系提供有价值的见解,
更新日期:2019-06-05
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
碳骨架异构对1,2,4,5-苯四甲酸和哌嗪衍生物组装的有机共晶体化合物介电性能和质子传导的影响†
多功能材料因其新颖,不可预测的独特特性以及在传感器,开关和智能材料中的潜在应用而迅速吸引了越来越多的关注。但是,由于缺乏对性能优化和结构-性能关系的更深入的了解,阻碍了对偶联机理的研究以及多功能材料的进一步开发。本研究利用共晶材料的内在优点和分子设计策略,研究了两种同构的二维超分子共晶化合物[(H 3 betc)(H-Hopip)0.5 ·(H 2 O)] [OCC 1,H 4 betc = 1,2,4,5-苯四甲酸,Hopip =高哌嗪]和[(H 3 betc)2(H 2 -Mepip)·(H 2 O)] [OCC 2,Mepip = 2-甲基-哌嗪]已成功合成并进一步进行了结构表征。由于哌嗪衍生物的碳骨架的变化,OCC 1和OCC 2显示出不同的介电响应和质子电导率。有趣的是,更高的介电响应(在100 Hz下为2480)和质子传导率(3.65×10 -4 S cm -1在OCC 2中观察到在298 K和约97%RH的条件下,它比某些报道的共晶体,金属-有机骨架材料和有机共价化合物更好。还通过依赖于温度的拉曼光谱测量清楚地阐明了介电响应的机制。更重要的是,OCC 1和OCC 2的宏观性质与微观结构之间具有良好的相关性。此外,OCC 1和OCC 2在环境条件下显示出高介电常数和适中的质子电导率,满足作为电流变流体分散相的标准。该研究将为研究原子级晶体材料的结构与性质之间的关系提供有价值的见解,