皇冠乙烯的含有化合物是3,4-二二二二 ((甲硫) 胺酸-18-皇冠-6 (1/1) 克拉酸盐
Yao Zhang1, Yan Juan Wang2, Yuan Yuan Tang2
1Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People's Republic of China.
研究人员探索了新的分子铁电,使用二甲硫胺酸 (DMSA) 离子与皇冠含化合物. 这项研究揭示了DMSA.
科学领域:
- 材料科学 材料科学 材料科学
- 晶体学 晶体学是指结晶学.
- 超分子化学 超分子化学
背景情况:
- 基于分子的铁电材料因其性能而受到越来越多的关注.
- 皇冠以太纳入化合物,包括有机,皇冠以太和阳离子,是设计铁电学的关键,因为有序-无序相转换.
- 虽然研究了TFSA-,PF6-和[FeCl4]-等各种离子,但这些化合物中的二甲硫胺酸 (DMSA) 离子仍未得到充分研究.
研究的目的:
- 研究结合DMSA离子的皇冠乙烯含量化合物的结构和潜在铁电性质.
- 通过使用3,4-difluoroanilinium (3,4-DFA),18-crown-6和DMSA合成和表征一种新型化合物.
- 为了比较基于DMSA的化合物的结构特征与其TFSA类似物.
主要方法:
- TFSA的化学合成和转化为DMSA离子.
- 在100K和300K时进行单晶X射线衍射分析.
- 结构分析侧重于结和晶体包装.
主要成果:
- 一种新的化合物[3,4-DFA][18-皇冠-6][DMSA]被成功合成.
- 结晶结构被确定为P21/c空间组中的100 K和300 K.
- 3,4-DFA阳离子与皇冠以太形成N-H...O键.
- 与相关化合物中无序的TFSA离子不同,这个复合体中的DMSA离子表现出有序的,分层的排列.
结论:
- DMSA离子可以有效地被纳入宿主-客冠乙烯含有化合物中.
- DMSA离子的有序性质影响了整体晶体包装,与基于TFSA的类似物不同.
- 这一发现为在分子铁电中探索基于DMSA的材料开辟了道路.
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