摘要
本研究合成了化合物二乙胺六氯化锡[Et_2NH_2]^+_2[SnCl_6]^(2-)(1)并对其进行了单晶X-射线衍射,DSC以及变温介电性能测试。研究结果表明,化合物1在高于370 K时发生了可逆一级相变,其相变过程与六氯化锡阴离子的各向同性旋转以及二乙胺阳离子的180°翻转运动有关。对应于该相变过程,化合物1可以实现高低介电状态转换,因而有望成为一种新型的高温分子基介电开关材料。
Diethylammonium hexachlorostannate（Ⅳ）[Et2NH_2]^＋2[SnCl6]^（2-）（1） was prepared and characterized by single-crystal X-ray diffraction,elemental analysis,DSC and temperature-dependent dielectric spectroscopy.The results indicated that compound 1 could undergo a reversible first-order phase transition over 370 K.Corresponding to this phase transition,compound 1 was found for the first time to undergo transitions between high and low dielectric states,which indicates a new type of molecule-based material with high-temperature switchable dielectric property.
出处
《井冈山大学学报（自然科学版）》
2015年第6期36-40,共5页
Journal of Jinggangshan University (Natural Science)
基金
supported by National Natural Science Foundation of China(21361012)
Science and Technology Supporting Project of Jiangxi Province(20133ACG70007)
Young Scientist of Jiangxi Province(20144BCB23038)
Education Department of Jiangxi Province(KJLD12034)
Innovation and Entrepreneurship Training Project for College Students of Jinggangshan University
关键词
二乙胺六氯化锡
相变
介电开关
分子基
diethylammonium hexachlorostannate
phase transition
switchable dielectric
molecule-based
