含二苯并-18-冠-6酰胺型液晶冠醚钾配合物的合成和性质  

Synthesis and Properties of Amide Type Liquid Crystalline Crown Ether Potassium Complexes Containing Dibenzo-18-crown-6 Unit

作　　者：张淑媛[1] 朱路[1] 王志玲[1] 朱鑫[1] 李自法[2] 

机构地区：[1]郑州大学化学系,郑州450052 [2]郑州大学材料工程学院,郑州450052

出　　处：《无机化学学报》2007年第1期113-117,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.29974026);河南省自然科学基金(No.0611012200);河南省教育厅自然科学基金(No.2006150028)资助项目

摘　　要：合成了2个系列酰胺型液晶冠醚钾配合物,配合物的结构通过元素分析、IR、UV-Vis和AAS等方法表征。液晶行为通过DSC、POM、XRD等方法表征。实验结果表明,所有配合物均具有热致液晶性,且随分子末端烷氧基碳原子数增加,其熔点和清亮点呈规律性变化。与配体相比,配合物液晶态温度范围变宽。液晶相态类型发生改变,配体只有近晶相,而配合物既有近晶相,又有向列相。Abstract： Two series of amide crown-6 were synthesized. Their AAS, DSC, XRD and polarizing type liquid crystalline crown ether potassium complexes containing dibenzo-18- structures and properties were characterized by elemental analysis, IR, UV-Vis, optical microscopy with a heating stage （POM）. Results show that the complexes change into liquid crystal phase when they are heated over their respective melting points, and the complexes melting points T~ and isotropization temperature Ti change regularly with the increase of the carbon numbers in the end alkoxy groups. The liquid crystalline phase temperature range became broader after complexation, and showed nematic and smectic phase comparing with ligands.

关 键 词：钾配合物 液晶冠醚 酰胺型 热致性液晶 

分 类 号：O623.626[理学—有机化学]