摘要
目的研究新的β－二酮铜（Ⅱ）配合物液晶的合成及其性质．方法合成两种新的β－二酮：１－对辛氧基联苯基－３－１′－甲基丙基－１，３－丙二酮，１－对壬氧基联苯基－３－１′－甲基丙基－１，３－丙二酮，和它们的铜（Ⅱ）配合物，确定化学结构后，通过偏光显微镜下的相变观察及ＤＳＣ测定，确定配体和配合物的液晶相态．结果两种β－二酮配体呈现ＳＡ相液晶，而两种配合物呈现单变Ｎ液晶．结论双［１－对烷氧基联苯基－３－１′－甲基丙基－１，３－丙二酮］合铜（Ⅱ）的β－二酮配体３位异丁基使配合物表现出单Ｎ液晶态．
Aim To investigate the synthesis and properties of new βdionato copper (Ⅱ) complexes. Methods Two noval βdiketones:1(pnoctoxylbiphenyl)31′methyl propyl1,3dione,1(pnnonoxyl biphenyl)31′methylpropyl1,3dione,and their copper (Ⅱ) complexes were prepared Their chemical structures were charactrized by 1 HNMR, IR and elemental analysis etc Their phase transitions were studied by polarizing microscope and differential scanning calorimetry Results The two βdiketone ligands exhibit SA mesophase and their Cu (Ⅱ) complexes exhibit monotropic N mesophase Comclusion The 31′methyl propyl of the βdiketone ligands leading to their Cu(Ⅱ) complexes show monotropic N mesophase
出处
《北京理工大学学报》
EI
CAS
CSCD
1998年第3期385-389,共5页
Transactions of Beijing Institute of Technology
关键词
Β-二酮
液晶
铜配合物
βdiketone
copper(Ⅱ) compoexes
liquid crystals
