芴胺类双席夫碱及其铁盐的制备、表征及吸波性能研究  

Synthesis,characterization and microwave absorbing properties of fluorene amine bis-Schiff bases and their iron salts

作　　者：刘峥[1,2] 王浩 郭亚晋[1,2] 邓家炬 张淑芬 

机构地区：[1]桂林理工大学化学与生物工程学院,广西桂林541004 [2]广西电磁化学功能物质重点实验室,广西桂林541004

出　　处：《功能材料》2018年第1期1183-1190,共8页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(21266006);广西自然科学基金资助项目(2016GXNSFAA380109)

摘　　要：以2-氨基芴、乙二醛、对苯二甲醛和4,4’-联苯二甲醛为原料,合成了3种新型席夫碱,并利用FeCl3制备了相应的铁盐。利用质谱、红外、紫外和荧光分析等手段对席夫碱及其铁盐的结构进行了表征。测定了3种席夫碱及其铁盐的电导率及电磁参数,结果表明,共轭平面性质的席夫碱铁盐具有吸波性能,且电导率较席夫碱本身提高了2~3个数量级。并采用密度泛函理论对席夫碱进行结构优化,将优化的数据进行初筛,对可能影响较大的某些量子化学参量进行了分析,最后通过逐步线性回归的方法建立了线性回归方程,方程结果表明电导率越大、C12—N14的键长越短,则吸波损耗越好。Three new Schiff bases were synthesized by using 2-aminofluorene,glyoxal,p-xylylene and 4,4＇-biphenyldialdehyde as raw materials,and the corresponding iron salts were prepared by FeCl_3.The structure of Schiff bases and their iron salts were characterized by mass spectrometry,IR,UV and fluorescence analysis.The conductivity and electromagnetic parameters of the three Schiff bases and their iron salts were determined.The results showed that the iron salts with conjugated plane properties had absorbing properties and the conductivity increased by 2-3 magnitude.And the density functional theory was used to optimize the structure of Schiff base.The optimized data were screened and some quantum chemical parameters with large influence were analyzed.Finally,the linear regression equation was established by stepwise linear regression.The results show that the larger the conductivity and the shorter the bond length of C12-N14,the better the absorption loss.

关 键 词：芴胺类双席夫碱 铁盐 电导率 吸波性能 

分 类 号：O69[理学—化学]