含二甲基咪唑分子基介电材料的合成及性质研究

摘要室温下，通过溶液法，将2-甲基咪唑与金属盐氯化镉反应，得到新的化合物（1），通过单晶X-射线测定表明：化合物（1）结晶在单斜晶系，P21/n空间群，晶胞参数a=8。2664(14)Å，b=15。038(3)Å，c =14。147(2) Å，β=104。744(2) ，Z=4，V=1700。7(5)Å3，Dc=1。678g/cm3，Mr=429。62，μ= 1。600mm-1，R=0。0319和wR=0。0746。86213

室温下，通过溶液法，将2-甲基咪唑与金属盐氯化锰反应，得到新的化合物（2），通过单晶X-射线测定表明：化合物（2）结晶在单斜晶系，P21/n空间群，晶胞参数a= 7。5920(14)Å，b= 7。3085(13)Å，c = 18。019(4)Å，β=90°，Z=4，V=978。2(3)Å3，Dc=1。900g/cm3，Mr=279。86，μ= 2。380mm-1，R=1。057和wR=0。1944。

另外，对化合物（1）和（2）进行了介电、红外、PXRD、荧光等相关性质的研究。经介电测试，化合物（1）出现了介电异样峰，而化合物（2）则没有异样峰。通过荧光测试，化合物（1）固态发光光谱示在407nm（与激发波长= 338nm）有最大发射峰，这表明化合物（1）作为潜在的发光材料；而化合物（2）则没有出现荧光现象。

毕业论文关键词：介电；氯化铬；氯化锰；2-甲基咪唑

Synthesis and Characterization of Molecular-based Dimethyl-imidazole-containing Dielectric Material

Abstract

At room temperature by a solution method, a metal salt of 2-methylimidazole and cadmium chloride to give a new compound (1), by single crystal X- ray tests showed that: the compound (1) crystals monoclinic, P21 / n space group, unit cell parameters a = 8。2664 (14) Å, b = 15。038 (3) Å, c = 14。147 (2) Å, β = 104。744 (2), Z = 4, V = 1700。7 (5) Å3 , Dc = 1。678g / cm3, Mr = 429。62, μ = 1。600mm-1, R = 0。0319 and wR = 0。0746。

At room temperature by a solution method, a metal salt of 2-methylimidazole is reacted with manganese chloride to give the novel compound (2), by single crystal X- ray tests showed that: the compound (2) crystallized in monoclinic, P21 / n space group, unit cell parameters a = 7。5920 (14) Å, b = 7。3085 (13) Å, c = 18。019 (4) Å, β = 90 °, Z = 4, V = 978。2 (3) Å3, Dc = 1。900g / cm3, Mr = 279。86, μ = 2。380mm-1, R = 1。057 and wR = 0。1944。

In addition, the compound (1) and (2) were studied dielectric, IR, PXRD, fluorescent and other related properties。 By dielectric test, the compound (1) there has been a dielectric strange peak, and the compound (2) is not unusual peaks。 By fluorescence test, the compound (1) shows an emission spectrum at 407 nm was solid state (with excitation wavelength = 338nm) have an emission maximum, indicating that the compound (1) as potential light emitting material; and the compound (2) is no fluorescence phenomenon。

Keywords：Dielectric；Chromium chloride; manganese chloride；2-methylimidazole

第一章绪论 1

1。1 介电材料的介绍 1

1。2 介电材料的制备方法 3

1。3 2-甲基咪唑的相关介绍及应用 4

第二章实验部分 6

2。1 含镉的2-甲基咪唑介电材料制备的实验方法、仪器和试剂 6

2。2 含锰的2-甲基咪唑介电材料制备的实验方法、仪器和试剂 6

第三章结果与讨论 8

3。1 化合物(1)的测定以及结构的描述 8

3。2 化合物(2)的测定以及结构的描述 16 含二甲基咪唑分子基介电材料的合成及性质研究:http://www.youerw.com/zidonghua/lunwen_102418.html