基于偶氮吡啶类衍生物的合成及自组装行为的研究
发布时间：2018-09-09 16:43
【摘要】：基于偶氮吡啶类衍生物具有良好的光响应性和可作为自组装的复合体,本文设计并合成了系列的含有偶氮吡啶基团的衍生物,通过扫描电镜,紫外-可见,荧光等对其组装的行为及性能进行了表征。现将工作概括如下:(1)合成了系列含柔性链烃基和胆固醇结构的偶氮吡啶化合物AP1,AP2,AP4,AP5,用核磁氢谱对其结构进行了表征。通过加入HCl和改变溶剂对其自组装行为进行了研究,发现在氯仿溶液中,这四类化合物与盐酸自组装后的形貌分别为纤维状,条状,短棒状和纤维束等;改变溶剂也可自组装成竹叶状,片状,纤维状和纤维束状等。通过对偶氮吡啶化合物的固体荧光测试,发现荧光减弱。此外,通过DSC测试,发现加酸前后AP1,AP2,AP5都具有良好的液晶性。(2)由于吡啶环上的氮原子能够与羟基形成氢键,将合成的偶氮吡啶化合物AP3,AP5分别与间苯三酚以氢键的形式复合成新的化合物APP3,APP5。通过红外、DSC和SEM证明了氢键的复合。利用紫外-可见研究了两个复合物的可逆顺反异构。通过DSC和POM研究发现单体和复合物都具有良好的液晶性能。经过圆二色谱(CD)的研究发现,这两种复合物都可以组装成螺旋型的结构。(3)合成了三个三角型的偶氮吡啶化合物M1,M2,M3,并用核磁表征其结构。凝胶测试发现M1,M2,M3分别在正丁醇,正戊醇和正辛醇都可以形成有机凝胶。流变测试发现,M2在正丁醇中形成的凝胶储能模量最高,在正辛醇中的储能模量最低;通过对凝胶进行紫外-可见光测试,该类凝胶的模量均受到紫外光的影响。经过圆二色谱(CD)研究发现,M1,M2,M3,都可通过自组装成螺旋结构,并随着柔性链的变化而发生转变。
[Abstract]:Based on the excellent photoresponse of azopyridine derivatives and their self-assembly properties, a series of derivatives containing azopyridine groups were designed and synthesized. The assembly behavior and properties were characterized by fluorescence. The work is summarized as follows: (1) A series of azopyridine compounds with flexible chain hydrocarbon and cholesterol structures have been synthesized and characterized by nuclear magnetic hydrogen spectroscopy (NMR). The self-assembly behavior was studied by adding HCl and changing solvent. It was found that in chloroform solution, the self-assembled morphology of these four compounds and hydrochloric acid were fibrous, strip, short rod and fiber bundles respectively. The modified solvent can also be self-assembled into bamboo leaf, flake, fibrous and fibrous bundles. The fluorescence of azopyridine compounds was detected by solid state fluorescence test. In addition, DSC results show that AP1,AP2,AP5 has good liquid crystal properties before and after adding acid. (2) because nitrogen atoms in pyridine ring can form hydrogen bonds with hydroxyl groups, Synthesis of azopyridine compound AP3,AP5 and isoglucinol in the form of hydrogen bonding to form a new compound APP3,APP5. The composite of hydrogen bond was proved by IR DSC and SEM. The reversible cis-trans isomerization of two complexes was studied by UV-vis. The results of DSC and POM show that both the monomer and the composite have good liquid crystal properties. It was found by circular dichroism (CD) that both of the complexes could be assembled into helical structures. (3) three triangulated azopyridine compounds M _ (1) M _ (2) O _ (2) M _ (3) were synthesized and their structures were characterized by NMR. It was found that the organic gels were formed in n-butanol, n-pentanol and n-octanol, respectively. Rheological tests show that M _ 2 has the highest storage modulus in n-butanol and the lowest in n-octanol. By circular dichroism (CD), it was found that M1OM2M3 can be self-assembled into helical structure and change with the change of flexible chain.
【学位授予单位】：西华师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：O626.32
本文编号：2232985
[Abstract]:Based on the excellent photoresponse of azopyridine derivatives and their self-assembly properties, a series of derivatives containing azopyridine groups were designed and synthesized. The assembly behavior and properties were characterized by fluorescence. The work is summarized as follows: (1) A series of azopyridine compounds with flexible chain hydrocarbon and cholesterol structures have been synthesized and characterized by nuclear magnetic hydrogen spectroscopy (NMR). The self-assembly behavior was studied by adding HCl and changing solvent. It was found that in chloroform solution, the self-assembled morphology of these four compounds and hydrochloric acid were fibrous, strip, short rod and fiber bundles respectively. The modified solvent can also be self-assembled into bamboo leaf, flake, fibrous and fibrous bundles. The fluorescence of azopyridine compounds was detected by solid state fluorescence test. In addition, DSC results show that AP1,AP2,AP5 has good liquid crystal properties before and after adding acid. (2) because nitrogen atoms in pyridine ring can form hydrogen bonds with hydroxyl groups, Synthesis of azopyridine compound AP3,AP5 and isoglucinol in the form of hydrogen bonding to form a new compound APP3,APP5. The composite of hydrogen bond was proved by IR DSC and SEM. The reversible cis-trans isomerization of two complexes was studied by UV-vis. The results of DSC and POM show that both the monomer and the composite have good liquid crystal properties. It was found by circular dichroism (CD) that both of the complexes could be assembled into helical structures. (3) three triangulated azopyridine compounds M _ (1) M _ (2) O _ (2) M _ (3) were synthesized and their structures were characterized by NMR. It was found that the organic gels were formed in n-butanol, n-pentanol and n-octanol, respectively. Rheological tests show that M _ 2 has the highest storage modulus in n-butanol and the lowest in n-octanol. By circular dichroism (CD), it was found that M1OM2M3 can be self-assembled into helical structure and change with the change of flexible chain.
【学位授予单位】：西华师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：O626.32
【参考文献】
相关期刊论文 前2条
1 苏晓渝;谢如刚;;超分子自组装中的非共价键协同作用[J];化学研究与应用;2007年12期
2 刘俊,谭海燕,陈春龙,刘红科,康北笙;芳基柔性二齿配体在金属超分子自组装中的结构调控作用[J];化学通报;2002年06期
相关硕士学位论文 前1条
1 赫长生;嵌段共聚物在选择性溶剂中自组装行为的研究[D];华中科技大学;2004年
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