Salen 型镍配合物的合成及催化丙烯齐聚的研究

论文编号:CL070  论文字数:9214,页数:25

摘 要：本文以3，5-二叔丁基水杨醛与乙二胺为原料反应合成Salen配体，然后用这种Salen配体与醋酸镍反应生成Salen型镍配合物。反应得到的配合物用红外、紫外以及DSC进行表征。考察了两种Salen型镍配合物催化剂：3，5-二叔丁基水杨醛乙二胺镍与水杨醛乙二胺镍，用于催化剂丙烯齐聚活性。用气相色谱对丙烯齐聚反应的产物进行分析。最后，加入三苯基膦，用紫外光谱研究了配合物/PPh3溶液体系，推测了催化活性中心形成的可能机理。                   

关键词：丙烯齐聚；Salen型镍配合物；3，5-二叔丁基水杨醛；乙二胺; 三苯基膦;
                      
Abstract: In this article， salen-type ligand was synthesized by 3, 5-di-tert-butyl salicylaldehyde and ethylenediamine, then salen-type nickel complexes was prepared with the ligand and nickel acetate. Then the ligand and complexs were characteristiced by IR, UV and DSC. The catalytic performance in propylene oligomerization was in propylene for two salen-typed: 3, 5-di-tert-butyl salicylaldehyde ethylenediamine nickel andfor salicylaldehyde ethylenediamine. Propylene oligomerization products were analyzed by gas chromatography .The properties of complexes/triphenylphosphine solution system were investigated by UV method, and then the possible formation mechanism of catalytic active site was deduced.
Keywords：Propylene Oligomerization; Salen-type nickel complexes；3, 5-Di-tert-butyl salicylaldehyde；Sthylenediamine；Triphenylphosphine

目  录
中文摘要 I
英文摘要 II
目录 III
1. 绪论 1
 1.1  丙烯二聚体系................................................. 1
 1.1.1 丙烯二聚催化剂体系的研究意义 1
 1.1.2 丙烯二聚催化剂体系的种类............................... 1
 1.2.2.1 镍系丙烯二聚催化体系.............................. 1
 1.2.2.2 非镍系丙烯二聚催化体系............................ 2
 1.2  丙烯二聚反应的机理........................................... 2
 1.3  六碳烯烃..................................................... 3
 1.4  Salen型镍系催化剂............................................ 4
 1.5  课题研究的意义和方向......................................... 5
2.实验部分........................................................... 6
 2.1 原料和仪器.................................................... 6
 2.1.1 原料和试剂............................................. 6
 2.1.2 仪器和设备............................................. 6
 2.2 实验步骤...................................................... 7
 2.2.1 Salen配体的制备.........................................7
 2.2.2 Salen催化剂的制备.......................................8
 2.2.3 丙烯齐聚反应........................................... 9
 2.3 分析与测试.................................................... 9
 2.3.1 配体配合物的红外分析................................... 9
 2.3.2 配合物的DSC热性能测试.................................. 9
 2.3.3 紫外分析............................................... 9
 2.3.4 齐聚物的气相色谱分析................................... 9
3. 结果与讨论....................................................... 10
 3.1 配体的分析和表征............................................ 10
 3.1.1 配体的红外分析........................................ 10
 3.1.2 配体的紫外分析........................................ 11
 3.2 配合物的分析和表征.......................................... 11
 3.2.1 配合物的红外分析 ..................................... 11
 3.2.2 配合物的紫外分析...................................... 12
 3.2.3 配合物的DSC热性能分析................................. 13
 3.3 丙烯齐聚催化性能的分析...................................... 14
 3.4 三苯基膦的加入对催化活性机理影响............................ 15
4. 总结与展望....................................................... 17
致谢 19
参考文献 20