摘 要噻咯及其衍生物具有优良的各项光电性能,如高电子亲和力和高电子迁移率,因而备受关注。本论文设计合成与表征了一种新型的苯并二噻咯功能单体,计算了其前线轨道能级。43978
设计、计算、合成了新型的苯并二噻咯分子,并对其进行了表征。苯并二噻咯分子表现出其独有的“三峰形态”紫外吸收:在280 nm-400 nm的吸收范围内,存在302 nm、313 nm和344 nm三处最大吸收峰。
毕业论文关键词:新型给电子单体;苯并二噻咯; 独特紫外吸收
Abstract Silole derivative become more and more attractive because of its excellent properties, such as good electron affinity and high electric migration rate. In this article, a novel benzo[b]disilole functional monomer was designed, synthesized and characterized successfully. The molecular frontier orbitals of a series of Aromatic-Fused-Disilole, including benzo[b]disilole, were Calculated via Gaussian Calculation and been analyzed.
A novel benzo[b]disilole functional core was designed, synthesized, calculated and characterized. UV-vis research suggests that, benzo[b]disilole behaves a special Three-Peak-Absorbance: there are three maximum absorbance peaks at 302 nm, 313 nm and 344 nm, respectively. This is a unique UV-vis absorbance that has not been reported yet.
Key words: Novel electron donor block;Benzo[b]disilole;Unique UV-vis Absorbance
目录
摘 要 1
ABSTRACT 1
1 引言 2
1.1 硅桥联并环梯形共轭体系-苯并噻咯的构筑及其官能化 2
1.1.1 硅氢加成法 2
1.1.2 Heck反应法 3
1.1.3 金复合物催化剂催化的分子内烯丙基转移硅烷化反应法 4
1.1.4 钯催化的2-溴代三甲基硅基苯与炔烃的反应 4
1.1.5 一锅法反应 5
1.1.6 乙酰丙酮铁催化法反应 6
1.4 本论文的立题思想 7
2新型苯并二噻咯单体的合成与表征 8
2.1 原料及试剂 9
2.2 测试仪器 10
2.3 苯并二噻咯单体分子的合成与表征 10
2.3.1 实验试剂的预处理及基本操作 10
2.3.2 1,4-二(烯丙基二甲基硅基)-2,5-二(三甲基硅乙炔基)苯(2-2)的合成 11
2.3.3 1,4-二(烯丙基二甲基硅基)-2,5-二乙炔基苯(2-3)的合成 12
2.3.4 1,4-二(烯丙基二甲基硅基)-2,5-二(溴乙炔基)苯(2-4)的合成 12
2.3.5 1,1,4,4-四甲基-2,5-二溴-3,6-二烯丙基苯并[1,2-b:4,5-b’]二噻咯(2-5)的合成 12
2.3.6 1,1,4,4-四甲基苯并[1,2-b:4,5-b’]二噻咯(1-9)的合成 13
2.4 实验结果与讨论 13
2.4.1 分子内烯丙基转移反应关环合成苯并二噻咯功能单体的反应机理研究 13
2.4.2 紫外-可见光吸收光谱 15
2.4.3 前线轨道模拟计算与分析 17