Layer-Block Dendrimers with Alternating Thienylenevinylene and Phenylenevinylene Units
详细信息 查看全文
- 作者：Caroline Hadad ; Joaqu铆n C. Garcı ; ́ ; a-Martı ; ́ ; nez ; Juli谩n Rodrı ; ́ ; guez-L贸pez
- 刊名：The Journal of Organic Chemistry
- 出版年：2012
- 出版时间：July 20, 2012
- 年：2012
- 卷：77
- 期：14
- 页码：6223-6230
- 全文大小：380K
- 年卷期：v.77,no.14(July 20, 2012)
- ISSN：1520-6904
文摘
A series of new hybrid, layer-block 蟺-conjugated dendrons and dendrimers with alternating thienylenevinylene and phenylenevinylene units has been prepared by means of an orthogonal and convergent-growth methodology that made use of the Horner鈥揥adsworth鈥揈mmons (HWE) reaction. The placement of the thiophene and benzene rings can be accurately controlled to afford a large variety of dendritic structures, although access to compounds of high generation proved difficult. The optical properties of the synthesized dendrimers were determined by UV/vis and fluorescence spectroscopy, and the influence of the generation and nature of the core on the behavior of these materials was evaluated.