Synthesis, Characterization, and Optical Response of Dipolar and Non-Dipolar Poly(phenylenevinylene) Dendrimers
作者:Enrique Díez-Barra、Joaquín C. García-Martínez、Sonia Merino、Riánsares del Rey、Julián Rodríguez-López、Prado Sánchez-Verdú、Juan Tejeda
DOI:10.1021/jo015764r
日期:2001.8.1
New dipolar and non-dipolar poly(phenylenevinylene) dendrimers bearing electron-donating and electron-withdrawing groups have been efficiently synthesized using Heck and Horner-Wadsworth-Emmons reactions. The photoluminescence of these systems may be tuned in the blue zone by choosing the appropriate peripheral groups. Despite the meta-substitution pattern, large Stokes shifts can be observed when
使用Heck和Horner-Wadsworth-Emmons反应已有效地合成了带有供电子基团和吸电子基团的新型偶极和非偶极聚(亚苯基亚乙烯基)树状聚合物。这些系统的光致发光可通过选择适当的外围基团在蓝色区域进行调节。尽管有亚取代模式,但当pi供体基团和pi受体基团通过间亚苯基亚乙烯基系统连接时,仍可观察到较大的斯托克斯位移。