hydrogen-bonding groups were synthesized. Chains of hydrogen-bonded fluorenes can be simply endcapped by a variety of chain stoppers, molecules that have one UPy group. In this manner, we have endcapped the hydrogen-bonded fluorene chains with either oligo(p-phenylenevinylene) or perylene bisimide. Energy-transfer experiments in solution and the solid state demonstrate that oligofluorenes can donate energy to a
已经通过
芴单体的逐步
钯催化(铃木)偶联合成了一组
芴低聚物。
脲基
嘧啶酮 (
UPy) 是可通过四
重氢键二聚化的官能团,连接到低聚
芴的两端。所得双
UPy 封端的低聚物自组装成超分子链聚合物。为了比较,合成了具有相同低聚物长度但没有末端氢键基团的低聚
芴。氢键
芴链可以简单地被各种链
终止剂封端,分子具有一个
UPy 基团。以这种方式,我们用低聚(对亚苯基亚
乙烯基)或
苝双
酰亚胺封端了氢键连接的
芴链。