具有严格控制的重复单元(最多15个重复)的化学,分析纯低聚(2,5-二烷氧基-1,4-亚苯基亚乙烯基)s [OPVs,烷氧基= O(CH 2)2 OSi i Pr 3 ]的精确合成通过将2,5-二烷氧基-1,4-二乙烯基苯或其衍生物与钼-亚烷基络合物进行烯烃复分解反应,并随后用其二羧醛类似物进行Wittig型裂解,可以实现良好的末端基团。重复单元和末端官能团对其紫外可见光谱和荧光光谱的影响已得到明确证明。
具有严格控制的重复单元(最多15个重复)的化学,分析纯低聚(2,5-二烷氧基-1,4-亚苯基亚乙烯基)s [OPVs,烷氧基= O(CH 2)2 OSi i Pr 3 ]的精确合成通过将2,5-二烷氧基-1,4-二乙烯基苯或其衍生物与钼-亚烷基络合物进行烯烃复分解反应,并随后用其二羧醛类似物进行Wittig型裂解,可以实现良好的末端基团。重复单元和末端官能团对其紫外可见光谱和荧光光谱的影响已得到明确证明。
Synthesis, structural analysis and basic optical properties of tungsten carbonyl dimers bridged with oligo(2,5-dialkoxy-1,4-phenylene vinylene)s through coordination with pyridine have been explored.
Synthesis of Well-Defined Oligo(2,5-dialkoxy-1,4-phenylene vinylene)s with Chiral End Groups: Unique Helical Aggregations Induced by the Chiral Chain Ends
Oligo(2,5‐dialkoxy‐1,4‐phenylenevinylene)s containing three different chiral alkoxy substituents on the phenyl endgroups with structurally regular (all trans) controlled repeat units have been prepared; these compounds showed highly enhanced aggregation‐induced circular dichroism (AICD; formation of supramolecular polymers), and an inversion of the CD signal was observed even with the same end groups