Synthesis and Physical Characterization of β-Alkyl Oligoselenophenes
摘要:
alpha-Conjugated oligoselenophenes are characterized by very low solubility in organic solvents. Their higher solubility may be achieved by introducing alkyl side chains into the -positions of selenophene moieties. For the first time, ,-dihexyl sexiselenophene is synthesized according to the conventional approach. Physical and electrochemical studies of ,-dialkyl oligomers are analyzed and compared with corresponding thienyl oligomers.
在这里我们报告了通过2,5-二溴-3-烷基硒烯和(E)-1,2-双(三丁基锡烷基)乙烯的聚合反应合成新型聚(3-烷基-2,5-亚硒基亚乙烯基)(PSV)在微波辅助的Stille耦合条件下。制备了含有己基和癸基侧链的聚合物。癸基取代的聚合物在常见的有机溶剂中显示出良好的溶解性,1 H NMR分析表明侧链区域规则性超过90%。该聚合物在溶液中在621 nm处显示最大吸收,成膜时吸收有明显的红移。由PSV制成的薄膜晶体管表现出的空穴载流子迁移率高达0.01 cm 2/(V s)。当将不含羟基的有机电介质用作栅极绝缘体时,聚合物显示出平衡的双极性性能。
Controlling Phase Separation and Optical Properties in Conjugated Polymers through Selenophene−Thiophene Copolymerization
作者:Jon Hollinger、Ashlee A. Jahnke、Neil Coombs、Dwight S. Seferos
DOI:10.1021/ja103191u
日期:2010.6.30
Selenophene-thiophene blockcopolymers were synthesized and studied. The properties of these novel blockcopolymers are distinct from those of statistical copolymers prepared from the same monomers with a similar composition. Specifically, the blockcopolymers exhibit broad and red-shifted absorbance features and phase-separated domains in the solid state. Scanning transmission electron microscopy
Regioregular poly(3-hexyl)selenophene: a low band gap organic hole transporting polymer
作者:Martin Heeney、Weimin Zhang、David J. Crouch、Michael L. Chabinyc、Sergey Gordeyev、Rick Hamilton、Simon J. Higgins、Iain McCulloch、Peter J. Skabara、David Sparrowe、Steve Tierney
DOI:10.1039/b712398a
日期:——
The synthesis of regioregular poly(3-hexyl)selenophene is reported, and its optical and electrical properties are compared to those of regioregular poly(3-hexyl)thiophene.