Synthesis and characterisation of new acetylide-functionalised oligothiophenes and their dinuclear platinum complexes
作者:Jack Lewis、Nicholas J. Long、Paul R. Raithby、Gregory P. Shields、Wai-Yeung Wong、Muhammad Younus
DOI:10.1039/a704708h
日期:——
5-bis(trimethylsilylethynyl)thiophene Ia, 2,5-diethynylthiophene Ib, 5,5′-bis(trimethylsilylethynyl)-2,2′-bithiophene IIa, 5,5′-diethynyl-2,2′-bithiophene IIb, 5,5″-bis(trimethylsilylethynyl)-2,2′∶5′,2″-terthiophene IIIa and 5,5″-diethynyl-2,2′∶5′,2″-terthiophene IIIb, has been prepared. Treatment of the complex trans-[PtPh(Cl)(PR3)2] (R = Et or Bun) with half an equivalent of the diterminal alkynyl
通过骨架中的低聚噻吩键合单元扩展π共轭的一系列硬杆炔烃,2,5-双(三甲基甲硅烷基乙炔基)噻吩Ia,2,5-二乙炔基噻吩Ib,5,5'-双(三甲基甲硅烷基乙炔基)-2,2 '-联噻吩IIa,5,5'-二乙炔基-2,2'-联噻吩IIb,5,5''-双(三甲基甲硅烷基乙炔基)-2,2'∶5',2''-对噻吩IIIa和5,5''-二乙炔基制备了-2,2'∶5',2″-三噻吩IIIb。用半当量的CH 2 Cl 2 -NHPr i 2中的二末端炔基低聚噻吩发色团Ib-IIIb处理复杂的反式-[PtPh(Cl)(PR 3)2 ](R = Et或Bu n)。在室温下,CuI的存在提供了铂二聚体反式-[(Et 3 P)2 PhPt– C CR'C C–PtPh(PEt 3)2 ](R'=噻吩二基1a,联噻吩二基2或叔噻吩二基3)和反式[[(Bu n 3 P)2 PhPt– C CR'C C–PtPh(PBu