5×104 Da. NMR studies have revealed that MAO methylates these complexes without ionizing the Nithienyl bond; this implies that the polymerization reactions likely follow a non-cationic mechanism similar to that catalyzed by the corresponding NiCCPh complexes studied previously. Complexes 1–5 reacted with CF3SO3H to produce the corresponding NiOSO2CF3 compounds by protonation at the α-C of the thienyl
配合物(1-R,2-R'-
茚基)NiPPh 3(
噻吩基)(R'= H,R = Me(1); Et(2); i -Pr(3); CH 2 Ph(4) ; R'=苯基,R =我(5))已经被制备和表征通过光谱技术和,在的情况下1,2和5,通过X射线晶体学研究。当与MAO结合,这些化合物催化
苯乙炔聚合顺-transoidal聚(苯基
乙炔)与中号瓦特在5-7.5×10的范围内4那里。NMR研究表明,MAO可以使这些络合物甲基化,而不会电离Niththenyl键。这表明聚合反应可能遵循类似于先前研究的相应NiCCPh配合物催化的非阳离子机理。配合物1 - 5与CF反应3 SO 3 H至产生相应NiOSO 2 CF 3个通过质子在
噻吩基部分的α-C的化合物。已经分离出化合物(1-Bz
茚基)Ni(PPh 3)(OSO 2 CF 3)(9)并对其进行了充分表征。